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202results about How to "Meet water requirements" patented technology
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Method for carrying out desalination and zero-discharge processing of power plant desulphurization wastewater by adopting electrodialysis technology
ActiveCN104355473AMeet water requirementsImprove running stabilityGeneral water supply conservationDispersed particle separationChemical oxygen demandResource utilization
The invention relates to a method for carrying out desalination and zero-discharge processing of power plant desulphurization wastewater by adopting an electrodialysis technology. The method comprises the following steps: neutralizing, precipitating, coagulating and filtering the power plant desulphurization wastewater and removing CODs (Chemical Oxygen Demands), heavy metals, F-ions, gypsum, silicon dioxide, hydroxide of iron and aluminum and other insoluble particles in waste water; separating C1-ions and other monovalent ions in clear liquid from SO3<2->, SO4<2-> and other divalent ions through nanofiltration; desalinating and concentrating water produced by the nanofiltration by adopting a multistage countercurrent reverse electrodialysis method. The method has the advantages that the concentration of the Cl-ions in nanofiltration concentrated water and electrodialysis freshwater generated by the method is lower, and the nanofiltration concentrated water and the electrodialysis freshwater can be returned for flue gas desulfurization; the content of NaCl in a small amount of electrodialysis concentrated water produced reaches above 12 percent, the bivalent ions and other impurities are removed by nanofiltration, and the electrodialysis concentrated water is further evaporated and concentrated, so that chlorine-alkali industry electrolytes and NaCl salt can be obtained. Through the method, the zero-discharge treatment and the resource utilization of the desulfurization wastewater can be realized.
Owner:INST OF PROCESS ENG CHINESE ACAD OF SCI
Method for processing urban sewage deeply
ActiveCN1796314AChange sizeChange structureTreatment using aerobic processesWater/sewage treatment bu osmosis/dialysisFiltrationReverse osmosis
This invention is related to a process of disposing urban sewage, which comprise the steps of coagulate filtration, ozone oxidation, biological oxidation to dispose urban sewage, so that the residual undegradable organic substances, bacteria and virus in the second-class urban sewage can be removed and the water can be recycled. According to different usages of the recycled water, the process also comprises reverse osmosis or nanoscale filtration treatment to further remove the residual organic and inorganic substances in the water. The process is a combination of coagulate filtration, ozone oxidation, biological oxidation and reverse osmosis, designed to resolve such problems as urban sewage disposal and water recovery. The process can obtain high-quality recycled water with a low cost, showing high cost performance, which is important to resolving urban water depletion, raising the utilization rate of water resources, reducing environmental pollution and promoting sustainable development of the society.
Owner:北京国中科创环境科技有限责任公司
Method for treating container washing wastewater
InactiveCN101708935AReduce suspended solidsSave waterFatty/oily/floating substances removal devicesTreatment with anaerobic digestion processesOil separationReclaimed water
The invention relates to a method for treating container washing wastewater, comprising the pretreatment, physical and chemical treatment, biochemical treatment and advanced treatment, wherein the pretreatment comprises the step of filtering suspended matter and oil slick out by an oil separation tank and a collected water regulating reservoir so as to homogenize water quality and water quantity; the physical and chemical treatment comprises the step of removing oil substances and COD by an air flotation device; the biochemical treatment comprises the step of removing hazardous and noxious substances by an AF anaerobic filter chamber and an SBR reaction tank; and the advanced treatment comprises the steps of degrading organic matters and sterilizing by a moving bed biomembrane reactor and an ozone catalyzing oxidation pond, wherein the treated wastewater serves as washing water after reaching normal water reuse standards. The invention not only treats the container washing wastewater containing oil, poisonous substances and organic hazardous chemicals into clear water meeting the national discharging standards and discharging standards in Tianjin, but also reduces the content of the suspended matters and oils, and saves water resources because the clear water after being treated can serve as the reuse clear water.
Owner:TIANJIN TANGGU XINYU ENVIRONMENTAL PROTECTION TECH
Advanced oxidative coupling device and process for treating organic wastewater difficult to degrade
ActiveCN104787941AImprove removal efficiencyLow running costWater contaminantsWater/sewage treatment by electrochemical methodsElectrolysisMulti dimensional
The invention discloses an advanced oxidative coupling device and process for treating organic wastewater difficult to degrade. A main device body comprises an ozone oxidation-multi-dimensional electro-catalysis / microelectrolysis area, an ozone oxidation-microelectrolysis / Fenton area, a coagulation area and an inclined plate sedimentation area, wherein the ozone oxidation-multi-dimensional electro-catalysis / microelectrolysis area comprises a multi-dimensional electrolysis / microelectrolysis area at the upper part and an ozone oxidation area at the lower part; the ozone oxidation-microelectrolysis / Fenton area comprises a microelectrolysis / Fenton area at the upper part and an ozone oxidation area at the lower part. The device combines four levels of advanced oxidation systems, and electrocatalytic oxidation, ozone oxidation, Fenton oxidation and a microelectrolysis reaction are mutually coupled in function, so that an organic matter difficult to degrade is subjected to multi-level oxidation to realize complete oxidative cracking; when the device is used for treating the organic wastewater difficult to degrade, the yield and the production rate of *OH are increased, the liquid phase transfer process is accelerated, the overall current efficiency of the device is increased, operation expenses are saved, flexible regulation and control of a process unit are realized, and the device can be used for treating various kinds of organic wastewater difficult to degrade.
Owner:AEROSPACE KAITIAN ENVIRONMENTAL TECH CO LTD +1
Washing method for preventing reverse osmosis membrane or nano-filtration membrane from being polluted
ActiveCN103301753ALarge water supplyReduce operating pressureSemi-permeable membranesGeneral water supply conservationSocial benefitsWater desalination
The invention belongs to the technical field of seawater desalting and water treatment and relates to a washing method for preventing a reverse osmosis membrane or a nano-filtration membrane from being polluted. The washing method comprises the following steps of: firstly carrying out gas-water two-phase flow washing or simultaneous chemical washing; then extracting reverse osmosis concentrated water to wash the surface of the reverse osmosis membrane; discharging the reverse osmosis concentrated water through a concentrated water discharging valve; then, conveying pretreated water to a reverse osmosis module and displacing and discharging washing concentrated water on a reverse osmosis concentrated water side until the conductivity is recovered to 98% of the conductivity of the pretreated water; finally, closing a washing water discharging valve and opening the concentrated water discharging valve to recover normal operation of the reverse osmosis module; and sequentially washing other sets of reverse osmosis modules. The washing method disclosed by the invention is reliable in process, simple and convenient to operate, lower in energy consumption, good in economic benefits and social benefits, and environment-friendly.
Owner:OCEAN UNIV OF CHINA
Method and system for treating desulfurization wastewater in zero-discharge manner on basis of electrodialysis
InactiveCN106241972AReduce membrane fouling indexGuarantee long-term stable operationWater treatment parameter controlGeneral water supply conservationChemistryTreatment phases
Owner:SHENGFA ENVIRONMENT PROTECTION TECH XIAMEN CO LTD +1
Brackish water desalination device
InactiveCN101381126AMeet water requirementsIncrease permeation flux per unit areaGeneral water supply conservationWater/sewage treatment bu osmosis/dialysisUltrafiltrationFiltration
The invention discloses bitter saline water desalination equipment, which comprises a raw water tank, and a high pressure pump, a reverse osmosis membrane component and a drinking water tank which are sequentially connected. The bitter saline water desalination equipment further comprises a physical-chemical program controlled composite coupling preprocessor consisting of a raw water pump, a laminated filter and a program controlled ultrafiltration device which are sequentially connected. The bitter saline water desalination equipment has the advantages that the process of physical-chemical program controlled composite coupling preprocessing filtration is adopted so that the raw water with different types and different qualities can be pretreated to meet the inlet water requirement for the reverse osmosis membrane component, thus the inlet water quality for the reverse osmosis desalination is improved, the rubber body pollution and the microorganism pollution to membrane elements in the reverse osmosis membrane component are prevented, the unit area permeation flux of the reverse osmosis membrane component is improved, and the protection of the reverse osmosis membrane elements is increased; at the same time, the chemical cleaning frequency of the reverse osmosis membrane elements is reduced, the service life of the membrane elements is prolonged, the operating cost is reduced, and the production efficiency is improved.
Owner:陆惠民
Electronic electroplating wastewater recycling advanced treatment technology
InactiveCN101734815AImprove coagulation and sedimentation effectAvoid easy cloggingWaste water treatment from metallurgical processMultistage water/sewage treatmentMembrane technologyReverse osmosis
The invention relates to an electronic electroplating wastewater recycling advanced treatment technology. The technology uses a large amount of rinse-wastewater with heavy metals in the production process of the electronic electroplating industry as the main object, adopts a combined technology of pH adjustment-microfiltration membrane treatment-pretreatment-reverse osmosis membrane treatment, is mainly characterized by the joint application of DF membrane technology and RO membrane technology and can achieve the aim of reusing wastewater and reducing the emission of heavy metals; and the reuse water reaches the production demand of process water, thus saving the fresh water consumption of the industry, effectively reducing the production cost of the industry, solving the pollution problem of heavy metals, increasing the clean production level of the electronic electroplating industry and having remarkable social environmental and economic benefits.
Owner:苏州市环境工程有限责任公司
Water temperature automatic control circuit for temperature constant water heater
InactiveCN103743114AEasy to operateQuick water temperature adjustmentFluid heatersPhysicsAutomatic control
The invention discloses a water temperature automatic control circuit for a temperature constant water heater. The water temperature automatic control circuit for the temperature constant water heater comprises an electric heater power supply circuit, a voltage transformation rectifying voltage stabilizing circuit, a display circuit, a mini-type electric water valve circuit, a trigger circuit , a microcomputer chip and a control signal transmission circuit. According to the water temperature automatic control circuit for the temperature constant water heater, the microcomputer chip control technology is adopted, the output power can be adjusted at any time according to dynamic data of the in-out water temperature and the setting temperature, and the water volume is adjusted through a mini-type water valve motor, so that the effect of enabling the effluent water temperature to be constant at any time is achieved and even in winter, when the water volume is large and the water temperature is low, the water heater can automatically adjust the water volume to achieve constant temperature and achieve the effect of being good in utilization comfort of bath and sanitary water.
Owner:LIUZHOU VOCATIONAL & TECHN COLLEGE
Underground micro-irrigation device
InactiveCN102907298AMeet water requirementsIncrease productionWatering devicesCultivating equipmentsWater savingSubsurface irrigation
The invention relates to an underground micro-irrigation device, and belongs to the technical field of agricultural water-saving irrigation. The underground micro-irrigation device disclosed by the invention comprises a groundbreaking cone and an outer tube, wherein the groundbreaking cone is arranged at the lower end of the outer tube, an advance-retreat rotating rod, a water inlet pipe, a fixator, a soil scraper and an emitter are arranged in the outer tube, the fixator is arranged in the middle of the outer tube, the advance-retreat rotating rod and the water inlet pipe are fixed in the outer tube through the fixator, the soil scraper is arranged on the lower side inside the outer tube, a sliding rail is arranged at the lower part of the outer tube, and the emitter is arranged on the sliding rail. The underground micro-irrigation device disclosed by the invention can satisfy the water demands of crops; due to adoption of underground irrigation, water can be saved, so that the root system of a crop can achieve the best water uptake effect, and the utilization efficiency of water can be improved; the device can be inserted and drawn out randomly as required, and does not need to be pre-buried underground, the position and depth of irrigation can be adjusted, and the emitter has small possibility of being jammed; and the device is convenient to carry, easy to install, good in water-saving effect, and easy to popularize and apply.
Owner:KUNMING UNIV OF SCI & TECH
Intelligent temperature-controlling water supply system of water pump
InactiveCN101294575AStable outlet water temperatureBasic water temperatureTemperature control using electric meansPump controlWater supply networkThermal energy
The invention relates to a water pump intelligent temperature-control water supply system which ensures a basically stable water temperature of domestic water, heating water and pipe internal circulating water and saves water resource and heat energy. The system comprises a water pump, a power supply control circuit, a central control unit and a temperature sensor; wherein, an inlet of the water pump is connected with a hot water tank, an outlet of the water pump is connected with an inlet end of a water return pipe, and an outlet end of the water return pipe is connected with the hot water tank; the temperature sensor is used for detecting the temperature on the water return pipe; the central control unit is used for turning on or shutting down the water pump according to the temperature gap between the temperature measured by the temperature senor and the preset temperature; when the measured temperature is 0.5 to 3 DEG C lower than the preset temperature, the water pump is turned on; and when the measured temperature is 0.5 to 3 DEG C higher than the preset temperature, the water pump is shut down. In addition, in different periods, the central control unit turns on or shuts down the water pump through the power supply control circuit according to the temperature gap between the temperature measured by the temperature sensor and the corresponding different preset temperature.
Owner:ZHEJIANG MENRED COMFORT SYST
Improved method of reclaimed water treatment technology for effectively prolonging service lifetime of film
InactiveCN101274219ASimple processReduce processing stepsSemi-permeable membranesWater/sewage treatment by magnetic/electric fieldsReclaimed waterWater quality
The invention relates to a novel improved process for intermediate water reuse. Aiming at the shortages of traditional process in pre-processing process of film separation technique, the improved process adopts secondary magnetic separation technique and corresponding magnetic filter devices to replace traditional filter process and devices, and adds magnetic seeds and flocculant, which are taken as the pre-processing technique and devices of the film separation technique. Contaminations in wastewater pre-disposed by the improved process can be basically removed, the water quality requirement of film separation water intake is complied with, the miro-filtration, ultra-filtration, nano-filtration and pressure of reverse osmosis film are greatly lightened, the service life of the film is prolonged, and the cost of intermediate water reuse disposal is reduced.
Owner:郭玉同
View tower type device for water aeration and biological purification, and purification method
InactiveCN103833138AIncrease dissolved oxygen concentrationImprove processing efficiencyBiological water/sewage treatmentConstructed wetlandPurification methods
The invention relates to a view tower type device for water aeration and biological purification. The structure of the view tower type device is a tower type structure, and the device comprises a water outlet 1, a spill pit 2 and an outlet channel 5, wherein the water outlet 1 is formed at the center of the spill pit 2, and the outlet channel 5 is communicated with the water outlet 1; a plurality of functional layers are arranged to surround the spill pit 2, each functional layer comprises a biological ball purification region 3 and a landscape aquatic plant region 4, and the landscape aquatic plant region 4 is arranged to surround the biological ball purification region, one end of the spill pit 2 is connected with a water duct 7, and a water pump 6 is mounted at the other end of the water duct 7. The view tower type device has the advantages that the dissolved oxygen concentration in sewage is improved by virtue of free wall fall, and a biological enhanced treatment function is added so that the treatment efficiency of constructed wetlands can be improved obviously and the water quality of the sewage plant effluent can be improved. Compared with existing techniques, the landscape functions of the constructed wetlands are not damaged, and the landscape effect of the constructed wetlands and the sewage plants also are added. In addition, the view tower type device for water aeration and biological purification is simple in structure, low in construction cost and convenient to repair.
Owner:HOHAI UNIV
Pretreatment method for industrial wastewater of pyrethroid
InactiveCN102849878AAdjust the reaction rateStable and effective processing effectWater/sewage treatmentMultistage water/sewage treatmentPretreatment methodChemical oxygen demand
The invention discloses a pretreatment method for industrial wastewater of pyrethroid. The pretreatment method is characterized by comprising the following steps of: (1) carrying out first-grade treatment by a ferric-carbon microelectrolysis technology to remove a part of pollutant in industrial wastewater; (2) carrying out second-grade oxydative degradation treatment on the micro-electrolyzed industrial wastewater by a diamond electro-catalysis technology; and (3) carrying out third-grade treatment on the wastewater which is electrically catalyzed by diamond by the ferric-carbon microelectrolysis technology. The method is very good in treatment effect of various pesticide wastewaters, and can meet the water inflowing requirement of the existing biochemical wastewater treatment (COD (chemical oxygen demand) is less than 1000mg / L).
Owner:NANJING AGRICULTURAL UNIVERSITY
Cleaning method of ultrafiltration membrane in sea water desalination by whole membrane technology
ActiveCN103212300ALarge water supplyReduce operating pressureSemi-permeable membranesGeneral water supply conservationWater desalinationUltrafiltration
The invention belongs to the technical field of sea water desalination and water treatment, and relates to a cleaning method of an ultrafiltration membrane in sea water desalination by the whole membrane technology. The cleaning method comprises the following steps of: transporting pre-treated sea water to a raw water inlet of an ultrafiltration device; mixing with ultrafiltration circulating concentrated water transported by an ultrafiltration circulating pump, wherein the mixture enters into the ultrafiltration device to be filtered to obtain ultrafiltration water entering into a closed ultrafiltration water buffer tank; then, transporting the ultrafiltration water by a low pressure pump, wherein one part of the water flowing through a security filter is pressurized by a high pressure pump and enters into a nanofiltration / reverse osmosis device through a check valve, while the residual water enters into an energy recovering device and exchanges energy with concentrated water of the nanofiltration / reverse osmosis device, then is transported to the nanofiltration / reverse osmosis device through the pressurizing pump to prepare nanofiltration / reverse osmosis water; feeding nanofiltration / reverse osmosis water after energy exchange into an ultrafiltration cleaning water tank, and discharging residual concentrated water through an overflow opening on the upper part of the ultrafiltration cleaning water tank. The cleaning method is reliable in process, simple and convenient to operate, lower in energy consumption, good in economic and social benefits and environment-friendly.
Owner:OCEAN UNIV OF CHINA
Control method and control device for air conditioner, and computer readable storage medium
ActiveCN108592319AMeet water requirementsExtension of timeMechanical apparatusLighting and heating apparatusWater useEngineering
The invention discloses a control method for an air conditioner. The air conditioner comprises a humidifying device and a water tank which communicates with the humidifying device; the water tank is used for supplying water to the humidifying device; a water level detecting device for detecting the water level of the water tank is arranged inside the water tank; the control method for the air conditioner comprises the following steps of: detecting the water level of the water tank in real time or periodically; judging whether the detected water level of the water tank is lower than a preset water level; and carrying out water-lack protection operation if the detected water level of the water tank is lower than the preset water level. The invention further discloses a control device for theair conditioner and a computer storage medium. According to the control method and the control device disclosed by the invention, the water-lack protection operation such as reduction of water supplyamount from the water tank to the humidifying device is implemented by virtue of the air conditioner so that the water use-out time of the water tank is prolonged, and enough time is left for water replenishment of the water tank; or the water-lack protection operation such as increment of water amount of the water tank is implemented so that when the water level in the water tank is too low, water is replenished to meet the water use requirements of the humidifying device, and thus the humidifying device is protected.
Owner:GD MIDEA AIR-CONDITIONING EQUIP CO LTD
Refractory organic wastewater treatment method capable of obviously improving biodegradability of organic wastewater
InactiveCN102205998AImprove biodegradabilityMeet water requirementsWater contaminantsWater/sewage treatment by magnetic/electric fieldsDielectric barrier dischargeWater quality
The invention discloses a refractory organic wastewater treatment method capable of obviously improving the biodegradability of organic wastewater. The method comprises the following step of: placing refractory organic wastewater into a low-temperature plasma environment for treatment so as to improve the biodegradability of the organic wastewater, wherein the low-temperature plasma environment is produced by a dielectric barrier discharging low-temperature plasma device or a double-channel discharging plasma device. By the treatment method, the biodegradability of the refractory organic wastewater can be fast improved (within 10 minutes), and the refractory organic wastewater can meet the requirements (the ratio of biochemical oxygen demand to chemical oxygen demand is more than or equal to 0.3) on inflow water quality in a biochemical method.
Owner:XI AN JIAOTONG UNIV
Lead-zinc smelting wastewater treatment method
InactiveCN106007074AReduce dosageReduce corrosionSludge treatmentWater contaminantsInitial treatmentFiltration membrane
The invention provides a lead-zinc smelting wastewater treatment method, which comprises the following steps: A, initial treatment of inflow; B, primary flocculation with an iron-based flocculating agent; C, secondary flocculation with polyacrylamide; D, filtration; E, adsorption with activated carbon; F, PH value regulation; G, membrane treatment: pumping water in a second regulation tank into a micro-filtration membrane device in a water pump pressurization form, pumping clear liquid filtered by the micro-filtration membrane device into a nanofiltration membrane device in the water pump pressurization form, pumping clear liquid filtered by the nanofiltration membrane device into a reverse osmosis device in the water pump pressurization form, and discharging or recycling clear liquid obtained by reverse osmosis of the reverse osmosis device after the clear liquid is detected to be qualified. According to the method, the iron-based flocculating agent and the polyacrylamide are adopted for performing flocculation twice, so that complete flocculation precipitation can be ensured; a filtration method combining micro-filtration, nanofiltration and reverse osmosis is adopted to deeply remove heavy metal ions such as lead and zinc ions in wastewater layer by layer, so that good removal effects are achieved.
Owner:SCI RES ACADEMY OF GUANGXI ENVIRONMENTAL PROTECTION
Method for preventing and controlling eutrophic water bloom in drinking water source
InactiveCN1858008AMeet water requirementsImprove water qualityEnergy based wastewater treatmentBiological water/sewage treatmentWater sourceWater quality
The method of preventing and controlling eutrophic water bloom in drinking water source combines the physical shading technology and ecological float island technology and includes separating the drinking water source site into several areas, initially purifying polluted water with ecological float island to eliminate large grain suspended matter, adsorb partial nitride and phosphide and reduce wind wave; leading resource water to ecological shading area with the first ecological permeating dam and eliminating partial nitride and phosphide with the hygrophyte in the dam; eliminating harmful algae in the ecological shading area and eliminating residual nitride and phosphide with the floating aquatic plant; leading the purified water with the second ecological permeating dam to the water quality stabilizing area; and conditioning and stabilizing water quality in natural water area to obtain high quality resource water.
Owner:SHANGHAI JIAO TONG UNIV
Water turbine
InactiveCN105370478AAuto excludeSignificant progressHydro energy generationSafety/regulatory devicesWater turbineWater flow
The invention relates to an impact type water turbine in the technical field of hydraulic electrogenerating. The water turbine is mainly composed of an ejection device and a rotation device, wherein the ejection device is mainly composed of a base plate, a top plate, lateral plates on the two sides and components such as an ejection opening formed by a rotary valve hinged to the water outlet end of the top plate or the base plate and a transmission component of the rotary valve; and the rotation device is formed by components such as a wheel disc or hub arranged on a main shaft, a plurality of blades which are arranged on the outer surface of the wheel disc or hub, the shape of the surface between the two sides is a groove, outer end guide plates arranged on the outer end faces of the groove-shaped blades, inner end guide plates arranged on the inner end faces of the groove-shaped blades and the like, wherein the shape of the surface between the two sides of each blade is in a groove shape. By means of the water turbine, the water flow pressure energy can be efficiently converted into rotary mechanical energy, and the water turbine can be suitable for low-water-head large-flow water energy resources.
Owner:黄国宏
Novel water purifying plant and water purifying method
The invention discloses a novel water purifying plant and a water purifying method. The novel water purifying plant comprises a water storage body, a water processing assembly arranged in the water storage body, a purified water storage assembly and a limiting mechanism, wherein the limiting mechanism is arranged on the water storage body or is arranged inside the water storage body; the water processing assembly consists of a primary filter assembly the lower part of which is provided with a water inlet and a functional filter material assembly communicated with the inside of the primary filter assembly; and the functional filter material assembly is provided with a secondary purified water inlet connected with a primary filtered water outlet of the primary filter assembly and a secondary purified water outlet connected with the purified water storage assembly. The water purifying method comprises the following steps: subsiding a pressure generated in the process of discharging water in the water by the water processing assembly; and making the water flow through the primary filter assembly and the functional filter material assembly from top to bottom to be purified and finally flow into the purified water storage assembly. The novel water purifying plant has the advantages of simple structure, convenient use, electricity consumption prevention, no pollution, large flux, low cost and wide application range, can effectively purify various different water qualities and can realize the using requirement according to the different water qualities.
Owner:XIAN ZHONGSHUIRUN NEW MATERIAL TECH
Pretreatment all-aerobic denitrification technology process and integrated device for of livestock and poultry breeding wastewater
ActiveCN109368938AFast growth rateReduce startup timeTreatment using aerobic processesWater contaminantsWater qualityTemperature resistance
The invention relates to a pretreatment all-aerobic denitrification technology process and an integrated device for of livestock and poultry breeding wastewater. According to the pretreatment all-aerobic denitrification technologyprocess, high-temperature-resistance COD, high-temperature-resistance ammonia nitrogen, and low-temperature-resistance heterotrophic nitrification-aerobic denitrificationfunctional bacteria with the high denitrification efficiency are adopted for biofilm culturing of a bacteria solution, starting of the integrated device is completed, the device starting period is shortened, and the conditions are created for enrichment of the functional bacteria. According to the method, main pollutants in wastewater raw water are subjected to pretreatment pretreated from the source of the breeding wastewater, and as for the treated livestock and poultry breeding wastewater, the water quality can meet the inflow water quality requirements (the COD is less than 2000 mg / L, andNH4<+>-N is less than 200 mg / L) of a subsequent conventional water treatment technologyprocess.
Owner:重庆士继生态环境科技有限公司
Landscape water body, riverway water and raw water processed polymer fibre high speed filtering device
InactiveCN101259338AImprove filtration efficiencyIncrease contact areaLoose filtering material filtersGravity filtersFiberSeparation technology
The invention discloses a high-speed filtering device of novel polymeric fiber for the treatment of landscape waters, rivers and raw water. The invention is mainly used in the treatment of indoor, outdoor and other landscape waters, and is also used in the treatment of rivers and raw water. The device can filter water continuously and lastingly with high speed and efficiency, and can be used repeatedly. The invention adopts the novel polymeric fiber membrane separation technique, and mainly treats the suspending solids, flocculate, particle matters and other materials which are difficult to break down in the water body. By continuous treatment and after certain cycle period, the water body treated is changed from muddy into clear, and better meets the requirements of landscape water or the standards of raw water effluent.
Owner:SHANGHAI NAN YANG MODEL HIGH SCHOOL +1
Textile dyeing wastewater treatment and reclamation technique
ActiveCN104609680AHigh concentration of pollutantsHigh chromaMultistage water/sewage treatmentAfter treatmentPrecipitation
The invention discloses a textile dyeing wastewater treatment and reclamation technique. The invention aims to provide a textile dyeing wastewater treatment and reclamation technique. According to the characteristics of textile dyeing wastewater, the existing biochemical and physicochemical treatment systems are reasonably combined to form a textile dyeing wastewater treatment technique which has the advantages of low cost, high treatment efficiency and stable system operation. The technique comprises the steps of pretreatment, secondary biochemical treatment and after-treatment. Floatation, CBR, ASB, precipitation, floatation, ozone and other processes are performed for treatment, so that the treated wastewater can finally be discharged after reaching the standard and satisfy the reclamation standard. The technique is suitable for textile dyeing enterprises with restricted water supply or restricted drainage capacity, and can implement energy saving and emission reduction for the enterprises and lower the operating cost.
Owner:浙江巨能环境工程有限公司
Boiler make-up water treatment system and treatment method in power station
InactiveCN104150649AReduce power consumptionReduce investmentMultistage water/sewage treatmentPower stationWater treatment system
The invention discloses a boiler make-up water treatment system and method in a power station. The boiler make-up water treatment system comprises a reverse osmosis pretreatment device, a first-stage reverse osmosis device, an EDI device, a demineralized water tank and a membrane degassing device, wherein the membrane degassing device is connected with the first-stage reverse osmosis device, the back end of the membrane degassing device is connected with an intermediate water tank, the back end of the intermediate water tank is connected with a reverse osmosis water production pump, the front end of the EDI device is connected with the reverse osmosis water production pump, the back end of the EDI device is connected with the demineralized water tank, the back end of the reverse osmosis pretreatment device sequentially passes through a pipeline mixer, a security filter and a high-pressure pump to be connected with the first-stage reverse osmosis device, the front end of the reverse osmosis pretreatment device is connected with a raw water pump, the membrane degassing device is connected with a vacuum pump, the EDI device is connected with a washing backwater pipeline and a clear water supply pipeline and valve switches are arranged on the pipelines. The boiler make-up water treatment system disclosed by the invention has the advantages of low investment, small land occupation, low power consumption and low production cost, is capable of reducing the power consumption and the investment of the water treatment system and can improve economic benefits.
Owner:SHANDONG HUANNENG DESIGN INST
Intelligent flowerpot
InactiveCN104521609ARealize automatic irrigationRealization of timed irrigationSelf-acting watering devicesWatering devicesElectric machineControl system
The invention relates to an intelligent flowerpot which comprises a flowerpot body, a control system, a user interaction system, an irrigation system, a rotating system and a power supply device. The control system comprises a processor, a memory device and a peripheral circuit. The user interaction system comprises a display module and a key module. The irrigation system comprises a soil humidity detecting module, an electromagnetic valve and a hose. The rotating system comprises a flowerpot tray, a flowerpot base and a direct current speed reducing motor module. The power supply device comprises a battery pack and a voltage conversion module. The soil humidity detecting module is buried into soil to measure a current soil humidity value, and the processor controls opening and closing of the electromagnetic valve according to the value to achieve automatic irrigation. The flowerpot tray is arranged on the flowerpot base and connected with a rotating shaft of a direct current speed reducing motor. The direct current speed reducing motor is driven by a motor driving module. The processor controls the rotating speed and the direction to achieve automatic rotating of the flowerpot.
Owner:SHANDONG JIAOTONG UNIV
High acid crude oil electric desalting wastewater treatment method
ActiveCN103102035AReduce environmental risksSmall footprintGeneral water supply conservationMultistage water/sewage treatmentChemistryPetroleum
The present invention discloses a high acid crude oil electric desalting wastewater treatment method, which comprises that high acid crude oil electric desalting wastewater is sequentially subjected to an oil and suspended solid removing treatment, a sequencing batch reactor activated sludge treatment (SBR), a flocculation treatment, a Fenton oxidation treatment and a membrane bioreactor (MBR) treatment, wherein SBR is mainly provided for removing BOD and ammonia nitrogen, the flocculation treatment and the Fenton oxidation treatment are mainly provided for treating naphthenic acid and other organic matters difficultly degraded by SBR, and MBR is provided for deep treatment of residual dissolved organic matters and suspended solids after the Fenton oxidation treatment. According to the present invention, COD in the treated effluent is less than or equal to 40 mg / L, ammonia nitrogen in the treated effluent is less than or equal to 2 mg / L, petroleum in the treated effluent is less than or equal to 2 mg / L, and turbidity is less than 1 NTU, such that the stringent local discharging standard can be met, and the effluent can be used as influent for reverse osmosis constant depth reuse treatments. The method is suitable for standard discharging treatments of electric desalting wastewater from high acid crude oil processing or polymer flooding oil field wastewater and various naphthenic acid-containing wastewater.
Owner:CHINA PETROLEUM & CHEM CORP +1
Method for desalting sewage by using membrane separation technology
InactiveCN103663769AReduce the effects of foulingConcentrated water with high solid contentWater/sewage treatment bu osmosis/dialysisMultistage water/sewage treatmentSeparation technologyCross-flow filtration
The invention discloses a method for desalting sewage by using a membrane separation technology. The method comprises the following steps: (1) adding sewage into a stirred reaction tank, adding sodium hydroxide or calcium hydroxide, adjusting the pH value to 9.0-11.5, and carrying out stirred reaction for 40-110min; (2) carrying out hardness removal pretreatment on a mixed solution after reaction by using a microfiltration membrane, wherein the microfiltration membrane has the aperture of 0.1-0.2mum, and dead end or cross flow filtration is used as a filtration way; (3) enabling the pretreated concentrated water to enter a concentration tank or residue pond; (4) pressurizing the pretreated production water, and desalting the pretreated production water in a reverse osmosis system or nanofiltration system. The reverse osmosis or pretreatment of a nanofiltration membrane is realized through hardness removal by using the microfiltration membrane, the production water is good in quality and good in hardness removal effect, and the reverse osmosis or scaling pollution of a nanofiltraiton membrane is reduced; the microfiltrated concentrated water is high in suspended matter content and convenient for dehydration treatment; the reverse osmosis or nanofiltration can be carried out under slightly alkaline conditions, so that pollution form organic matters and microorganisms can be reduced.
Owner:CHINA PETROLEUM & CHEM CORP +1
River water filtration and purification process
ActiveCN102963998AMeet water requirementsReduce spendingMultistage water/sewage treatmentWater/sewage treatment by flotationAluminium chlorohydrateFiltration
The invention aims to provide a river water filtration and purification process that can remove impurities in river water. And the water purified by the process cannot generate unfavorable effects in later stage use by dyeing and finishing enterprises. A flotation tank is added in front of a coagulation precipitation tank. The river water entering the flotation tank is first mixed with polyaluminum chloride, and then enters the flotation tank. The water obtained by the process can effectively satisfy the requirements of water needed by dyeing and finishing enterprises in production, so that the water expenditure of the enterprises can be substantially reduced. Besides, application of the water to product dyeing has the advantages of good dyeing effect, uniform dyeing and the like.
Owner:ZHEJIANG DANENG TEXTILE PRINTING & DYEING
Coal mining area wastewater treatment recycling system
InactiveCN103373772ARealize comprehensive utilizationMeet water requirementsWaste water treatment from quariesWater/sewage treatment by irradiationWastewaterSewage
The invention discloses a coal mining area wastewater treatment recycling system, belonging to the technical field of water treatment and relating to a system for treating mine water. Shortcomings still exist in the mine water treatment recycling process, and wastewater in the mining area cannot be completely treated and recycled. The coal mining area wastewater treatment recycling system is characterized by comprising a clean mine water recycling subsystem, a high salinity mine water treatment recycling subsystem, an acidity mine water recycling subsystem, a suspended matter containing mine water recycling subsystem, a coal washing wastewater recycling subsystem and a domestic wastewater treatment recycling subsystem. The recycling subsystems are connected with each other and complement each other, so that production wastewater and domestic wastewater in the coal mining area are recycled, and the technical effect of the zero release of wastewater in the coal mining area is achieved. The coal mining area wastewater treatment recycling system is simple in structure. The construction and operating expenses of a part of facilities for wastewater treatment are reduced.
Owner:周凌云 +3
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