Eureka-AI is an intelligent assistant for R&D personnel, combined with Patent DNA, to facilitate innovative research.
Eureka AI

19145 results about "Water resources" patented technology

Water resources are natural resources of water that are potentially useful. Uses of water include agricultural, industrial, household, recreational and environmental activities. All living things require water to grow and reproduce.

Design method for distributed hydrological model by using grid as analog unit

The invention discloses a design method for a distributed hydrological model by using a grid as an analog unit, which is called as ESSI for short. The design method comprises the following steps of: obtainment of a distributed parameter: converting vector data into grid data; generalization of a watershed hydrological process: establishing a universal runoff generating type for the grid; design of a runoff generating process: respectively computing the water-quantity distributing condition of each part according to different prior-period soil water conditions; design of a flow collecting process: respectively designing a Muskingum-Cunge method, a delay algorithm and a riverway segmentation Muskingum method for the flow collecting process computation of the model under different conditions; and model development and integration. The invention not only can finish the watershed hydrological process simulation at an arid region and a humid region, but also can realize the short-term flood forecast and the long-term rainfall-runoff process simulation and prediction of a watershed by using modularization and integration ideas as means, thereby providing scientific reference bases for deeply learning about the physical mechanism of water circulation by people, reducing the drought and water-logging disasters and reasonably developing and utilizing water resources.

Well drilling waste reinjection system and method

The invention discloses a well drilling waste reinjection system. The well drilling waste reinjection system comprises a solid-phase waste reinjection subsystem, a water supply pipeline and a liquid-phase waste reinjection subsystem. The solid-phase waste reinjection subsystem comprises a grinding device set, an adhesive manufacturing device and a reinjection pump, wherein the adhesive manufacturing device is connected with the grinding device set in series, and the reinjection pump is connected with the adhesive manufacturing device in series. The water supply pipeline is used for supplying water to the grinding device set. The liquid-phase waste reinjection subsystem comprises an oil-water separation device, wherein a water outlet of the oil-water separation device is connected with the water supply pipeline. According to the well drilling waste reinjection system, one-stop type processing of solid-phase waste and liquid-phase waste is achieved; due to the fact that the two subsystems are arranged together, the occupied area can be effectively reduced; water generated in the liquid-phase waste reinjection subsystem is directly provided for the grinding device set in the solid-phase waste reinjection subsystem and used for slurrying, the water generated in the liquid-phase waste reinjection subsystem can be effectively utilized, and waste of water resources is reduced. The invention further discloses a well drilling waste reinjection method.

Recycling water saving device of washing machine

The invention relates to a recycling water saving device of a washing machine, which belongs to the technical field of environmentally-friendly water treatment, comprises a shell, and is characterized in that a recycling water bucket, a water treatment device, a circuit integrated control operation actuator and a control circuit are respectively arranged in the shell, wherein the water treatment device is connected onto the recycling water bucket in parallel, a tap water inlet and a water outlet I of the water saving device are respectively arranged on the upper side of the shell, a water inlet and a water outlet II of the water saving device are respectively arranged on the lower side thereof, and the water treatment device consists of a double pole film and double liquid flow type hydroxyl free-radical generator, an aeration device and a filter unit. The invention comprehensively utilizes the initial discharged washing fluid, keeps the mixed liquid of a first rinsing and a second rinsing to repeatedly wash the clothing, not only the existence and accumulation of the salt content can be neglected, but also the purpose of saving the water resource is achieved. The water saving device is designed into an independent component so as to be compatible to various types of washing machines and detergents. In addition, a program control valve is designed and manufactured to realize the automation of the water saving device.

Technology for recovering water resources and salt from coking wastewater in coal chemical industry

A technology for recovering water resources and salt from coking wastewater in the coal chemical industry comprises the following steps: the wastewater is subjected to defluorination chemical treatment and subjected to sodium carbonate softening and precipitating treatment simultaneously, an advanced oxidation process is used for TOC (total organic carbon) degradation, a multi-medium and activated carbon filter is used for filtering separation, ultrafiltration is performed, nanofiltration membrane separation is performed, calcium and magnesium ions are separated, the calcium and magnesium ions in water produced through nanofiltration are lower than 2 mg / L, CaF2 crystallization scaling is hard to form, and nanofiltration passing liquid and nanofiltration strong brine are obtained; the nanofiltration passing liquid and the nanofiltration strong brine are treated respectively. Fluoride ions, hardness and organic carbon in the wastewater are removed, separation of multivalent salt and monovalent salt as well as concentration and evaporative crystallization of the salt is realized, more than 98% of the water resources is recovered, more than 95% of the salt resources are recovered, secondary hazardous waste is not produced, the system operation cost is reduced, and the problem about resource recovery and the environmental problem are solved finally.

Sewage treatment process and apparatus for synchronous electrogenesis desalinisation

The invention belongs to the technical field of water resource processing, and in particular relates to a technology and a device for processing sewage from synchronous electricity generation and desalting, which comprises an anode chamber, an anion exchange membrane, a middle desalting chamber, a cation exchange membrane and a cathode chamber. An electric generation microorganism membrane is arranged on an anode. Sewage flows into the anode chamber and is removed by oxidization under the action of electric generation microorganisms, and electrons are conducted to the anode. Anions in the middle desalting chamber penetrate the anion exchange membrane to reach the anode, and cations penetrate the cation exchange membrane to reach the cathode to realize the desalting processing and form internal currents. The electrons reach the cathode by external circuit loading to generate reduction reaction to realize the electricity generation process. The internal currents of the microorganism fuel battery are used for sewage processing, electric generation and desalting. The technology of the invention is simple and easy to operate and has low energy consumption and high efficiency. The device is simple in structure and is convenient for industrial production and utilization.

Washing machine with circulating water treatment function and control method thereof

A washing machine with a circulated water treatment function and a control method therefor. The washing machine comprises a water holding barrel (2), a washing structure arranged inside the water holding barrel (2) and a circulated water treatment device arranged under the water holding barrel (2), wherein the circulated water treatment device comprises a flocculation treatment unit and a filtering unit, the flocculation treatment unit comprises a flocculation container (10) connected to the water holding barrel (2) and a flocculation agent dosing device (11) for dosing a flocculation agent into the flocculation container (10), and water is discharged from the water holding barrel (2) to the flocculation container (10) for flocculation treatment; and the filtering unit comprises a filtering container (12) and a filter net (13) arranged inside the filtering container (12), the filtering container (12) is in communication with the flocculation container (10) and the water holding barrel (2), respectively, for filtering the water having been flocculation-treated in the flocculation container (10) and discharging same again into the water holding barrel (2) for reuse. The washing machine circularly treats water by flocculation and filtration till the end of washing, in which the water is discharged into the circulated water treatment device for purification in the flocculation treatment unit and the filtering unit and finally discharged outside. The washing machine has the advantages of saving water resources, reducing water pollution and protecting the environment.

Method for preparing graphene-coated carbon microsphere material by coating graphene oxide on carbon microsphere

InactiveCN102544459AWide range of optional preparation equipmentCell electrodesSucroseHazardous substance
The invention relates to a method for preparing a graphene-coated carbon microsphere material by coating graphene oxide on a carbon microsphere. The method comprises the following steps of: preparing a graphene oxide dispersion solution; preparing the carbon microsphere through taking glucose, sucrose and starch as a carbon source by using a hydrothermal method under acidic conditions; adding the dried carbon microsphere into the graphene oxide dispersion solution; filtering and drying to obtain a graphene-oxide-coating carbon microsphere product; and carrying out thermal reduction on the graphene-oxide-coating carbon microsphere product under a gas protective atmosphere, and naturally cooling to room temperature to obtain a graphene-coaed carbon microsphere product. Compared with the prior art, the method provided by the invention has the advantages that no harmful substances are used in a preparation process, the range of selectable preparation equipment is wide, the raw materials, i.e. graphene and the carbon microsphere, are not required for being subjected to further modification and processing, the water resources used in the preparation process can be recycled and utilized, and products with different proportions and different degrees of reduction can be prepared according to different needs, so that a precondition is provided for the diversity of materials.

Method for designing distributed-type hydrographical model based on penetration-storage integrated dynamic runoff yield mechanism

InactiveCN102419788AReasonable useReduce drought and flood disastersClimate change adaptationSpecial data processing applicationsGeneration processFlood hazard
The invention discloses a method for designing a distributed-type hydrographical model based on a penetration-storage integrated dynamic runoff yield mechanism, which relates to a method for designing a hydrographical forecast model, and mainly comprises the following steps that: A) acquiring distributed-type parameters; B) generalizing hydrographic process of a river basin; C) designing a penetration-storage integrated runoff generation process; and D) designing a junction process. The method is based on the penetration-storage integrated dynamic runoff yield mechanism to coordinate the distribution of water in the hydrographical sub-processes and to dynamically simulate the runoff generation process of grids, so not only can an advanced calculation and simulation platform be provided to other associated hydrographical ecological research such as sand generation and sand output of the river basin, transportation and movement of nutrients, dispersion of pollutants and the like, but also drought and flood hazards of the society can be reduced, scientific references can be provided to the reasonable development and utilization of the water resource, and scientific reference and reasonable suggestions can be provided to the management and scheduling of the water resource in China.

Intelligent dust concentration limit setting spray dust settling device, system and method

The invention discloses an intelligent dust concentration limit setting spray dust settling device. The device comprises a control unit, a dust concentration sensor, an electromagnetic valve and a sprinkler head, wherein the signal output end of the dust concentration sensor is connected with a signal input end of the control unit; a control signal output end of the control unit is connected with a control signal input end of the electromagnetic valve; and the control unit realizes spray control over the sprinkler head through the switching of the electromagnetic valve. In the device of the invention, the dust concentration limit is manually set; the spraying starts when the dust concentration limit exceeds an upper limit value and stops when the dust concentration limit is less than a lower limit value; and thus the meaningless waste of water resource is prevented, the water logging in roadways is reduced, the working conditions are improved and the health and the safety of mine workers are ensured. In addition, the invention also discloses an intelligent dust concentration limit setting spray dust settling system, so the remote on-line monitoring of the dust concentration can be realized; meanwhile, the invention also discloses an intelligent dust concentration limit setting spray dust settling method.

Base pit dewatering and water saving device and construction method thereof

The invention relates to a base pit dewatering and water saving device and a construction method thereof. The middle part of the base pit of a baseboard structure is provided with a well pit; the well pit is internally and vertically provided with a no-sand tube; pebbly sand is filled between the bottom and periphery of the no-sand tube; the top of the no-sand tube is higher than the top surface of the well pit; a water pump is arranged in the no-sand tube; blinding layer concrete is poured at the top surface of the well pit which is at the periphery of the no-sand tube and the side wall of the base pit of the baseboard structure; and the top elevation of the no-sand tube is flush with the elevation of a blinding layer; a dewatering conduit is pre-buried in a base pit baseboard right above the no-sand tube, a waterproof layer is paved on the blinding layer concrete, a layer of waterproof and protective concrete is poured on the waterproof layer, and the base pit baseboards are poured above the waterproof and protective concrete and at the periphery of the dewatering conduit. The method of the invention has lower investment, saved cost and less amount of dewatering amount, thereby reducing the loss of underground water and protecting water resource; and the method can be adopted for a project in which the well point dewatering method is not ideal for dewatering or a project in which the underground water is near the base pit elevation.

Automatic cleaning system, air conditioner and control method

The invention provides an automatic cleaning system, an air conditioner and a control method. The automatic cleaning system comprises a water storing device of which the first end is connected to an indoor unit condensed water collector and an outdoor unit condensed water collector, a cleaning water pump of which one end is connected to the second end of the water storing device and while the other end is connected to an indoor unit water sprayer and an outdoor unit water sprayer, a first detecting module for detecting the first operation state parameters of an indoor heat exchanger, a second detection module for detecting the second operation state parameters of an outdoor heat exchanger, and a control module for determining whether to start the cleaning water pump to automatically clean the indoor heat exchanger and / or the outdoor heat exchanger according to the first operation state parameters and / or the second state parameters. According to the technical scheme, the system has the advantages that the heat exchangers can be automatically cleaned, so that the timeliness and efficiency of cleaning of the heat exchangers can be effectively improved, and as a result, the operation reliability of the air conditioner can be improved; in addition, the condensed water can be recycled, and thus the water resource can be saved.

Method and technological process for treating sewage of oil recovery

InactiveCN101172726ASolve corrosiveSolve problems such as substandard injection water qualityWaste water treatment from quariesWater/sewage treatment by irradiationDisinfectantSludge
The invention belongs to a petroleum sewage treatment method, in particular relates to an oil pumping in oil filed sewage treatment method and the process flow thereof. The invention is characterized in that the oil pumping sewage from the rude oil is firstly added with oxidizer so as to partially oxidize the sulfide in the sewage, and then is added with precipitant so as to remove the settlementof rest secondary sulfide in the sewage; organic high polymer flocculant is added inside the sewage to flocculate the substances such as sediment and oil inside the sewage; disinfectant is added inside for disinfection and for settlement separation; the sewage is rough filtered and then finely filtered so as to reach the quality standard of pouring water; the filtered water is photoelectrically sterilized, and then anti-sludge inhibitor is added into water for accomplishing anti-sludge inhibition after being photoelectrically sterilized and before entering into a clean water pot; and the water inside the clean water pot is used for back pouring. The invention solves the high sulfur content, high germ content and high mineralization oil pumping sewage treatment problem, and reaches the quality standard of back pouring water for low permeable oil filed, thereby protecting the environment and saving the water resource.
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products