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180 results about "Anaerobic membrane bioreactor" patented technology
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Anaerobic membrane bioreactor or AnMBR is the name of a technology utilized in wastewater treatment. AnMBR works by using a membrane bioreactor (MBR). The sewage is filtered and separated leaving the effluent and sludge apart. This sludge is treated anaerobically by mesophilic bacteria which release methane as a byproduct. The biogas can later be combusted to generate heat or electricity. AnMBR is considered to be a sustainable alternative for sewage treatment because the energy that can be generated by the methane combustion can exceed the energy required for maintaining the process.
External anaerobic membrane bioreactor and waste water purification technology thereof
InactiveCN102153251AReduce operating energy consumptionImprove degradation efficiencyWaste based fuelTreatment with anaerobic digestion processesGratingAfter treatment
The invention provides an external anaerobic membrane bioreactor comprising an anaerobic tank, a tubular membrane component, tubular ultrafiltration membrane elements and a clear water tank, wherein the tubular ultrafiltration membrane elements are vertically arranged in parallel in the tubular membrane component. The invention also provides a corresponding waste water purification technology of the external anaerobic membrane bioreactor. The waste water purification technology includes the steps as follows: firstly conducting purification treatment on waste water to be treated in the anaerobic tank, collecting biogas which is generated after treatment, filtering and separating the treated waste water in sequence by a fine grating and the tubular ultrafiltration membrane elements, at last leading out the leached clear water, backwashing and chemically washing the tubular ultrafiltration membrane elements at time intervals, drip-washing the collected biogas, and then pumping the biogas together with sewage into the tubular ultrafiltration membrane elements, so that the washing effect of the inner walls of the tubular ultrafiltration membrane elements can be improved. As for the external anaerobic membrane bioreactor and the waste water purification technology thereof, the energy consumption in operation is low, the quality of effluent is good, and blockage does not happen easily.
Owner:上海膜达克环保工程有限公司
Novel anaerobic membrane bioreactor
InactiveCN101781059AReduce pollutionIncrease cross flow velocityTreatment with anaerobic digestion processesWater/sewage treatment bu osmosis/dialysisHigh concentrationActivated sludge
The invention discloses a novel anaerobic membrane bioreactor, which comprises an anaerobic biomembrane zone, an anaerobic activated sludge zone, a membrane disengagement zone and the like. Water inlet tubes of the novel anaerobic membrane bioreactor are positioned on the upper part of the novel anaerobic membrane bioreactor and uniformly distribute water through a triangular overflow weir. A gas collection chamber is positioned on the top and is connected with two pipelines, wherein one pipeline is used for exhausting and the other one is connected with gas recycle pump. An aerobic gas is recycled to the bottom of the reactor and is aerated through an aerator so that membrane fouling can be effectively reduced. A round table and a cylindrical separation plate are arranged in the middle of the reactor and divide the reactor into the anaerobic biomembrane zone, the anaerobic activated sludge zone and the membrane disengagement zone. A membrane module is arranged on the membrane disengagement zone in a form of immersion and water is pumped out of the membrane module by a pump. The device can be applied to treatment of high-concentration organic waste water in municipal engineering, food industry, industry and the like, and is in particular applied to the places where the land resource is in short supply because of a small occupied area.
Owner:HOHAI UNIV
Method for treating sewage by using anaerobic membrane bioreactor to remove sulphur and nitrogen
InactiveCN103588296AReduce consumptionSimple processTreatment with anaerobic digestion processesActivated sludgeSulfide
The invention provides a method for treating sewage by using an anaerobic membrane bioreactor to remove sulphur and nitrogen. The method comprises the steps that the anaerobic reactor containing activated sludge of thiobacillus denitrificans is provided, the to-be-treated sewage containing nitrate and / or nitrite and sulfide is led into the anaerobic reactor to be in contact with the thiobacillus denitrificans, the thiobacillus denitrificans takes the nitrate as an electron acceptor to oxidize the sulfide in the wastewater into elemental sulfur and reduce the nitrate and / or nitrite into nitrogen to remove the nitrate and / or nitrite at the same time, the sewage is further in contact with a separation membrane in a membrane component after the nitrate and / or nitrite and sulfide are removed through the thiobacillus denitrificans, the separation membrane stops most of the thiobacillus denitrificans and other suspension particles, the stopped thiobacillus denitrificans and other suspension particles are kept in the reactor or returned to the reactor, and a filtered liquid is the treated water body. According to the method for treating sewage by using the anaerobic membrane bioreactor to remove sulphur and nitrogen, the process is simple, the energy consumption is low, and sulphur and nitrogen are removed efficiently.
Owner:LG ELECTRONICS CHINA RANDD CENT SHANGHAI CO LTD
Integral anaerobic dynamic membrane bioreactor and method of operation
InactiveCN101428905AWell mixedEnhanced flushingTreatment with anaerobic digestion processesDrive shaftMembrane bioreactor
The invention provides an integral anaerobic dynamic membrane bioreactor and an operation method thereof. The integral anaerobic dynamic membrane bioreactor mainly comprises a main body, a dynamic membrane module and a stirring device, wherein the main body has a hermetical structure; the top of the main body is provided with an air outlet; the side of the main body is provided with a water outlet; the bottom of the main body is provided with a water inlet and a mud outlet; the dynamic membrane module is arranged inside the main body; the inside of the dynamic membrane module is provided with a water outlet pipe which is connected with the water outlet on the main body; the stirring device is arranged on the main body; a transmission shaft of the stirring device passes through the dynamic membrane module; a blade on the transmission shaft is positioned under the dynamic membrane module; and a liquid level sensor is arranged inside the main body. Water automatically flows out after being filtered by a dynamic membrane depending on the pressure difference between the liquid level of a mixture and the water outlet pipe of the reactor. The operation method for the reactor is to operate the reactor by adopting constant liquid level, wherein the water automatically flows out after being filtered by the dynamic membrane module depending on the pressure difference between the liquid level of the mixture in the main body and the water outlet pipe of the dynamic membrane module. The integral anaerobic dynamic membrane bioreactor solves the problem of membrane blocking and reduces the operating cost.
Owner:SHANDONG UNIV
Anaerobic membrane reactor-partial nitrification-anaerobic ammonium oxidation combination device and method
ActiveCN109592785AImprove retention efficiencyReduce the impactWater contaminantsTreatment with aerobic and anaerobic processesHigh carbonEnergy recovery
The invention discloses an anaerobic membrane reactor-partial nitrification-anaerobic ammonium oxidation combination device and method. The device is used for treating sewage by utilizing an anaerobicmembrane bioreactor and a partial nitrification-anaerobic ammonium oxidation combination process, and organic matters in the sewage are removed in the anaerobic membrane bioreactor, so that efficientcarbon-nitrogen separation is realized; part of ammonia nitrogen is converted into nitrite nitrogen under the action of nitrozation in a partial nitrosation reactor; ammonia nitrogen and sub-nitrogengenerate nitrogen to be discharged under the action of anaerobic ammonium oxidation in an anaerobic ammonium oxidation reactor; and nitrate nitrogen can be generated at an anaerobic ammonium oxidation stage, so that an effluent partially flows back to the front end of a nitrosation reactor, nitrate nitrogen is reduced to form nitrite nitrogen, and furthermore, the deep removal of the organic matters and nitrogen is realized. Efficient energy recovery, operation energy consumption reduction, operation stability and high carbon-nitrogen pollutant removal efficiency are realized on the basis that sewage treatment is guaranteed to reach the standard.
Owner:RES CENT FOR ECO ENVIRONMENTAL SCI THE CHINESE ACAD OF SCI
External anaerobic membrane bioreactor
InactiveCN102642922AAvoid churnExtend mud ageTreatment with anaerobic digestion processesHigh concentrationSludge
The invention discloses an external anaerobic membrane bioreactor, which comprises a regulating tank, an anaerobic bioreactor and a membrane case. A water distribution pipe is arranged at the bottom of the anaerobic bioreactor, a three-phase separator is mounted on the upper portion of the anaerobic bioreactor, a sludge circulating pump communicated with the anaerobic bioreactor is disposed outside the same, a micro-porous aerating device is arranged at the bottom of the membrane case, and an ultrafiltration bundle membrane component is mounted in the membrane case. The regulating tank is connected with the water distribution pipe through the anaerobic bioreactor, a water outlet pipe of the anaerobic bioreactor is connected with a water inlet pipe on the upper portion of the membrane case, and a sewage pipe on the lower portion of the membrane case is communicated with the water distribution pipe of the anaerobic bioreactor. By means of the reactor, sludge can be prevented from running away, sludge age can be prolonged, and enrichment of microorganisms is facilitated. Membrane contamination can be effectively alleviated by means of nitrogen flushing, and accordingly service cycle of the membrane component is prolonged, cost for cleaning the membrane component is saved, and secondary pollution caused during cleaning is avoided. The external anaerobic membrane bioreactor is simple in structure, easy to operate and applicable to treatment of high-concentration organic wastewater.
Owner:ZHEJIANG UNIV +1
Three-compartment immersion type anaerobic film bioreactor
InactiveCN101215045AImprove processing efficiencyImprove water qualityWaste based fuelTreatment with anaerobic digestion processesWater qualityAnaerobic microorganisms
The invention discloses a three-compartment immersed anaerobic membrane bioreactor, comprising a buffer chamber, an anaerobic reaction chamber and a membrane filter chamber. A first and a second partition boards are arranged between the anaerobic reaction chamber and the buffer chamber, the height of the first partition board is 3 / 4-4 / 5 of that of the buffer chamber, a passage is arranged under the second partition board, a third and a fourth partition boards are arranged between the anaerobic reaction chamber and the membrane filter chamber, the height of the fourth partition board is 3 / 4-4 / 5 of that of the membrane filter chamber, a second passage is arranged under the third partition board, the anaerobic reaction chamber is internally equipped with a methane aeration stirring device, a communicating pipe is arranged between the buffer chamber and the membrane filter chamber which is internally equipped with a membrane assembly, a water outlet pipe is connected with the upper portion of the membrane assembly, and the bottom portion of the membrane filter chamber is equipped with an exhaust pipe. The invention has high sewage water treatment effect and perfect quality of water outlet, and can wash the membrane assembly without affecting normal metabolism of sensitive anaerobic microorganisms, thereby guaranteeing the operational continuity and stability of the invention.
Owner:TIANJIN POLYTECHNIC UNIV
Internal recycle anaerobic membrane bioreactor with single reaction area
ActiveCN102502957ASmall volumeIncrease concentrationWaste based fuelTreatment with anaerobic digestion processesFiltration membraneSludge
The invention discloses an internal recycle anaerobic membrane bioreactor with a single reaction area. The anaerobic membrane bioreactor comprises a reactor main body, a water (sludge) inlet pipe, a water outlet pipe, an upwelling pipe, a downwelling pipe, a sludge outlet pipe and a methane pipe. A partition plate is arranged in the reactor main body and divides the interior of the reactor main body into an upper part and a lower part, namely a reaction area; the upper part is provided with a second partition plate which divides the upper part into a downwelling area and a membrane module area; and the membrane module area is provided with a membrane module. Membrane pollution is removed by a gas and water backwashing system through methane. Due to the adoption of the membrane module, the volume of the membrane module is smaller than that of the conventional sedimentation area, so the total volume of a reactor is reduced. During treatment of wastewater, the membrane module is a stainless steel micro filtration membrane of which the thickness is 10 to 50 microns; and the granular sludge concentration in the reactor can reach over 60gSSL<-1>, and organic load can reach over 35kgCODm<-3>d<-1> during treatment of starch wastewater. When sludge is digested, a non-woven micro filtration membrane of which the thickness is 1 to 2 microns is adopted, and the residence time can be shortened to be within 15 days.
Owner:TSINGHUA UNIV
Device and method for processing coking wastewater by adopting suspended filler-anaerobic membrane bioreactor
InactiveCN104085988ARealize synchronous removalSimple processTreatment with aerobic and anaerobic processesActivated sludgeChemical oxygen demand
The invention discloses a device and a method for processing a coking wastewater by adopting a suspended filler-anaerobic membrane bioreactor, belonging to the field of coking wastewater treatment. The device comprises an anaerobic reaction pool and a sludge sedimentation pool, wherein a micropore aeration system, a suspended particle packing, a membrane module and a stirring system are arranged inside the anaerobic reaction pool; the activated sludge in the anaerobic reaction pool takes a biological membrane attached to the suspended particle packing as a main component; the suspended activated sludge is collected, separated and discharged out of the system through the sludge sedimentation pool; and synchronous nitrification and denitrification functions of the biological membrane on the suspended packing are enhanced by stirring for fluidization of the stirring system under an anaerobic condition, thereby achieving the treatment effect of synchronously removing chemical oxygen demand (COD) and total nitrogen in the coking wastewater. By adopting the device, the aeration rate is significantly reduced, and the operating cost is reduced. The activated sludge takes the biological membrane in the attached state as the primary component, so that the contact frequency of the activated sludge and the membrane module filtering surface is reduced, and the membrane pollution process is effectively retarded by the scraping effect of the suspended particle packing.
Owner:UNIV OF SCI & TECH BEIJING
Device for relieving membrane pollution of electric reinforced separation membrane and synchronously promoting methane production
InactiveCN108483620ASimple preparation processImprove electrochemical performanceTreatment by combined electrochemical biological processesWater contaminantsSeparation technologyWater quality
The invention provides a device for relieving membrane pollution of an electric reinforced separation membrane and synchronously promoting methane production. A membrane separation technology, an anaerobic microbial technology and a bioelectrochemistry technology are organically combined. The device relates to the technical field of sewage treatment. The device provided by the invention belongs toan integrated immersed anaerobic membrane bioreactor, which comprises a reactor main body, a separation membrane assembly, a three-phase separator, a pressure detection device, a water pump, a temperature control device, a power supply device and the like, wherein the separation membrane assembly is made of conductive materials, so that the dual effects of filtering and biological cathodes are achieved. The device can reach the following effects that on one hand, the sludge loss can be reduced through interception; meanwhile, electrical bias is applied onto the surface of the membrane; the occurrence of membrane pollution is relieved through the static electricity repulsion effect; on the other hand, through the introduction of an electric field, the growth and metabolism of electric active microbes can be stimulated; the organic matter conversion efficiency in the anaerobic reaction is enhanced, so that the treatment efficiency and the outlet water quality can be improved; in addition, energy sources can be recovered from sewage in a biogas mode; the operation energy loss can be supplemented.
Owner:DALIAN UNIV OF TECH
Photocatalytic postposed internal-circulation anaerobic fluidized membrane bioreactor and working method thereof
InactiveCN103073150AEasy to handleAchieve the purpose of recyclingWater/sewage treatment by irradiationWaste based fuelFiberPhotocatalytic reaction
The invention relates to a photocatalytic postposed internal-circulation anaerobic fluidized membrane bioreactor. The photocatalytic postposed internal-circulation anaerobic fluidized membrane bioreactor comprises a reaction barrel, a gas stripping barrel, a three-phase separator and a membrane assembly, wherein a water inlet pipe and a gas inlet pipe are arranged at the bottom of the reaction barrel; and the membrane assembly is a cylindrical ceramic membrane loaded with nano-titanium dioxide particles, or the membrane assembly is a hollow fiber ultrafiltration membrane of which a light titanium dioxide particle mesh is hung on the outer surface. The invention further discloses a working method of the photocatalytic postposed internal-circulation anaerobic fluidized membrane bioreactor. An internal-circulation anaerobic treatment technology and a titanium dioxide photocatalytic technology are combined, and advantages of an anaerobic membrane bioreactor and a photocatalytic bioreactor are combined, so that quality of outlet water is obviously improved; and the membrane assembly is arranged at a supernatant part of a three-phase separation zone and doses not directly contact sludge, and nano-titanium dioxide has a photocatalytic effect, so that membrane pollution is greatly reduced, the service life of the membrane assembly is prolonged, and manpower and material resources required in a membrane replacing cycle are reduced.
Owner:SHANDONG UNIV
Immersed type anaerobic membrane bioreactor capable of effectively controlling membrane pollution and treatment method
InactiveCN105110466AReduce pollutionExtended service lifeTreatment with anaerobic digestion processesReaction zoneThree-phase
The invention relates to a membrane bioreactor, in particular to an immersed type anaerobic membrane bioreactor capable of effectively controlling membrane pollution and a treatment method. A methane collection device is arranged at the top end of the bioreactor; a sludge discharge pipe is arranged at the bottom of the bioreactor; the bioreactor internally comprises a membrane component, a three-phase separator and a main reaction zone from top to bottom sequentially; a water inlet pipe is arranged at the bottom of the bioreactor; a gas distribution device is arranged at the upper part of the three-phase separator; a water outlet pipe and a washing pipe are all connected with the membrane component. By adopting the membrane bioreactor provided by the invention, membrane pollution can be reduced effectively, the service life of a membrane is prolonged, the treatment capacity of the anaerobic membrane bioreactor to pollutants is enhanced and in-situ flushing of the membrane component is realized.
Owner:QINGDAO INST OF BIOENERGY & BIOPROCESS TECH CHINESE ACADEMY OF SCI
Facultative anaerobic membrane bioreactor wastewater treatment device and treatment process thereof
InactiveCN103708686AEasy to handleStable water productionTreatment with anaerobic digestion processesTreatment with aerobic and anaerobic processesTreatment effectUltrafiltration
The invention discloses a facultative anaerobic membrane bioreactor wastewater treatment device which comprises a device body provided with a water inlet and a water producing port, wherein an intensified anaerobic reaction zone and a composite facultative anaerobic fluidized bed MBR reaction zone are sequentially formed in the device body from the water inlet to the water producing port; the intensified anaerobic reaction zone consists of at least two reaction chambers connected in series; biological stuffing is filled in the reaction chambers; an aeration device is arranged at the bottom of the composite facultative anaerobic fluidized bed MBR reaction zone; the composite facultative anaerobic fluidized bed MBR reaction zone comprises a fluidized bed reaction zone and an MBR reaction zone; fluidized bed stuffing is suspended in the fluidized bed reaction zone; an immersed ultrafiltration membrane component is arranged in the MBR reaction zone; a water production pipeline of the immersed ultrafiltration membrane component is connected with a water production port. The invention also provides a wastewater treatment process for performing wastewater treatment by adopting the wastewater treatment device. The wastewater treatment device and the wastewater treatment process have the advantages of good wastewater treatment effect, stable water production and the like.
Owner:VISBE XIAMEN ENVIRONMENT TECH CO LTD
Sewage treatment system and technology combining separated type anaerobic membrane biology and membrane distillation technology
InactiveCN104355507AEasy to handleNo corrosionWater treatment parameter controlWaste based fuelPeristaltic pumpControl manner
The invention discloses a sewage treatment system and technology combining separated type anaerobic membrane biology and a membrane distillation technology. The sewage treatment system comprises a water inlet pool, an anaerobic membrane bioreactor, a membrane distillation system, a water discharge pool and a programmable logic main control system, wherein the water inlet pool is connected to the anaerobic membrane bioreactor by virtue of a first water pipe; a water inlet pump is arranged on the first water pipe; the anaerobic membrane bioreactor is connected to the membrane distillation system by virtue of a second water pipe; the second water pipe is provided with a vacuum manometer and a peristaltic pump; the membrane distillation system is connected to the water discharge pool by virtue of a fifth pipe; and the programmable logic main control system is connected to the whole sewage treatment system in a controlling manner. According to the sewage treatment system and technology combining separated type anaerobic membrane biology and the membrane distillation technology, the problems that removal of organisms, phosphorus, nitrogen and the like in the discharged water of an existing anaerobic membrane bioreactor is not thorough, the national emission standard cannot be reached, and the energy consumption and cost for subsequent advanced treatment such as reverse osmosis are high are solved.
Owner:HOHAI UNIV
Sewage nitrogen and phosphorus removal method and device
InactiveCN104710081ATo achieve a large amount of degradationGuarantee the effect of water dischargeMultistage water/sewage treatmentAmmoniacal nitrogenWater flow
The invention discloses a sewage nitrogen and phosphorus removal method and device. The device comprises a water inlet tank (1), an anaerobic membrane bioreactor (2), an adsorption tank, a gas separation membrane device (11) and an ammonia nitrogen absorption tank (13) which are connected in sequence, wherein sewage enters the anaerobic membrane bioreactor (2) from the water inlet tank (1) for anaerobic hydration; a vacuum membrane pump (14) and a membrane surface washing device (19) conduct membrane surface washing on the anaerobic membrane bioreactor (2); the sewage after hydration enters the adsorption tank for adsorption phosphorus removal; the sewage after adsorption phosphorus removal and alkalinity medical liquid react; the sewage is separated into purified water and ammonia gas after the sewage enters the gas separation membrane device (11); the ammonia gas enters the ammonia nitrogen absorption cell (13) after the ammonia gas reacts with acidity medical liquid; purified water flows out from a water outlet. According to the invention, 99% of ammonia nitrogen (NH3-N) is removed and recovered; 98% of phosphorus (P) is removed and recovered; water outlet effect is good; new energy is provided; energy consumption is reduced.
Owner:HOHAI UNIV
Anaerobic composite type membrane bioreactor combined system and method for treating mixed waste water
InactiveCN101121566AImprove operating conditionsTreatment with aerobic and anaerobic processesAutomatic controlConnection control
The invention relates to an anaerobic composite membrane bioreactor combination system and a method for treating mixed wastewater. The anaerobic generator is placed in an incubator, and its water inlet is respectively connected to a submersible pump, an alkali adding tank, and a phosphorus adding tank in a raw water tank. tank; the inlet and outlet of the incubator are respectively connected to the outlet of the submersible pump in the tap water tank and the water inlet of the tap water tank; the composite membrane bioreactor has built-in composite packing, aeration head, membrane module, and membrane module outlet connection The water outlet pump controlled by the automatic control programmer; the water outlet of the reaction zone in the anaerobic generator is connected to the water inlet of the composite membrane bioreactor, and the return port of the composite membrane bioreactor is connected to the water inlet of the anaerobic generator through the reflux pump. The mixed wastewater from the domestic waste transfer station adjusts the pH to 7.0-8.5 with alkali, and supplements phosphorus, then enters the anaerobic generator, and then overflows into the composite membrane bioreactor. The effluent is sucked by the effluent pump, and part of the sludge at the outlet is The mixed solution is returned to the anaerobic generator.
Owner:DONGHUA UNIV
Anaerobic sewage treatment device and anaerobic sewage treatment process
ActiveCN107055813ASolve the problem that the effluent ammonia nitrogen does not meet the standardHigh-efficiency, low-consumption and short-process standard processingWater treatment parameter controlWater contaminantsHigh concentrationTotal nitrogen
The invention discloses an anaerobic sewage treatment device and an anaerobic sewage treatment process. The anaerobic sewage treatment process includes inoculating anaerobic digestion sludge and anaerobic ammonium oxidation sludge into an anaerobic membrane bioreactor and an anaerobic ammonium oxidation reactor; allowing wastewater to sequentially flow through the anaerobic membrane bioreactor, a denitrification reactor and the anaerobic ammonium oxidation reactor, then draining water and allowing a part of water to flow back to the denitrification reactor. The anaerobic sewage treatment device and the anaerobic sewage treatment process have the advantages that biogas energy can be recycled by the anaerobic membrane bioreactor, organic pollutants can be removed by the anaerobic membrane bioreactor, effects of removing nitrogen by denitrification and pre-selecting floras can be realized by the denitrification reactor, total nitrogen can be removed by an anaerobic ammonium oxidation pond, and the nitrogen removal aeration quantities can be effectively reduced by the anaerobic ammonium oxidation pond; the anaerobic sewage treatment device and the anaerobic sewage treatment process can be used for high-concentration organic wastewater, and accordingly the purposes of reaching mainly anaerobic carbon-nitrogen standards and recycling biogas can be achieved; the anaerobic sewage treatment device and the anaerobic sewage treatment process also can be used for treating low-concentration organic wastewater, and accordingly the aeration quantities required in treatment procedures can be reduced to a great extent.
Owner:RES CENT FOR ECO ENVIRONMENTAL SCI THE CHINESE ACAD OF SCI
Sewage treatment system and sewage treatment method of anaerobic fluidized bed-micro aerobic membrane bioreactor
ActiveCN102642926AShort hydraulic retention timeImprove effluent qualityTreatment with aerobic and anaerobic processesActivated sludgeSmall footprint
The invention provides a sewage treatment system and a sewage treatment method of an anaerobic fluidized bed-micro aerobic membrane bioreactor, which aims at solving the problem that an aerobic activated sludge process in the prior art is large in occupied floor space and high in energy consumption. The sewage treatment system is formed by series combination of an anaerobic fluidized bed and a micro aerobic membrane bioreactor, hydrolytic acidification and anaerobic fermentation are performed on sewage firstly through the anaerobic fluidized bed, then the sewage enters the micro aerobic membrane bioreactor, and finally outlet water is discharged in a clean water pool by utilizing a suction pump. The sewage treatment system which is compact in structure, small in occupied area and low in energy consumption and the sewage treatment method are suitable for treatment of urban sewage and industrial sewage containing ammonia nitrogen and organics.
Owner:NAT ENG RES CENT OF URBAN WATER RESOURCE
System and Method for Producing Ethanol and Biogas
InactiveUS20140065685A1Limit and reduce capacityBioreactor/fermenter combinationsBiological substance pretreatmentsDistillationAnaerobic membrane bioreactor
A system and process for producing ethanol and biogas. An incoming feedstock and water is directed to a preparation unit that frees sugar from the feedstock. The feedstock is directed to a fermenter that ferments the sugar to produce a beer that includes ethanol and feedstock. The beer is directed to a distillation unit which separates the ethanol from the feedstock and produces ethanol and whole stillage. The stillage derived is direct to an anaerobic membrane bioreactor unit. The stillage is subjected to anaerobic digestion in the anaerobic digester and this produces mixed liquor that includes suspended solids. Mixed liquor including the suspended solids is directed to the membrane separation unit which filters the suspended solids and produces a concentrated reject (retentate) stream and a backset permeate stream. The backset permeate stream is then mixed with the incoming feedstock.
Owner:VEOLIA WATER SOLUTIONS & TECH SUPPORT
Anaerobic-micro-aerobic membrane bioreactor and operation method thereof
ActiveCN105366806AReduce pollutionReduce pollution loadWaste based fuelTreatment with anaerobic digestion processesFiltration membraneCollection system
The present invention relates to an anaerobic-micro-aerobic membrane bioreactor and an operation method thereof, and belongs to the technical field of waste anaerobic biological treatment. The bioreactor combines an Upflow Anaerobic Sludge Bed body portion with a two stage membrane module, wherein the body portion comprises a granular sludge anaerobic reaction zone, a three-phase separator, a settling zone and a biogas collection system; and the two stage membrane module are an ultrafiltration membrane module and a nano filtration membrane module, respectively, and an aeration system is arranged at the bottom of the ultrafiltration membrane module. Concentrated water trapped by the ultrafiltration membrane module and the nano filtration membrane module flows back to the bottom of the settling zone, and in the micro-aerobic environment, hardly degradable organic matters are further degraded. The volume loading rate of the reactor in treating hardly degradable organic waste water of pharmacy and coal chemistry can reach about 15 kg COD / (m<3>.d). The anaerobic-micro-aerobic membrane bioreactor and the operation method of the present invention solve the problems that in the prior art when the efficient anaerobic reactors represented by UASB treat hardly degradable waste water, the hydraulic retention time is long, the effect is not ideal, the conventional anaerobic membrane bioreactors have significant membrane contamination, and the hardly degradable organics removal effect is poor.
Owner:TSINGHUA UNIV +1
Electrochemical and anaerobic membrane combined biological sewage treatment plant and treatment method thereof
ActiveCN110526346AReduce pollutionReduce viscosityBiological treatment apparatusWater/sewage treatmentSludgeEngineering
The invention provides an electrochemical and anaerobic membrane combined biological sewage treatment plant and a treatment method thereof. The electrochemical and anaerobic membrane combined biological sewage treatment plant comprises a reaction tank in which a sacrificial anode electrode, a non-sacrificial anode electrode and a membrane module cathode are disposed. The electrochemical and anaerobic membrane combined biological sewage treatment plant further comprises a power supply device. A positive electrode of the power supply device is electrically and independently connected to the sacrificial anode electrode and the non-sacrificial anode electrode, respectively, and a negative electrode of the power supply device is electrically connected to the membrane module cathode. According to the present invention, electrochemistry and an anaerobic membrane bioreactor are combined, and pre-removal of pollutants, increase of sludge size and neutralization of sludge surface charges are achieved through electroflocculation; pollutants are electrostatically repelled by means of an electric field, and the morphology of a filter cake layer is improved by a hydrogen evolution reaction, achieving in-situ electrical cleaning of the membrane surface; the activity of microorganisms is stimulated by the electric filed so as to increase the metabolic rate of the microorganisms and promoting amethane yield. Moreover, pH decrease caused by metabolic acid production by microorganisms is mitigated by metal ions from electroflocculation.
Owner:RES CENT FOR ECO ENVIRONMENTAL SCI THE CHINESE ACAD OF SCI
Sewage treatment device and method by combining bio-ferric process and anaerobic MBR method
InactiveCN104649519AReduce pollutionImprove filtering effectMultistage water/sewage treatmentMicrofiltration membraneSludge
The invention discloses a sewage treatment device and a sewage treatment method by combining a bio-ferric process and an anaerobic MBR method. The method comprises the following steps: step 1, acclimating bio-ferric sludge; step 2, pumping sewage into an anaerobic membrane bioreactor (3) from a water inlet pool (1) by virtue of a water inlet pump (2), and mixing the sewage with the acclimated bio-ferric sludge; step 3, periodically detecting the iron content in the anaerobic membrane bioreactor (3); and step 4, pumping the purified water into a water outlet pool (5) from the water outlet of a microfiltration membrane module (6) by virtue of a suction pump (4). According to the sewage treatment device and the sewage treatment method by combining the bio-ferric process and the anaerobic MBR method provided by the invention, the membrane module is difficultly polluted, the effluent quality is high, the sewage treatment and purification time is short, the service life of the bio-ferric sludge is long, the sewage treatment cost is low, and the method and device are suitable for wide popularization and application.
Owner:HOHAI UNIV
Anaerobic membrane bioreactor and forward-osmosis reverse-osmosis combined sewage treatment system
InactiveCN103332835AReduce pollutionImprove processing efficiencyMultistage water/sewage treatmentPeristaltic pumpWater discharge
Owner:HARBIN INST OF TECH
Biogas circulating electromagnetic anaerobic membrane bio-reactor for wastewater treatment
InactiveCN102557250AReduce pollutionGood removal effectWater/sewage treatment by magnetic/electric fieldsWaste based fuelSludgeDistribution system
The invention discloses a biogas circulating electromagnetic anaerobic membrane bio-reactor for wastewater treatment. A reaction tank is separated into a main reaction area and a membrane separation area; the main reaction area and the membrane separation area are communicated at the bottom of the reaction tank; the top in the reaction tank is provided with a biogas collection area; magnetic biological carriers are added into the reaction tank; electrode plates and guide plates are arranged in the main reaction area; the electrode plates are connected with a direct current power supply; membrane components and a membrane washing device are arranged in the membrane separation area; one end of a biogas circulating system on the outer top of the reaction tank is connected with the biogas collection area, and the other end of the biogas circulating system is connected with the membrane washing device; the bottom of the reaction tank is provided with a sludge hopper and a wastewater distribution system; the wastewater distribution system is connected with a wastewater pipeline and a wastewater circulating system; and the water inlet of the wastewater circulating system is communicated with the upper part of the main reaction area of the reaction tank. By the wastewater distribution system, membrane pollution can be reduced, the service life of the membranes is prolonged, and the capacity of treating toxic refractory pollutants of the anaerobic membrane bio-reactor is enhanced.
Owner:XIANGTAN UNIV
Integrated built-in anaerobic membrane bioreactor
InactiveCN107098467AAvoid churnAccurate monitoringWater treatment parameter controlGaseous fuelsPeristaltic pumpHollow fibre membrane
The invention discloses an integrated built-in anaerobic membrane bioreactor including a reaction tank body and a PLC system. A homogenizing stirring blade, a circular heater, a hollow fiber membrane assembly, a liquid level controller and a temperature sensor are disposed in the reaction tank body. A water inlet pipeline, which has a water feeding peristaltic pump, and a bottom sewage draining outlet are arranged below the reaction tank body. The reaction tank body is also provided with a water outlet pipe having a water outlet peristaltic pump. The temperature sensor, the hollow fiber membrane assembly and the liquid level controller are all connected to the PLC system. The built-in anaerobic membrane bioreactor can prevent loss of excess sludge effectively and enrich microorganisms, is not liable to cause membrane contamination, can effectively recycle energy gas, has high safety, is easy to control, and is convenient to operate.
Owner:BEIJING UNIV OF CIVIL ENG & ARCHITECTURE
Inner-loop anaerobic membrane bioreactor treatment method and equipment for high-concentration organic wastewater
ActiveCN104445608AHigh removal rateTo achieve the purpose of short processWater contaminantsWaste based fuelCyclic processHigh concentration
The invention discloses inner-loop anaerobic membrane bioreactor treatment method and equipment for high-concentration organic wastewater. The treatment method of the organic wastewater comprises the following steps: A) inoculating anaerobic sludge into a first reaction chamber and a second reaction chamber; B) transporting the organic wastewater to the first reaction chamber through a water inlet pipe, forming an inner loop through a first three-phase separator, the second reaction chamber, a second three-phase separator and a gas-water separator sequentially, and separating a mixed liquid through a membrane component in the circulating process, so as to obtain produced water; C) enriching methane generated in the first reaction chamber and the second reaction chamber through the first three-phase separator and the second three-phase separator sequentially, feeding to the gas-water separator, separating and then producing methane; and D) separating and then producing methane by the gas-water separator, supplying a part of the methane to the membrane component in a pressurizing manner, feeding to the gas-water separator through the second three-phase separator, so as to form methane circulation aeration. The invention also discloses equipment for achieving the method. The high-concentration organic wastewater (such as farm and sideline food processing industry and livestock and poultry breeding wastewater) is processed by adopting the method disclosed by the invention, thus high-load and short-flow one-step standard reaching can be achieved.
Owner:RES CENT FOR ECO ENVIRONMENTAL SCI THE CHINESE ACAD OF SCI
Anaerobic membrane bioreactor
ActiveCN105060472ASmall volumeIncrease flow rateWaste based fuelTreatment with anaerobic digestion processesParticulatesSludge
The invention discloses an anaerobic membrane bioreactor. The anaerobic membrane bioreactor comprises a tank, the bottom in the tank is provided with a cyclone water distributor, the cyclone water distributor is connected with a water diversion bag arranged outside the tank, the upper portion of the outside of the tank is provided with an anaerobic membrane module connected with the inside of the tank, one end of the anaerobic membrane module is connected with an outlet water pump, and the other end is connected to the water diversion bag through a circulating pump; and the upper portion of the tank is connected with a biogas pressurizing pump, the biogas pressurizing pump is connected to a biogas outlet at the top of the tank, and biogas pressurized by the biogas pressurizing pump is conveyed to the anaerobic membrane module as an anaerobic membrane module stirring gas source. The anaerobic membrane reactor has the advantages of high treatment load, small occupied area, stable quality of outlet water, basically no SS, stable running, engineering investment reduction due to no need of particulate sludge, permanent effectiveness of once added sludge bacterium strain, energy consumption and running cost reduction due to no aerobic treatment of wastewater with low requirements, and basically no manual operation due to high automation degree.
Owner:JINAN LVCHUANG ENVIRONMENTAL TECH CO LTD
Method for efficiently treating nitrogen-containing waste water based on combination of dissimilatory reduction of nitrate into ammonium and denitrification coupling anammox
ActiveCN108328730AEfficient removalImprove low CODTreatment with anaerobic digestion processesWaste water treatment from food industryWater basedActivated sludge
The invention relates to a method for efficiently treating nitrogen-containing waste water based on the combination of dissimilatory reduction of nitrate into ammonium and denitrification coupling anammox. The method comprises the following steps: adding aerobic activated sludge into an anaerobic membrane bioreactor; introducing waste water to be treated into the anaerobic membrane bioreactor through two water inflows so as to realize the synchronous enrichment of dissimilatory nitrate reduction to ammonium (DNRA) bacteria, denitrifying bacteria and anammox bacteria; and successfully startingthe combination of dissimilatory reduction of nitrate into ammonium and denitrification coupling anammox to realize efficient removal of nitrogen in the sewage. According to the method provided by theinvention, combined denitrification processes of denitrification, anammox and DNRA occur simultaneously in the late stage of a process of enriching and culturing DNRA, so that the low chemical oxygendemand (COD) and the low-temperature tolerance of the anammox bacteria are greatly improved, the DNRA bacteria, the denitrifying bacteria and the anammox bacteria exert advantages separately in a same environment, and the denitrification efficiency and the organic matter utilization rate can be greatly improved.
Owner:SHANDONG UNIV
Method for methane production and efficient deep denitrification of urban sewage
ActiveCN109160606AAchieve recyclingIncrease biomassWater contaminantsGaseous fuelsNitrationNitrogen gas
The invention discloses a method for methane production and efficient deep denitrification of urban sewage, and belongs to the technical field of biological treatment of sewage. Municipal sewage firstenters an anaerobic membrane bioreactor, granular sludge converts organic matters in the sewage into methane, and the sludge and dissolved methane are intercepted by a membrane module, so that the collection rate of methane gas is improved, and the dissolved methane in the effluent is reduced as a greenhouse gas for release; the effluent enters a short-range denitrification coupled anaerobic ammonia oxidation reactor together with nitrifying liquid refluxed from a nitrification reactor, and the granular sludge reduces nitrate nitrogen to nitrite nitrogen, and converts the nitrite nitrogen andpart of ammonia nitrogen into nitrogen; next, the effluent enters a short-range nitrification anaerobic ammonia oxidation reactor, and the granular sludge converts part of the ammonia nitrogen into nitrite nitrogen, and then converts the nitrite nitrogen and part of the ammonia nitrogen into nitrogen; the sewage finally enters the nitrification reactor, and the granular sludge oxidizes the nitrite nitrogen and the ammonia nitrogen into nitrate nitrogen, thereby achieving the purpose of deep denitrification.
Owner:HAINAN UNIVERSITY
Double-membrane double-circulation sewage treatment process for enhancing denitrifying phosphorus removal
InactiveCN103755025AAchieve separationAvoid interactionTreatment with aerobic and anaerobic processesFiltrationWater quality
The invention relates to a double-membrane double-circulation sewage treatment process for enhancing denitrifying phosphorus removal. An anaerobic / anoxia membrane bioreactor and an aerobic membrane bioreactor are connected in series so as to enhance denitrifying phosphorus removal through a double-membrane filtration two-way circulation mode. The double-membrane double-circulation sewage treatment process comprises the steps of: firstly, carrying out anaerobic phosphorus release on phosphorus-accumulating bacteria under anaerobic condition, and storing organic matters in inflowing water as poly-beta-hydroxybutyric acid; then circulating supernate subjected to anaerobic phosphorus release to the aerobic membrane bioreactor for carrying out aerobic nitrification and degrading organic matters through a membrane assembly, circulating nitrifying liquid in the aerobic membrane bioreactor to the anaerobic / anoxia membrane bioreactor for carrying out denitrifying phosphorus removal through the membrane assembly; then filtering effluent water by utilizing the membrane assembly, and finally discharging phosphorous-rich sludge, thus realizing the phosphorous removal. According to the double-membrane double-circulation sewage treatment process, the thorough separation of nitrobacterium and phosphorous-accumulating bacteria can be realized, the carbon source competence of different microorganisms and sludge age conflict in the traditional denitrification and phosphorous removal processes can be solved, and the carbon sources and running cost can be saved; the membrane filtration can meet the requirement on the quality of sewage recycled water; the process is simple in flow and convenient to operate.
Owner:CHINA UNIV OF MINING & TECH
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