Agricultural waste treatment systems and related methods

Abstract

A waste disposal system for agricultural slurry includes a sump, a check valve assembly, and a settling volume. The sump receives an agricultural slurry that is pumped through a check valve assembly to a settling volume. The check valve assembly may include a pinch valve. Optionally, a storage volume that is vented to the atmosphere may be used to further prevent flow from the settling volume to the sump. The settling volume is provided with a discharging device, and the discharging device can discharge redundant water in the slurry to the environment.

Description

[0001] Cross-reference to related applications

[0002] This application claims priority to U.S. Provisional Application No. 63 / 586608, filed September 29, 2023; U.S. Provisional Application No. 63 / 586619, filed September 29, 2023; U.S. Provisional Application No. 63 / 586630, filed September 29, 2023; and U.S. Provisional Application No. 63 / 586638, filed September 29, 2023, all of which are incorporated herein by reference in their entirety. Background Technology

[0003] This disclosure generally relates to agricultural sampling and analysis, and more specifically, to a waste treatment system for agricultural waste slurry generated from soil and other types of agricultural-related sampling and chemical characterization analysis.

[0004] Regular soil testing is an important aspect of agricultural technology. The test results provide valuable information about the soil's chemical composition, such as the levels of nutrients available to plants and other important properties (e.g., nitrogen, magnesium, phosphorus, potassium, pH, etc.), so that various soil amendments can be added to maximize the quality and quantity of crop production.

[0005] In some existing soil sampling procedures, collected samples are dried, ground, water is added, and then filtered to obtain a soil slurry suitable for analysis. An extractant is added to the slurry to extract plant-available nutrients. The slurry is then filtered to produce a clear solution or supernatant, which is mixed with chemical reagents for further analysis. Waste generated during these soil sampling procedures must be properly disposed of.

[0006] Improvements are needed in the handling of waste generated during the testing of soil, vegetation, and fertilizers. Summary of the Invention

[0007] In one embodiment, the present invention provides a waste treatment system and a related method for treating waste collected, processed, and analyzed from agricultural samples (such as, but not limited to, soil samples). The waste treatment system is capable of handling slurries and other wastes, particularly slurries and wastes prior to the addition of reactants and reagents. Advantageously, the system can suitably handle waste slurries during power outages without the risk of backflow, leakage, or other undesirable situations.

[0008] In one embodiment, the waste treatment system includes a storage tank, a check valve, and a setting volume. The storage tank has a reservoir, an inlet, and an outlet, the inlet and the outlet being fluidly connected to the reservoir. The storage tank is configured to receive slurry at the inlet. A check valve assembly is fluidly connected to the outlet of the storage tank. The check valve assembly is configured to selectively allow the slurry to pass through. The setting volume has a settling reservoir, an inlet, and a discharge device. The inlet and the discharge device are fluidly connected to the settling reservoir. The inlet is fluidly connected to the check valve assembly.

[0009] In another embodiment, a waste treatment system includes a storage tank, a check valve assembly, and a settling volume. The storage tank has a reservoir, an inlet, and an outlet. The inlet and the outlet are fluidly connected to the reservoir. The storage tank is configured to receive slurry at the inlet. The check valve assembly is fluidly connected to the outlet of the storage tank. The check valve assembly has a pinch valve configured to selectively allow the slurry to pass through it. The settling volume has a settling reservoir, an inlet, and a discharge device. The inlet and the discharge device are fluidly connected to the settling reservoir. The inlet is fluidly connected to the check valve assembly.

[0010] In another embodiment, a method for treating waste can be implemented. First, the waste slurry is received in a storage container of a storage tank. Second, the waste slurry is transferred from the storage container of the storage tank to a settling volume. Third, a valve is closed to prevent the waste slurry from flowing back from the settling volume to the storage container.

[0011] Although these systems (e.g., sample collection, preparation, processing, and waste treatment systems) may be described herein with reference to the processing of soil samples (which represents one class of uses of the disclosed embodiments), it should be understood that these systems (including equipment and related processes) can also be used to process other types of agricultural-related samples, including, but not limited to, vegetation / plants, forage, fertilizer, feed, milk, or other types of samples. Therefore, the embodiments of the invention disclosed herein should be broadly understood as an agricultural sampling system. Consequently, the invention is clearly not limited to use with the processing and analysis of soil samples. Attached Figure Description

[0012] The invention will be more fully understood through detailed description and accompanying drawings, wherein similar elements are similarly labeled, wherein:

[0013] Figure 1 This is a flowchart illustrating the agricultural sampling and analysis system according to the present disclosure, showing the high-level functional aspects of each subsystem of the sampling and analysis system;

[0014] Figure 2 A schematic diagram of a programmable processor-based central processing unit (CPU) or system controller used to control the systems and devices disclosed herein;

[0015] Figure 3 A basic schematic diagram of the first embodiment of the agricultural sample analysis system;

[0016] Figure 4 To illustrate a schematic diagram of a waste treatment system, the waste treatment system is... Figure 3 It is part of an agricultural sample analysis system;

[0017] Figure 5 For can be used Figure 4 A schematic diagram of a first embodiment of a check valve assembly in a waste treatment system; and

[0018] Figure 6 This is a schematic diagram of a second embodiment of a waste treatment system.

[0019] Figure 7 For can be used Figure 4 and Figure 6 A schematic diagram of a settling volume in a waste treatment system.

[0020] All figures are not necessarily drawn to scale. Unless otherwise expressly stated, a part that appears and is numbered in one figure but appears in other figures but is not numbered is the same part. Unless otherwise expressly stated, references to integer figure numbers appearing in multiple figures with the same integer number but different letter suffixes should be understood as references to all those figures collectively. Detailed Implementation

[0021] The features and advantages of the invention are illustrated and described herein by reference to exemplary (“Example”) embodiments. The description of exemplary embodiments is intended to be read in conjunction with the accompanying drawings, which are considered an integral part of the entire written description. Therefore, this disclosure should not be limited to such exemplary embodiments, which illustrate some possible non-limiting combinations of features that may exist alone or in other combinations of features.

[0022] In the description of the embodiments disclosed herein, any references to direction or orientation are merely for ease of description and not intended to limit the scope of the invention in any way. Relative terms such as “lower,” “upper,” “horizontal,” “vertical,” “above,” “below,” “up,” “top,” and “bottom,” and their derivatives (e.g., “horizontally,” “downward,” “upward,” etc.) should be interpreted as referring to the orientation as described subsequently or as shown in the figures discussed. These relative terms are merely for ease of description and do not require the device to be constructed or operated in a particular orientation. Terms such as “attach,” “connect,” “join,” “interconnect,” etc., refer to a relationship in which structures are directly or indirectly fixed or attached to each other through intermediate structures, and to movable or rigid attachments or relationships, unless otherwise explicitly stated.

[0023] As used throughout, any range disclosed herein is used to briefly describe each value within that range. Any value within a range may be chosen as an endpoint of that range. Furthermore, all references cited herein are incorporated herein by reference in their entirety. In the event of any conflict between definitions in this disclosure and definitions in the cited references, this disclosure shall prevail.

[0024] Figure 1 This is a schematic flowchart of the agricultural sampling system 3000 according to this disclosure. The subsystems disclosed herein collectively realize the complete processing and chemical analysis of agricultural samples from farmland collection, sample preparation to final chemical analysis. In one embodiment, system 3000 can be integrated into a mobile sampling vehicle configured to traverse farmland for collecting and processing soil samples from various areas of the field. This enables the accurate generation of a comprehensive nutrient and chemical profile of the field, allowing for the rapid and convenient determination of the required soil conditioner and application amount for each area based on the quantification of plant-available nutrients and / or chemical properties in the samples. System 3000 advantageously enables the simultaneous processing and chemical analysis of multiple samples for various chemical components or properties, such as, but not limited to, plant-available nutrients. In one embodiment, the sampling system can be a soil sampling system configured to determine nutrient levels in different parts of the farmland for crop production. However, the sampling system can be used for various other types of agricultural sampling as described above.

[0025] Agricultural sampling systems 3000 typically include a sample probe acquisition subsystem 3001, a sample preparation subsystem 3002, and a chemical analysis subsystem 3003. The sample acquisition subsystem 3001 and the mobile sampling vehicle are fully described in U.S. Patent Application Publication No. 2018 / 0124992A1. In the case of soil sampling, the sample acquisition subsystem 3001 typically performs the function of extracting and collecting soil samples from the field. The samples can be in the form of soil columns or soil cores. The collected soil cores are transferred to a storage chamber or container for further processing by the sample preparation subsystem 3002. The system for analyzing agricultural samples disclosed herein can be used in conjunction with and can be part of a holistic agricultural sampling and analysis system, such as, but not limited to, those described in the following documents: U.S. Patent Application Publication Nos. 2018 / 0124992A1, US20210123836A1, US20210123936A1, US20210131917A1, US20210131929A1, US... 20210208035A1, US20210208036A1, US20210208037A1, US20210208123A1, US20210268456A1, US20210 285869A1, US20210341442A1, US20210341452A1, US20220196628A1, US20230133335A1, US2023014467 0A1, US20230151810A1, US20230173415A1, US20230243792A1, US20230243801A1, US20230243802A1, U S20230243804A1, US20230266289A1, US20230266290A1, US20230273130A1, US20230273171A1, US2023 0273172A1, US20230273173A1, US20230304987A1, US20230417363A1, US20230417635A1, US202401897 43A1, US20240189744A1, US20240192112A1, US20240192708A1, US20240198331A1, US20240200547A1;PCT official numbers WO2021 / 171120, WO2021 / 171121, WO2022 / 243792, WO2022 / 243797, WO2022 / 243806, WO2022 / 243807, WO2022 / 243809, WO2022 / 259071, WO2022 / 259073 , WO2022 / 259074, WO2023 / 031725, WO2023 / 031726, WO2023 / 031727, WO2023 / 04 2032, WO2023 / 042033, WO2023 / 042035, WO2023 / 042036, WO2023 / 042037, WO202 3 / 042038, WO2023 / 042039, WO2023 / 161727, WO2023 / 161728, WO2023 / 170480, W O2023 / 170482, WO2023 / 227959, WO2023 / 227960, WO2023 / 248015, WO2023 / 2480 16, WO2024 / 023728, WO2024 / 023729, WO2024 / 023730 and WO2024 / 023731; PCT application number P CT / IB2024 / 051283 (submitted on February 12, 2024) and PCT / IB2024 / 051820 (submitted on February 26, 2024);U.S. Patent Application Nos. 63 / 551120 (filed February 8, 2024), 63 / 552730 (filed February 13, 2024), 63 / 552739 (filed February 13, 2024), 63 / 559305 (filed February 29, 2024), 63 / 559308 (filed February 29, 2024), 63 / 559312 (filed February 29, 2024), 63 / 559316 (filed February 29, 2024), 63 / 586486 (filed September 29, 2023), and 63 / 586489 (Submitted on September 29, 2023), 63 / 586497 (submitted on September 29, 2023), 63 / 586500 (submitted on September 29, 2023), 63 / 586504 (submitted on September 29, 2023), 63 / 586510 (submitted on September 29, 2023), 63 / 586514 (submitted on September 29, 2023), 63 / 586524 (submitted on October 11, 2023), 63 / 586529 (submitted on September 29, 2023), 63 / 586545 (submitted on September 29, 2023) Submitted on September 29, 2023: 63 / 586551, 63 / 586555, 63 / 586562, 63 / 586608, 63 / 586619, 63 / 586630, 63 / 586638, 63 / 586656, 63 / 586672, 63 / 586672. Filed on September 29, 2023, 63 / 586702, 63 / 586726, 63 / 586955, 63 / 586966, 63 / 586978, 63 / 586984, 63 / 586990, and 63 / 646070 (filed on May 13, 2024).

[0026] The sample preparation subsystem 3002 typically performs the following functions: receiving agricultural sample solids or cores into a mixing device, adding a predetermined amount or volume of filtered water, mixing the soil and water mixture to form a sample slurry, coarsely filtering the slurry and transferring the filtered slurry to a stirring device, measuring the actual water / soil ratio of the slurry, and diluting the slurry with water to achieve a target water / soil ratio.

[0027] The chemical analysis subsystem 3003 typically performs the following functions: extracting or extracting slurry through a fine filter unit, adding an extractant, mixing the extractant and slurry to extract the target analyte (e.g., plant nutrients), treating the extractant-slurry mixture to produce a clear liquid or supernatant, removing or transferring the supernatant, injecting reagents and holding the supernatant-reagent mixture for a period of time to ensure a sufficient chemical reaction with the reagents, and measuring the analyte, for example, by absorbance or other analytical techniques via colorimetric analysis.

[0028] The sample preparation and chemical analysis subsystems 3002 and 3003, as well as their devices or components, will now be described in more detail.

[0029] As already mentioned herein, the agricultural sampling systems, subsystems, and related processes / methods disclosed herein can be used to process and detect soil, vegetation / plants, fertilizers, feed, milk, or other agriculturally relevant parameters of interest. In particular, in addition to soil and plant / vegetation sampling, embodiments of the chemical analysis portion (chemical analysis subsystem 3003) of the systems disclosed herein can also be used to detect a variety of chemically relevant parameters and analytes (e.g., nutrients / chemical substances of interest) in other fields. Some non-limiting examples (including soil and plants) are as follows.

[0030] Soil analysis: nitrate, nitrite, total nitrogen, ammonium, phosphate, orthophosphate, polyphosphate, total phosphate, potassium, magnesium, calcium, sodium, cation exchange capacity, pH, cation base saturation, sulfur, zinc, manganese, iron, copper, boron, soluble salts, organic matter, excess lime, activated carbon, aluminum, amino sugar nitrate, ammonia nitrogen, chloride, carbon-nitrogen ratio, electrical conductivity, molybdenum, texture (sand, silt, clay), cyst nematode egg count, mineralizable nitrogen, and soil porosity.

[0031] Plants / vegetation: nitrogen, nitrate, phosphorus, potassium, magnesium, calcium, sodium, cation base saturation, sulfur, zinc, manganese, iron, copper, boron, ammonia nitrogen, carbon, chloride, cobalt, molybdenum, selenium, total nitrogen and live plant parasitic nematodes.

[0032] Fertilizer: Moisture / Total Solids, Total Nitrogen, Organic Nitrogen, Phosphate, Potassium, Sulfur, Calcium, Magnesium, Sodium, Iron, Manganese, Copper, Zinc, pH, Total Carbon, Soluble Salts, Carbon-to-Nitrogen Ratio, Ammoniacal Nitrogen, Nitrate Nitrogen, Chloride, Organic Matter, Ash, Electrical Conductivity, Kjeldahl Nitrogen, Escherichia coli, Fecal Coliforms, Salmonella, Total Kjeldahl Nitrogen, Total Phosphate, Potassium, Nitrate Nitrogen, Water-Soluble Nitrogen, Water-Insoluble Nitrogen, Ammoniacal Nitrogen, Humic Acid, pH, Total Organic Carbon, Bulk Density (Compacted State), Moisture, Sulfur, Calcium, Boron, Cobalt, Copper, Iron, Manganese, Arsenic, Chloride, Lead, Selenium, Cadmium, Chromium, Mercury, Nickel, Sodium, Molybdenum, Zinc.

[0033] Feed: Alanine, Histidine, Proline, Arginine, Isoleucine, Serine, Aspartic Acid, Leucine, Threonine, Cystine, Lysine, Tryptophan, Glutamic Acid, Methionine, Tyrosine, Glycine, Phenylalanine, Valine (crude protein required), Arsenic, Lead, Cadmium, Antimony, Mercury.

[0034] Vitamin E (β-tocopherol), Vitamin E (α-tocopherol), Vitamin E (δ-tocopherol), Vitamin E (γ-tocopherol), Vitamin E (total), Moisture, Crude Protein, Calcium, Phosphorus, Acid Detergent Fiber, Ash, Total Digestible Nutrients, Energy (Digestible and Metabolizable), Net Energy (Weight Gain, Lactation, Maintenance), Sulfur, Calcium, Magnesium, Sodium, Manganese, Zinc, Potassium, Phosphorus, Iron, Copper (Not applicable to premixes), Saturated Fat, Monounsaturated Fat, Omega-3 Fatty Acids, Polyunsaturated Fat, Trans Fat Fatty acids, omega-6 fatty acids (requires crude or acidic fats), glucose, fructose, sucrose, maltose, lactose, aflatoxins (B1, B2, G1, G2), deoxynivalenol, fumonisin, ochratoxin, T-2 toxin, zearalenone, vitamins B2, B3, B5, B6, B7, B9 and B12, calories, chloride, crude fiber, lignin, neutral detergent fiber, non-protein nitrogen, selenium, total iodine, total starch, vitamin A, vitamin D3 and free fatty acids.

[0035] Feed: Moisture, crude protein, acid detergent fiber (ADF), neutral detergent fiber (NDF), total digestible nutrients (TDN), net energy (weight gain, lactation, maintenance), relative feed value, nitrates, sulfur, copper, sodium, magnesium, potassium, zinc, iron, calcium, manganese, sodium, phosphorus, chloride, fiber, lignin, molybdenum, hydrocyanic acid, and selenium (United States Pharmacopeia standards).

[0036] Milk: milk fat, true protein, somatic cell count, lactose, other solids, total solids, added water, milk urea nitrogen, acidity, pH, antibiotic testing, and microorganisms.

[0037] Although the following description pertains to soil testing, any extraction, analysis, or measurement system can be used for any of the materials described above.

[0038] control system

[0039] Figure 2 To illustrate a system schematic of control or processing system 2800, the system includes a central processing unit (CPU) or system controller 2820 based on a programmable processor, as referenced herein. System controller 2820 may include one or more processors, non-transitory tangible computer-readable media, programmable input / output peripherals, and all other necessary electronic accessories typically associated with a full-featured processor-based controller. Control system 2800, including controller 2820, is operatively and communicatively linked via suitable communication links to the various soil sample processing and analysis systems and apparatuses described elsewhere in this document, in order to control the operation of these systems and apparatuses in a fully integrated and orderly manner.

[0040] According to one embodiment, the control system 2800, including the programmable controller 2820, can be mounted on a fixed support in any location, or conversely, mounted on a translationally movable self-propelled or traction machine (e.g., a vehicle, tractor, combine harvester, etc.), which may include agricultural implements (e.g., seeders, cultivators, plows, sprayers, spreaders, irrigation implements, etc.). In one example, the machine performs operations on a tractor or vehicle coupled to implements used for agricultural operations. In other embodiments, the controller may be part of a fixed station or facility.

[0041] The control system 2800 (whether on or off a portable machine) typically includes a controller 2820, a non-transitory tangible computer or machine-accessible and readable medium (such as memory 2805), and a network interface 2815. The computer or machine-accessible and readable medium may include any suitable volatile and non-volatile memory or device operatively and communicatively coupled to a processor (multiple processors). Any suitable combination and type of volatile or non-volatile memory may be used, including, but not limited to: random access memory (RAM) and its various types, read-only memory (ROM) and its various types, hard disks, solid-state drives, flash memory, or other memory and devices operatively coupled to and / or readable by a processor operatively coupled to the medium. Both volatile and non-volatile memory can be used to store program instructions or software. In one embodiment, a computer- or machine-accessible non-transitory medium (e.g., memory 2805) contains executable computer program instructions that, when executed by system controller 2820, cause the system to perform the operations or methods of this disclosure, including the measurement and detection of characteristics on soil and vegetation samples. While a machine-accessible and readable non-transitory medium (e.g., memory 2805) is shown as a single medium in exemplary embodiments, the term should be understood to include a single medium or multiple media (e.g., a centralized or distributed database, and / or associated caches and servers) storing one or more sets of control logic or instructions. The term "machine-accessible and readable non-transitory medium" should also be understood to include any medium capable of storing, encoding, or carrying a set of instructions executable by a machine and causing the machine to perform one or more methods of this disclosure. Accordingly, the term "machine-accessible and readable non-transitory medium" should also be considered to include, but is not limited to, solid-state memory, optical and magnetic media, and carrier signals.

[0042] Network interface 2815 is connected to the agricultural (e.g., soil or other) sample processing and analysis system (and associated devices) described in other parts of this document. Figure 2 The communication is between the unified designation 2803 and other systems or devices, which may include, but are not limited to, machines 2870 having their own controllers and devices.

[0043] The programmable controller 2820 may include one or more microprocessors, processors, system-on-a-chip (integrated circuits), one or more microcontrollers, or combinations thereof. The processing system includes processing logic 2826 for executing software instructions for one or more programs, and a communication module or unit 2828 (e.g., transmitter, transceiver) for transmitting and receiving communication information with a network interface 2815 and / or an agricultural sample processing and analysis system 2803, which includes a sample preparation subsystem 3002 and the components described herein. The communication unit 2828 may be integrated with the control system 2800 (e.g., controller 2820) or separate from the programmable processing system.

[0044] The programmable processing logic 2826 of the control system 2800 (which directs the operation of the system controller 2820, which includes one or more processors) can process communication information received from the communication unit 2828 or the network interface 2815, including agricultural data (e.g., detection data, detection results, GPS data, liquid application data, flow rate, etc.) and data generated by the soil sample processing and analysis system 2803. The memory 2805 of the control system 2800 is configured to store pre-programmed variables or setpoints / reference values, acquired data, and computer instructions or programs (e.g., software 2806) for execution, used to control the operation of the controller 2820. The memory 2805 may store, for example, software components such as detection software for analyzing soil and vegetation samples to perform the operations of this disclosure, or any other software applications or modules, images 2808 (e.g., captured crop images), alarms, maps, etc. System 2800 may also include an audio input / output subsystem (not shown), which may include a microphone and a speaker for, for example, receiving and sending voice commands or for user authentication or authorization (e.g., biometrics).

[0045] The system controller 2820 communicates bidirectionally with the memory 2805 via communication link 2830, bidirectionally with the network interface 2815 via communication link 2832, bidirectionally with the display device 2830 and an optional second display device 2825 via communication links 2834 and 2835, and bidirectionally with the I / O port 2829 via communication link 2836. The system controller 2820 can also communicate with the soil sample processing and analysis system 2803 via a wired / wireless communication link 5752, which is performed via the network interface 2815 and / or directly as shown in the figure.

[0046] Display devices 2825 and 2830 can provide a visual user interface for users or operators. The display devices may include a display controller. In one embodiment, display device 2825 is a portable tablet or computing device with a touchscreen that displays data (e.g., soil detection results, vegetation detection results, liquid application data, captured images, partial view map layers, high-resolution field maps (containing actual liquid application data, actual planting or harvest data, or other agricultural variables or parameters), yield maps, alarms, etc.) and data generated by agricultural data analysis software applications, and receives input from users or operators to display a breakdown map of the field area, monitor and control field operations. These operations may include machine or implement configuration, data reporting, control of machines or implements including sensors and controllers, and storage of generated data. Display device 2830 may be a display (e.g., a display provided by an original equipment manufacturer (OEM)) that displays images and data for displaying partial view map layers, actual liquid application data, actual planting or actual harvesting data, yield data, controlling machines (e.g., planters, tractors, combine harvesters, sprayers, etc.), operating machines, and monitoring machines or implements connected to said machines (e.g., seeders, combine harvesters, sprayers, etc.), wherein sensors and controllers are located on said machines or implements.

[0047] Agricultural sample slurry processing system

[0048] The following sections will describe various aspects of the previously described agricultural sample analysis system and associated apparatus, which process and analyze / measure prepared agricultural sample slurries to obtain analytes of interest (e.g., soil nutrients such as nitrogen, phosphorus, and potassium, vegetation, fertilizers, etc.). Specifically, the foregoing relates to... Figure 1 The sample preparation subsystem 3002 and chemical analysis subsystem 3003 of the agricultural (e.g., soil or other) sampling system 3000 shown are included. To provide a broad background for the discussion of alternative devices and equipment below, Figure 3 This is a high-level system diagram summarizing the process flow sequence of an agricultural sample analysis system. This example illustrates static slurry batch density measurement, which will be described further herein.

[0049] Now for reference Figure 3The agricultural sample analysis system 7000 comprises, in sequence along the flow path, an agricultural sample preparation subsystem 7001, a mixing chamber and density measurement subsystem 7002, a fine filtration subsystem 7003, an analyte extraction subsystem 7004, an ultrafine filtration subsystem 7005, and an analyte measurement subsystem 7006. The soil sample preparation subsystem 7001 represents the initial portion of the system for preparing the sample slurry. Therefore, subsystem 7001 may include the mixing device described herein, which includes a sample preparation chamber 7100 and a coarse filter 7146 described herein. In the sample preparation chamber, water is added to a lumpy agricultural sample (e.g., soil or other agricultural solids) to prepare a slurry. The coarse filter removes larger or oversized particles (e.g., small stones, rocks, debris, hardened clumps of agricultural solids, etc.) from the prepared soil slurry. Furthermore, the coarse filter 7146 is sized to allow the desired maximum particle size in the slurry to pass through, ensuring a uniform flow rate and density of the slurry for weight / density measurements in the process, which will be further described herein. The prepared and coarsely filtered slurry can be transferred from the mixing device to the stirring chamber and density measurement subsystem 7002 by gravity. In other embodiments, the prepared and coarsely filtered slurry can be pumped by slurry pump 7081 or alternatively transferred to the stirring chamber pneumatically, in which pneumatic transfer is achieved using a pressurized air source 7082 (in... Figure 3 The pressurized air supplied by the fluid connection (shown by dashed lines) pressurizes the flow channel between the sample preparation chamber 7100 and the density measurement subsystem 7002.

[0050] Water is added to the sample preparation chamber 7100 via water control valve 7091. The solids to be sampled are also added to the sample preparation chamber 7100. Water and solids can be mixed within the sample preparation chamber 7100. Excess water and particles filtered out by coarse filter 7146 leave the sample preparation subsystem 7001 as waste slurry. A mixing chamber and density measurement subsystem 7002 may include a mixing chamber and a density measurement system configured to measure the density of the slurry. During processing within the mixing chamber and density measurement subsystem 7002, additional waste slurry is generated. The slurry then passes through a fine filter, which is part of a fine filtration subsystem 7003. Excess slurry and water, as well as particles that do not pass through the fine filtration subsystem 7003, are also generated as waste slurry. This waste slurry is directed to the waste treatment system 1000.

[0051] The slurry from the fine filtration subsystem 7003 is conveyed via slurry conduit 7088 to the analyte extraction subsystem 7004. Extractant, standard substances, and water can be added to the analyte extraction subsystem 7004, generating waste containing the added chemicals. The slurry and extractant are then fed to the ultrafine filter of the ultrafine filtration subsystem 7005, where additional waste is generated due to the addition of water to rinse the ultrafine filter. Finally, the filtrate from the ultrafine filtration subsystem 7005 is fed to the analyte and measurement subsystem 7006. Additional water and indicators can be added at the analyte and measurement subsystem 7006, generating additional waste. The waste from the analyte extraction subsystem 7004, ultrafine filtration subsystem 7005, and analyte and measurement subsystem 7006 may contain added chemical reagents and are therefore treated by a separate waste treatment system.

[0052] It is worth noting that, Figure 3 The order of the devices and equipment shown (e.g., pumps (multiple pumps), valves, etc.) can be rearranged and repositioned within the system without affecting the functionality of the units. Furthermore, additional devices and equipment, such as valves, pumps, other flow devices, and sensors (e.g., pressure, temperature sensors), can be added to control fluid / slurry flow and transmit additional operational information to a system controller that can control the operation of the system shown. Therefore, the system is not limited to the configuration and devices / equipment shown.

[0053] Waste treatment system

[0054] The waste slurry received by the waste treatment system 1000 will be discussed in more detail below. (Still refer to...) Figure 3 The waste treatment system 1000 receives waste slurry from the sample preparation subsystem 7001, the mixing chamber and density measurement subsystem 7002, and the fine filtration subsystem 7003. Other waste sources can also be directed to the waste treatment system 1000, provided that such waste is suitable for discharge into the surrounding environment. This waste slurry can be a mixture of solids and liquids (such as soil and water) as described above. The waste slurry can contain rocks, vegetation material, and other debris of various sizes.

[0055] The waste slurry is first directed to a storage tank 100. The storage tank 100 stores the waste slurry, which is then transferred through a check valve assembly 200 to a settling volume 300. Once in the settling volume 300, the solids settle within it, while excess liquid is allowed to be discharged into the surrounding environment. The surrounding environment can be a field or other outdoor location. The solids within the settling volume 300 can be disposed of at a later time by returning them to a field, fertilizer pit, or other safe disposal site. The waste slurry received by the waste treatment system 1000 does not contain any added chemicals and therefore can be returned to the environment without any risk of pollution or contamination.

[0056] Figure 4 Example descriptions can be used Figure 3 This is one embodiment of a waste disposal system 1000 within a system. Specifically, waste slurry is directed to an inlet 104 of a storage tank 100. The waste slurry is contained in a reservoir 110 within the storage tank 100. A level sensor 102 can be used to monitor the level of the waste slurry within the reservoir 110 of the storage tank 100. The level sensor 102 can be a conductivity sensor, a vibration sensor, a float sensor, or any other device for detecting the level of the waste slurry within the storage tank 100. The level sensor 102 can be configured to detect when the waste slurry exceeds a specific level or can be configured to monitor the continuous level of the waste slurry, which is expressed as a percentage, an analog value, or any other way of indicating the level with more fine detail than simply empty or full.

[0057] When the waste slurry in the reservoir 110 of the storage tank 100 exceeds a set point, the pump 108 is activated to transfer the waste slurry from the outlet 106 of the storage tank 100 to the settling volume 300. The waste slurry is transferred through a check valve assembly 200, which prevents the waste slurry from flowing back into the reservoir 110 of the storage tank 100. Once past the check valve assembly 200, the waste slurry flows through the inlet 302 into the settling volume 300 and is stored in the settling reservoir 310. In the settling reservoir 310, the waste slurry settles, with solids separating and settling within the settling volume 300. The liquid separates from the solids within the settling volume 300. The liquid portion of the waste slurry generally has a lower density than the solids and tends to remain at the top of the settling reservoir 310. The liquid portion of the waste slurry exits via the discharge device 304. The settling volume 300 may include various filters, or may utilize a cyclone filtration mechanism to separate the solids from the liquid portion of the waste slurry. The settling volume 300 will be described in further detail below.

[0058] The check valve assembly 200 can take many forms. In one embodiment, the check valve assembly 200 can simply be a conventional check valve. Such a check valve can include an orifice and a closing member, such as a ball. These check valves can also utilize a sliding gate as the closing member, or any other known design. The closing member can include a spring or other means to bias the closing member against the orifice, thereby preventing backflow. If a conventional check valve is used in the check valve assembly 200, the size of the check valve must be properly set to prevent solids from settling within the check valve, which would impede the operation of the check valve assembly 200 and allow backflow of waste slurry. This can be achieved by ensuring that the velocity of the waste slurry through the check valve assembly 200 is sufficient to prevent settling. Therefore, the check valve is sized such that the velocity through the check valve is greater than the velocity through adjacent portions of the flow path upstream and downstream of the check valve assembly 200. In other embodiments, the dimensions of the check valve and adjacent pipeline can be configured such that they have a minimum diameter to achieve the desired flow rate, thereby ensuring the maximum flow velocity through the check valve assembly 200.

[0059] The check valve assembly 200 ensures that waste slurry does not flow backward into the storage tank 100. The physical height of the settling volume 300 may be higher than that of the storage tank 100, which could lead to backflow in the event of a power outage in the waste treatment system 1000. For example, if a power outage occurs and the storage tank 100 is full of waste, the waste could flow back into one of the upstream subsystems and negatively impact analytical results, or cause another system to overflow, resulting in leaks or other undesirable situations. Therefore, a reliable fail-safe system is needed to ensure that the storage tank 100 is not flooded by waste slurry from the settling volume 300.

[0060] Check valve assembly 200 can also be like Figure 5 The example shown illustrates the implementation method. In this embodiment of the check valve assembly 200, the check valve assembly 200 utilizes a pinch valve 210 to control the flow of waste slurry. Therefore, the pinch valve 210 selectively allows slurry to pass through. The pinch valve 210 has an inlet 212 and an outlet 214. The pinch valve 210 is a normally open valve operated pneumatically. Therefore, when compressed air or another compressed fluid is applied to the operating port 216 of the pinch valve 210, the pinch valve 210 transitions to a closed state. When the compressed air or compressed fluid is removed from the operating port 216 and the pressure at the operating port 216 returns to ambient pressure, the pinch valve 210 transitions to an open state. In the open state, fluid is allowed to pass through the pinch valve 210, while in the closed state, fluid is prevented from passing through the pinch valve 210.

[0061] The check valve assembly 200 also includes a pneumatic valve 208, which is a three-port bidirectional solenoid valve. The pneumatic valve 208 can selectively apply compressed air or compressed fluid to the operating port 216 of the pinch valve 210, or fluidly connect the operating port 216 to the atmosphere via a vent 209. The vent 209 is fluidly connected to one of the ports of the pneumatic valve 208, and is in fluid communication with the atmosphere to achieve pressure equalization between the atmosphere and the operating port 216.

[0062] Reservoir 206 stores compressed fluid (such as compressed air) and is fluidly connected to pneumatic valve 208. Air supply source 202 delivers compressed air to reservoir 206, which then passes through check valve 204. In an alternative embodiment, another compressed fluid may be supplied to reservoir 206. Check valve 204 prevents backflow in the event of a power failure. Therefore, in the event of a power failure, pneumatic valve 208 pressurizes either compressed air or another compressed fluid from reservoir 206 via operating port 216 to clamp valve 210, thereby causing clamp valve 210 to block the flow of waste slurry.

[0063] Pneumatic valve 208 is a normally open valve, allowing reservoir 206 to be fluidly connected to operating port 216 when pneumatic valve 208 is de-energized. When power is supplied, pneumatic valve 208 closes, isolating reservoir 206 from operating port 216. When pneumatic valve 208 is energized, vent 209 of pneumatic valve 208 is fluidly connected to operating port 216. Therefore, check valve assembly 200 functions as a fail-safe normally closed check valve. The pressure at operating port 216 is maintained by reservoir 206 for a sufficient time to restore power, operate pump 108 (if necessary), and refill reservoir 206 before waste slurry is discharged back into tank 100. When combined with the other components described above, normally open pinch valve 210 effectively functions as a normally closed valve. Therefore, normally open pinch valve 210 functions as a normally closed check valve during periods of power loss or between pump 108 operations.

[0064] Therefore, the check valve assembly 200 can transition from a first state to a second state. In the first state, the pneumatic valve 208 prevents the application of compressed air or compressed fluid from the reservoir 206 to the operating port 216 of the pinch valve 210. In the second state, the pneumatic valve 208 applies compressed air or compressed fluid from the reservoir 206 to the operating port 216 of the pinch valve 210. In the first state, the pinch valve 210 is open, allowing waste slurry to pass through. In the second state, the pinch valve 210 is closed, preventing waste slurry from passing through.

[0065] In one method of treating waste slurry, waste slurry is received in a reservoir 110 of a storage tank 100 via inlet 104. When a level setpoint detected by level sensor 102 is reached, pump 108 is activated to transfer the waste slurry from reservoir 110 via outlet 106. Check valve assembly 200 can be switched to a first state to allow waste slurry to pass through by discharging compressed air or compressed fluid through vent 209 of pneumatic valve 208 to release pressure on pinch valve 110. In other configurations, check valve assembly 200 may be switched to the first state due to the presence of waste slurry delivered by pump 108.

[0066] Waste slurry passes through check valve assembly 200 and is conveyed via inlet 302 to settling reservoir 310 of settling volume 300. While in settling reservoir 310 of settling volume 300, waste slurry separates into solid and liquid components. When pump 108 delivers new waste slurry, the liquid component is allowed to exit via discharge device 304, thereby displacing the liquid component of the waste slurry. After pump 108 transfers the waste slurry, check valve assembly 200 transitions from a first state to a second state, thereby preventing the passage of waste slurry 200. The operation and shutdown of pump 108 can occur simultaneously with the transition of check valve assembly 200 to and from the first state. In other embodiments, pump 108 can operate before or after check valve assembly 200 transitions to the first state, and pump 108 can be stopped before or after check valve assembly 200 transitions to the second state. In other embodiments, pump 108 can be started and stopped, but check valve assembly 200 can remain in the first state until the power to waste treatment system 1000 is removed.

[0067] In the event of an electrical failure in which pump 108 unexpectedly stops, as described above, the check valve assembly 200 is simultaneously switched to the second state by removing power to the pneumatic valve 208. This ensures that even when the settling volume 300 is at a height higher than the storage tank 100, no waste slurry returns to the storage container 110 of the storage tank 100, thereby preventing the storage tank 100 from flooding and preventing the potential return of waste slurry to other subsystems.

[0068] Go to Figure 6This example illustrates another embodiment of the waste treatment system 1100. Unless otherwise stated, the waste treatment system 1100 is identical to the waste treatment system 1000 and may implement any form of check valve assembly 200 as described above. However, in some embodiments, as discussed below, the check valve assembly 200 may be omitted. Unless otherwise stated, the waste treatment system 1100 uses the same reference numerals. Specifically, waste slurry is directed to the inlet 104 of the storage tank 100. The waste slurry is contained within a reservoir 110 within the storage tank 100. A level sensor 102 can be used to monitor the level of the waste slurry within the reservoir 110 of the storage tank 100. The level sensor 102 may be a conductivity sensor, a vibration sensor, a float sensor, or any other device for detecting the level of the waste slurry within the storage tank 100. The level sensor 102 can be configured to detect when the waste slurry exceeds a specific level or can be configured to monitor the continuous level of the waste slurry, which is expressed as a percentage, an analog value, or any other way of indicating the level with more fine detail than simply empty or full.

[0069] When the waste slurry in the reservoir 110 of the storage tank 100 exceeds a set point, the pump 108 is activated to transfer the waste slurry from the outlet 106 of the storage tank 100 to the settling volume 300. The waste slurry is transferred through a check valve assembly 200, which prevents the waste slurry from flowing back into the reservoir 110 of the storage tank 100. Once past the check valve assembly 200, the waste slurry flows into the storage volume 400, which has an inlet 402 fluidly connected to the check valve assembly and an outlet 404 fluidly connected to the settling volume 300. The storage volume 400 also includes a vent 406 fluidly connected to the atmosphere. When the pump 108 is running, the storage volume 400 is sufficient to receive the waste slurry without any leakage from the vent 406. The combination of the storage volume 400 and the vent 406 provides an air barrier and prevents waste slurry from being siphoned back from the settling volume 300 into the tank 100. Preferably, the storage volume 400 is located above the tank 100 and the settling volume 300, with the inlet 402 located near the outlet 404. In other embodiments where the piping between the tank 100 and the storage volume 400 is sufficiently short, the check valve assembly 200 can be omitted.

[0070] Settling volume 300 receives waste slurry from storage volume 400 outlet 404 via inlet 302 and stores it within settling reservoir 310. Within settling reservoir 310, the waste slurry settles, with solids separating and settling within settling volume 300. Liquids separate from solids within settling volume 300. The liquid portion of the waste slurry typically has a lower density than the solids and tends to remain at the top of settling reservoir 310. The liquid portion of the waste slurry exits via discharge device 304. Settling volume 300 may include various filters, or it may utilize a cyclone filtration mechanism to separate solids from the liquid portion of the waste slurry.

[0071] The check valve assembly 200 can take many forms. In one embodiment, the check valve assembly 200 can simply be a conventional check valve. Such a check valve can include an orifice and a closing member, such as a ball. These check valves can also utilize a sliding gate as the closing member, or any other known design. The closing member can include a spring or other means to bias the closing member against the orifice, thereby preventing backflow. If a conventional check valve is used in the check valve assembly 200, the size of the check valve must be properly set to prevent solids from settling within the check valve, which would impede the operation of the check valve assembly 200 and allow waste slurry to flow backward. This can be achieved by ensuring that the velocity of the waste slurry through the check valve assembly 200 is sufficient to prevent settling. Therefore, the check valve is sized such that the velocity through the check valve is greater than the velocity through adjacent portions of the flow path upstream and downstream of the check valve assembly 200.

[0072] The check valve assembly 200 ensures that waste slurry does not flow backward into the storage tank 100. The physical height of the settling volume 300 may be higher than that of the storage tank 100, which could lead to backflow in the event of a power outage in the waste treatment system 1000. For example, if power is interrupted and the storage tank 100 is full of waste, the waste could flow back into one of the upstream subsystems and negatively impact analytical results. Therefore, a reliable fail-safe system is needed to ensure that the storage tank 100 is not flooded by waste slurry from the settling volume 300.

[0073] Go to Figure 7The settling volume 300 is illustrated in more detail below. As described above, the settling volume 300 has an inlet 302 fluidly connected to a settling reservoir 310. The inlet 302 guides waste slurry downward toward the bottom of the settling reservoir 310 to facilitate the settling of solids 105 from the liquid portion 103. Solids 105 accumulate at the bottom of the settling reservoir 310 of the settling volume 300. The waste slurry fills the settling reservoir 310, wherein a discharge device extends below the water level of the liquid portion 103 to ensure that no floating debris is allowed to leave the settling volume 300. Only the liquid portion 103 is allowed to exit through the discharge device 304, wherein solids 105 and any floating debris remain within the settling reservoir 310 for subsequent removal. The exemplified settling volume 300 can be integrated into any of the aforementioned waste treatment systems 1000 and 1100.

[0074] In an optional configuration, solids 105 can be further separated by using a flocculant. This can be achieved by periodically adding flocculant to the settling volume 300, storage tank 100, or other components within the waste treatment system 1000. The flocculant can be added manually or automatically and can be in liquid or solid form, comprising slow-release capsules or other known technologies. In other embodiments, the flocculant can be added to a container downstream of the discharge device 304 of the settling volume 300 to reduce the amount of flocculant required. In still other embodiments, a sludge filter or other filter can be installed on the discharge device 304 to further filter the liquid portion 103.

[0075] Example

[0076] The following are non-restrictive examples.

[0077] Example 1 - A waste treatment system includes: a storage tank including a reservoir, an inlet, and an outlet, the inlet and the outlet being fluidly connected to the reservoir, the storage tank being configured to receive slurry at the inlet; a check valve assembly fluidly connected to the outlet of the storage tank, the check valve assembly being configured to selectively allow the slurry to pass through; and a settling volume including a settling reservoir, an inlet, and a discharge device, the inlet and the discharge device being fluidly connected to the settling reservoir, the inlet being fluidly connected to the check valve assembly.

[0078] Example 2 - The waste treatment system according to Example 1, wherein the check valve assembly includes a pinch valve.

[0079] Example 3 - The waste treatment system according to Example 2, wherein the pinch valve is a pneumatically operated pinch valve.

[0080] Example 4 - A waste treatment system according to Example 2 or Example 3, wherein the pinch valve is normally open.

[0081] Example 5 - A waste treatment system according to any one of Examples 1 to 4, wherein the check valve assembly includes a valve and a reservoir containing compressed fluid, the compressed fluid in the reservoir being configured to close the valve of the check valve assembly.

[0082] Example 6 - A waste treatment system according to any one of Examples 1 to 5, wherein the check valve assembly is configured to transition from a first state in which the check valve assembly allows the slurry to pass through to a second state in which the check valve assembly blocks the slurry from passing through.

[0083] Example 7 - A waste treatment system according to any one of Examples 1 to 6, wherein the check valve assembly further comprises: a first valve configured to selectively allow the slurry to pass through; a reservoir operatively coupled to the valve, the reservoir containing compressed fluid; and a second valve positioned between the first valve and the reservoir, the second valve being configured to open and close the first valve by selectively applying compressed fluid from the reservoir.

[0084] Example 8 - A waste treatment system according to Example 7, wherein, in a first state, the second valve prevents the compressed fluid from being applied to the first valve, thereby allowing the slurry to pass through.

[0085] Example 9 - A waste treatment system according to Example 7 or Example 8, wherein, in a second state, the second valve applies the compressed fluid to the first valve, thereby causing the first valve to prevent the slurry from passing through.

[0086] Example 10 - A waste treatment system according to any one of Examples 7 to 9, wherein the second valve is a normally open valve.

[0087] Example 11 - A waste treatment system according to any one of Examples 1 to 10 further includes a storage volume fluidly connected between the check valve assembly and the settling volume, the storage volume including a vent fluidly connected to the atmosphere.

[0088] Example 12 - A waste treatment system according to any one of Examples 1 to 11, wherein a flocculant is dispensed into the settling reservoir.

[0089] Example 13 - A waste treatment system comprising: a storage tank including a reservoir, an inlet, and an outlet, the inlet and the outlet being fluidly connected to the reservoir, the storage tank being configured to receive slurry at the inlet; a check valve assembly fluidly connected to the outlet of the storage tank, the check valve assembly including a pinch valve configured to selectively allow the slurry to pass through the pinch valve; and a settling volume including a settling reservoir, an inlet, and a discharge device, the inlet and the discharge device being fluidly connected to the settling reservoir, the inlet being fluidly connected to the check valve assembly.

[0090] Example 14 - A waste treatment system according to Example 13, wherein the pinch valve is a pneumatically operated pinch valve.

[0091] Example 15 - A waste treatment system according to Example 13 or Example 14, wherein the pinch valve is normally open.

[0092] Example 16 - A waste treatment system according to any one of Examples 13 to 15, wherein the check valve assembly includes a reservoir containing compressed fluid, the compressed fluid in the reservoir being configured to close a pinch valve of the check valve assembly.

[0093] Example 17 - A waste treatment system according to any one of Examples 13 to 16, wherein the check valve assembly is configured to transition from a first state in which the check valve assembly allows the slurry to pass through to a second state in which the check valve assembly blocks the slurry from passing through.

[0094] Example 18 - A waste treatment system according to any one of Examples 13 to 17, wherein the check valve assembly further includes: a reservoir operably coupled to the valve, the reservoir containing compressed fluid; and a compressed fluid valve positioned between the pinch valve and the reservoir, the compressed fluid valve being configured to open and close the pinch valve by selectively applying compressed fluid from the reservoir.

[0095] Example 19 - A waste treatment system according to Example 18, wherein, in a first state, the compressed fluid valve prevents the compressed fluid from being applied to the pinch valve, thereby allowing the pinch valve to allow the slurry to pass through.

[0096] Example 20 - A waste treatment system according to Example 18 or Example 19, wherein, in a second state, the compressed fluid valve applies the compressed fluid to the pinch valve, thereby causing the pinch valve to prevent the slurry from passing through.

[0097] Example 21 - A waste treatment system according to any one of Examples 18 to 20, wherein the compressed fluid valve is a normally open valve.

[0098] Example 22 - A waste treatment system according to any one of Examples 13 to 21 further includes a storage volume fluidly connected between the check valve assembly and the settling volume, the storage volume including a vent fluidly connected to the atmosphere.

[0099] Example 23 - A waste treatment system according to any one of Examples 13 to 22, wherein a flocculant is dispensed into the settling reservoir.

[0100] Example 24 - A method for treating waste includes: a) receiving waste slurry into a reservoir of a storage tank; b) transferring the waste slurry from the reservoir of the storage tank to a settling volume; and c) closing a valve to prevent the waste slurry from flowing back from the settling volume to the reservoir.

[0101] Example 25 - The method according to Example 24, wherein step a) further includes pumping the waste slurry using a pump.

[0102] Example 26 - The method according to Example 24 or Example 25, wherein step b) further includes allowing the waste slurry to flow through the valve.

[0103] Example 27 - The method according to any one of Examples 24 to 26, wherein, in step b), the valve is in a first state, wherein the valve allows the waste slurry to pass through.

[0104] Example 28 - The method according to any one of Examples 24 to 27, wherein, in step c), the valve is switched to a second state, wherein the valve prevents the waste slurry from passing through.

[0105] Example 29 - A waste treatment system includes: a storage tank including a reservoir, an inlet, and an outlet, the inlet and the outlet being fluidly connected to the reservoir, the storage tank being configured to receive slurry at the inlet; a storage volume fluidly connected to the outlet of the storage tank, the storage volume including a vent fluidly connected to the atmosphere; and a settling volume including a settling reservoir, an inlet, and a discharge device, the inlet and the discharge device being fluidly connected to the settling reservoir, the inlet being fluidly connected to the storage volume.

[0106] Example 30 - A waste treatment system according to Example 29, wherein the storage volume is located above the settling volume and the storage tank.

[0107] Example 31 - The waste treatment system according to Example 29 or Example 30 further includes a check valve assembly fluidly connected between the tank and the storage volume.

[0108] Example 32 - A waste treatment system according to Example 31, wherein the check valve assembly includes a reservoir containing compressed fluid, the compressed fluid in the reservoir being configured to close a pinch valve of the check valve assembly.

[0109] Example 33 - A waste treatment system according to Example 31 or Example 32, wherein the check valve assembly is configured to transition from a first state in which the check valve assembly allows the slurry to pass through to a second state in which the check valve assembly blocks the slurry from passing through.

[0110] Example 34 - A waste treatment system according to any one of Examples 31 to 33, wherein the check valve assembly further includes: a reservoir operably coupled to the valve, the reservoir containing compressed fluid; and a compressed fluid valve positioned between the pinch valve and the reservoir, the compressed fluid valve being configured to open and close the pinch valve by selectively applying compressed fluid from the reservoir.

[0111] Example 35 - A waste treatment system according to Example 34, wherein, in a first state, the compressed fluid valve prevents the compressed fluid from being applied to the pinch valve, thereby allowing the pinch valve to allow the slurry to pass through.

[0112] Example 36 - A waste treatment system according to Example 34 or Example 35, wherein, in a second state, the compressed fluid valve applies the compressed fluid to the pinch valve, thereby causing the pinch valve to prevent the slurry from passing through.

[0113] Example 37 - A waste treatment system according to any one of Examples 34 to 36, wherein the compressed fluid valve is a normally open valve.

[0114] Example 38 - A waste treatment system according to any one of Examples 29 to 37, wherein the storage volume is located above the storage tank and the settling volume.

[0115] Example 39 - A waste treatment system according to any one of Examples 29 to 38, wherein the inlet of the storage volume is located above the outlet of the storage volume, and the vent of the storage volume is located above both the inlet and outlet of the storage volume.

[0116] Example 40 - A waste treatment system according to any one of Examples 29 to 39, wherein a flocculant is dispensed into the settling reservoir.

[0117] While the foregoing description and figures represent some example systems, it should be understood that various additions, modifications, and substitutions can be made thereto without departing from the spirit, scope, and equivalents of the appended claims. In particular, those skilled in the art will appreciate that the invention can be implemented in other forms, structures, arrangements, proportions, dimensions, and other elements, materials, and components without departing from the spirit or essential characteristics of the invention. Furthermore, various modifications can be made to the methods / processes described herein. Those skilled in the art will further understand that the invention can be used with many modifications to the structures, arrangements, proportions, dimensions, materials, and components used in the practice of the invention (modifications particularly suited to specific environmental and operational requirements) without departing from the principles of the invention. Therefore, the embodiments currently disclosed should be considered illustrative rather than restrictive in all respects, and the scope of the invention is defined by the appended claims and their equivalents, and is not limited to the foregoing description or embodiments. Rather, the appended claims should be interpreted broadly to include other variations and embodiments of the invention that can be made by those skilled in the art without departing from the scope and equivalents of the invention.

Claims

1. A waste treatment system comprising a storage tank, the storage tank including a reservoir, an inlet and an outlet, the inlet and outlet being fluidly connected to the reservoir, the storage tank being configured to receive slurry at the inlet; A check valve assembly, fluidly connected to the outlet of the reservoir, the check valve assembly being configured to selectively allow the slurry to pass through; as well as A settling volume comprising a settling reservoir, an inlet and a discharge device, wherein the inlet and discharge device of the settling reservoir are fluidly connected to the settling reservoir, and the inlet of the settling reservoir is fluidly connected to the check valve assembly.

2. The waste treatment system according to claim 1, wherein, The check valve assembly includes a pinch valve.

3. The waste treatment system according to claim 2, wherein, The clamp valve is a pneumatically operated clamp valve.

4. The waste treatment system according to claim 2 or 3, wherein, The pinch valve is normally open.

5. The waste treatment system according to any one of claims 1 to 4, wherein, The check valve assembly includes a valve and a reservoir containing compressed fluid, the compressed fluid in the reservoir of the check valve assembly being configured to close the valve of the check valve assembly.

6. The waste treatment system according to any one of claims 1 to 5, wherein, The check valve assembly is configured to transition from a first state in which the check valve assembly allows the slurry to pass through to a second state in which the check valve assembly blocks the slurry from passing through.

7. The waste treatment system according to any one of claims 1 to 6, wherein, The check valve assembly also includes: A first valve, configured to selectively allow the slurry to pass through; A reservoir operably connected to the valve, the reservoir of the check valve assembly containing compressed fluid; and A second valve is located between the first valve and the reservoir of the check valve assembly, the second valve being configured to open and close the first valve by selectively applying compressed fluid from the reservoir of the check valve assembly.

8. The waste treatment system according to claim 7, wherein, In the first state, the second valve prevents the compressed fluid from being applied to the first valve, thereby allowing the slurry to pass through.

9. The waste treatment system according to claim 7 or claim 8, wherein, In the second state, the second valve applies the compressed fluid to the first valve, thereby causing the first valve to prevent the slurry from passing through.

10. The waste treatment system according to any one of claims 7 to 9, wherein, The second valve is a normally open valve.

11. The waste treatment system according to any one of claims 1 to 10, further comprising a storage volume fluidly connected between the check valve assembly and the settling volume, the storage volume including a vent fluidly connected to the atmosphere.

12. The waste treatment system according to any one of claims 1 to 11, wherein, The flocculant is dispensed into the settling reservoir.

13. A waste treatment system, comprising: A storage tank, comprising a reservoir, an inlet, and an outlet, the inlet and the outlet being fluidly connected to the reservoir, the storage tank being configured to receive slurry at the inlet; A check valve assembly fluidly connected to the outlet of the reservoir, the check valve assembly including a pinch valve configured to selectively allow the slurry to pass through the pinch valve; as well as A settling volume comprising a settling reservoir, an inlet and a discharge device, wherein the inlet and discharge device of the settling volume are fluidly connected to the settling reservoir, and the inlet of the settling volume is fluidly connected to the check valve assembly.

14. The waste treatment system according to claim 13, wherein, The clamp valve is a pneumatically operated clamp valve.

15. The waste treatment system according to claim 13 or 14, wherein, The pinch valve is normally open.

16. The waste treatment system according to any one of claims 13 to 15, wherein, The check valve assembly includes a reservoir containing compressed fluid, the compressed fluid in the reservoir of the check valve assembly being configured to close the pinch valve of the check valve assembly.

17. The waste treatment system according to any one of claims 13 to 16, wherein, The check valve assembly is configured to transition from a first state in which the check valve assembly allows the slurry to pass through to a second state in which the check valve assembly blocks the slurry from passing through.

18. The waste treatment system according to any one of claims 13 to 17, wherein, The check valve assembly also includes: A reservoir operably connected to the valve, the reservoir containing compressed fluid; and A compressed fluid valve positioned between the pinch valve and the reservoir is configured to open and close the pinch valve by selectively applying compressed fluid from the reservoir.

19. The waste treatment system according to claim 18, wherein, In the first state, the compressed fluid valve prevents the compressed fluid from being applied to the pinch valve, thereby allowing the pinch valve to allow the slurry to pass through.

20. The waste treatment system according to claim 18 or 19, wherein, In the second state, the compressed fluid valve applies the compressed fluid to the pinch valve, thereby causing the pinch valve to prevent the slurry from passing through.

21. The waste treatment system according to any one of claims 18 to 20, wherein, The compressed fluid valve is a normally open valve.

22. The waste treatment system according to any one of claims 13 to 21, further comprising a storage volume fluidly connected between the check valve assembly and the settling volume, the storage volume including a vent fluidly connected to the atmosphere.

23. The waste treatment system according to any one of claims 13 to 22, wherein, The flocculant is dispensed into the settling reservoir.

24. A method for treating waste, the method comprising: a) Receive waste slurry into the storage container of the storage tank; b) Transferring the waste slurry from the storage container of the storage tank to a settling volume; as well as c) Close the valve to prevent the waste slurry from flowing back from the settling volume to the storage tank.

25. The method according to claim 24, wherein, Step a) also includes pumping the waste slurry using a pump.

26. The method of claim 24 according to claim 25, wherein, Step b) also includes allowing the waste slurry to flow through the valve.

27. The method according to any one of claims 24 to 26, wherein, In step b), the valve is in a first state, wherein the valve allows the waste slurry to pass through.

28. The method according to any one of claims 24 to 27, wherein, In step c), the valve is switched to a second state, wherein the valve prevents the waste slurry from passing through.

29. A waste treatment system, comprising: A storage tank, comprising a reservoir, an inlet, and an outlet, the inlet and the outlet being fluidly connected to the reservoir, the storage tank being configured to receive slurry at the inlet; A storage volume fluidly connected to the outlet of the storage tank, the storage volume including a vent fluidly connected to the atmosphere; as well as A settling volume comprising a settling reservoir, an inlet, and a discharge device, wherein the inlet and discharge device of the settling volume are fluidly connected to the settling reservoir, and the inlet of the settling volume is fluidly connected to the storage volume.

30. The waste treatment system according to claim 29, wherein, The storage volume is located above the settling volume and the storage tank.

31. The waste treatment system of claim 29 or 30 further includes a check valve assembly fluidly connected between the storage tank and the storage volume.

32. The waste treatment system according to claim 31, wherein, The check valve assembly includes a reservoir containing compressed fluid, the compressed fluid in the reservoir being configured to close the pinch valve of the check valve assembly.

33. The waste treatment system according to claim 31 or 32, wherein, The check valve assembly is configured to transition from a first state in which the check valve assembly allows the slurry to pass through to a second state in which the check valve assembly blocks the slurry from passing through.

34. The waste treatment system according to any one of claims 31 to 33, wherein, The check valve assembly also includes: A reservoir operably connected to the valve, the reservoir containing compressed fluid; and A compressed fluid valve positioned between the pinch valve and the reservoir is configured to open and close the pinch valve by selectively applying compressed fluid from the reservoir.

35. The waste treatment system according to claim 34, wherein, In the first state, the compressed fluid valve prevents the compressed fluid from being applied to the pinch valve, thereby allowing the pinch valve to allow the slurry to pass through.

36. The waste treatment system according to claim 34 or 35, wherein, In the second state, the compressed fluid valve applies the compressed fluid to the pinch valve, thereby causing the pinch valve to prevent the slurry from passing through.

37. The waste treatment system according to any one of claims 34 to 36, wherein, The compressed fluid valve is a normally open valve.

38. The waste treatment system according to any one of claims 29 to 37, wherein, The storage volume is located above the storage tank and the settling volume.

39. The waste treatment system according to any one of claims 29 to 38, wherein, The inlet of the storage volume is located above the outlet of the storage volume, and the vent of the storage volume is located above both the inlet and outlet of the storage volume.

40. The waste treatment system according to any one of claims 29 to 39, wherein, The flocculant is dispensed into the settling reservoir.

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