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52results about How to "Improve the efficiency of biochemical reactions" patented technology

Processing method for produced water for ultra-low permeable oil field reinjection

A processing method for produced water for ultra-low permeable oil field reinjection relates to a waste water processing method which solves the problems of complex operation, high cost, solid content suspended in effluent quality and incapability of medium particle size for achieving the 5, 1, 1 standard of produced water of the ultra-low permeable oil field existing in the existing method for processing oil field produced water. The processing method comprises the following steps: 1. preparing a supernatant; 2. carrying out acclimatization treatment in an activated sludge-biomembrane reaction tank, and then introducing the supernatant; and 3. after precipitation, carrying out hyperfiltration. The processing method adopts an activated sludge-biomembrane compound technology as a reactive agent, can give consideration to long-and-short sludge age, aerobic/anaerobic/anoxic environments, simultaneously removes nutritive materials and hard-degradable organic material in water and has highbiochemical reaction efficiency; the processing method has simple operation and low cost; after the processing method of the invention is adopted, effluence can stably achieve the water quality standard-the 5, 1, 1 standard of produced water of the ultra-low permeable oil field.
Owner:HARBIN INST OF TECH

Micro-fluidic magneto-sensitive immune device based on magnetoresistive biosensor and using method thereof

The invention discloses a micro-fluidic magneto-sensitive immune device based on a magnetoresistive biosensor and a using method thereof. In the micro-fluidic magneto-sensitive immune device, a superparamagnetic bead storage area and an antibody storage area are arranged on an upper cover; a micro-fluidic chip is provided with a first biochemical reaction cavity and a first micro-fluidic channel;in use, the biotinylated superparamagnetic beads and the biotinylated antibodies are sequentially subjected to mixed reaction in the first biochemical reaction cavity and the first microfluidic channel, the reacted superparamagnetic beads marked with the antibodies react with a to-be-detected sample to generate immune protein marked with the superparamagnetic beads, and then the immune protein isreacted and combined with capture antibodies in the magnetic sensor array, so that the superparamagnetic beads are fixed on sensors in the magnetic sensor array for a subsequent detection process. Thecombination of the superparamagnetic beads and the biotinylated antibody in the magneto-sensitive immunoassay is completed in the chip, so that the integration level is improved, the operation stepsof biochemical reaction are simplified, and the biochemical reaction efficiency is improved.
Owner:XI AN JIAOTONG UNIV

Sequencing batch jet-flow driven biochemical reactor

The invention relates to a sequencing batch jet-flow driven biochemical reactor, which comprises a reaction tank, a water inlet pipe, an immersible pump, a first-grade suction jet device with a double-gas-channel annular nozzle, a mixed solution guide pipe, a second-grade multi-nozzle radial jet-flow aerator, a gas supply device, a buoyancy driven water decanter and a driving winch of the water decanter; the first-grade suction jet device with the double-gas-channel annular nozzle is provided with an annular nozzle and inner and outer gas channels; the second-grade multi-nozzle radial jet-flow aerator is installed in the centre of the bottom of the reactor; the buoyancy driven water decanter is installed on the wall of the reaction tank over the horizon line of the reactor; and the driving winch of the water decanter is used for packing up or down the buoyancy driven water decanter through a driving rope. The sequencing batch jet-flow driven biochemical reactor disclosed by the invention can be used for increasing the aeration efficiency, accelerating the dynamic circulation of dynamic water and greatly increasing the mass transfer rate in the biochemical reaction process, so that the biochemical reaction efficiency is increased; and furthermore, the sequencing batch jet-flow driven biochemical reactor disclosed by the invention can also be used for treating various types of sewage, and can be flexibly combined with other sewage treatment processes.
Owner:ENVIRONMENTAL PROTECTION ENERGY SAVING TECHDEV CENT OF NANNING GUI HE SILK IND

Process for deeply treating printing and dyeing wastewater in presence of attapulgite catalyst

The invention discloses a process for deeply treating printing and dyeing wastewater in the presence of an attapulgite catalyst. The process comprises the following steps: collecting the printing and dyeing wastewater subjected to biochemical treatment for the first time into an adjusting tank, adjusting the water quantity and the water quality, feeding into a coagulative precipitation tank for coagulative sedimentation treatment, feeding outlet water of the coagulative precipitation tank into an anaerobic tank for acidification and hydrolysis, performing biochemical treatment on outlet water of the anaerobic tank by adopting an anoxic-aerobic tank with the attapulgite catalyst, removing organic matters, chromaticity and ammonia nitrogen, and discharging by standard. According to the process, the attapulgite catalyst is added during the biochemical treatment of the anoxic-aerobic tank, so that the aerobic biochemical treatment capability and effect are improved, the biochemical treatment effect on difficultly treated printing and dyeing wastewater is enhanced, COD (chemical oxygen demand), chromaticity and ammonia nitrogen in the printing and dyeing wastewater are efficiently removed, and the printing and dyeing wastewater is discharged by standard; the treatment cost of the printing and dyeing wastewater is reduced, the process is convenient to perform, and the practical application of engineering and the technical improvement of existing printing and dyeing wastewater treatment engineering are facilitated.
Owner:ANHUI JIANGHAI ENVIRONMENT ENG

Method and equipment for treating antibiotic mycelium residues

The invention provides a method and equipment for treating antibiotic mycelium residues. According to the method, the antibiotic mycelium residues and water are prepared into a mycelium residue suspension which is subjected to anaerobic fermentation treatment. The invention also provides the equipment for treating the antibiotic mycelium residues, and the equipment comprises a residue water generating device, an anaerobic fermentation device, a gas-liquid separation device positioned above the anaerobic fermentation device, a biogas collection device positioned above the gas-liquid separation device and a riser pipe for communicating the gas-liquid separation device and the anaerobic fermentation device. By using the method and equipment for treating the antibiotic mycelium residues, the mycelium residue suspension obtained after the mixing of the antibiotic mycelium residues and the water is subjected to anaerobic fermentation treatment, so that the inhibition of harmful substances of anaerobic fermentation antibiotics and the like in the conventional antibiotic mycelium residues is overcome, the amount of preponderant bacteria is kept to the utmost extent, the efficiency of anaerobic fermentation is improved, and the method and the equipment have the advantages of small floor area, simple operation, low cost and the like.
Owner:ZHENGZHOU UNIV +1

Domestic sewage treatment device for ship

The invention relates to a domestic sewage treatment device for a ship. An aeration chamber, a precipitation chamber and a membrane chamber are formed in the body of the device respectively; the membrane chamber is a flat cube and is positioned on one side of the body; the aeration chamber and the precipitation chamber form a box type cube which is positioned on the other side of the body; a clapboard of which a half is isolated is arranged in the aeration chamber; the bottom of the precipitation chamber is funnel-shaped, and the top of the precipitation chamber is trumpet-shaped; and a wateroutlet cavity on the upper part of the precipitation chamber is positioned at the central position of the box type cube. Due to the design of the clapboard in the aeration chamber, a plug flow movement locus is formed while sewage is aerated by using an aerator at the bottom of the aeration chamber, so that higher biochemical reaction efficiency is realized for sewage; and by improving the structure of the precipitation chamber, the chemical oxygen demand (COD), biochemical oxygen demand after 5 days (BOD5) and total suspension solid (TSS) value can be lowered effectively. By improving the water outlet cavity of the precipitation chamber, a liquid in the precipitation chamber can keep in stable state no matter which direction the device is inclined in, and the stability of the device is further enhanced.
Owner:安庆泰邦船舶科技有限公司

Treatment process for tannery wastewater

The invention discloses a treatment process for tannery wastewater and relates to the technical field of sewage treatment. The treatment process comprises the following steps: enabling high-concentration wastewater to flow into a grid canal and an adjusting tank 1, performing pretreatment through coagulating sedimentation, Fenton oxidation and coagulating sedimentation, and feeding the effluent into a pre-hydrolysis acidification tank; enabling floor washing water to flow into the grid canal and an adjusting tank 2, enabling the effluent to flow into the pre-hydrolysis acidification tank, mixing the effluent with the high-concentration wastewater, and performing hydrolysis and acidification; pumping the effluent into a UASB (upflow anaerobic sludge blanket) reactor, enabling the effluent to flow into a settling pond 1, enabling upper clear water of the settling pond 1 to flow into an air stripping tank, further feeding the effluent into a primary A / O (anoxic / oxic) tank, enabling the effluent to flow into a settling pond 2, enabling upper clear water to flow into a secondary A / O tank, feeding the effluent into a settling pond 3, and feeding upper clear water into a middle water tank; enabling boiler water to flow into the grid canal and an adjusting tank 3, performing coagulating sedimentation, and enabling upper clear water into the middle water tank; and filtering the effluentby using a fiber sphere filter, and feeding the effluent into a monitoring tank. By adopting the treatment process, a good treatment effect on pollutants such as SSs (suspended solids), CODs (chemical oxygen demands), ammonia nitrogen and organic matters in tannery wastewater can be achieved, and the effluent can meet the emission standard of GB 21902-2008.
Owner:安徽环境科技集团股份有限公司

Dynamic composite sludge membrane treatment process

The invention provides a dynamic composite sludge membrane treatment process and belongs to the technical field of environmental protection and water treatment. A dynamic composite sludge membrane reaction tank is filled with a multiphase flow-dynamic membrane microbial carrier filler, and meanwhile reflux is conducted on a part of active sludge in a follow-up settling pond, so that co-existence of activated sludge suspending in water and a biological membrane attached to the filler is formed in the dynamic composite sludge membrane reaction tank, aerobic microbes can grow on the activated sludge and also grow on the filler, the activated sludge and the filler perform fluidization motion under an aeration effect to fully perform contact reaction with organic matter in the water of the dynamic composite sludge membrane reaction tank, so that the utilization rate of the dynamic composite sludge membrane reaction tank is greatly improved, the sewage treatment amount under the same scale is doubled, the sludge discharging amount is small, and the sludge yield is only 30% of the yield of a transitional process. By adopting the dynamic composite sludge membrane treatment process, the size, only one half of the size required by the conventional process, of the dynamic composite sludge membrane reaction tank can completely meet the demand in the whole wastewater treatment process.
Owner:丁杰

Wastewater treatment device and wastewater treatment method thereof

The invention relates to a wastewater treatment device and a wastewater treatment method thereof. The wastewater treatment device mainly comprises an aerobic expanded bed, an oxygenator, a circulating pump, a feeding pump, a feeding tank, a heating pump, an air pump, a heater and a data control cabinet. According to the invention, by controlling of the rate of circulating water flow, operation of the aerobic expanded bed in an expansion state is realized, so short circuiting water flow is avoided, and organic matter removal loading is improved; a biochemical reaction and oxygen dissolution of the wastewater treatment device are separately completed and independently controlled, so mutual interference of oxygen dissolution and biochemistry performed in a same space in a traditional biochemical process is avoided, and optimization of processes of the biochemical reaction and the oxygen dissolution can be synchronously realized; the aerobic expanded bed and the oxygenator can adopt a high equipment height, and the thickness of a material filling area of the aerobic expanded bed is improved, so the occupied area of a land is reduced, and the efficiency of oxygen dissolution is improved; and the wastewater treatment device has the advantages of less investment, saved occupied land area, high benefits, simple and convenient operation, stable treatment effect, capability of greatly reducing manual labor intensity, and high economic benefits.
Owner:CHINA PETROLEUM & CHEM CORP +1

Method for treating cyclization wastewater generated in production process of epoxy chloropropane

The invention belongs to the technical field of high-salt and high-organic matter wastewater treatment, and relates to a method for treating cyclization wastewater generated in the production processof epoxy chloropropane. The treatment method comprises the steps of (1) pretreatment, (2) catalytic oxidation, (3) electrodialysis and (4) aftertreatment. The method adopts a hydrogen peroxide-catalyst combination mode, and is characterized in that the use amount of hydrogen peroxide is reduced; through contact with the catalyst, the degradation speed of organic matters is increased, the reactiontime is shortened, the residence time of cyclized wastewater in the reaction tank is shortened, and the occupied area and equipment investment of the reaction tank are reduced. Salt and organic matterare separated through electrodialysis, and meanwhile, saline water is concentrated, the load of multiple-effect evaporation is reduced, and the steam consumption is reduced. In biochemical treatment,due to reduction of salt, the activity of strains is improved, and the efficiency of biochemical reaction is greatly improved; In addition, the concentration of salt is improved through electrodialysis concentration, so that the amount of treated water is reduced, and the sewage treatment difficulty is reduced.
Owner:HUIZHI ENG SCI & TECH CO LTD

Sewage treatment system and sewage treatment process for strengthening efficient utilization of raw water carbon source

The invention discloses a sewage treatment system and a sewage treatment process for strengthening efficient utilization of a raw water carbon source, and belongs to the technical field of water treatment. The system comprises a pretreatment system, a front super-effect separation system, a carbon source recovery system, a pure membrane MBBR biochemical system, a rear super-effect separation system and a sludge treatment system. The sewage treatment process includes: firstly, waste residues and sand in sewage are removed through a pretreatment system, then the pretreated sewage enters a frontsuper-effect separation system, and most of insoluble COD, TP, TN, SS and other pollutants are subjected to enhanced removal; then the sludge generated by the front super-effect separation process ishydrolyzed and fermented through a carbon source recovery system, and the dissolved-state high-quality carbon source is extracted from the sludge for denitrification of a subsequent biochemical system; and soluble COD, NH3-N and TN are subjected to biochemical treatment through a pure membrane MBBR biochemical system and then enter a rear super-effect separation system. According to the system andthe process, the effluent can stably reach the standard of quasi-surface IV or quasi-surface III type water.
Owner:QINGDAO SPRING WATER TREATMENT

Pretreatment method of waste emulsion

The invention discloses a pretreatment method of waste emulsion, and belongs to the technical field of sewage treatment. The pretreatment method of the waste emulsion comprises the following steps: sequentially carrying out primary electrochemical demulsification reaction, primary sludge-water separation, electro-catalytic oxidation reaction, sludge-water separation, and / or electro-Fenton reaction, and sludge-water separation, or carrying out electro-Fenton reaction and then electro-catalytic oxidation reaction, iron-carbon micro-electrolysis reaction, Fenton reaction and sludge-water separation on waste emulsion stock solution, and enabling obtained wastewater to enter a biochemical reaction system for up-to-standard sewage discharge treatment. The pretreatment method of the waste emulsion is moderate in one-time investment, low in operation cost, high in automation degree and clear in effluent, and gives consideration to wastewater of other processes of enterprises; one-time treatment of the wastewater is achieved, concentrated liquid and secondary pollution are avoided, and the wastewater treated through the wastewater emulsion pretreatment method can directly enter a subsequentbiochemical system to be subjected to up-to-standard sewage discharge treatment.
Owner:浙江美纳环保科技有限公司

Processing method for produced water for ultra-low permeable oil field reinjection

A processing method for produced water for ultra-low permeable oil field reinjection relates to a waste water processing method which solves the problems of complex operation, high cost, solid contentsuspended in effluent quality and incapability of medium particle size for achieving the 5, 1, 1 standard of produced water of the ultra-low permeable oil field existing in the existing method for processing oil field produced water. The processing method comprises the following steps: 1. preparing a supernatant; 2. carrying out acclimatization treatment in an activated sludge-biomembrane reaction tank, and then introducing the supernatant; and 3. after precipitation, carrying out hyperfiltration. The processing method adopts an activated sludge-biomembrane compound technology as a reactive agent, can give consideration to long-and-short sludge age, aerobic / anaerobic / anoxic environments, simultaneously removes nutritive materials and hard-degradable organic material in water and has highbiochemical reaction efficiency; the processing method has simple operation and low cost; after the processing method of the invention is adopted, effluence can stably achieve the water quality standard-the 5, 1, 1 standard of produced water of the ultra-low permeable oil field.
Owner:HARBIN INST OF TECH

A method and equipment for treating antibiotic residue

The invention provides a method and equipment for treating antibiotic mycelium residues. According to the method, the antibiotic mycelium residues and water are prepared into a mycelium residue suspension which is subjected to anaerobic fermentation treatment. The invention also provides the equipment for treating the antibiotic mycelium residues, and the equipment comprises a residue water generating device, an anaerobic fermentation device, a gas-liquid separation device positioned above the anaerobic fermentation device, a biogas collection device positioned above the gas-liquid separation device and a riser pipe for communicating the gas-liquid separation device and the anaerobic fermentation device. By using the method and equipment for treating the antibiotic mycelium residues, the mycelium residue suspension obtained after the mixing of the antibiotic mycelium residues and the water is subjected to anaerobic fermentation treatment, so that the inhibition of harmful substances of anaerobic fermentation antibiotics and the like in the conventional antibiotic mycelium residues is overcome, the amount of preponderant bacteria is kept to the utmost extent, the efficiency of anaerobic fermentation is improved, and the method and the equipment have the advantages of small floor area, simple operation, low cost and the like.
Owner:ZHENGZHOU UNIV +1

Low-dissolved-oxygen biochemical reaction system and process thereof

The invention belongs to the technical field of water treatment, and particularly relates to a low-dissolved-oxygen biochemical reaction system and a process thereof. The low-dissolved-oxygen biochemical reaction system comprises two membrane pools, each membrane pool is internally provided with a membrane assembly, the bottom of each membrane assembly is provided with an aeration device, and theaeration devices are used for flushing and aerating the membrane assemblies; the system further comprises a reaction channel with an opening in the top, a partition wall and at least one upper-openingand lower-opening flow guide plate set. The reaction channel is communicated with the membrane pool through a lower opening flow guide plate set; the partition wall is vertically arranged at the bottom end in the reaction channel; at least one upper opening flow guide plate set and at least one lower opening flow guide plate set are fixedly arranged in the reaction channel at intervals; at the moment, a dissolved oxygen-containing solution generated by membrane scouring aeration is pushed to flow in the reaction channel by taking gas stripping as power, dissolved oxygen is gradually consumedand reduced in the process that water flow flows through the reaction channel, synchronous nitrification and denitrification are further realized under the required anoxic condition, and the use of aliquid circulating pump is reduced.
Owner:BEIJING HUIHENG ENVIRONMENTAL PROTECTION ENG CO LTD

Net-like basalt fiber combined-type baffling artificial wetland system

The invention provides a net-like basalt fiber combined-type baffling artificial wetland system. The net-like basalt fiber combined-type baffling artificial wetland system comprises a pool body, an artificial wetland sewage distributing area, an artificial wetland effluent collecting area, and separating sections, wherein the separating sections are arranged at interval so that the pool body is separated into conventional filler sections, the pool body comprises a bottom wall, long side walls and short side walls, the artificial wetland sewage distributing area and the artificial wetland effluent collecting area are respectively positioned at the outer sides of the two short side walls, the separating sections are installed parallel to the short side walls and butted with the bottom wall,the separating sections are extended in a direction from one long side wall to the other long side wall, the separating section comprises a separating plate and a net-like basalt fiber filler base groove, two neighboring separating sections are reversely installed, two neighboring conventional filler sections are communicated by the net-like basalt fiber filler base groove. Compared with the priorart, the net-like basalt fiber combined-type baffling artificial wetland system is capable of adopting a basalt fiber base material, and efficiently defouling, and good in effluent quality.
Owner:SOUTHEAST UNIV

Sewage treatment system and sewage treatment process based on super-effect separation

The invention discloses a sewage treatment system and a sewage treatment process based on super-effect separation, and relates to the technical field of water treatment. The technical problems that inthe prior art, the high-concentration organic wastewater treatment process is complex, and the treatment cost is high are solved. The system comprises a pretreatment system, an anaerobic reactor anda super-effect separation system, which are connected in sequence; the super-effect separation system comprises a mixing tank, a magnetic seed loading tank, a flocculation reaction tank and an inclined tube sedimentation tank; a mud scraper is arranged in the inclined tube sedimentation tank; the bottom of the inclined tube sedimentation tank is connected with a sludge return pipe, and the other end of the sludge return pipe is connected with the magnetic seed loading tank; the sludge return pipe is used for feeding the coagulated flocs containing the magnetic seeds into the magnetic seed loading tank; the bottom of the inclined tube sedimentation tank is also connected with a residual sludge return pipe, and the other end of the residual sludge return pipe is sequentially connected with ahigh-speed shearing machine and a magnetic separator. The sewage treatment system disclosed by the invention is good in treatment effect, can reach the sewer discharge standard, and is more energy-saving and environment-friendly.
Owner:QINGDAO SPRING WATER TREATMENT

Domestic sewage treatment device for ship

The invention relates to a domestic sewage treatment device for a ship. An aeration chamber, a precipitation chamber and a membrane chamber are formed in the body of the device respectively; the membrane chamber is a flat cube and is positioned on one side of the body; the aeration chamber and the precipitation chamber form a box type cube which is positioned on the other side of the body; a clapboard of which a half is isolated is arranged in the aeration chamber; the bottom of the precipitation chamber is funnel-shaped, and the top of the precipitation chamber is trumpet-shaped; and a water outlet cavity on the upper part of the precipitation chamber is positioned at the central position of the box type cube. Due to the design of the clapboard in the aeration chamber, a plug flow movement locus is formed while sewage is aerated by using an aerator at the bottom of the aeration chamber, so that higher biochemical reaction efficiency is realized for sewage; and by improving the structure of the precipitation chamber, the chemical oxygen demand (COD), biochemical oxygen demand after 5 days (BOD5) and total suspension solid (TSS) value can be lowered effectively. By improving the water outlet cavity of the precipitation chamber, a liquid in the precipitation chamber can keep in stable state no matter which direction the device is inclined in, and the stability of the device is further enhanced.
Owner:安庆泰邦船舶科技有限公司

Efficient denitrification system and method for treating aged landfill leachate through combination of humic filler aerobic fixed bed and anoxic MBR

The invention belongs to the field of wastewater treatment, and discloses an efficient denitrification system and method for treating aged landfill leachate through combination of a humic filler aerobic fixed bed and an anoxic MBR. The method includes 1) introducing aged landfill leachate into the humic filler aerobic fixed bed for aerobic nitrification reaction treatment to obtain treated effluent; (2) enabling the effluent treated in the step (1) to automatically flow into the anoxic MBR for anoxic denitrification treatment. Firstly, sufficient aerobic nitrification is performed by utilizingthe strong nitrification capacity of microorganisms existing in a humic filler of the humic filler aerobic fixed bed to realize sufficient nitrification of ammonia, and sufficient denitrification isachieved through combination with the anoxic MBR. Sufficient nitrate is generated by utilizing the sufficient aerobic nitrification reaction in the previous step, so that the sufficient nitrate in thedenitrification of the anoxic MBR is ensured, a good denitrification condition is provided for the anoxic MBR, and finally, the high-efficiency and low-consumption removal of total nitrogen is realized.
Owner:NANJING UNIV +1
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