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31results about How to "Stable water quality up to standard" patented technology
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Treatment method for garbage leachate membrane concentrated solution
InactiveCN104496079AEasy to handleOrganic matter such as humus that is easy to process and recover has been safely and effectivelyMultistage water/sewage treatmentExisting TreatmentReverse osmosis
The invention discloses a treatment method for a garbage leachate membrane concentrated solution. The treatment method comprises the following steps: feeding the garbage leachate membrane concentrated solution into a membrane separating device to remove degradation-resistant organic substances such as humic acid in the concentrated solution, mixing the outlet water of the concentrated solution with a reverse osmosis concentrated solution, then removing scaling ions such as Ca<2+> and Mg<2+> and other inorganic substances in the concentrated solution by softening, precipitating and filtering, introducing the outlet water into the reverse osmosis membrane to further concentrate, and realizing up-to-standard release of produced water; and finally, spraying back the concentrated water back to an incinerator for incineration, evaporative crystallization or outward processing. The treatment method can be used for realizing efficient treatment of the garbage leachate membrane concentrated solution, and has the advantages of being stable in operation, high in treatment efficiency, low in operation cost, convenient to maintain and manage, and the like in comparison with the existing treatment method for the garbage leachate membrane concentrated solution.
Owner:BEIJING SOUND ENVIRONMENTAL ENG +1
Adaptive predictive control method for sewage treatment process based on integrated instant learning
ActiveCN110320806ATroubleshoot online update issuesOvercome limitationsAdaptive controlSelf adaptiveInput/output
The invention relates to the technical field of sewage treatment process control, and provides to an adaptive predictive control method for a sewage treatment process based on integrated instant learning. The method comprises the following steps of firstly determining the controlled quantity and control quantity, and collecting historical data of the sewage treatment process and constructing a historical database; then constructing a query regression vector, selecting an optimal similar learning subset under different similarity indexes, processing abnormal data, training to obtain a pluralityof groups of prediction models, and obtaining an integrated prediction model through integrated weighting; and calculating the reference trajectory, constructing an optimized control performance index, and obtaining the optimal control quantity; and finally, sending the optimal control quantity to a PLC system by a host computer to adjust a fifth zone oxygen volume regulating valve, collecting the latest group of measurement data, and updating the historical database. According to the adaptive predictive control method for the sewage treatment process based on the integrated instant learningprovided by the invention, adaptive stable and accurate control can be carried out on the sewage treatment process, the utilization rate of off-line and on-line input / output measurement data is improved, and the influence of input and output interferences and the abnormal data on control is effectively inhibited.
Owner:NORTHEASTERN UNIV
Dissolved air flotation sewage processing device with self-cleaning function
ActiveCN104829007AImplement automatic cleanupStable water quality up to standardMultistage water/sewage treatmentWater/sewage treatment by flotationAutomatic controlSlag
The invention discloses a dissolved air floatation sewage processing device with a self-cleaning function, and belongs to the technical field of industrial sewage processing devices. The provided sewage processing device comprises an underframe, a coagulation reaction area, a dissolved air pump, a gas / liquid separating tank, a contact reaction area, a scum separating area, a slag scraping device, and a clean water area, wherein the dissolved air pump, gas / liquid separating tank, contact reaction area, scum separating area, slag scraping device, and clean water area are arranged on the under frame and communicated with each other through corresponding parts. The sewage processing device is characterized in that the gas / liquid separating tank is connected to the scum separating area through a cleaning electromagnet valve and a cleaning releaser, the cleaning releaser is composed of releasing pipes, which are evenly arranged in the scum separating area, each releasing pipe is provided with a small hole, the cleaning releaser is connected to the gas / liquid separating tank through the cleaning electromagnet valve, and a perforated water collecting pipe is arranged above the cleaning releaser, and is connected to the clean water area through a clean water electromagnet valve. The provided dissolved air flotation sewage processing device can automatically remove settled scum left in an air flotation device by controlling the related electromagnetic valves and cleaning release through an automatic control technology so as to guarantee the water quality of discharged water, moreover, the structure is simple, thus the device is easy to promote, and a reliable sewage treatment method is provided for the small and micro enterprises.
Owner:浙江美纳环保科技有限公司
Integrated device for processing domestic sewage in small towns
InactiveCN102603115ALow running costAchieve emission standardsMultistage water/sewage treatmentWater/sewage treatment by neutralisationSludgeDecomposition
The invention relates to the technical field of sewage treatment equipment, in particular to an integrated device for processing domestic sewage in small towns. The integrated device comprises a grilled channel, an adjusting pond, a hydrolytic acidification pond, a contact oxidization pond, a coagulation pond, an oblique pipe sedimentation pond, a sterilization pond and a flow groove, which are sequentially connected with one another. Large-block impurities in waste water can be removed through the grilled channel, then the waste water is discharged into the adjusting pond and the hydrolytic acidification pond, pollutants in the waste water can be intercepted by a sludge bed of the hydrolytic acidification pond, macromolecular and complicated organic substances are decomposed into low molecular and simple organic substances through absorption, assimilation and decomposition, the sewage enters the contact oxidization pond after being discharged from the hydrolytic acidification pond, the pollutants in the sewage can be assimilated and decomposed under an aerobic condition to finally generate carbon dioxide (CO2) and water (H2O), and finally the domestic sewage can be discharged by reaching the national standard through the coagulation pond, the oblique pipe sedimentation pond, the sterilization pond and the flow groove; and the water quality is stable and can reach the standard, the processing effect is good, the running cost is low, and the adaptability to the variation of the quality and quantity of the sewage is strong.
Owner:DONGGUAN DONGRI WATER TREATMENT TECH
Spherical hydroxyapatite fluoride-removing material regenerated powder and application thereof
InactiveCN103349974AReduce the cost of defluoridationEnsure water quality safetyOther chemical processesWater contaminantsParticulatesWastewater
The invention provides spherical hydroxyapatite fluoride-removing material regenerated powder comprising natural particles and inorganic aluminum salt. The invention also provides a method for removing fluoride from underground water by using the regenerated powder. The spherical hydroxyapatite fluoride-removing material regenerated powder provided by the invention has the advantages of scientific formula, wide raw material source, and low cost. An underground water fluoride-removing method provided by the invention has the advantages of simple technology, convenient application, low cost, good fluoride-removing effect, high outlet water quality, no need of periodic regeneration, low wastewater production, low processing cost, and good popularization and application prospect.
Owner:HOHAI UNIV +1
High-efficiency oily sewage treatment device and method
PendingCN106746048ASave spaceImprove air flotation separation effectWaste water treatment from quariesWater/sewage treatment by centrifugal separationIonHeavy metals
The invention provides a high-efficiency oily sewage treatment method, comprising the following steps: pressurizing to-be-treated oily sewage, and then delivering the pressurized oily sewage into an electric flocculation tank so as to generate a polynuclear hydroxy complex, hydroxide floccules and hydrogen gas bubbles; adding gas-dissolved water into the oily sewage after electrolysis to enable the polynuclear hydroxy complex to adsorb the floccules, sediment grains and large-particle oil drops in the sewage; wrapping the oil drops and the sediment grains with micro-bubbles and hydrogen gas bubbles in the gas-dissolved water; performing cyclone separation to remove the floccules, the large sediment grains and the oil drops; and performing flotation separation on the treated sewage in a full-water low-pressure state to remove the remaining polynuclear hydroxy complex-oil drops, hydroxide floccules-suspended particles, micro-bubbles-oil drops and sediment impurities, so as to obtain purified water. The device and the method provided by the invention can be used for removing oil drops, sediments, colloids, dissolved organic matters and heavy metal ions in sewage at the same time, bacteria and viruses in water can also be killed without adding chemical reagents, and the water quality after treatment is stable and reaches the standards.
Owner:XIAN SITAN ENVIRONMENT TECH CO LTD
MANWMB (micro nano aeration wastewater microbial bioremediation) system for black and odorous river control and control method thereof
ActiveCN105585138AStable water quality up to standardImprove purification efficiencyWater treatment compoundsBiological water/sewage treatmentMicro nanoWater quality
The invention provides a MANWMB (micro nano aeration wastewater microbial bioremediation) system for black and odorous river control and a control method thereof. The MANWMB system mainly comprises a river, a first reaction area, a second reaction area, a third reaction area, a fourth reaction area, a micro nano plug-flow aerator, a microbial carrier, a microbial carrier fixing rope, a microbial carrier fixing column, a stirrer, a microorganism adding device, an online monitoring system, photovoltaic power generation equipment and the like. By establishing different reaction areas, installing filler and adding microbial strains in the river, enough dissolved oxygen is provided for the river under the action of the micro nano plug-flow aerator, and the water quality is monitored in real time through the online monitoring system to finally guarantee the purification and remediation of the black and odorous river. Compared with the existing river control technology, the system provided by the invention is compact in structure and reasonable in layout, and related technological parameters can be adjusted according to the water quality so as to guarantee up-to-standard water quality. Meanwhile, since no chemical agent is used in the whole control process, the MANWMB system is an environment-friendly and efficient novel black and odorous river remediation technology.
Owner:裕英(北京)生物科技有限公司
Flexible circuit board production wastewater discharge process
InactiveCN105347548AProcessing power impactSimple processWaste water treatment from metallurgical processWater/sewage treatmentFlexible circuitsWastewater
The invention discloses a flexible circuit board production wastewater discharge process, which includes chemical precipitation, membrane solid-liquid separation, RO membrane reuse, wastewater detection and other steps. The invention involves more than two groups of collecting troughs, treated wastewater is stored in the discharge water collecting troughs and is discharged after it is detected to be up to standard, and if not up to standard, sewage in the tank is lifted to a retreatment system to be treated to meet the standard and is then discharged. The process provided by the invention has the advantages of simple technology, low cost, and stable and up-to-standard water quality.
Owner:XIAMEN HONGXIN ELECTRON TECH
Aerobic treatment method of deep-pool and shallow artificial wetland wastewater
ActiveCN104828932AFully oxygenatedFull reoxygenationTreatment using aerobic processesSustainable biological treatmentConstructed wetlandPorosity
The invention relates to an aerobic treatment method of deep-pool and shallow artificial wetland wastewater. According to the method, oxygenation is realized in a wastewater falling process; reoxygenation is carried out by converting potential energy into kinetic energy; degradation of aerobic microorganisms is carried out by utilizing a microorganism growth environment of bottom substrates of a deep pool; adsorption removal is carried out by utilizing actions of substrates in different layers of an artificial wetland; and wastewater deep treatment is realized by utilizing the absorption action of large-biomass plants. A deep-pool and shallow artificial wetland disclosed by the invention comprises the deep pool, a shallow, an S-shaped waterproof wall body and the substrates; the S-shaped waterproof wall body is positioned between the deep pool and the shallow; biological ceramsite, which is hard in substrate, large in particle diameter and high in porosity, is adopted as the substrates at the bottom of the deep pool; and the shallow is constructed by different substrates and plants at the front end of the deep pool. By means of aerobic treatment of the deep-pool and shallow artificial wetland wastewater, the wastewater treatment operation cost can be obviously reduced; the wastewater treatment efficiency and the wastewater treatment effect are increased; and organic unification of aerobic treatment and ecological treatment is realized.
Owner:ENERGY RES INST OF JIANGXI ACAD OF SCI
Method and device for treating polluted acid containing thallium and arsenic
PendingCN111635033AEfficient removalLess slagWater treatment parameter controlWater treatment compoundsSulfateThallium
The invention discloses a method for treating polluted acid containing thallium and arsenic. The method comprises the following steps: S1, adding the polluted acid into limestone for neutralization, and controlling the pH value of the filtered effluent to be 2-4; S2, sending the effluent obtained in step S1 into a first reaction tank of a first-stage oxidation section, adding ferrous sulfate intothe first reaction tank, sending the effluent into a second reaction tank of the first-stage oxidation section, and adding hydrogen peroxide into the second reaction tank; S3, sending the effluent ofthe first-stage oxidation section and the second reaction tank into a first-stage neutralizing tank, adding lime milk, and controlling the pH value of the filtered effluent to 8.5-9.5; and S4, sendingthe first-stage neutralization section outlet liquid in step S3 into a first reaction tank in a second-stage oxidation section, adding lime milk and ferrous sulfate, sending the outlet liquid into asecond reaction tank in the second-stage oxidation section, introducing compressed air, controlling the pH value to be 8.5-9.5, reacting, and filtering to obtain a treated waste acid liquid. Accordingto the method, thallium and arsenic in the acid can be effectively removed, and the removal rate can reach 99.9% or above.
Owner:CHINA ENFI ENGINEERING CORPORATION
Intelligent control method for sewage plant based on mutation inversion effluent prediction model
ActiveCN110357236AStable water quality up to standardEffluent water quality is stable and up to standardWater contaminantsCharacter and pattern recognitionProblem of timeWater quality
The invention discloses an intelligent control method for a sewage plant based on a mutation inversion effluent prediction model. Intelligent sensing module preprocesses data acquired by equipment, inputs the data into a mutation inversion model to predict an effluent quality parameter; the predicted effluent quality parameter is input into an intelligent control module to obtain a corresponding equipment control instruction transmitted to corresponding equipment, so as to realize automatic operation; meanwhile, a database records effluent quality data, predicted effluent quality data and thecorresponding control instruction, automatically corrects model parameters and realizes an intelligent closed loop. The intelligent control method can predict the quality of the current effluent in real time, and solve the problem of time lag of an effluent quality detection sensor. Compared with a traditional model, the intelligent control method simplifies a solving process, improves the model precision and effectively ensures that the quality of the effluent meets the standard stably.
Owner:江苏如是数学研究院有限公司 +1
Intelligent water purification system
InactiveCN110803814AShorten the timeSave materialWater/sewage treatment by irradiationWater treatment compoundsWater flowProcess engineering
The invention discloses an intelligent water purification system and anapplication method thereof. The intelligent water purification system comprises at least one level of intelligent water purification device, wherein the intelligent water purification device comprises a first detection unit, a photooxidation reactor, a filter column, a second detection unit, an intermediate valve, a purification coil pipe, a third detection unit and a tail valve through which inlet water flows in sequence. The first detection unit sends a power adjustment signal to aultraviolet lamp after detecting the inletwater and the power of the ultraviolet lamp in the photooxidation reactor is adjusted, and the second detection unit sends a gating signal to the intermediate valve after detecting the effluent of the filter column to select whether to communicate with afirst up-to-standard discharge port or apurification coil pipe inlet; the third detection unit sends a gating signal to the tail valve after detecting the effluent of the purification coil pipetoselect whether to communicate with asecond up-to-standard discharge port or anaccident discharge port. To sum up, the system adjusts the operation parameters and treatment steps according to the detected water quality, which is flexible in operation, environmentally friendly and energy-saving.
Owner:NORTH CHINA ELECTRIC POWER UNIV (BAODING)
Denitrification and energy self-integration system for high-carbon-nitrogen-ratio wastewater
PendingCN112520949AImprove processing efficiencyEfficient removalWater treatment parameter controlWater treatment compoundsMethanationAir compressor
The invention discloses a denitrification and energy self-integration system for high-carbon-nitrogen-ratio wastewater. The system comprises a water inflow pump, a synchronous denitrification methanation device, an integrated anaerobic ammonia oxidation device and a composite ozone catalytic device which are sequentially connected through a pipeline; the synchronous denitrification methanation device is an upflow anaerobic sludge bed; the integrated anaerobic ammonia oxidation device comprises a homogenizing compartment, a plurality of reaction compartments and a precipitation compartment which are sequentially arranged and communicated with one another from one end to the other end; the synchronous denitrification methanation device is communicated with the homogenizing compartment through a first water outflow pipe; the composite ozone catalytic device comprises a plurality of electrocatalytic tubes which are connected in parallel; each electrocatalytic tube is communicated with an outlet in the top end of the precipitation compartment; an annular carbon cathode plate and an anode aerator arranged in the annular carbon cathode plate in a penetrating manner are arranged in each electrocatalytic tube; each anode aerator is connected with a second air compressor through an air inflow pipe; and the second air compressor is communicated with an air source. According to the systemof the invention, the treatment efficiency of the high-carbon-nitrogen-ratio wastewater is improved.
Owner:BEIJING JIAOTONG UNIV
Improved sewage treatment system
PendingCN111573977AHigh oxygenation efficiencyStrong resistance to shock loadsTreatment using aerobic processesSpecific water treatment objectivesDisinfectantOxidation pond
The invention designs an improved sewage treatment system. The improved sewage treatment system comprises a biological contact oxidation pond, a sedimentation pond, a multi-stage baffling bent pipe and a disinfection pond; a gill-type aerator for decomposing sewage and providing oxygen is arranged in the biological contact oxidation pond; the sedimentation pond is used for removing suspended matters; the multi-stage baffling bent pipe is used for ensuring that a liquid chemical and sewage are fully mixed; and the disinfection pond is used for carrying out plug flow and sterilization on the liquid chemical and the sewage. In the improved sewage treatment system disclosed by the invention, the biological contact oxidation pond is high in oxygenation efficiency and strong in impact load resistance; the multi-stage baffling bent pipe is additionally arranged on a water inlet pipeline of the disinfection pond; a dosing point is arranged at the front end of the bent pipe; the disinfectant and sewage are uniformly mixed under the baffling collision effect of the 10-15-stage right-angle bent pipe, and therefore, sterilization and disinfection effects are good, and it is guaranteed that effluent quality stably reaches standards.
Owner:普民环保科技有限公司
Sewage treatment aeration control system based on artificial neural network and operation method thereof
PendingCN112939209AStable water quality up to standardGuaranteed uptimeWater treatment parameter controlSustainable biological treatmentData acquisitionAir blower
The invention discloses a sewage treatment aeration control system based on an artificial neural network and an operation method thereof. The sewage treatment aeration control system comprises a data acquisition module, an aeration control module, a data storage module, a data analysis module and a man-machine interaction module; the data acquisition module acquires data and sequentially transmits the data to the aeration control module, the data storage module and the data analysis module; the aeration control module and the data analysis module are both connected with the man-machine interaction module, and a result obtained according to the data is displayed to an operator through the man-machine interaction module; the data analysis module obtains an instruction of an operator through the man-machine interaction module, processes data according to the instruction and displays the data to the operator through the man-machine interaction module; and the aeration control module is used for controlling an air blower arranged in a sewage treatment biological tank and a valve on a corresponding air pipeline by reading a calculation result of the man-machine interaction module. The application of the invention makes the sewage treatment process more efficient and more stable in operation.
Owner:SHANGHAI URBAN CONSTR DESIGN RES INST GRP CO LTD
A dissolved air flotation sewage treatment device with self-cleaning function
ActiveCN104829007BImplement automatic cleanupStable water quality up to standardMultistage water/sewage treatmentWater/sewage treatment by flotationAutomatic controlSlag
Owner:浙江美纳环保科技有限公司
Sewage treatment system and water treatment process thereof
PendingCN111499126AStable water quality up to standardHigh removal rateSpecific water treatment objectivesWater/sewage treatmentActivated carbonWater treatment system
The invention, which belongs to the field of environment-friendly water treatment, discloses a sewage treatment system and a water treatment process thereof, thereby solving a problem of poor water quality of a traditional oxidation ditch method. The sewage treatment system includes an oxidation ditch, a secondary sedimentation tank, a BAF biological filter and a disinfection tank arranged in sequence along the water flow direction; the BAF biological filter comprises a plurality of advanced treatment units; each advanced treatment unit comprises a carbon oxidation / nitrification tank and a denitrification tank; aerobic microorganisms and aerobic microorganism carriers are put into the carbon oxidation / nitrification tank; and anaerobic microorganisms and anaerobic microorganism carriers areput in the denitrification tank. According to the sewage treatment system disclosed by the invention, the water quality treated by the system is excellent and stably reaches the standard; and according to the water treatment process, the water quality treated by the process is excellent by controlling the purification process of the BAF biological filter and the advanced treatment of the activated carbon treatment tank.
Owner:江西康乾环保科技有限公司
Transformation method for upgrading village and town domestic sewage
PendingCN113800638AGuaranteed economyGuaranteed reliabilitySpecific water treatment objectivesWater aerationFixed bedSewage
The invention discloses a transformation method for upgrading village and town domestic sewage. According to the transformation method, treatment is carried out based on a deep treatment semi-fixed bed biochemical pool and a carbon source adding and circulating system. The transformation method comprises the following steps: sewage enters the deep treatment semi-fixed bed biochemical pool through a sewage header pipe; sewage is fed into an anoxic unit for treatment by a water impeller, then is treated by a carbon-adding anaerobic unit and an aerobic unit, and is discharged into an air flotation sedimentation tank through a water outlet tank; and a phosphorus removal agent is added in the process that the water body passes through the water outlet tank, the water body containing the phosphorus removal agent enters the air flotation sedimentation tank to be treated, then the water is discharged into a disinfection channel, and after the water body passes through a Parshall metering tank, the outlet water is detected to reach the designed discharge standard, and then the water body is discharged into a receiving water body. According to the scheme, the occupied area can be saved, the equipment is integrated, the water quality can stably reach the standard, the investment is saved, the energy consumption is low, the maintenance is convenient, and the operation is simple.
Owner:HUALAN DESIGN GRP CO LTD
A method for aerobic treatment of wastewater from deep pools and shoals constructed wetlands
ActiveCN104828932BEasy to handleStable water quality up to standardTreatment using aerobic processesSustainable biological treatmentPorosityConstructed wetland
The invention relates to an aerobic treatment method of deep-pool and shallow artificial wetland wastewater. According to the method, oxygenation is realized in a wastewater falling process; reoxygenation is carried out by converting potential energy into kinetic energy; degradation of aerobic microorganisms is carried out by utilizing a microorganism growth environment of bottom substrates of a deep pool; adsorption removal is carried out by utilizing actions of substrates in different layers of an artificial wetland; and wastewater deep treatment is realized by utilizing the absorption action of large-biomass plants. A deep-pool and shallow artificial wetland disclosed by the invention comprises the deep pool, a shallow, an S-shaped waterproof wall body and the substrates; the S-shaped waterproof wall body is positioned between the deep pool and the shallow; biological ceramsite, which is hard in substrate, large in particle diameter and high in porosity, is adopted as the substrates at the bottom of the deep pool; and the shallow is constructed by different substrates and plants at the front end of the deep pool. By means of aerobic treatment of the deep-pool and shallow artificial wetland wastewater, the wastewater treatment operation cost can be obviously reduced; the wastewater treatment efficiency and the wastewater treatment effect are increased; and organic unification of aerobic treatment and ecological treatment is realized.
Owner:ENERGY RES INST OF JIANGXI ACAD OF SCI
A Smart Control Method for Sewage Plants Based on Catastrophic Inversion Water Production Prediction Model
ActiveCN110357236BStable water quality up to standardEffluent water quality is stable and up to standardWater contaminantsCharacter and pattern recognitionEnvironmental resource managementWater quality
The invention discloses an intelligent control method for a sewage plant based on a catastrophic inversion water production prediction model. Preprocess the data collected by the equipment through the intelligent perception module, input the catastrophic inversion model to predict the water quality parameters, input the predicted water quality parameters into the intelligent control module, obtain the corresponding equipment control instructions and send them to the corresponding equipment to realize automatic operation, and at the same time Through the database, record the water quality data of inflow and outflow, predict the water quality data of outflow, and corresponding control instructions, automatically correct the model parameters, and realize the intelligent closed loop. The invention can predict the current outlet water quality in real time, and solves the time-lag problem of the outlet water quality detection sensor. Compared with the traditional model, the solution process is simplified, the accuracy of the model is improved, and the effluent quality is effectively guaranteed to meet the standard.
Owner:江苏如是数学研究院有限公司 +1
Adaptive predictive control method for sewage treatment process based on integrated real-time learning
ActiveCN110320806BTroubleshoot online update issuesOvercome limitationsAdaptive controlSewage treatmentControl valves
The invention relates to the technical field of sewage treatment process control, and provides an adaptive prediction control method for sewage treatment process based on integrated real-time learning. Construct the query regression vector, select the optimal similar learning subsets under different similarity indicators, process abnormal data, train to obtain multiple sets of prediction models, and obtain integrated prediction models through integrated weighting; then calculate the reference trajectory, construct the optimal control performance index, and solve the problem The optimal control quantity is obtained; the upper computer sends the optimal control quantity to the PLC system to adjust the oxygen quantity control valve in the fifth zone, collects the latest set of measurement data, and updates the historical database. The invention can carry out self-adaptive, stable and precise control of the sewage treatment process, improve the utilization rate of offline and online input and output measurement data, and effectively suppress the influence of input and output interference and abnormal data on control.
Owner:NORTHEASTERN UNIV LIAONING
Reclaimed water chlorinating device of sewage treatment system
InactiveCN105060427AStable water quality up to standardReduce adverse effectsWater/sewage treatment using germicide/oligodynamic-processAutomatic controlReclaimed water
The invention relates to a reclaimed water chlorinating device of a sewage treatment system, which comprises a primary water outlet pump room, a storage tank and a reclaimed water workshop. The device is characterized in that a pre-water inlet and storage tank production pipeline of the reclaimed water workshop is connected with a first chlorinating measuring pump; a second chlorinating measuring pump is additionally arranged in a pre-pump tank of the primary water outlet pump room; and the first and second chlorinating measuring pumps are connected with a signal transducer and a PLC (programmable logic controller), thereby implementing dosing quantity automatic control. Compared with the prior art, the device can ensure the pipe network tail water to stably reach the standard by adopting the two chlorinating processes, and also ensure the long water retention time; and the sodium hypochlorite is added for delayed use, and the water supply total chlorine content can not increase, thereby avoiding adverse effects on green plant growth. The sodium hypochlorite addition amount is 1 ton / day before the improvement and 1 ton / 25 days after the improvement, thereby saving 39 tons per year, saving 667 yuan of sodium hypochlorite per ton and saving the cost by 26 thousand yuan per year.
Owner:天津泰达新水源科技开发有限公司
Dye wastewater treatment method by coupling ozone oxidation with electrocatalytic reduction
ActiveCN114538678AOvercoming highly toxic halogenated by-productsStable water quality up to standardWater contaminantsEnergy based wastewater treatmentEnvironmental chemistryEnvironmental geology
The invention discloses a dye wastewater treatment method by coupling ozonation with electrocatalytic reduction, and belongs to the field of dye wastewater treatment.The method comprises the following steps that dye wastewater is subjected to A2 / O process treatment, and primary treatment wastewater is obtained; adding a catalyst MnOx / GAC into the primary treated wastewater, introducing ozone, and carrying out ozone catalytic oxidation treatment to obtain secondary treated wastewater; carrying out electrocatalytic reduction treatment on the secondary treatment wastewater; a working electrode for electrocatalytic reduction treatment is a Pd / gamma-MnO2 / Ni foam composite electrode, the electrode is prepared by taking foamed nickel as a matrix, forming a gamma-MnO2 intermediate layer on the surface of the foamed nickel through a hydrothermal reaction and then chemically depositing Pd nanoparticles. According to the invention, the ozone catalytic oxidation treatment and the electrocatalytic reduction technology are coupled, so that the synergistic removal of conventional pollutants and organic halides in the dye wastewater can be realized, the effluent quality is ensured to be stable and reach the standard, and the method has a wide application prospect.
Owner:TSINGHUA UNIV
Water purification and filtration system capable of reducing backwashing water consumption
PendingCN110812941AAvoid the defects of large water consumptionReduce water consumptionFiltration circuitsEngineeringButterfly valve
A water purification and filtration system capable of reducing backwashing water consumption comprises filter tanks; a water inlet tank and an emptying tank are arranged at the front end of each filter tank; each water inlet tank communicates with a water inlet pipe and communicates with the corresponding filter tank through a water inlet butterfly valve; each emptying tank is provided with a drainage pipe; a filter plate is mounted at the lower part of each filter tank through a filter plate supporting beam, a plurality of short-handle filter heads are mounted on each filter plate, and a filter material layer is placed on each filter plate; a U-shaped drainage channel is arranged above the filter material layers and communicates with the emptying tanks through drainage butterfly valves; awater outlet pipe is arranged below the rear end of each filter tank; a backwashing operation room, a water collecting tank and a water outlet water sealing well are arranged at the rear end of eachfilter tank; each water outlet water sealing well communicates with a water collecting tank; each water collecting tank is provided with a clear water pipe and a backwashing water supply pipe; each water outlet water seal well communicates with the water outlet pipe through a water outlet valve and a water passing pipe; each water outlet pipe is connected with a backwashing water inlet pipe through a water inlet valve; the lower part of each filter tank communicates with a backwashing gas inlet pipe. The system ensures that the water quality is stable and reaches the standard and saves backwashing water at the same time.
Owner:HUALAN DESIGN GRP CO LTD
Method for removing iron ions from sewage with high iron content
ActiveCN102351299BStrong targetingReduce dosageWater/sewage treatment by flocculation/precipitationWater sourceWater quality
The invention relates to a method for removing iron ions from sewage with high iron content. The method comprises the following steps of: adding a 50 to 200mg deironing aid into each liter of sewage with the high iron content and fully mixing for 1 to 10 minutes; adding a 5 to 30mg deironing agent into each liter of sewage and fully mixing for 1 to 10 minutes; and adding a 1 to 3mg phase transfer agent into each liter of sewage and fully mixing for 1 to 20 minutes, wherein the iron ions in the sewage are flocculated into large particle floccus, settled quickly and discharged from a drain outlet. Water treated by the method has quite high water quality stability, and the quality change of the treated water due to unstable factors in the long-distance pipeline transfer process is reduced. The treated water meets the requirement of the quality of water injected into an oil pool and has high compatibility, deep pollution to stratums is reduced, and a large number of water sources are saved.
Owner:BEIJING ENRUIDA TECH
Control method for backflow and dissolved oxygen of mixed liquid of MBR system
PendingCN112479366AImprove nitrogen and phosphorus removal efficiencyStable water quality up to standardTreatment with aerobic and anaerobic processesControl systemSewage treatment
The invention discloses a control method for the backflow and dissolved oxygen of mixed liquid of an MBR system. The method comprises a sewage treatment and discharge step and an oxygen-dissolved mixed liquid backflow control step. A control system on which the control method is based comprises a fan, an anaerobic tank, an anoxic tank, an aerobic tank, an MBR membrane tank, a clean water tank, a first reflux pump, a second reflux pump, a third reflux pump and a reflux pipeline. According to the invention, dissolved oxygen in the aerobic tank, the anoxic tank and the anaerobic tank can be controlled within a proper range, so the nitrogen and phosphorus removal efficiency of the system is improved, water quality is stable and reaches the standard, effluent can meet ultrahigh standard discharge requirements, and the energy consumption of the system is remarkably reduced compared with the energy consumption of a traditional process.
Owner:HENAN UNIV OF SCI & TECH
Spherical hydroxyapatite fluoride-removing material regenerated powder and application thereof
InactiveCN103349974BReduce the cost of defluoridationEnsure water quality safetyOther chemical processesWater contaminantsParticulatesWater quality
The invention provides spherical hydroxyapatite fluoride-removing material regenerated powder comprising natural particles and inorganic aluminum salt. The invention also provides a method for removing fluoride from underground water by using the regenerated powder. The spherical hydroxyapatite fluoride-removing material regenerated powder provided by the invention has the advantages of scientific formula, wide raw material source, and low cost. An underground water fluoride-removing method provided by the invention has the advantages of simple technology, convenient application, low cost, good fluoride-removing effect, high outlet water quality, no need of periodic regeneration, low wastewater production, low processing cost, and good popularization and application prospect.
Owner:HOHAI UNIV +1
Acidic heavy metal wastewater treatment method and system
PendingCN114368851AReduce dosageIncrease concentrationWater treatment parameter controlSludge treatmentSludgeReaction system
The invention discloses an acidic heavy metal wastewater treatment method and system.According to the acidic heavy metal wastewater treatment method and system, by arranging an adjusting system and a reaction system, a precipitation system capable of being automatically controlled and the like, system operation is more efficient and intelligent, and by arranging an automatic agent preparing and adding system, accurate agent adding and intelligent automatic operation in the reaction system are facilitated; the method has the advantages that chemical consumption and labor cost are reduced, the water treatment capacity is greatly improved, the sludge concentration is improved, meanwhile, the scaling phenomenon in a reaction system is greatly reduced, the scale cleaning period is prolonged by more than 50%, and the operation and maintenance cost is reduced.
Owner:BEIJING MINING & METALLURGICAL TECH GRP CO LTD
Water quality treatment system and method
ActiveCN110240272AEliminate the effect of aeration intensityStable water quality up to standardTreatment using aerobic processesTreatment with aerobic and anaerobic processesAir volumeBiological filter
The invention relates to the technical field of water treatment, and provides a water quality treatment system and a water quality treatment method. The system comprises a first wind power transmission mechanism and a biofilm water treatment system, wherein the biofilm water treatment system comprises a biofilter and an aeration component, the aeration component is driven by the first wind power transmission mechanism, an aeration quantity control component is arranged in the aeration component, and a water intake quantity control component and a water discharge quantity control component are arranged on the biofilter. According to the water quality treatment system and method, the aeration control component is utilized to control the air volume of the aeration component, and specifically comprises controlling the total aeration amount or the aeration flow rate of the aeration amount control component, and simultaneously eliminates the influence on the aeration intensity due to the wind power fluctuation as much as possible by combining the on-off control or the flow rate control of the water intake quantity control component and / or the water discharge quantity control component, thereby realizing that the oxygen supply and the pollution load in to be treated sewage in the biological filter are in a relatively balanced state, and the water quality of effluent always keeps stable and up to standard.
Owner:BEIJING NORMAL UNIVERSITY
A water quality treatment system and method
ActiveCN110240272BEliminate the effect of aeration intensityStable water quality up to standardTreatment using aerobic processesTreatment with aerobic and anaerobic processesWater dischargeBiological filter
Owner:BEIJING NORMAL UNIVERSITY
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