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75results about How to "Long mud age" patented technology
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Method and device for treating garbage percolate
ActiveCN101597131AAchieving zero emissionsRelieve stressSludge treatment by de-watering/drying/thickeningTreatment with aerobic and anaerobic processesHigh concentrationAfter treatment
The invention discloses a method and a device for treating garbage percolate, wherein the method comprises the steps of pretreatment, anaerobic treatment, membrane biochemical treatment, nanofiltration treatment, sludge treatment and the like; the device comprises a primary sedimentation tank (1) and an adjusting tank (2), the adjusting tank (2) is connected with an anaerobic reactor (3), the anaerobic reactor (3) is connected with a denitrification tank (4), and the denitrification tank (4) is communicated with a nitrification tank (5); and the nitrification tank (5) is connected with an ultrafiltration apparatus (6), and the ultrafiltration apparatus (6) is connected with a nanofiltration device (7). The method and the device achieve COD degradation of high-concentration wastewater so that the COD of high-concentration COD of 50,000 reaches about 50 after treatment and reaches the standard of industrial reuse water, thus the method and the device achieve zero discharge of the percolate, initiate a new attempt to treat high-concentration percolate, and fill up the domestic blank.
Owner:汕头市澄海洁源垃圾发电厂有限公司
Method for applying integrated technology of combination of membrane biochemistry and nanofiltration membrane to high-density leachate advanced treatment and recycling
InactiveCN102190400ARelieve stressSolve pollutionSludge treatment by pyrolysisTreatment with aerobic and anaerobic processesHigh densityUltrafiltration
The invention discloses a processing method and a processing apparatus of landfill leachate. The processing method comprises steps of pretreatment, anaerobic treatment, membrane biochemical treatment, nanofiltration treatment, and sludge treatment and the like. And the processing apparatus includes a primary settling tank (1) and a regulating tank (2). The regulating tank (2) is connected with an anaerobic reactor (3) which is connected with a denitrifying tank (4); the denitrifying tank (4) is communicated with a nitration tank (5), which is connected with ultrafiltration equipment (6); and the ultrafiltration equipment (6) is connected with nanofiltration equipment (7). According to the invention, COD of the high-density wastewater is degraded. After processing, high-density COD of 50,000 to 60,000mg / L is degraded to COD of about 50 mg / L, which reaches the standard of industrial reused water. Moreover, zero discharge of leachate is realized. Therefore, a new attempt to treat the high-density leachate is initiated and the domestic blank is filled.
Owner:HUZHOU NANTAIHU ENVIRONMENTAL PROTECTION ENERGY
Sludge reflow-free device with simultaneous nitrification and denitrification (SND) function and operation control method thereof
ActiveCN102173510ASolve the problem that it is difficult to control the microbial metabolic environmentEasy to operate and controlControlling ratio of multiple fluid flowsTreatment with aerobic and anaerobic processesSludgeCombined use
The invention discloses a sludge reflow-free device with a simultaneous nitrification and denitrification (SND) function. The device comprises a pool body; the sidewall of the pool body is provided with a main water inlet; the interior of the pool body is divided by a clapboard into a diversion area, an aeration area and a sludge precipitation area in sequence; the aeration area is internally provided with an overflow groove; the bottom of the aeration area is provided with microporous aeration devices distributed uniformly; and the sludge precipitation area is internally provided with a membrane element. The invention also discloses an operation control method of the device. By skillful arrangement of aeration pipes and combined use with a biological membrane, the power cost and the operating cost of sludge reflow are saved, and the purpose of reducing energy consumption is achieved. The biological environment to be achieved by the simultaneous nitrification and denitrification is adjusted indirectly through adjusting parameters such as active sludge concentration, sludge age, unit sludge load and the like; the operation is strong in human controllability, and the problem that the microbial metabolic environment in the SND technology is not easy to control is solved.
Owner:ZHEJIANG GONGSHANG UNIVERSITY
Sewage treatment method for nitrogen and phosphorus removal through combination of biofilm process and multilevel activated sludge process
InactiveCN102826715ALong mud ageIncrease biological fillerWater contaminantsMultistage water/sewage treatmentActivated sludgeMoving bed biofilm reactor
The invention relates to a sewage treatment method for nitrogen and phosphorus removal through the combination of a biofilm process and a multilevel activated sludge process. Sewage which is delivered into an anoxic tank is distributed to respectively flow into a first anoxic tank and a second anoxic tank; the sewage which flows by the first anoxic tank then flows into an aerobic tank, and is converged with the sewage which flows into the second anoxic tank, and the converged sewage flows into a moving bed biofilm reactor (MBBR) tank to be treated and flows into a sedimentation tank; and the sewage is stopped in the sedimentation tank, part sludge is discharge into a preconcentration tank, and remains in the preconcentration tank for 0.25-1.0 hour, supernatant flows back to the second anoxic tank by passing by the top of the preconcentration tank, and the concentrated sludge is delivered to a pre-anoxic tank through a reflow passage at the bottom of the preconcentration tank, and flows back to the anoxic tank finally through the pre-anoxic tank for circulation treatment. According to the method, the biological treatment nitrogen and phosphorus removal effect is ensured through MBBR aerobic tank and preposed anaerobic zone carbon source distribution, returned sludge preconcentration and other typical technological methods, thus, the municipal sewage treatment effect is improved, and the pollution to the environment is reduced.
Owner:TONGJI UNIV
Horizontal integrated three phase inner circulation fluidized reactor and its biological reaction process
InactiveCN1648069ANovel structureImprove capacity utilizationBiological water/sewage treatmentSludgeWastewater
The horizontal integrated three-phase internally circulating fluidized reactor has reactor box, guide plate and inclined precipitating plate to separate the rector box into three regions, lower filtering net, microporous aerator in the lower part of the upward flow region, water collector in the upper part of the mud-water separating region, and mud water valve in the lower part of the mud-water separating region. The bioreaction process inside the fluidized reactor includes: pumping organic waste water into the reactor and adding porous foamed sponge; introducing air into the microporous aerator for aeration; draining clear water via the water collector and depositing sludge to downward flow region; and draining rest sludge via the sludge exhausting valve.
Owner:SOUTHEAST UNIV
Deep well aeration film bioreactor waste water treatment process and apparatus
ActiveCN101323482AImprove mass transfer efficiencyIncrease concentrationWater/sewage treatment bu osmosis/dialysisSustainable biological treatmentActivated sludgeHigh density
A deep-well aeration membrane biological reactor waste-water disposal process and a corresponding apparatus relate to the waste-water disposal technique field, aiming at solving the technical problems of further reducing occupied area and energy cost by the deep-well aeration waste-water disposal. The waste-water disposal apparatus comprises a deep well and a top trough; the top of the deep well is connected with the bottom of the top trough, and a liquid raising circulation system is arranged in the deep well. The apparatus is characterized in that the apparatus also comprises a membrane biological reactor connected with the top trough; a membrane element which is connected with a water outlet tube and is arranged on the upper-internal part of the membrane biological reactor; an aeration device which is connected with a fan and is arranged on the lower part of the membrane element; a sludge hopper is arranged on the lower (bottom) part of the membrane biological reactor; a sludge backflow pipe connected with the bottom of the top trough and a sludge-draining pipe connected with a sludge-removing device which are respectively arranged at the bottom of the sludge hopper and are controlled by valves respectively. The invention makes use of the suction of the circulation flow to the sludge backflow pipe to absorb the sludge to the deep well to be mixed with sewage. The invention is characterized in that the occupied area is small; the activated sludge has high density; the rest sludge is less and the energy cost is low.
Owner:SHANGHAI GUANGLIAN ENVIRONMENTAL & GEOTECHNICAL ENG CO LTD
Treatment method of water recovered from oil field refilling
InactiveCN1517308AEffective settlementImprove adsorption capacityFatty/oily/floating substances removal devicesLiquid separationSludgeSeparation technology
A process for treating the water recovered from oil field in order to inject the treated water back to oil field features the combination of biologic treating with membrane separation. The special bacillus and extreme bacillus are screened, inoculated and purified for using them in biologic treatment. Its advantage is high treating effect.
Owner:JIANGSU BODA ENVIRONMENTAL PROTECTION
Folded plate anaerobic moving biofilm online sewage treatment system
InactiveCN103030253AImprove removal efficiencyNo problems with mechanical equipmentMultistage water/sewage treatmentActivated sludgeNitrogen removal
The invention provides a folded plate anaerobic moving biofilm online sewage treatment system and relates to the technical field of sewage treatment systems. The folded plate anaerobic moving biofilm online sewage treatment system comprises a folded plate anaerobic reactor; the output end of the folded plate anaerobic reactor is connected with a moving bed biofilm reactor; and the first output end of the moving bed biofilm reactor is connected with a first water pipe. The invention designs an efficient energy-saving treatment method which is small in size, low in infrastructure expenditure and running expense, and more economical than a contact oxidation method and is an upgrade and an improvement or a substitute of a traditional activated sludge process, a fixed bed contact oxidation method and other treatment methods. The folded plate anaerobic moving biofilm online sewage treatment system is widely applied to newly building or upgrading and improving all the existing industrial and domestic sewage treatment systems and particularly greatly improving the system effluent quality and the phosphorus and nitrogen removal effect in the upgrading and improvement project on the premise that the improvement on the existing building is small, and the investment is reduced.
Owner:JIANGSU NENGZHENG ENVIRONMENTAL PROTECTION TECH CO LTD
Method for advanced treatment of ammonia nitrogen sewage
ActiveCN101172735AGuaranteed reuseFast reproductive metabolismWater/sewage treatment bu osmosis/dialysisTreatment with aerobic and anaerobic processesWater qualityEmission standard
The invention relates to a method for deep treatment of ammonian sewage, and the method belongs to the technical field of the environment protection. The invention conducts integration and innovation based on the traditional ammonian sewage treatment method and combines the physical, chemical and biological treatments, namely, an improved oxygen-poor and aerobic technique, film separation and biological treatment are adopted in the treatment of the eutrophic water which is low in BOD5, and then the eutrophic water is discharged or reused after the treatment under the standard. The invention has the advantages of low capital construction and work, good water treatment, no secondary pollution and state discharge standard conformity of the discharged water, etc., thereby being widely used in the treatment of the eutrophic water with the density of the BOD5 being 48.5mg / L.
Owner:ASIA PACIFIC ENVIRONMENTAL CORP
Hydrolysis/aerobic cycle suspension activated sludge process and device for deep treatment of waste water
ActiveCN103121756AReduce loadIncrease concentrationTreatment with aerobic and anaerobic processesSustainable biological treatmentActivated sludgeOxygen
The invention discloses a hydrolysis / aerobic cycle suspension activated sludge process and device for deep treatment of waste water. The hydrolysis / aerobic cycle suspension activated sludge process adopts a suspension activated sludge process and comprises the following steps of: enabling waste water to enter a hydrolysis tank to be subjected to anaerobic hydrolysis, then enabling the waste water to enter an aerobic tank to be subjected to deep treatment, and finally enabling the waste water to enter a secondary sedimentation tank to be subjected to mud-water separation, so that the waste water can be discharged, wherein backflow ratio of mixed solution of the aerobic tank returning to the hydrolysis tank is 1.0-8.0, and the backflow ratio of sludge of the secondary sedimentation tank returned to the hydrolysis tank is 0.5-2.0. The hydrolysis / aerobic cycle suspension activated sludge device comprises the hydrolysis tank, the aerobic tank and the secondary sedimentation tank, wherein the outlet of the hydrolysis tank is connected with the inlet of the aerobic tank, the outlet of the aerobic tank is connected with the inlet of the secondary sedimentation tank, a first return pipe is arranged from the aerobic tank to the hydrolysis tank, and a second return pipe is arranged from the secondary sedimentation tank to the hydrolysis tank. The treatment method disclosed by the invention has the characteristics of simple flow, easiness for operation, high treatment efficiency and low running cost.
Owner:上海心缘环境工程有限公司
Dynamic membrane anaerobic-aerobiotic wastewater treatment method based on microbiological fuel cell
InactiveCN105858890APollution controlWide selection of materials and low costTreatment by combined electrochemical biological processesTreatment with aerobic and anaerobic processesMicrobial fuel cellFuel cells
The invention relates to wastewater treatment, in particular to a dynamic membrane anaerobic-aerobiotic wastewater treatment method based on a microbiological fuel cell. A treatment device is provided with an anode chamber, a cathode chamber and an aeration device, the anode chamber is provided with a temperature gauge, a stirring device and an anode, and the cathode chamber is provided with an aerator and a cathode. Raw water enters an anaerobic-anode tank and an aerobiotic-cathode tank, and sludge is discharged from the bottom of the anaerobic-anode tank; a perforated aeration pipe is arranged in the aerobiotic-cathode tank in a penetrating mode, and sludge is discharged from the bottom; dynamic membrane assemblies are placed in the anaerobic-anode tank and the aerobiotic-cathode tank, and wastewater in the anaerobic-anode tank is pumped into the aerobiotic-cathode tank through a constant-flow pump via a water outlet of the corresponding dynamic membrane assembly; wastewater in the aerobiotic-cathode tank is pumped back into the anaerobic-anode tank through a constant-flow pump via a water outlet of the corresponding dynamic membrane assembly, so that wastewater in the anaerobic-anode tank and wastewater in the aerobiotic-cathode tank are simultaneously, continuously and circularly treated in time and space, and the wastewater treatment process is completed; the water inlet flow velocity and the circulation flow velocity are controlled through the constant-flow pumps, and outlet water is discharged after reaching the standard.
Owner:XIAMEN UNIV
Dual-reflux efficient anaerobic reaction device and wastewater treatment method
InactiveCN105776528AImprove the mixing effectWell mixedWaste based fuelTreatment with anaerobic digestion processesRefluxVapor–liquid separator
The invention discloses a dual-reflux efficient anaerobic reaction device and a wastewater treatment method. The dual-reflux efficient anaerobic reaction device comprises a wastewater allocation tank, an anaerobic reactor, a gas-liquid separator and a selective precipitator, wherein facilities for adjusting the temperature, the pH value and the like are arranged in the wastewater allocation tank, and an anaerobic water inlet pipe is connected with the anaerobic reactor; a water distributor, a first-stage three-phase separator and a second-state three-phase separator are arranged at the bottom in the anaerobic reactor; the upper part of the gas-liquid separator is connected with the first-stage three-phase separator and the second-state three-phase separator by virtue of a marsh gas riser pipe respectively, and the bottom of the gas-liquid separator is connected with the water distributor by virtue of an internal reflux pipe; and the upper part of the selective precipitator is connected with an anaerobic water outlet pipe of the anaerobic reactor, the bottom of the selective precipitator is connected with the wastewater allocation tank by virtue of an external reflux pipe, and the external reflux pipe is provided with an adaptive flow control device. The dual-reflux efficient anaerobic reaction device disclosed by the invention is strong in impact resistance, high in anaerobic biochemical removal rate, and beneficial for maintenance of efficient and stable running of the system.
Owner:SHANDONG ZHONGXIN ENVIRONMENTAL ENG CO LTD
Self-aerated biological runner and small-town wastewater treatment equipment and process
InactiveCN107200399AIncrease exposureNo need to overcome pressure lossTreatment with aerobic and anaerobic processesMultistage water/sewage treatmentActivated sludgeBiofilm
The invention discloses a self-aerated biological runner and small-town wastewater treatment equipment and process. A fiber bundle bionic filler screen is hung in the cavity of the self-aerated biological runner in an overlapping way; two ends of the fiber bundle bionic filler screen are hung on two adjacent runners respectively; the self-aerated biological runner has high aeration efficiency; aeration equipment in the sewage treatment equipment is used for aerating by using the self-aerated biological runner; an up-flow honeycomb duct is adopted for stirring instead of a stirrer; mud-water separation is performed with a three-phase separator and a tilted plate separator. In the wastewater treatment process, a biological contact oxidizing process combining an active sludge method and a biological membrane method is adopted, a gas stripping technology is adopted for sewage reflow in order to omit an inner circulation pump, and a three-phase separation technology and inclined plate settlement are adopted for mud-water separation. The process is simple, is safe, is easy to operate, and has high treatment efficiency.
Owner:北京安力斯环境科技股份有限公司
Coupling membrane biological treatment reactor for toxic high-nitrogen-content chemical industry sewage
ActiveCN110436630AIncrease concentrationLong mud ageWater treatment parameter controlWater contaminantsChemical industrySludge
The invention relates to a coupling membrane biological treatment process and a reactor for toxic high-nitrogen-content chemical industry sewage. According to the present invention, by using the coupling membrane biological treatment process and the reactor, sewage is treated sequentially through a biological selection pool, a suspended filler oxidation pool, an aerobic activity sludge pool, an anoxic activity sludge pool and a membrane pool to obtain the effluent meeting the discharge standard; the process and the reactor have characteristics of high removal efficiency and strong impact resistance, and the COD, the ammonia nitrogen and the total nitrogen in the effluent can stably achieve the standards; no oxidant and catalyst are used, the operation cost is low, and no secondary pollution is generated; the reactor is an integrated structure so as to save the occupation area and reduce the energy consumption required for the reflux of the mixed liquid and the sludge, such that the engineering investment is low; and the process and the reactor has advantages of simple processing flow, convenient operation, convenient maintenance and the like, and can be used in the industrial production of toxic high-nitrogen-content chemical industry sewage.
Owner:上海水合环境工程有限公司
Biochemical pool MBBR process and denitrification deep-bed filter tank coupled nitrogen and phosphorus removal system and method thereof
PendingCN109650652APrecise Dosing Control MeasuresResistant to shock loadsWater contaminantsTreatment involving filtrationFlocculationControl valves
The invention relates to a biochemical pool MBBR process and denitrification deep-bed filter tank coupled nitrogen and phosphorus removal system and a method thereof. The system comprises a biochemical pool and a secondary sedimentation tank. The biochemical pool is divided into at least two chambers. In the chamber close to the outlet are arranged several suspended fillers. The denitrification deep-bed filter tank is located downstream the secondary sedimentation tank. The denitrification deep-bed filter tank comprises a flocculation basin, inside which a stirring mechanism is arranged and the top of which is provided with a carbon source dosing mechanism and a flocculating agent dosing mechanism. A water inlet main canal is connected downstream, and an intake gate is arranged in the water inlet main canal. A filter grid is arranged downstream. An intake canal is connected under the filter grid. A filter tank is arranged under the intake canal. Inside the filter tank, a filter layer,a supporting layer, a filter board and a filter head disposed on the filter board are successively arranged from top to bottom. The denitrification deep-bed filter tank also comprises a backwashing fan and a backwashing water pump. The outlet of the backwashing fan extends through a pipeline to the supporting layer, and the outlet of the backwashing water pump extends through a pipeline into the filter tank below the filter board. The pipelines are all provided with a control valve. The system of the invention can perform denitrification and physical interception to remove phosphorus.
Owner:浙江中昌水处理科技有限公司
Method for biochemically treating coking wastewater
ActiveCN101913728ANo reflow requiredSolve processingTreatment with aerobic and anaerobic processesMultistage water/sewage treatmentVolatile phenolsEmission standard
The invention discloses a method for biochemically treating coking wastewater. The method comprises the following steps of: pretreating coking wastewater; feeding pretreated coking wastewater into an anaerobic tank for anaerobic treatment; and feeding the treated wastewater into an aerobic three-phase fluidized bed for anaerobic treatment, wherein the pH of the anaerobic tank is between 6.0 and 7.5; the hydraulic retention time is between 8 and 30 hours; the pH of the aerobic three-phase fluidized bed is between 7.5 and 8.5; the hydraulic retention time is between 8 and 24 hours; the dissolved oxygen content is between 2 and 4mg / L; and effluent COD, ammonia nitrogen, volatile phenol and cyanide meet the steel industrial water pollutant effluent standard (GB13456-92) and the primary standard of the integrated wastewater effluent standard (GB 8978-1996). The method can effectively solve the problems of bad treatment effect, large amount of sludge, complicated process, high cost and the like caused by biochemically treating the coking wastewater by ammonia nitrogen and has the advantages of simple operation, low cost, economic feasibility, contribution to popularization, and capability of effectively improving and solving the problem of environment pollution caused by the coking wastewater.
Owner:南京洁水科技有限公司 +1
Method for treating organic wastewater through dynamic membrane anaerobic-aerobic integration
ActiveCN102557352BEliminate the effects of bloatImprove water qualityTreatment with aerobic and anaerobic processesMultistage water/sewage treatmentAnaerobic aerobicAir compressor
The invention discloses a method for treating organic wastewater through dynamic membrane anaerobic-aerobic integration, and relates to a wastewater treatment method. The original wastewater enters a first-stage aerobic tank in which a first-stage perforated aeration pipe is arranged, an external air compressor is used for blast aeration, the aeration amount is controlled by a rotameter, and sludge is discharged from the bottom of the first-stage aerobic tank; the wastewater flowing through the first-stage aerobic tank flows into a first-stage anaerobic tank through a first-stage dynamic membrane, a first-stage stirrer device is arranged in the first-stage anaerobic tank, and sludge is discharged from the bottom of the first-stage anaerobic tank; the wastewater flowing through the first-stage anaerobic tank flows into a second-stage aerobic tank through a second-stage dynamic membrane, a second-stage perforated aeration pipe is arranged in the second-stage aerobic tank, an air compressor is used for blast aeration and sludge is discharged from the bottom of the second-stage aerobic tank; and the wastewater flowing through the second-stage aerobic tank flows into a second-stage anaerobic tank through a third-stage dynamic membrane, a second-stage stirrer device is arranged in the second-stage anaerobic tank, sludge is discharged from the bottom of the second-stage anaerobic tank, and the wastewater reaching the standard is discharged through a water outlet of the second-stage anaerobic tank.
Owner:XIAMEN HUANKANG ENVIRONMENTAL PROTECTION TECH
Industrial sewage deep denitrifying and recycling process
ActiveCN102826656AAvoid churnLong mud ageTreatment with aerobic and anaerobic processesFiltration membraneChemical oxygen demand
The invention relates to an industrial sewage deep denitrifying and recycling process. Aiming at the problems of the existing prepositioned denitrification or synchronous denitrification denitrifying process that the denitrification is not complete and total nitrogen content of output water is higher, the invention provides an O / A / O (Oxic / Anoxic / Oxic) process and a first-grade aerobic tank and ananaerobic tank are respectively controlled to optimal conditions needed by nitrification and denitrification, so that nitrification, carbonization and denitrification processes can be completely finished; a residual carbon source of denitrification is decomposed in a second-grade aerobic tank; and the tank is internally provided with an ultra-filtration membrane to replace a sedimentation basin. The industrial sewage deep denitrifying and recycling process disclosed by the invention has the characteristics of high total nitrogen content and COD (Chemical Oxygen Demand) removing rate, simple flow and convenience for controlling, is applicable to modifying the existing sewage treatment system with a total nitrogen index which does not reach to the standard, or deep denitrification treatmentof industrial sewage which has high total nitrogen and insufficient carbon source, and is difficult to biologically degrade; and the output water can be used as a water resource of supplement water of circulating cooling water, and supplement water of a boiler, and has other usages.
Owner:上海水合环境工程有限公司
Biological sewage treating process by means of fiber membrane fixed organism
InactiveCN101066799APromote formationPromote regenerationSustainable biological treatmentBiological water/sewage treatmentFiberSludge
The biological sewage treating process by means of fiber membrane fixed organism includes the following steps: 1. weaving fibrous biological membrane carrier with Dacron filament and attaching active microbial sludge for sewage treatment to the surface of the fiber; and 2. setting the fibrous biological membrane carrier in anaerobic or aerobic reactor, and soaking the carrier in industrial sewage over aerator and basic device so that the ascending bubble can provide organism with sufficient oxygen. The present invention has high sewage treating efficiency, stable performance, low power consumption, long service life and other advantages.
Owner:普罗生物技术(上海)有限公司
Deep-bed multiplication MBBR reactor for rural sewage treatment
InactiveCN108328879ASmall footprintShort startup timeBiological treatment apparatusMultistage water/sewage treatmentStart timeSludge
The invention discloses a deep-bed multiplication MBBR reactor for rural sewage treatment. The deep-bed multiplication MBBR reactor comprises an anaerobic tank, an anoxic tank, an MBBR tank, a secondary sedimentation tank and a micro-ecology filter bed and is characterized in that the anaerobic tank is connected with a water inlet pipe, the anaerobic tank is communicated with the anoxic tank through a pipeline I, the anoxic tank is communicated with the MBBR tank through a pipeline II, the MBBR tank is communicated with the secondary sedimentation tank through a pipeline III, the secondary sedimentation tank is communicated with the micro-ecology filter bed through a secondary sedimentation tank water outlet pipe, and plants are planted on the micro-ecology filter bed; sewage enters the water inlet pipe, flows into the anaerobic tank, is sequentially treated by the anaerobic tank, the anoxic tank, the MBBR tank and the secondary sedimentation tank and then enters the micro-ecology filter bed. The deep-bed multiplication MBBR reactor has the advantages that an aerobic zone is small in floor space, and civil engineering investment is saved; under conditions that same filler is addedand pollution load is identical, the MBBR tank about accounts for 70% of the capacity of a conventional aerobic tank; meanwhile, the MBBR tank is short in starting time, low in operation energy consumption, resistant to impact load, prolonged in sludge age, free of sludge bulking and resistant to toxic compounds.
Owner:ANHUI JINDALAI ENVIRONMENT ENG CO LTD
Device and process of distributed domestic sewage treatment
PendingCN108946939APrevent precipitationPromote oxidative decompositionWater contaminantsBiological treatment apparatusSludgeNitrogen
The invention belongs to the technical field of sewage treatment equipment, and particularly relates to a device and process of distributed domestic sewage treatment. The device comprises a cylindrical pool body, wherein the cylindrical pool body is internally provided with an anoxic tank, an aerobic tank and an inverted truncated conical tank, an air inlet pipe box is connected with an air inletpipe and a blower, and a water inlet pipe is arranged at the top of the left side of the anoxic tank, a water outlet is formed in the bottom of the right side of the anoxic tank, and a perforated aeration pipe is arranged in the anoxic tank; the aerobic tank communicates with the water outlet of the anoxic tank, a microporous aeration disc and a third gas stripping pump are arranged at the bottomof the aerobic tank, and a gap is formed in the side wall of the bottom of the inverted truncated conical tank; and a first gas stripping pump is also arranged at the bottom of the inverted truncatedconical tank, the outlet end of the first gas stripping pump is connected with a sludge returning pipe, the free end of the sludge returning pipe communicates with the anoxic tank, and a water outletpipe is arranged at the center of the top of the inverted truncated conical tank. The invention aims to solve the problems, which are caused by the structural defects of an existing sewage treatment device, of a poor effect of biological removal of nitrogen and phosphorus, poor quality of effluent, large floor space and no benefits for promotion of a distributed sewage treatment technology.
Owner:BEIJING WANHOU ENVIRONMENTAL TECH DEV
Integrated toxic degradation-resistant wastewater treatment device and treatment method
ActiveCN111908722AEnsure swirlReduce processing energy consumptionWater treatment compoundsMultistage water/sewage treatmentEnvironmental chemistryOxidation response
The invention discloses an integrated toxic degradation-resistant wastewater treatment device and treatment method. The device comprises an adjusting tank, a first-stage reactor, a second-stage reactor, a third-stage reactor, a coagulative precipitation tank and a biochemical reaction tank which are sequentially connected in series, and further comprises an aeration blower, wherein the first-stagereactor and the third-stage reactor are advanced oxidation reactors, the second-stage reactor is a Fenton reactor, the coagulative precipitation tank comprises 2-4 stages, each stage of coagulative precipitation tank is formed by connecting a coagulative reaction tank, a primary precipitation tank and a secondary precipitation tank in series, and the biochemical reaction tank is formed by connecting an anoxic tank, an aerobic tank, a precipitation tank and a clean water tank in series. According to the wastewater treatment method provided by the invention, a toxic degradation-resistant wastewater treatment device is combined with reasonable process parameters, a Fenton-like reaction and a Fenton reaction are effectively coupled and cooperate with each other, and proper coagulating sedimentation and biochemical reaction processes are matched, so that the wastewater treatment effect can be enhanced, the wastewater treatment efficiency is improved, and the wastewater treatment cost is reduced.
Owner:SICHUAN UNIV
Aquatic product processing wastewater treatment technology and device
PendingCN108483826ANo need for additional hydrolytic acidificationAchieve separationWater contaminantsTreatment involving filtrationSequencing batch reactorAfter treatment
The invention relates to the field of environmental engineering sewage treatment, in particular to aquatic product processing wastewater treatment. An aquatic product processing wastewater treatment technology comprises an AnMBR (anaerobic membrane bioreactor) reaction, secondary phosphorus removal and a CWSBR (constant waterlevel sequencing batch reactor) reaction after pretreatment. By the treatment technology, a technical route is simple, pollutants in the processing wastewater can be effectively removed and the purpose of up-to-standard discharge of aquatic product processing wastewater after treatment is achieved; in addition, the treatment technology is easy to operate and easy to manage; by the treatment technology, a reliable, high-efficiency and stable technical approach is provided for the aquatic product processing wastewater treatment.
Owner:大连迈克环境科技工程有限公司
Printing and packaging wastewater treatment process
PendingCN111484188AImprove conversion rateLong mud ageTreatment using aerobic processesMultistage water/sewage treatmentActivated sludgeMicroorganism
The invention relates to the technical field of wastewater treatment, in particular to a printing and packaging wastewater treatment process. In the process system disclosed by the invention, a fixedfiller is added in an anaerobic tank as a biological attachment carrier, so that the total biomass of the system is more than two times that of an activated sludge process with the same volume, and the treatment capability of the sewage biochemical treatment system is greatly improved. The filler plays a role in forced turbulence of water flow and air flow, promotes full contact of pollutants, airand microbial cells in water, and substantially strengthens the mass transfer process. The process is beneficial to improvement of the sludge age of sludge in the system, high volume load of a reactor, short hydraulic retention time, high oxygen conversion rate and effective saving of investment and operation cost.
Owner:上海多狄环保科技有限公司
Automatic aeration-type biological membrane transfer device
ActiveCN103253769ARich varietyReduce outputTreatment with aerobic and anaerobic processesSludgeSewage
The invention belongs to the field of wastewater treatment, and particularly relates to an automatic aeration-type biological membrane transfer device. The automatic aeration-type biological membrane transfer device disclosed by the invention comprises a water channel, a water inlet, a sludge outlet, and a water outlet, wherein the water inlet and the water outlet are located at the lower side of the center line of a spindle, and distributed in a diagonal line on the water channel; the water inlet, the sludge outlet and the water outlet are arranged at different sides of the water channel; the device also comprises a rotating ring; the rotating ring is arranged inside the water channel through a rotating shaft; and the rotating ring is connected with a drive device. The automatic aeration-type biological membrane transfer device adopts a form of the rotating ring, drives the rotating ring to rotate by virtue of rotation of the rotating shaft, alternatively and fully contacts the air and sewage, and carries out oxygen transfer and mass transfer movement. The automatic aeration-type biological membrane transfer device is integrated with the characteristics of large hang membrane area of an elastic solid filler, high processing load, strong impact resistance and the like, and has the advantages of being simple in structure of a biological turntable, low in construction cost, simple to run and maintain, and the like.
Owner:SCIMEE TECH & SCI CO LTD
Continuous type sewage treatment method and device
ActiveCN108793614AStable denitrification processImprove nitrogen removal efficiencyTreatment using aerobic processesTreatment with anaerobic digestion processesNitrogen cycleNitration
The invention relates to the field of sewage treatment and provides a continuous type sewage treatment method. Glycan bacterium active sludge is subjected to anaerobic reaction to transform organic matters in sewage into intracellular matters for storage, and then the intracellular matters are precipitated and separated to obtain sewage supernatant and the glycan bacterium active sludge. The sewage supernatant is subjected to nitration reaction to transform ammonia nitrogen into nitrate nitrogen; the glycan bacterium active sludge is aerated to rapidly start an intracellular storage metabolicpathway; meanwhile, the content of intracellular storage substances is kept. The sewage subjected to nitration treatment, and the aerated glycan bacterium active sludge are subjected to denitrification reaction to obtain a denitrified sludge-water mixture. The denitrified mud-water mixture is subjected to aerobic reaction to adjust the property of sludge. Then secondary sedimentation and separation are carried out to obtain output water and the glycan bacterium active sludge; the glycan bacterium active sludge obtained by the sedimentation is refluxed into an anaerobic tank to realize continuous type sewage treatment. The method provided by the invention takes glycan bacterium metabolism as a core, and carbon circulation and nitrogen circulation of the glycan bacterium metabolism are coupled to finish synchronous and efficient removal of sewage organic matters and nitrogen.
Owner:INST OF ENVIRONMENTAL MEDICINE & OCCUPATIONAL MEDICINE ACAD OF MILITARY MEDICINE ACAD OF MILITARY SCI
Aerobic internal circulation bio-separation reactor
PendingCN108046418ATo promote metabolismSave land areaSustainable biological treatmentBiological water/sewage treatmentActivated sludgeModel selection
The invention provides an aerobic internal circulation bio-separation reactor. By arranging a partition plate, an aerobic reaction region and a settling region are combined, the land area is directlysaved, and a better choice is supplied to a sewage treatment station with the compact floor area; activated sludge is vertically and circularly moved in an equipment reactor, the motion height difference is large, the activated microbial activity is larger, and metabolism is faster; shallow aeration is adopted, operating pressure of power equipment can be saved, the model selection power of the power equipment is directly lowered, and the energy-saving effect is achieved; aerobic shallow aeration and inclined tube sedimentation are adopted to be combined, and the effluent quality is better; the aerobic internal circulation bio-separation reactor is more sufficient in aerobic reaction, the sludge age is prolonged, and the effluent quality is more limpid.
Owner:WUHAN SHUIBO ENVIRONMENTAL PROTECTION TECH CO LTD
Continuous flow SBR domestic sewage treatment method and device
InactiveCN110950425AImprove capacity utilizationEasy loadingWater contaminantsWater distributersSewage treatmentProcess design
The invention discloses a continuous flow SBR domestic sewage treatment method and a device. The device comprises a reaction container, partition plates, a drainage mechanism, a water inlet pipe, an aeration device and a control mechanism; the interior of the reaction container is divided into at least four reaction areas by the partition plates, and the four reaction areas comprise a first reaction area, a second reaction area, a third reaction area and a fourth reaction area; the bottoms of the reaction areas are communicated with each other, the water inlet pipe is longitudinally mounted inthe middle in the reaction container, and the lower end of the water inlet pipe is communicated with the lower ends of the reaction areas. The method comprises the following steps: water introductionstage, aeration stage, precipitation stage, continuous water introduction stage, and continuous water discharge stage. According to the method, the traditional SBR reaction container is subjected tospace division, the continuous flow process design is achieved through the water level pressure difference, the water inlet pipe is arranged in the middle of the reaction container for unified water inflow, the automatic control procedure is simplified, meanwhile, an anoxic stirring link is omitted, and the treatment period is shortened on the premise that it is guaranteed that effluent reaches the fifth type of water on the earth surface.
Owner:GUANGZHOU HUALYU ENVIRONMENTAL PROTECTION SCI & TECH CO LTD
Deep well aeration film bioreactor waste water treatment process and apparatus
ActiveCN101323482BImprove mass transfer efficiencyIncrease concentrationWater/sewage treatment bu osmosis/dialysisSustainable biological treatmentActivated sludgeHigh density
Owner:SHANGHAI GUANGLIAN ENVIRONMENTAL & GEOTECHNICAL ENG CO LTD
Efficient sewage treatment process and device based on electron current directional adjustment and control
ActiveCN105481208AImprove processing efficiencyHigh removal rateTreatment by combined electrochemical biological processesWater contaminantsSludgeFiltration
The invention relates to an efficient sewage treatment process and device based on electron current directional adjustment and control and belongs to the technical field of sewage (wastewater) treatment. In the process, an anaerobic fermentation electron generation chamber, a heterotrophic-autotrophic denitrification chamber and an aerobic membrane separation chamber are included. After low-concentration organic sewage enters the anaerobic fermentation electron generation chamber, particulate organic matter and part of dissolved organic matter are intercepted and adsorbed by filler and form an extracellular current under the action of microorganisms used in a follow-up autotrophic denitrification process. Meanwhile, by the utilization of a microfiltration / ultrafiltration membrane separation process, the load in the sewage treatment process is increased, solid-liquid separation efficiency is guaranteed, and outflow water quality meets high-standard sewage (wastewater) treatment reuse requirements. According to the process, the removal effect of nutrient elements including nitrogen is intensified by adjusting the flowing direction of the electron current in the organic sewage treatment process, the system sludge yield is lowered, and membrane filtration pollution is relieved. Through the process, the low-concentration organic sewage can be treated efficiently at normal temperature (higher than 15 DEG C), and running energy consumption for sewage treatment is lowered remarkably.
Owner:TONGJI UNIV
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