Sustainable system for treating wastewater for human consumption by means of a microbial digester medium

Abstract

The present invention relates to a sustainable chemical-free system for treating wastewater for human consumption by means of a microbial digester medium, comprising: a first reservoir tank for containing a wastewater effluent; second and third aerobic and anaerobic process tanks configured to be filled to 70% of their capacity with wastewater; and a control means configured to send a signal to generate a recirculation cycle between the second and third tanks, the filling of said tanks being stopped in order to pause the treatment process for 20 hours. Said second tank comprises the microbial digester medium formed by a tube or cylinder containing beneficial microbes, and said beneficial microbes carry out an aerobic-anaerobic microbial remediation process in the wastewater circulating between the second and third tanks during the first 7 to 9 hours. The system also comprises a filtration assembly configured to remove suspended solids and settleable solids in the water, humic and fulvic acids, various volatile organic compounds, some fats and some proteins, and some agrochemicals, and to eliminate odour and colour in the water. The system further comprises a second polishing filter; a third filter for tertiary treatments; a fourth disinfection tank configured to disinfect the filtered water by injecting ozone using an ozone generator; and a fifth open holding tank or reservoir comprising a magnetic and ultrasonic preservation system that emits sound waves at different frequencies and a magnetic field for controlling minerals in the water and preventing blue-green algae growth.

Description

[0001] SUSTAINABLE WASTEWATER TREATMENT SYSTEM FOR HUMAN CONSUMPTION THROUGH A MICROBIAL DIGESTER MEDIUM

[0002] TECHNICAL FIELD

[0003] The present invention is directed to the industrial sector of wastewater treatment systems. Specifically, the invention relates to a sustainable wastewater treatment system using a chemical-free microbial digester medium, which removes solids, viruses, bacteria, and contaminants from wastewater for reuse in human consumption. It eliminates unpleasant odors associated with the handling of solids and sludge, avoids the use of chemicals harmful to humans and the environment such as flocculants, chlorine, and clarifiers, preserves the physicochemical qualities of the water by not altering the H2O molecule, and eliminates the need for post-treatment and the handling of remaining solids.

[0004] BACKGROUND OF THE INVENTION

[0005] As is well known in the state of the art, conventional wastewater treatment processes are highly polluting and inefficient. In addition to being very expensive, they produce foul odors, can leave polluting and harmful residues in the treated water, deprive the water of its natural properties and nutrients, require large-scale industrial civil works, generate high operating and maintenance costs, require constant refills of consumables, are frequently overwhelmed, and their discharges into rivers, seas, and other bodies of water pose a threat to environmental health.

[0006] Furthermore, these conventional wastewater treatment plants carry out physical, chemical, and biological treatments ranging from screening and crushing of solids, flocculation (a chemical process for the separation and sedimentation of solids), coagulation, chlorination, sludge dewatering, thermal drying of solids, and wet solids treatment, among other inconvenient and costly processes; they apply chemical substances to break down fecal solids, fats, oils, and various contaminants in the wastewater; they produce foul odors due to high emissions of methane and greenhouse gases; they apply clarifying and disinfecting agents that can remain as residues in the water when it is poorly treated or when its treatment is not properly terminated; they require a separate fecal sludge processing system; they have limited and inefficient flow capacity and variability; and they are highly costly and unsustainable.They require industrial-scale civil works and numerous human resources; they use obsolete technologies and increasingly exhibit deficiencies in their capacity to contribute to urban sanitation due to their high overload, which prevents them from treating wastewater adequately.

[0007] In accordance with the above, the most notable shortcomings of conventional wastewater treatment processes relate particularly to the fact that they produce bad odors; they apply chemicals such as acids, chlorine, clarifiers and flocculants that leave residues in the treated water; they are highly expensive and complex in their financing, operation and maintenance; they are often deficient in their design and have proven difficult to sustain over time and frequently represent a threat to public health and the environment.Currently, in much of the developing world, most treatment plants are operating beyond their capacity, and fecal waste from poorly treated sewage is dumped into the environment, affecting groundwater with contaminants that have not been properly removed from the water; and affecting bodies of water such as rivers, lakes, estuaries and seas, causing highly unfavorable and harmful side effects for flora, fauna and environmental health.

[0008] The present invention solves the problem of residual solids treatment, the problem of chemical residues that may remain in poorly treated wastewater; the problem of polluting discharges, since it purifies wastewater and operates according to its calculated capacity; it solves the problem of bad odors; it solves the problem of operating and maintenance costs for conventional plants, since it presents a medium-sized machine—compared to conventional plants—and is simple to operate; it solves the problem of the civil works of highly costly treatment plants in terms of their infrastructure, since it is modular and requires civil works of minimal impact; it solves the problem of pollution in wastewater treatment plants and the problem of poor quality water delivered by conventional plants, since it produces high-quality purified and / or alkaline water;It solves the problem of scarcity in rural areas with water stress because its design is highly adaptable to the size of even a trailer; it solves the problem of the high electricity costs associated with the operation of conventional wastewater treatment plants because it operates with low electrical horsepower and can be adapted to operate with solar energy; and it solves the problem of the limited flow variability of conventional plants because it works with a wide range of flows without saturating.

[0009] In this sense, the need to clean wastewater in a more holistic way gave scientific and technical motivation to the development of the present invention, in which physical processes are reduced and chemical processes are avoided, where the process of the invention begins directly from the biological process of solids digestion, creating the oxygenation and recirculation conditions conducive to the aerobic and anaerobic tanks so that the colony of bacteria in the microbial digester medium acts directly on the solids, sludge, mud and sediments in the wastewater, consuming up to 98% of them, in addition to fats, oils, biological oxygen demand (BOD), chemical oxygen demand (COD), total dissolved solids (TDS), nitrates (FOG), ammonia, phosphorus, E. coli, Salmonella, Listeria, Cyclospora, microplastics and other factors that contribute to the depreciation of water quality.

[0010] Therefore, in the state of the art, there is no sustainable wastewater treatment system using a microbial digester that removes solids, viruses, bacteria, and contaminants from wastewater for reuse, eliminates bad odors associated with handling solids and sludge, avoids the use of chemicals harmful to humans and the environment, preserves the physicochemical qualities of water, and avoids the post-treatment process and handling of remaining solids.

[0011] OBJECTS OF THE INVENTION

[0012] It is therefore an object of the present invention to provide a sustainable wastewater treatment system through a microbial digester medium which digests between 95 and 98% of the solids, fats, oils, ammonia and other contaminants contained in the wastewater.

[0013] Another object of the present invention is to provide a sustainable wastewater treatment system through a microbial digester medium capable of producing purified and alkaline water at industrial volumes in 24-35 hours of processing.

[0014] A further object of the present invention is to provide a sustainable wastewater treatment system through a microbial digester medium which solves the problem of water stress and the shortage of clean water that impacts the world's population and protects the water resource from contaminants and harmful substances present in it.

[0015] Another object of the present invention is to provide a sustainable wastewater treatment system through a microbial digester medium which avoids the use of chemicals harmful to humans and the environment such as flocculants, chlorine and clarifiers and preserves the physicochemical qualities of water by not altering the H2O molecule.

[0016] A further object of the present invention is to provide a sustainable wastewater treatment system through a microbial digester medium which avoids the post-treatment process and handling of remaining solids, saves electrical energy by 70%; and is of modular and scalable design.

[0017] Yet another object of the present invention is to provide a sustainable wastewater treatment system through a microbial digester medium which occupies 60% less space in infrastructure and field design than a conventional treatment plant.

[0018] Yet another additional object of the invention is to provide a sustainable wastewater treatment system through a microbial digester medium that complies with environmental standards, specifically with NOM-127-SSA1-2021, Water for human use and consumption.

[0019] BRIEF DESCRIPTION OF THE INVENTION

[0020] These and other objectives are achieved through a sustainable wastewater treatment system using a microbial digester, which consists of a first reservoir tank configured to hold a wastewater effluent at 70% of its capacity; a second and third aerobic and anaerobic process tanks in fluid communication with each other and with the first reservoir tank through wastewater feed and return conduits, which are configured to be filled to 70% of their capacity with wastewater from the first reservoir tank;a control system configured so that once the second and third tanks are 70% full, a signal is sent to generate a recirculation cycle between the first, second, and third tanks, shutting down the filling of these tanks to pause the treatment process for 20 hours, where first 5% of the wastewater is recirculated from the first tank to the second tank, and from the second to the third tank, and where the third tank returns the same 5% to the second tank and then that same 5% to the first tank and so on during the cycle that lasts said 20 hours; where said second tank comprises the microbial digester medium consisting of a tube or cylinder containing beneficial microbes on a float attached to the second tank; and microbubble aeration diffusers to provide oxygen to the microbes;where during the first 7 to 9 hours these beneficial microbes carry out an aerobic-anaerobic microbial remediation process in the wastewater circulating between the second and third tanks, where these beneficial microbes convert ammonia NH3 into ammonium NH4, to decompose said ammonium NH4 first into nitrites NO2, and in turn decompose said nitrites NO2 until converting them into nitrates NO3, where these nitrates NO3, being heavy, sink below a biological bed formed at the bottom of the second tank where a space has been created within which these beneficial microbes remove the oxygen (O2) from the nitrates, releasing nitrogen gas and carbon dioxide into the water column, where due to the constant mixing, there will be no floating scum, methane, hydrogen sulfide, or odors present; a filtration set that receives the treated water from the third tank, which comprises a filter to remove solids; a second filter for polishing;and a third filter for tertiary treatments; where said filtration system removes remaining particles, suspended solids and settleable solids in the water, removes humic and ulvic acids, various volatile organic compounds, some fats and some proteins, eliminates odor and color in the water, and some agrochemicals; a fourth disinfection tank, which receives the filtered water from the first filtration set, which is configured to disinfect the filtered water by injecting ozone through an ozone generator, where the water remains in said fourth tank in a recirculation with microbubble oxygenation of 4-8 hours to achieve microbiological parameters of 0 and controlled physicochemical parameters in the regulations for water for human use and consumption;and a fifth conservation tank configured to receive the disinfected water from the fourth disinfection tank, which comprises a magnetic and ultrasonic conservation system which emits: sound waves with different frequencies and a magnetic field to control the minerals in the water and prevent the development of algae due to the effect of the chemicals applied to the treated water, which release cyanotoxins and cyanobacteria, reducing the parameters of TSS, COD, BOD, turbidity and suspended solids in the stored water.

[0021] The additional features and advantages of the invention should be more clearly understood by a detailed description of the preferred embodiment thereof, given by means of a non-limiting example with reference to the accompanying drawings, in which:

[0022] BRIEF DESCRIPTION OF THE FIGURES

[0023] Figure 1 is a schematic diagram of the wastewater treatment system using a microbial digester medium of the present invention. Figure 2 is a perspective view of the first reservoir tank of the wastewater treatment system using a microbial digester medium of the present invention.

[0024] Figure 3 is a perspective view of the raft or float with the plurality of microbubble aeration diffusers comprising the beneficial microbead container cylinder of the second tank of the wastewater treatment system through a microbial digester medium of the present invention.

[0025] Figure 4 is a perspective view of the second aerobic and anaerobic process tank of the wastewater treatment system through a microbial digester medium of the present invention.

[0026] Figure 5 is a perspective view of the third aerobic and anaerobic process tank of the wastewater treatment system through a microbial digester medium of the present invention.

[0027] Figure 6 is a perspective view of the ozone generator that injects ozone into the inlet pipe of the fourth tank of the wastewater treatment system through a microbial digester medium of the present invention.

[0028] Figure 7 is a perspective view of the fourth disinfection tank of the wastewater treatment system through a microbial digester medium of the present invention.

[0029] Figure 8 is a perspective view of the fifth conservation tank of the wastewater treatment system through a microbial digester medium of the present invention.

[0030] Figure 9 is an image showing the raw water to be treated in the wastewater treatment system through a microbial digester medium of the present invention.

[0031] Figure 10 is an image showing a close-up of the beneficial bacteria in the process of encapsulation and digestion of suspended solids, used in the wastewater treatment system through a microbial digester medium of the present invention.

[0032] Figure 11 is an image showing the treated water in the aerobic-anaerobic microbial remediation process in the second and third tanks of the wastewater treatment system through a microbial digester medium of the present invention.

[0033] Figure 12 is an image showing the disinfected water as a finished product from the disinfection process carried out in the fourth tank and stored in the fifth tank of the wastewater treatment system through a microbial digester medium of the present invention.

[0034] DETAILED DESCRIPTION OF THE INVENTION

[0035] The present invention relates to a wastewater treatment system using a microbial digester medium. Its function is to treat wastewater from humans, animals, agricultural processes, and industrial processes in a decentralized and independent manner, using a series of technologies, equipment, and machines that constitute a new way of cleaning, filtering, disinfecting, and purifying wastewater in a process that lasts between 24 and 35 hours, is efficient, ecological, economical, modular, has a low environmental impact, and works with industrial-volume wastewater influents.The industrial utility of this wastewater treatment system lies in its ability to remove solids, viruses, bacteria, and contaminants from wastewater; recover and clean wastewater for reuse; purify wastewater in a 24-35 hour process; eliminate unpleasant odors associated with handling solids and sludge in conventional wastewater treatment processes; avoid the use of chemicals harmful to humans and the environment, such as flocculants, chlorine, and clarifiers; preserve the physicochemical qualities of water by not altering the H2O molecule; eliminate the need for post-treatment and handling of remaining solids; save electricity; operate using solar energy; reduce operating and maintenance costs; require minimal civil works; and feature a modular and scalable design.

[0036] In this regard, the need for a more holistic approach to wastewater treatment provided the scientific and technical motivation for the development of the present invention. The first aspect of this invention is a wastewater treatment system that utilizes a floating raft containing a colony of highly facultative microbes. These microbes, when properly oxygenated, reproduce continuously and digest between 95% and 98% of the solids, fats, oils, ammonia, and other contaminants in the wastewater, which will be described in greater detail below. This microbial digester system, in conjunction with a series of innovative pumping techniques and filtration, purification, and disinfection processes,They complete a system capable of producing purified and alkaline water in industrial volumes in 24-35 hours of processing. The main objective of the present invention is to recover wastewater for cleaning and purification; solve the problem of water stress and the shortage of clean water that impacts the world's population; protect water resources from potential contaminants and harmful substances present in them; provide purified and alkaline water to cities and rural communities experiencing water stress; clean wastewater from industrial, agricultural, livestock, commercial, urban, and domestic processes in an environmentally friendly manner; treat wastewater holistically, allowing discharges to be released into the land or bodies of water without any threat of contamination; and solve logistical problems in the conventional operation of wastewater treatment.and those directly related to the high operating costs of solids post-treatment; contribute to restoring marine flora and fauna affected by discharges of fecal matter, sewage and / or untreated wastewater from municipal plants; and present an efficient solution for the treatment and purification of various types and qualities of wastewater from different process industries, specifically human wastewater, pig processing plants, and wastewater from agricultural and industrial processes, complying with environmental standards and regulations for wastewater treatment.

[0037] With reference now to Figures 1 to 8, in the first aspect, the sustainable wastewater treatment system using a microbial digester medium of the present invention, generally numbered 1000, is shown. Said wastewater treatment system 1000 is generally made up of an influent or wastewater inlet 1100; a first reservoir tank 1200 configured to contain a wastewater effluent; a second 1300 and third 1400 aerobic and anaerobic process tanks in fluid communication with each other and with the first reservoir tank; a filtration assembly 1500; a fourth disinfection tank 1600; a fifth preservation tank 1700; and a system control means 1800.

[0038] As will be evident to experts in the field, the 1200, 1300, 1400, 1600, and 1700 tanks are similar in construction and components. Therefore, for the sake of clarity and simplicity, only one of these tanks will be illustrated, in this case the third tank, the 1400. Therefore, when any component of the 1200, 1300, 1400, 1600, and 1700 tanks is mentioned in this description, it should be understood that these components are the same as or similar to those illustrated in Figure 4.

[0039] According to Figures 1 and 2, the total influent flow of wastewater into the first tank, cistern, or reservoir 1200 is calculated as follows: total flow for 24 hours, plus 5% recirculation from the second tank 1300 to the first tank 1200, plus a 30% safety factor. Therefore, the first wastewater tank, cistern, or reservoir 1200 will only be filled to 65% of its capacity. The remaining 5% is calculated as an additional margin for the recirculation factor, where by means of a conventional submersible sludge pump, water is pumped to the first tank, cistern or reservoir 1200. This submersible sludge pump will send a signal to the control means 1800 to turn off said pump when the tank is filled to 70% of its capacity, so that when this level is reached, the control means receives a signal from a float 1430 and will close a wastewater flow pipe 1100.Here the wastewater will be retained for 24 hours, with the help of a timer programmed to 25 hours located in the middle of the 1800 control. The additional hour will be used as a safety interval for the second 1300 and third 1400 tanks to complete their emptying without risk of contamination by new wastewater.

[0040] As can be seen in Figures 1 and 3 to 5, the second 1300 and third 1400 aerobic and anaerobic process tanks are filled by the first tank 1200 by means of a submersible pump 1220 and through the feed and recirculation pipes 1210, 1310 to 70% of their capacity, where, as shown in Figures 4 and 5, each of said second 1300 and third 1400 tanks comprises level floats 1340, 1420, which will send a filling signal to the control means 1800, which in turn will send a signal to the first tank 1200 to turn off the submersible pump 1220 in it, starting an aerobic and anaerobic process in said second 1300 and third 1400 tanks.

[0041] Once the second 1300 and third 1400 tanks are 70% full and the aerobic-anaerobic process begins, floats 1430 send a signal to initiate a recirculation process of 5% of the total flow between the first 1200, second 1300, and third 1400 tanks, and filling is stopped to park the process for 20 hours. Additionally, a recirculation subprocess takes place between the first 1200, second 1300, and third 1400 tanks, which we will call the anaerobic process tank.This recirculation subprocess between the first 1200, second 1300, and third 1400 tanks is carried out through a design where the submersible sludge pump 1220 installed in the first tank 1200 recirculates 5% of the water flow to the second tank 1300 through the feed and return pipe 1210, which in turn passes said 5% of the flow to the third tank 1400 by means of a second pump 1330 through a connection 1310 located at its lower part, where subsequently through that same connection or pipe 1310 the third tank 1400 returns that same 5% through a first pump 1420 to the second tank 1300 and then that same 5% is recirculated to the first tank through a first pump 1330 and the same pipe 1210 and so on during a cycle that lasts said 20 hours.

[0042] As shown in Figures 3 and 4, the second aerobic tank 1300 has a tube or cylinder containing beneficial microbes 1324 installed by means of a float 1320, which is attached to the second tank 1300 by means of supports 1322 and a stainless steel cable 1323. This tube containing beneficial microbes 1324 forms part of the microbial digester medium of the wastewater treatment system 1000 of the present invention, which is a microbial bioreactor made of perforated stainless steel, attached in turn to the floating raft by means of supports 1325 and a stainless steel cable 1326. This perforated tube is filled with a medium made of ceramic where the bacteria live. Said float further comprises a plurality of microbubble aeration diffusers 1321, which are also located around the entire tube to provide oxygen to the microbes with an air blower (not shown).

[0043] In accordance with the above, during the first 7 to 9.5 hours of the wastewater recirculation subprocess, during the aerobic-anaerobic microbial remediation process in human or swine wastewater between the second (1300) and third (1400) tanks, the following is observed: One microbe adheres to ammonia (NH3) and converts it to ammonium (NH4). Then, another microbe adheres to the ammonium and decomposes it into nitrites (NO2). The nitrites continue to decompose, becoming nitrates (NO3). These nitrates are heavy and sink below the biological bed that has formed at the bottom of the tank or pond from the multiplication and movement of the microbial mixture. This creates an anoxic space. Within this anoxic space, another microbe will extract oxygen (O2) from the nitrates, releasing nitrogen gas and carbon dioxide into the water column. Due to the constant mixing, there will be no floating slag. There will be no odor present.

[0044] The wastewater treatment system 1000 of the present invention comprises a medical-grade oil-free compressor or blower pump for generating oxygen (not shown), which distributes oxygen to the beneficial microbe float 1320, both within the float 1320 and around the circumference of the tank 1300. Therefore, within the second aerobic tank 1300, the following process takes place: the beneficial microbes are oxygenated, and the contaminant is oxidized with the aid of sunlight. The oxygen is mixed at a rate of 4 kg / hr at a sustained pressure of 40 PSI through a microbubble hose and a pressure regulator installed on the compressor. The beneficial microbe cylinder, tube, or cartridge must be installed at a depth of a minimum of 30 cm and a maximum of 150 cm from the surface.The 1324 microbe tube with direct aeration creates turbulent mixing, producing laminar flow that allows microbes in the wastewater to settle very quickly. This settling is crucial for reducing phosphorus and ammonia nitrogen in the wastewater. The beneficial microbes then form a sludge layer where nutrients are captured through biochemical processes, producing nitrogen gas. The microbes break down the hydrogen from ammonia and the oxygen from nitrates and nitrites. This microbial technology utilizes naturally occurring, non-pathogenic, facultative anaerobic microflora capable of functioning effectively under both aerobic and anaerobic conditions.This technology uses a combination of anaerobic and aerobic stages, reducing aeration demand by more than 80% compared to conventional treatment systems, without the need to install anaerobic reactors. This is particularly relevant for effluents with low degradability and very low biogas generation potential, substantially reducing capital costs. During the 15.With 5 to 18 hours remaining (depending on the type of wastewater), the process will continue until it reaches maximum efficiency, breaking down the sludge (accumulated layers of dead bacteria) and the rest of the suspended and settling solids and treating the remaining waste, including toxic waste in the water, reducing the biological oxygen demand (BOD), chemical oxygen demand (COD), TSS (Total Suspended Solids), nitrates, FOG (fats, oils and greases of animal or vegetable origin), ammonia, phosphorus and other factors that contribute to the depreciation of water quality.

[0045] As can be seen, the wastewater treatment system 1000 of the present invention uses microbes to treat wastewater instead of chemicals. These microbes can treat ammonia aerobically. Furthermore, different sets of denitrifying and nitrifying bacteria are used to break down the ammonia into nitrites and nitrates. Denitrifying bacteria use a different set of nitrifying bacteria to break it down into elemental nitrogen, which is then released into the atmosphere through sediment at the bottom of the wastewater tanks containing 20 to 100 billion microbes per cubic centimeter.

[0046] In this regard, since the microbes are facultative, it is possible to remove oxygen from nitrates, thus releasing nitrogen into the air when the anaerobic phase is reached. Therefore, the microbes become activated and begin to multiply once they come into contact with oxygen and wastewater. These microbes digest the waste and convert it into carbon dioxide and water. Because aerobic microbes are used in the process of the present invention, methane is not produced, and it is possible to eliminate odor by breaking the bond between the hydrogen sulfides, which cause the unpleasant smell. The microbes are also facultative, meaning they can be either aerobic or anaerobic.

[0047] With reference again to Figure 1, once the recirculation process between the first, second 1300 and third 1400 tanks is completed, after the aforementioned 20 hours, the control means 1800, by means of a timer, sends a signal for the pumps 1330 and 1420 of the second and third tanks to pump the treated wastewater to the filtration assembly 1500, through the pipe 1410, where said filtration assembly comprises three types of filter:

[0048] A first solids filter selected from a 4” helix disc or ring filtration system, which filters up to 100 parts of settleable solids; or a multimedia filter with automatic backwash valve, sand, gravel, stone refills;

[0049] A second zeolite filter for polishing; and

[0050] A third multimedia filter with a fiberglass tank, containing bituminous activated carbon Gama B and Gama B (LF) mineral base and is specially designed for tertiary wastewater treatment.

[0051] This 1500 filtration unit is configured to remove suspended and settleable solids from water, remove humic and 14ulvic acids, various volatile organic compounds, some fats and some proteins, eliminate odor and color in water, and some agrochemicals.

[0052] The filtered water flows to the fourth disinfection tank 1600, which is designed to hold 100% of the total flow plus a 30% safety factor. This fourth disinfection tank 1600 includes an ozone generator 1620, which is connected to an injector installed in the pumping line 1520 leading to the tank. The injector is configured to mix ozone directly with the water flowing through pipe 1520 for disinfection. The ozone-mixed water from pipe 1520 then enters the fourth disinfection tank 1600 and is recirculated between the tank and the filtration unit by a first pump 1640 for a period of four hours. During this time, ozone is continuously injected into the water to achieve microbiological parameters of 0 and controlled physicochemical parameters as per regulations for water intended for human use and consumption.Water enters the tank and fills it to the level marked by the float 1630, which, through the control means 1800, sends a signal to turn off the pump 1320 of the third tank 1400, which also supplies the filtration unit 1500. When the pump 1320 of the third tank 1400 is turned off, a surface pump located outside said third tank 1400 recirculates the ozone to the fourth tank 1600 and injects ozone for disinfection by means of a 15vvic in the injector, which is connected to the pump's recirculation line and to the ozone generator to dose pure oxygen at a rate of Kg / hour to produce 120 to 340 gr / hr of ozone, which has proven to be highly effective in combating viruses and bacteria in water.

[0053] When the filling process of the fourth disinfection tank 1600 is finished, then the emptying floats 1340, 1430 of the second 1300 and third 1400 tanks send a signal to the pump of the first tank (cistern) to start filling said second 1300 and third 1400 tanks again, and begin a new process or work cycle.

[0054] Once the four hours of water recirculation and ozonation have elapsed, the control means emits a signal to turn off the recirculation and ozone mixing process to start emptying the fourth disinfection tank 1600 and send the disinfected water to the fifth treated water conservation tank 1700 by means of a second pump 1640 through the feed pipe 1610, 1530.

[0055] The treated water from the fourth tank 1600 is then stored in the fifth tank for use in agricultural irrigation or water supply. As is well known, water stored in open-air reservoirs like the fifth tank develops inert organic material on its surface, such as algae, bacteria, fungi, and other inorganic particles that contribute to sludge formation. Therefore, to prevent the formation of algae, bacteria, and cyanobacteria in the stored treated water, the fifth storage tank 1700 includes an automated magnetic and ultrasonic preservation system. This system is controlled by the control unit 1800, where the ultrasonic equipment 1710 emits sound waves at different frequencies, propagating at speeds of approximately 2,000 m / s, thus preventing the growth of green or blue-green algae, cyanobacteria, and other microorganisms.E. coli and Salmonella in stored water, due to the effect of the chemicals applied to the treated water, which release cyanotoxins and cyanobacteria, reducing the parameters of TSS, COD, BOD, turbidity and suspended solids in the stored water.

[0056] This magnetic and ultrasonic preservation system also includes a 1720 magnetic conditioner, configured to control minerals in the water. This conditioner allows the ultrasonic signal to travel farther and more efficiently, especially on windy or calm days. Designed for a magnetic power of 2500 to 4000 Gauss, this conditioner prevents the proliferation of algae or cyanobacteria and keeps the water alive by generating a magnetic field that does not require an electrical connection. To maintain the magnetic field's effectiveness, it must always be installed downstream of the pump so that the centrifugal force generated by the pump does not diminish the magnetic charge passing through the field.

[0057] In a second aspect, the present invention relates to a wastewater treatment process for human consumption through a microbial digester medium, which comprises the following steps:

[0058] 1) analyze the climatological conditions of the place where the wastewater treatment system 1000 of the present invention will be installed (rain, wind, temperature and average humidity);

[0059] i) gather information regarding: a) best location and arrangement of the tanks; b) define whether the tanks will be visible or buried, c) estimated energy requirement and type of energy supply (solar, or electric); iii) determine the influent flow (in liters and cubic meters) of wastewater to be treated;iv) take a sample of the wastewater to be treated and determine the water quality by means of physicochemical and microbiological tests of the concentrations of viruses, bacteria and various contaminants in the wastewater to be treated, such as fecal coliforms, total coliforms, total dissolved solids, TSS (total suspended solids), settleable solids, COD (chemical oxygen demand), BOD (biological oxygen demand), chlorides, total cyanides, DT (total hardness), sulfates, nitrate nitrogen, nitrite nitrogen, ammonia nitrogen, total Kjeldahl nitrogen, total phosphorus, detergents, fluorides, aluminum, arsenic, barium, cadmium, chromium, copper, iron, mercury, manganese, nickel, sodium, lead, zinc, Cyclospora, E. coli, Salmonella, Listeria, fats and oils, among others;v) calculate the total duration of the process by assigning time to each of the treatment stages to which the wastewater will be subjected, which range between 25-35 hours; vi) calculate the parameters of the pumping equipment, electrical equipment, ozone generator, as well as the resistance of the connection materials that will make up the wastewater treatment system 1000; vii) prepare and install the pumping, recirculation, microbial remediation, filtration, polishing, compression, pressurization, automation, ozonation, magnetism and algae removal equipment, as well as all connections, pipes, cables, tanks, hoses, fasteners, electrical panels, bases and structures previously defined in the civil works design; viii) equalize the treatment system before starting the treatment stages, as follows:;

[0060] 1. On the first day, 100% of the incoming flow is mixed at a ratio of 80% clean water and 20% wastewater, while observing that the bacteria develops correctly, and that the following changes in the water appear with the naked eye: a) in the first two hours a thick foam begins to form on the surface of the water, this is an indicator that chemical and biological reactions begin in the water; b) at 5 hours a change in the smell begins to be noticeable and a separation of the solids into a kind of island, indicating that the solid begins to be consumed and digested; c) at 8 hours the islands of solids appear even more separated from each other and white residue is observed on the edges of the islands of fecal waste; d) at 9 hours the water changes to a light brown color, more transparent and less dense, with a more liquid and less thick consistency; e) from 10 to 12 hours the smell of recycled cardboard begins to be noticeable;f) After 12 hours the changes begin to become imperceptible;

[0061] 2. In the following days, equalization is no longer performed, only recharging, emptying the tanks to 20% to leave active bacteria and avoid having to equalize again.

[0062] 3. The proportion of wastewater will be increased in the mixture as follows: on the second day to 70 / 30, that is, 70% clean water and 30% wastewater, on the third day 60 / 40, on the fourth day to 40 / 60, on the fifth day 30 / 70, on the sixth day a proportion of 20% clean water and 80% wastewater is used, on the seventh day of equalization 100% of the wastewater flow is used in the process; ix) start the wastewater treatment stages: ix.1) retention stage which comprises the steps of: supplying the total flow of the wastewater influent in the first tank 1200, which is calculated as follows: total flow for 24 hours, plus 5% recirculation from the second tank 1300 to the first tank 1200, plus a 30% safety factor;Fill the first tank 1200 to 70% of its capacity, where said 70% corresponds to filling the tank to 65% of its capacity and the remaining 5% corresponds to an additional margin referring to a recirculation factor; stop filling the first tank once 70% of its capacity is reached; retain the wastewater in said first tank for 24 hours, with the help of a timer programmed to 25 hours located in the control means 1800, where the additional hour will be used as a safety interval for the second 1300 and third 1400 tanks to finish emptying without risk of contamination from the entry of new wastewater into them; Fill the second 1300 and third 1400 aerobic and anaerobic process tanks with wastewater from the first tank, to 70% of its capacity, where once said 70% is reached, the filling of said second 1300 and third 1400 aerobic and anaerobic process tanks is stopped;ix.2) Recirculation stage and aerobic-anaerobic microbial remediation process, comprising the steps of: recirculating the wastewater between the first, 1200, second, 1300 and third, 1400 tanks, where first 5% of the water flow is transferred from the first tank 1200 to the second tank 1300, and from the second tank 1300 to the third tank 1400, and subsequently, the third tank 1400 returns that same 5% to the second tank 1300, which in turn returns it to the first tank 1200, generating a recirculation cycle that lasts 20 hours, where during the first 7 to 9.5 hours of said recirculation cycle: an aerobic-anaerobic microbial remediation subprocess is carried out between the second, 1300 and third, 1400 tanks, where the beneficial microbes in the container cylinder of beneficial microbes 1324:;

[0063] A microbe attaches to ammonia (NH3) and becomes ammonium (NH4);

[0064] Then, another microbe attaches to the ammonia and breaks it down into nitrites (NO2);

[0065] Nitrites continue to decompose, turning into nitrates (NO3). These nitrates are heavy and sink below the biological bed that has formed at the bottom of the tank or pond from the multiplication and movement of the microbial mixture;

[0066] This creates an anoxic space; within this anoxic space, another microbe will extract oxygen (O2) from the nitrates, releasing nitrogen gas and carbon dioxide into the water column; where, due to constant mixing, there will be no floating scum. There will be no odor present; ix.3) ​​automated filtration stage, comprising the steps of: pumping at a maximum of 60 psi and a minimum of 35 psi of pressure to send the treated water from the third tank 1400 to a filtration assembly 1500 configured to remove suspended and settleable solids from the water, remove humic and ulvic acids, various volatile organic compounds, some fats and some proteins, eliminate odor and color from the water, and some agrochemicals, comprising the steps of: performing a first solids filtration using the first solids removal filter which filters up to 400 parts of settleable solids, gravel,stones and sands; perform a second polishing filtration using the second zeolite filter; perform a third tertiary filtration using the third bituminous activated carbon filter Gama B and Gama B (LF) mineral base; ix.4) disinfection and purification stage by ozonation, comprising the steps of: sending the filtered water from the filtration unit 1500 to the fourth disinfection tank 1600; injecting and mixing ozone directly at 35-65 psi pressure with the water coming from the filtration unit for disinfection,so that the filtered water enters the fourth disinfection tank 1600 already mixed with ozone; maintain the filtered water in a disinfection recirculation for a predetermined period of time of approximately 4 to 6 hours to achieve microbiological parameters of 0 and controlled physicochemical parameters in the regulations for water for human use and consumption; where once the predetermined recirculation time has elapsed: stop the disinfection recirculation of the water, and empty said fourth disinfection tank to send the disinfected water to the fifth conservation tank; ix.5) magnetic and ultrasonic conservation stage of water stored in open reservoirs, which comprises the steps of: storing the disinfected water from the fourth disinfection tank 1600, in the fifth conservation tank 1700; applying ultrasonic waves with different frequencies to the disinfected water, to prevent the development of green or blue algae, Cyanobacteria,E. coli and Salmonella in the stored water; apply a magnetic field to the disinfected water to improve electrical conductivity and maintain the ultrasonic frequency in the water for a longer time, at a greater distance, and with greater efficiency; x) verify specific system operating points such as: a) working pressure, b) check all control panels to ensure all pumps are in automatic operation and none are in protection alarm, c) check the oxygen level of the microbial remediation equipment, d) check the correct oxygenation of the ozonation equipment, e) monitor the functions of the ozonation control panel, f) monitor the ozone mixture defined above for the system, g) check on the filtration panel that the backwashes of the multimedia filters are being carried out correctly and that the backwashes have gone through the drain pipe to the holding tank, h) identify if there are any,Check for visible leaks in the piping and / or connections and repair them; i) verify that the operating flow, pumping flow, tank levels, and float level readings are maintained within established parameters; j) verify that the ultrasonic controller and the recirculation pump in open reservoirs are functioning correctly; and proceed to: xii) take a water sample resulting from step x); and subsequently: xii) perform physicochemical and microbiological tests to ensure compliance with the parameters of the following SEMARNAT standards: Mexican Official Standard NOM-001-SEMARNAT-2021; Mexican Official Standard NOM-002-ECOL-1996; Mexican Official Standard NOM-003-ECOL-1997; and Mexican Official Standard NOM-127-SSA1-2021.

[0067] With reference to Figures 5 to 8, the implementation of the wastewater treatment process and system through a microbial digester medium of the present invention is shown in a project for wastewater treatment to water that complies with NOM 001-002-003 and 127 in Country Club Los Cabos:

[0068] Figure 5 illustrates the taking of a raw water sample, showing the suspended solids. This sample was taken at 2:00 PM. Figure 6 illustrates a close-up of the beneficial bacteria undergoing encapsulation and digestion of suspended solids, which are used in this project.

[0069] The incoming physicochemical parameters of the wastewater are as follows:

[0070] Furthermore, the microbiological parameters in the influent of raw human wastewater in an untreated agricultural colony by the wastewater treatment process and system through a microbial digester medium of the present invention are as follows:

[0071]

[0072] Figure 7 shows the water treated with a 24-35 hour bacterial process, which is carried out in the wastewater recirculation subprocess where said aerobic-anaerobic microbial remediation process takes place in the second 1300 and third 1400 tanks, where the physicochemical parameters of the treated water outlet in said subprocess are as follows:

[0073] The microbiological parameters in the influent of human wastewater in an agricultural colony treated with beneficial microbes for 24 hours using the wastewater treatment process and system through a microbial digester medium of the present invention are as follows:

[0074] Figure 8 shows the disinfected water as a finished product after a 35-hour bacterial and disinfection process carried out in the fifth tank, where the water contains 0% odor, taste, COD, and BOD. The physicochemical parameters of the disinfected water are as follows:

[0075] The microbiological parameters in the influent of human wastewater in an agricultural colony with ozone disinfection in a 26-hour process are as follows:

[0076] EXAMPLES:

[0077] Example 1: Sustainable wastewater treatment process (raw drainage water) from pig fattening and maternity pens, with high concentrations of ammonia, BOD, COD, fecal and total coliforms, to convert it into purified water for human use and consumption in compliance with the Official Mexican Standards NOM-003-ECOL-1997 and NOM-127-SSA1-2021, for a flow of 10,000 Lts in 30 hours of process.

[0078] Process Input Values:

[0079] Process Output Values:

[0080] Example 2: Sustainable wastewater treatment process from sludge from a treatment plant of an animal meal processing industry (bovine, porcine, caprine, fish and shrimp), with high concentrations of phosphorus, mercury, zinc and fecal coliforms, to convert it into purified water for human use and consumption in compliance with the Official Mexican Standards NOM-003-ECOL-1997 and NOM-127-SSA1 -2021, for a flow of 30,000 Lts in 35 hours of process.

[0081] Process Input Values:

[0082] Process Output Values: Example 3: Sustainable wastewater treatment process from a residential human colony, with high fat and oil content, to convert it into purified water for human use and consumption in compliance with the Official Mexican Standards NOM-003-ECOL-1997 and NOM-127-SSA1 -2021, for a flow of 10,000 Lts in 24 hours of process.

[0083] Process Input Values:

[0084] Process Output Values:

[0085] Based on the foregoing, it will be evident to a person skilled in the art that the wastewater treatment system using a microbial digester described above is presented for illustrative purposes only, as a person skilled in the art may make numerous variations to it, provided it is designed in accordance with the principles of the present invention. Consequently, the present invention includes all the variations that a person skilled in the art may devise based on the concepts contained herein, in accordance with the following claims.

Claims

CLAIMS 1. A sustainable wastewater treatment system for human consumption using a microbial digester, characterized in that it comprises: a first reservoir tank configured to contain a wastewater influent at 70% of its capacity; a second and third aerobic and anaerobic process tanks in fluid communication with each other and with the first reservoir tank by means of wastewater feed and return conduits, which are configured to be filled to 70% of their capacity with wastewater from the first reservoir tank;a control system configured so that once the second and third tanks are 70% full, it sends a signal to generate a recirculation cycle between the first, second, and third tanks, shutting down the filling of the second and third tanks to pause the treatment process for approximately 20 hours, where first 5% of the wastewater is recirculated from the first tank to the second tank, and from the second to the third tank, and where the third tank returns the same 5% to the second tank and then that same 5% to the first tank and so on during the cycle that lasts said 20 hours; where said second tank comprises the microbial digester medium consisting of a tube or cylinder containing beneficial microbes and a medium inoculated with mother nanobacteria on a float attached to the second tank; and microbubble aeration diffusers to provide oxygen to the microbes;where during the first 7 to 9 hours these beneficial microbes carry out an aerobic-anaerobic microbial remediation process among the wastewater that circulates between the second and third tanks, where these beneficial microbes convert ammonia NH3 into ammonium NH4, to decompose said ammonium NH4 first into nitrites NO2, and in turn decompose said nitrites NO2 until they convert them into nitrates NO3, where said nitrates NO3, being heavy, sink under a biological bed; formed at the bottom of the second tank where a space has been created within which these beneficial microbes extract oxygen (O2) from the nitrates, releasing nitrogen gas and carbon dioxide into the water column, where, due to constant mixing, there will be no floating scum or odors present; a filtration set that receives the treated water from the third tank, comprising a filter to remove solids; a second filter for polishing; and a third filter for residual tertiary treatments; where said filtration system removes suspended and settleable solids from the water, removes humic and fulbic acids, various volatile organic compounds, some fats and some proteins, eliminates odor and color in the water, and some agrochemicals;a fourth disinfection tank, which receives the filtered water from the first filtration set, which is configured to disinfect the filtered water by injecting ozone through an ozone generator, where the water remains in said fourth tank in a 4-hour recirculation to achieve microbiological parameters of O and controlled physicochemical parameters in the regulations for water for human use and consumption;and a fifth conservation tank configured to receive the disinfected water from the fourth disinfection tank, which comprises a magnetic and ultrasonic conservation system which emits: sound waves with different frequencies and a magnetic field to control the minerals in the water and prevent the development of blue algae due to the effect of the chemicals applied to the treated water, which release cyanotoxins and cyanobacterium bacteria, reducing the parameters of TSS, COD, BOD, turbidity and suspended solids in the stored water.

2. The wastewater treatment system through a microbial digester medium according to claim 1, further characterized in that the total flow of the wastewater influent in the first tank, cistern or reservoir 1200 is calculated as follows: total flow for 24 hours, plus 5% recirculation from the second and third tanks to the first tank, plus 5% that is sent from the third tank to the first tank, plus 30% safety factor. 3 The wastewater treatment system through a microbial digester medium according to claim 1, further characterized in that each of said second and third tanks comprises level floats, which will send a filling signal to the control medium, which in turn will send a signal to the first tank to turn off the submersible pump therein, starting the aerobic and anaerobic process in said second and third tanks.

4. The wastewater treatment system using a microbial digester medium according to claim 1, further characterized in that the first solids filter is selected from: a 4” disc or ring filtration helix system which filters up to 100 parts of settleable solids; a multimedia filter with automatic backwash valve, and refills of sand, gravel, stone.

5. The wastewater treatment system using a microbial digester medium according to claim 1, further characterized in that the fifth tank comprises an ultrasonic device that emits sound waves with different frequencies and a magnetic conditioner, configured to control the minerals in the water and allow the water waves to be carried where the ultrasonic signal travels over a greater distance and with greater efficiency.

6. The wastewater treatment system using a microbial digester medium according to claim 5, further characterized in that the magnetic conditioner is calculated for a magnetic power of 2500 to 4000 Gauss.

7. A wastewater treatment process for human consumption, which uses a wastewater treatment system through a microbial digester medium in accordance with claims 1 to 6, characterized in that it comprises the steps of: i) analyzing the climatological conditions of the place where the wastewater treatment system will be installed (rainfall, wind, temperature and average humidity); i) Gather information regarding: a) best location and arrangement of the tanks; b) define whether the tanks will be visible or buried; c) estimated energy requirement and type of energy supply (solar or electric); ii) determine the flow rate of the influent (in liters and cubic meters) of wastewater to be treated; iv) take a sample of the wastewater to be treated and determine the water quality by means of physicochemical and microbiological tests of the concentrations of viruses, bacteria and various contaminants in the wastewater to be treated; v) calculate the total duration of the process by assigning time to each of the treatment stages to which the wastewater will be subjected, which range between 24-35 hours; vi) calculate the parameters of the pumping equipment, electrical equipment, ozone generator, as well as the resistance of the connection materials that will make up the wastewater treatment system;vii) prepare and install the pumping, recirculation, microbial remediation, filtration, polishing, compression, pressurization, automation, ozonation, magnetism and algae removal equipment, as well as all connections, pipes, cables, tanks, hoses, fasteners, electrical panels, bases and structures previously defined in the civil works design; viii) equalize the treatment system before starting the treatment stages, which is carried out only once before the equipment is installed; ix) start the wastewater treatment stages, where: ix.1) a retention stage, which comprises the steps of: supplying the total flow of the wastewater influent to the first tank 1200, which is calculated as follows: total flow for 24 hours, plus 5% recirculation from the second and third tanks to the first tank, plus 5% that is sent from the third tank to the first, plus a 30% safety factor;fill the first tank to 70% of its capacity, where said 70% corresponds to filling the tank to 65% of its capacity and the remaining 5% corresponds to an additional margin referring to a recirculation factor from the second and third tanks to the first tank; stop filling the first tank once 70% of; its capacity; retain the wastewater in said first tank for 24 hours, with the help of a timer programmed to 25 hours located in the middle of the control, where the additional hour will be used as a safety interval for the second and third tanks to finish emptying without risk of contamination by the entry of new wastewater into them; fill the second and third aerobic and anaerobic process tanks with wastewater from the first tank, to 70% of their capacity, where once said 70% is reached, the filling of said second and third aerobic and anaerobic process tanks is stopped, and 5% is sent to the first tank; ix.2) a recirculation stage and aerobic-anaerobic microbial remediation process, which comprises the steps of: recirculating the wastewater between the second and third tanks where first 5% of the water flow from the second tank is passed to the third tank, and subsequently, the third tank returns that same 5% to the second, and subsequently the second and third tanks return another 5% to the first tank generating a recirculation cycle that lasts 20 hours, where during the first 7 to 9.5 hours of said recirculation cycle: carry out an aerobic-anaerobic microbial remediation subprocess between the second 1300 and third 1400 tanks, where in the beneficial microbes of the beneficial microbe container cylinder:. A microbe attaches to ammonia (NH3) and becomes ammonium (NH4); Then, another microbe attaches to the ammonia and breaks it down into nitrites (NO2); Nitrites continue to decompose, becoming nitrates (NO3). These nitrates are heavy and sink below the biological bed that has formed at the bottom of the tank or pond from the multiplication and movement of the microbial mixture; This creates an anoxic space; Within this anoxic space, another microbe will extract oxygen (O2) from the nitrates, releasing nitrogen gas and carbon dioxide in the water column; where, due to constant mixing, there will be no floating scum. There will be no odor present; ix.3) ​​an automated filtration stage, which comprises the steps of: sending the treated water from the third tank to a filtration assembly configured to remove suspended and settleable solids from the water, remove humic and fulbic acids, various volatile organic compounds, some fats and some proteins, eliminate odor and color from the water, and some agrochemicals, which comprises the steps of: performing a first solids filtration using the first solids removal filter which filters up to 100 parts of settleable solids; performing a second polishing filtration using the second zeolite filter; performing a third tertiary filtration using the third bituminous activated carbon filter Gamma B and Gamma B (LF) mineral base; ix.4) a disinfection and purification stage by ozonation, which comprises the steps of: sending the filtered water from the filtration unit to the fourth disinfection tank; injecting and mixing ozone directly with the water from the filtration unit for disinfection, so that the filtered water enters the fourth disinfection tank already mixed with ozone; maintaining the filtered water in a disinfection recirculation for a predetermined period of time of approximately 4 to 6 hours to achieve microbiological parameters of 0 and controlled physicochemical parameters in the regulations for water for human use and consumption; where once the predetermined recirculation time has elapsed: stopping the disinfection recirculation of the water, and emptying said fourth disinfection tank to send the disinfected water to the fifth storage tank; ix.5) a stage of magnetic and ultrasonic conservation of water stored in open reservoirs, which comprises the steps of:. Store the disinfected water from the fourth disinfection tank 1600 in the fifth conservation tank; apply sound waves with different frequencies to the disinfected water to prevent the development of green or blue algae, cyanobacteria, E.E. coli and Salmonella in the stored water; apply a magnetic field to the disinfected water to improve electrical conductivity and maintain the ultrasonic frequency in the water for longer, over a greater distance, and with greater efficiency; the minerals in the water allow the waves in the water where the ultrasonic signal travels to a greater distance and with greater efficiency; x) verify specific operating points of the system, and proceed to: xii) take a water sample resulting from step x); to subsequently: xii) perform physicochemical and microbiological tests to ensure compliance with the parameters of the following SEMARNAT standards: Mexican Official Standard NOM-001-SEMARNAT-2021; Mexican Official Standard NOM-002-ECOL-1996; Mexican Official Standard NOM-003-ECOL-1997; and Mexican Official Standard NOM-127-SSA1-2021.

8. The wastewater treatment process for human consumption according to claim 7, further characterized in that the physicochemical and microbiological tests performed are to determine concentrations of viruses, bacteria and various contaminants in the wastewater such as fecal coliforms, total coliforms, total dissolved solids, TSS (total suspended solids), settleable solids, COD (chemical oxygen demand), BOD (biological oxygen demand), chlorides, total cyanides, DT (total hardness), sulfates, nitrate nitrogen, nitrite nitrogen, ammonia nitrogen, total Kjeldahl nitrogen, total phosphorus, detergents, fluorides, aluminum, arsenic, barium, cadmium, chromium, copper, iron, mercury, manganese, nickel, sodium, lead, zinc, Cyclospora, E. coli, Salmonella, Listeria, fats and oils, among others.

9. The wastewater treatment process for human consumption according to claim 7, further characterized in that the verification of specific system operating points relates to: a) a) working pressure, b) check all control panels to ensure all pumps are in automatic operation and none are in protection alarm mode, c) check the oxygen level of the microbial remediation equipment, d) check the correct oxygenation of the ozonation equipment, e) monitor the functions of the ozonation control panel, f) monitor the ozone mixture defined above for the system, g) check on the filtration control panel that the backwashes of the multimedia filters are being carried out correctly and that the backwashes have gone through the drain pipe to the holding tank, h) identify any visible leaks in the piping at the connections and repair them, i) check that the operating flow, pumping flow, tank levels, and level floats are maintained within the established parameters, j) check that the ultrasonic controller and the recirculation pump in open reservoirs are functioning correctly,k) Check the conditions (appearance, color, odor) of the water in each tank.

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