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78results about How to "Less amount of residual sludge" patented technology
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Low-energy-consumption low-carbon-emission economical energy-saving urban sewage treatment method
ActiveCN102701521AEasy to handleReduce load ratioEnergy based wastewater treatmentMultistage water/sewage treatmentConstructed wetlandRural area
The invention discloses a low-energy-consumption low-carbon-emission economical energy-saving urban sewage treatment method. The method comprises the steps that: 1, the to-be-treated wastewater is collected by a sewage pipe network and then is filtered by lattices, and is lifted by a pump to enter a pulse water distribution pot of a novel efficient turn-back anaerobic biochemical pool (ABR); 2, the swage subjected to the treatment in step 1 flows into a circulation-flow biological oxidization pool; 3 the effluent water from the step 2 flows into an artificial reinforced biological contact oxidization pool reconstructed by a water body from natural tunnels and reservoirs; and 4, the effluent water from the step 2 or the step 3 flows into constructed wetlands. After the sewage is treated by the above steps, the most pollutants in the water are effectively removed and the treated effluent water reaches the standard first-grade A in GB 18918-2002 ''Discharge standard of pollutants for municipal sewage treatment plant''. The energy-saving sewage treatment purification process with low cost, low energy consumption, low carbon emission and low operating cost is particularly suitable for the sewage treatment in small towns or rural areas.
Owner:武汉昌宝环保工程有限公司
Wastewater treatment process of anaerobic ammonia oxidation and sulfur-based autotrophic denitrification coupled denitrification and desulphuration
ActiveCN104843863ASmall footprintSimplify complexityTreatment with anaerobic digestion processesConcentration ratioAmmonia
The invention provides a wastewater treatment process of anaerobic ammonia oxidation and sulfur-based autotrophic denitrification coupled denitrification and desulphuration. The process is characterized in that a mixed culture of anaerobic ammonium oxidation bacteria and thiobacillus denitrificans is taken as a main part; in the same reactor, the temperature is controlled between 25-35 DEG C, the pH value of wastewater is adjusted to 7.5-8.0, and the hydraulic retention time is 2.5-10 hours; the concentration of ammonia in the wastewater calculated according to the element N is 40-300mg / L<-1>, the concentration of nitrite in the wastewater calculated according to the element N is 50-390mg / L<-1> and the concentration of sulfide in the wastewater calculated according to the element S is 30-170mg / L<-1>; the concentration ratio of the ammonia to the nitrite calculated according to the element N is 1:1-1.32, and the concentration ratio of the nitrite calculated according to the element S to the ammonia calculated according to the element N is 1:1.54-1.74. The process is a novel wastewater treatment technology for synchronically performing denitrification and desulphuration economically efficiently by using treatment of wastes with processes of wastes against one another.
Owner:浙江国泉生态环境有限公司
Organic refuse and fecal separating and collecting treatment
InactiveCN1644538AAvoid enteringReduce yieldBio-organic fraction processingSolid waste disposalWater dischargeFeces
A classifying collecting and treating method for organic refuse and excrement includes: 1) sucking the refuse and excrement into vacuum tubing net; 2) mixing them by vacuum pot and discharging into solid-liquid separated pool, and discharging the solid into anaerobic digesting reactor; 3) concentrating and dewatering the marsh slag discharged, adding deodorized bacterial strain, piling up and deodorizing; 4) adding digesting mud into bacterial strain cultured, culturing, drying and obtaining organic composite bacterial manure; 5) discharging the clear liquid and sewage into anaerobic and oxygen sewage treating unit, and the outlet water discharging into sewage tubing net or water body. Its advantages include lower mud output rate and mud account, and higher mud age.
Owner:HUAZHONG UNIV OF SCI & TECH
Multistage anaerobic/anoxic/oxic activated sludge process
ActiveCN102491604ACarbon savingSave oxygen consumptionTreatment with aerobic and anaerobic processesMultistage water/sewage treatmentActivated sludgeSewage
The invention relates to a multistage anaerobic / anoxic / oxic (AAO) activated sludge process, which contains the following concrete technological steps of: M stages of AAO are combined and are connected with a sedimentation basin; sewage is distributed and enters into the head end of an anaerobic tank of each stage in the system respectively according to the flow; original sewage and one part of returned sludge in the sedimentation basin are mixed and then enter into the first-stage anaerobic tank; an effluent mixed liquor is mixed with the other part of the returned sludge and then a mixed liquor flows through the first-stage anoxic tank and the first-stage oxic tank...; after the second stage, the original sewage and a mixed liquor from the end of the last-stage anoxic tank are mixed and then enter into the m-stage anoxic tank and the m-stage aerobic tank; in circulation, an effluent of the final-stage aerobic tank enters into the sedimentation basin; part of the returned sludge from the sedimentation basin returns to the head end of the first-stage anaerobic tank, and the other part returns to the head end of the first-stage anoxic tank. The invention has beneficial effects of ''one carbon source for two uses'' and realization of denitrification and phosphorus uptake at the same time.
Owner:中国市政工程西北设计研究院天津分院
Coupling technology for microelectrolysis-pressurized biofiltration treatment of industrial wastewater biochemical tail water
ActiveCN108238701AEfficient removalImprove running stabilityTreatment involving filtrationMultistage water/sewage treatmentElectrolysisIndustrial effluent
The invention discloses a coupling technology for microelectrolysis-pressurized biofiltration treatment of industrial wastewater biochemical tail water. The technology comprises the following steps: (1) pretreatment by using a microelectrolysis reactor: adjusting pH of the industrial wastewater biochemical tail water to 3.5-5.5, and feeding into the microelectrolysis reactor filled with microelectrolysis filler for pretreatment; and (2) pressurized biofiltration treatment: treating the yielding water pretreated by the microelectrolysis reactor in the step (1) by using a pressurized biofilter,wherein the pressurized biofilter is filled with microbial magnetic filler. According to the invention, the effect of removing pollutants is enhanced by improving the components, structure and shape of the microelectrolysis filler and by using the degradation effect of microelectrolysis, the activation effect of the pressurized bio-ferric and magnetic field on microorganisms, and the synergistic effect of the microelectrolysis and the pressurized biofilter. The coupling technology disclosed by the invention has the advantages of small floor space, low operation cost, high quality of yielding water, small sludge quantity and the like, and is suitable for advanced treatment of various industrial wastewater biochemical tail water.
Owner:JINAN UNIVERSITY
Biochemical treatment method for improving polymer-containing sewage matrix of oil field
InactiveCN105523692AImprove oxygen transfer efficiencyAvoid easy cloggingWaste water treatment from quariesTreatment involving filtrationDemulsifierAfter treatment
The invention relates to a biochemical treatment method for improving polymer-containing sewage matrix of the oil field. Polymer-containing sewage is firstly added with a demulsifier and enters a demulsification buffer tank for demulsification, after a pH regulator is added to effluent of the demulsification buffer tank, the effluent enters a pH regulating tank and enters a floatation tank for floatation after pH is regulated, and a flocculant adding point is arranged at an inlet of the floatation tank; effluent of the floatation tank enters a filter, is filtered and then enters a water buffer tank, a compound biological nutritional agent is added, effluent of the water buffer tank sequentially enters an anaerobic tank and an aerobic tank for treatment and performs mud-water separation through a settling pond, a liquid supernatant of the settling pond is discharged after meeting the standard, a part of sludge at the bottom of the settling pond flows back to the front end of anaerobic tank, the remaining sludge and dross produced during floatation enter a sludge concentration tank and are concentrated and dewatered by a dewatering device. The treatment efficiency is high, the load impact resistance ability is high, the operation is stable and standard discharge after treatment of the polymer-containing sewage of the oil field is realized.
Owner:天津市振津石油天然气工程有限公司
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
Nitrogen and phosphorus removal system and method for treating low-carbon-nitrogen-ratio domestic wastewater by A2O-MBBR (anaerobic-anoxic-oxic-moving bed biofilm reactor) combined chemical process
InactiveCN104230110AOvercoming Insufficient Organic ContentHigh removal rateMultistage water/sewage treatmentMoving bed biofilm reactorMunicipal sewage
The invention discloses a nitrogen and phosphorus removal system and a method for treating low-carbon-nitrogen-ratio domestic wastewater by an A2O-MBBR (anaerobic-anoxic-oxic-moving bed biofilm reactor) combined chemical process, belongs to the field of city wastewater treatment and regeneration, and solves the problem of poor nitrogen and phosphorus removal effect of an existing water purification process for treating the low-carbon-nitrogen-ratio domestic wastewater. The nitrogen and phosphorus removal system comprises an A2O reactor, an intermediate settling pond, an MBBR, a chemical phosphorus removal pond and a final settling pond. According to the method, the MBBR is arranged behind the intermediate settling pond, a nitrifying process is finished, and an inorganic metal salt agent is added into the chemical phosphorus removal pond; all active sludge subjected to standing and settling by the chemical phosphorus removal pond flows back to the A2O reactor, so that the number of phosphorus-accumulating bacteria cannot be reduced; then, electron acceptors are provided for the denitrifying effect and the anoxic phosphorus uptake effect by flowing part of outlet water of the MBBR back to an anoxic zone of the A2O reactor. By the nitrogen and phosphorus removal system, the removal rate of ammonia nitrogen and total phosphorus can reach more than 90%.
Owner:HARBIN INST OF TECH
Carbon source denitrogenation inside cells for sewage
InactiveCN1562806ATo overcome the need to add chemical agents as denitrification carbon sourceOvercome energy consumptionTreatment with aerobic and anaerobic processesSolubilityNitrogen
In aerobic condition, soluble organic substance in water can be absorbed by microbe in short time, the organic substance is in microbe cells mainly in way of intracellular polymer and used as anti-nitrocarbon source in anti-nitrify tank. The processing steps are: mixing reaction, solid-liquid separating, nitrify and anti-nitrifying.
Owner:FUDAN UNIV
Denitrification method for coking wastewater
InactiveCN109626739ASmall volumeReduce power consumption costsWater contaminantsMultistage water/sewage treatmentSludgeNitration
The invention provides a denitrification method for coking wastewater. The denitrification method for the coking wastewater comprises the steps that a coagulant and a demulsifier are added into the coking wastewater, sulfide and mineral oil in the coking wastewater are removed, then the coking wastewater is introduced into a partial nitrification tank, an anaerobic ammoxidation tank and an aerobicdecarbonization tank in sequence for a nitration reaction, denitrification and decarbonization, the treated coking wastewater is precipitated by a secondary sedimentation tank and separated into a supernatant and sludge, the sludge flows back to the partial nitrification tank, then the supernatant is introduced into a coagulative precipitation tank to be precipitated, a flocculating agent is added, suspended solids in a mixed solution are removed, finally, the denitrified coking wastewater is obtained, and the precipitated excess sludge is discharged from a discharge port in the bottom of thecoagulative precipitation tank. The denitrification method for the coking wastewater has the advantages that a method for treating the coking wastewater by adopting a partial nitrification-denitrification technology is adopted to effectively shorten the reaction mechanism, reduce the consumption of a carbon source, reduce the power consumption and reduce the operating cost.
Owner:PINGXIANG HUAXING ENVIRONMENTAL PROTECTION ENG TECH CO LTD
Continuous circulating pipe membrane bioreactor
ActiveCN102963972AIncrease concentrationExtended stayTreatment using aerobic processesSustainable biological treatmentSewageMembrane bioreactor
The invention discloses a continuous circulating pipe membrane bioreactor which comprises a reactor body, wherein at least one contact oxidation cabinet is arranged in the reactor body; the contact oxidation cabinet is connected with a circulating pipe membrane group through a water inlet pump; the circulating pipe membrane group at least comprises a pipe membrane and a circulating pump; the pipemembrane and the circulating pump are mutually connected in series through a backflow pipeline to form a circulating loop; a pipe cavity of the pipe membrane is communicated with a concentrate backflow pipe; a filtering cavity on the outer side of the pipe membrane is communicated with a discharge pipe; and when in work, the ratio V1 / V3 of the water inlet flow V1 flowing through the water inlet pump to the filtered clear liquid flow V3 of the circulating pipe membrane group is 2-10, and the ratio V2 / V3 of the circulating flow V2 flowing through the inner cavity of the pipe membrane to the filtered clear liquid flow V3 is 2-50. The pipe membrane bioreactor disclosed by the invention has the advantages of high efficiency in removing organic pollutants, difficulty in polluting a filter membrane and long service life, and is suitable for centralized treatment of domestic sewage of the ocean engineering equipment and ships as well as cities, houses or other people-intensive areas.
Owner:DONGTAI CITY DONGFANG MARINE FITTING
Method for treating wastewater of terephthalic acid by using aerating bio filter
InactiveCN1958484AAchieve removalImprove biological activityMultistage water/sewage treatmentSustainable biological treatmentSludgeFiltration
This invention discloses a method for treating p-phthalic acid wastewater by using aeration biological filtration pool. The method comprises: (1) infusing p-phthalic acid wastewater into a precipitation pool for precipitation; (2) infusing precipitated wastewater the bottom of an aeration biological filtration pool, and entering the filtration layer through a filtration head in the filtration pool; (3) sending the discharged water into a filter for filtration; (4) discharging or recycling qualified discharged water. The filtration layer is filled with wastewater filtration filler, and is covered with a domesticated aerobic biological membrane that is adaptable for p-phthalic acid toxicity. The method utilizes filtration filler and biological membrane as the media, thus fully exploiting biological metabolism, physical filtration, physical adsorption by membrane and adsorbed filler, and multi-stage prey in the reactor to realize the removing of pollutants and bacteria in the same reactor. The method has such advantages as high bioactivity, low energy consumption, low residual sludge content, high organic load tolerance, stable operation, and simple management.
Owner:NANJING UNIV
Method for realizing autotrophic deep denitrification of nitrogen-containing wastewater by utilizing anaerobic membrane bioreactor (MBR)
ActiveCN109867352AEasy to operateReduce power consumptionWater contaminantsTreatment with anaerobic digestion processesActivated sludgeSulfur
The invention relates to a method for realizing autotrophic deep denitrification of nitrogen-containing wastewater by utilizing an anaerobic membrane bioreactor (MBR). The method comprises the following steps: S1, under an anoxic condition with a temperature of 20-35 DEG C and a pH value of 7.6-7.8, taking an anaerobic MBR as a reactor to repeat the following operations: introducing artificially synthesized wastewater with sulfides as a sulfur source into a sludge-water mixed solution of sulfur autotrophic denitrification activated sludge, carrying out stirring and domesticating treatment, anddischarging water, wherein the period is 18-24 hours, and domestication is completed when the removal rate of NO3<-> in effluent water is greater than or equal to 94%; and S2, introducing mixed wastewater of artificially synthesized wastewater and nitrogen-containing wastewater, carrying out stirring treatment under anoxic condition with a temperature of 20-35 DEG C and a pH value of 7.6-7.8, andthen carrying out discharging. Through the method provide by the invention, sewage treatment efficiency is high, the total nitrogen (TN) content in the effluent is less than or equal to 15 mg / L, andthe emission standard that the TN content is less than or equal to 40 mg / L in the (Standard for Pollution Control on the Landfill Site of Municipal Solid Waste) is met.
Owner:SUN YAT SEN UNIV +2
Equipment and process of denitrifying phosphorus removal coupled vibration anoxic MBR
PendingCN110015756AContinuous water dischargeEliminate nitrifying bacteriaSpecific water treatment objectivesWater contaminantsSludgeEngineering
The invention belongs to the field of sewage biological treatment, and particularly relates to equipment of denitrifying phosphorus removal coupled vibration anoxic MBR. The equipment comprises a water inlet tank, an anaerobic tank, a middle settling tank, an aerobic tank and an anoxic tank which communicate in sequence; a stirring device is arranged in the anaerobic tank; a bottom outlet of the middle settling tank is connected with a bottom inlet of the anoxic tank through a sludge transcending pipeline; a filler and an aeration device are arranged in the aerobic tank; an MBR membrane moduleis arranged in the anoxic tank, a bottom outlet of the anoxic tank is connected with a sludge treatment pipeline, and an outlet of the sludge treatment pipeline is divided into two branch pipelines,wherein one branch pipeline is connected with the bottom of the anaerobic tank through a sludge return pipeline, and the other branch pipeline is connected with a remaining sludge pipeline; and the water discharge end of the membrane module is connected with a water discharge pipeline. The technical solution provided by the invention solves the problems of a poor solid-liquid separation effect, alarge number of structures, a long process flow, low reaction efficiency, complicated system control, discontinuous water discharge, high operation energy consumption, and difficulty in controlling ofmembrane fouling.
Owner:NORTH CHINA UNIV OF WATER RESOURCES & ELECTRIC POWER
Internal recycle sequencing batch type biomembrane wastewater treatment device
InactiveCN101955255AEasy to handleImprove processing efficiencyTreatment with aerobic and anaerobic processesSustainable biological treatmentFiberDenitrifying bacteria
The invention relates to an internal recycle sequencing batch type biomembrane wastewater treatment device. The device comprises a water box connected with a reactor by a pipe through a water pump and a water distribution head; the the reactor is internally provided with a filler bed for fixing fibrous fillers, a water distribution head connected with the water pump and an aeration head connected with an aerator; the water pump, the aerator, a valve and an internal recycle pump are connected with a time controller; the device is characterized in that the reactor internally comprises the internal recycle pump, the internal recycle pump is connected with an internal recycle pipe, and the water outlet of the internal recycle pipe is positioned at the upper end of the reactor; and the water distribution head is also connected with the valve to realize water drainage function. Therefore, the invention aims at the defect that a spiral agitator cannot be installed on the fiber filler bed inside the reactor, and the internal recycle pump is installed inside the reactor of the fiber filler bed so as to guarantee upper filler layer to obtain sufficient nutrients, thereby improving the fixation amounts of nitrifying bacteria and denitrifying bacteria, guaranteeing short hydraulic retention time, precipitating out the water with better quality, and having low maintenance cost.
Owner:OCEAN UNIV OF CHINA
Sewage treatment process for recovering N-methyl pyrrolidone
InactiveCN110894125ASettling property without special requirementsReduce yieldFatty/oily/floating substances removal devicesWater treatment compoundsElectrolysisActivated carbon filtration
The invention discloses a sewage treatment process for recovering N-methyl pyrrolidone. The sewage treatment process comprises the following steps: pretreating high-concentration wastewater, wherein the pretreating sequentially comprises catalytic cracking, high-voltage pulse electrolysis and coagulating sedimentation; obtaining pretreated wastewater; carrying out biochemical treatment; sequentially carrying out mixing homogenization, anaerobic reaction, hydrolytic acidification and contact oxidation on the pretreated wastewater in the step (1); obtaining biochemical treatment water; ensuringtreatment; and sequentially carrying out precipitation reaction, multi-medium filtration and active carbon filtration on the biochemical treatment water in the step (2) to finish recovery. The methodhas the advantages of low process cost, high efficiency, good recovery effect and good wastewater treatment effect, and can be widely popularized and used.
Owner:镇江新纳环保材料有限公司
Treatment system and treatment method of oil refinery alkaline residue wastewater
InactiveCN106865908ALow costReduce water loadMultistage water/sewage treatmentNature of treatment waterChemistryHigh concentration
The invention relates to a treatment system and a treatment method of oil refinery alkaline residue wastewater. The treatment system comprises a waste alkali storage tank, a denitrification unit, a primary biochemical unit, a secondary biochemical unit, an ozone catalytic oxidation unit and a nitration unit. The treatment system and the treatment method have the advantages of effective and stable removal of most CODs from the alkaline residue wastewater, mitigation of the treatment load of a subsequent common biochemical treatment technology, improvement of the impact resistance of a whole sewage treatment plant, stable quality of outlet water, simplicity in operation, and low engineering cost and running cost, and can be widely applied to the field of high-concentration alkaline residue wastewater treatment of the oil refining petrochemical industry.
Owner:DALIAN BISHUILANTIAN ENVIRONMENTAL PROTECTION TECH ENG
Optimized CAST domestic sewage sludge reduction control system and working method
The invention relates to an optimized CAST domestic sewage sludge reduction control system and a working method. Through arrangement of a main control computer and a control device, high automation of the CAST system is realized, and the purpose of sludge reduction in the domestic sewage processing process can be realized through adjusting technological parameters. The control system of the invention can not only handle parameter arrangement when the sludge concentration rises but also handle parameter arrangement when sludge in a reaction pool is reduced, and the sludge amount and the sludge concentration in the reaction pool can be in a balanced and stable level.
Owner:杨安康 +2
Sectional type anaerobic baffled reactor
InactiveCN101560036ASmall volumeIncrease oxygen contentTreatment with anaerobic digestion processesMultistage water/sewage treatmentWater districtSmall footprint
The invention belongs to sewage treatment device, in particular to waste water anaerobe treatment device with principal character of sectional water inlet operation. An anaerobic reaction chamber surrounds the main part of a reactor, the middle of the main part of the reactor is provided with a denitrification dephosphorization zone, the bottom is provided with a sludge settling zone which is externally connected with a sludge outlet pipe; the top is provided with an overflow groove which is externally connected with a water outlet pipe; the anaerobic reaction chamber is divided into a plurality of anaerobic reaction chambers by baffles, baffle plate positioned between two adjacent baffles divide each chamber into a lower water district and an upper water district, the top of the lower water district is provided with a water inlet pipe, the bottom of the upper water district is thrown in granular anaerobic sludge, the top is provided with a sewage sample port; a row of water discharging ports are arranged between the bottom of the anaerobic reaction chamber with the lowest height of the baffle and the sludge settling zone. The invention has the characteristics of very low energy consumption, high load resistance, small amount of excess sludge, good water conservancy mixing condition, easy devices, small floor area, low running cost and the like.
Owner:JIANGSU UNIV
Multi-physical field enhanced oxidative decomposition water purification device and pollution control method thereof
PendingCN107473492AEasy to cleanAchieve recyclingWater/sewage treatment by irradiationWater contaminantsElectrochemical responseChemical reaction
The invention relates to a multi-physical field enhanced oxidative decomposition water purification device and a pollution control method thereof. The device provided by the invention consists of a shell, an outer photocatalyst, an inner photocatalyst, a light source upper support, a light source lower support, a light source, an electromagnetic spiral coil, an aeration head and an aeration head air inlet. The pollution control method comprises the following steps: introducing air or oxygen, and mixing the air or oxygen with sewage through the aeration head to form an aeration-like water flow which enters the outer photocatalyst of the device provided by the invention in a circulating manner to be subjected to direct or indirect electrochemical reaction with light, electricity, magnetism and nano-catalytic materials to remove pollutants in sewage. The multi-physical field enhanced oxidative decomposition water purification device provided by the invention integrates the photocatalysts, electrolytic ionization, magnetic driving and aeration oxidation technologies for sewage purification, has the advantages of simple structure, convenience in operation, low energy consumption, high efficiency and less excess sludge amount, can remove inorganic substances such as nitrogen and phosphorus, and achieves recovery and treatment of phosphorus and inorganic matter and recycling of water.
Owner:BEIJING PENGDONGTAIKE ENVIRONMENTAL PROTECTION TECH
Biological combined reactor used for printing and dyeing waste water processing, device and method
ActiveCN104030437AEasy to handleSmall footprintTreatment with aerobic and anaerobic processesMultistage water/sewage treatmentGratingSludge
The invention provides a biological combined reactor used for printing and dyeing waste water processing. The reactor comprises an anaerobic baffling reacting zone, an anaerobic return chamber and an aerobiotic dynamic reaction zone. The water inlet of the reactor is disposed in the anaerobic baffling reacting zone. The anaerobic baffling reacting zone is compartmented into two or more baffling chambers by compartmenting walls. The baffling chambers are provided with vertical baffling plates and inoculated with active particle sludge accounting for one third to a half of the effective volume of the baffling chambers. The aerobiotic dynamic reaction zone is compartmented into a first compartment, a second compartment and a third compartment by two baffling plates. The second compartment is inoculated with one third to a half of the active particle sludge. The second compartment is provided with a grating net and an aerating system is disposed on the grating net. The first compartment and the third compartment are respectively provided with a bag type membrane assembly. The invention also provides a printing and dyeing waste water processing device comprising the reactor and a printing and dyeing waste water processing method by utilization of the reactor. The reactor, the device and the method are advantaged by simple process, low cost, stable running, good discharging water quality, and the like.
Owner:福建省环境保护设计院有限公司
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
Owner:XIAMEN HUANKANG ENVIRONMENTAL PROTECTION TECH
Aerobic front end local oxygenation sewage treatment device based on Internet of things
InactiveCN107226589AAchieve deep removalSimple structureWater treatment parameter controlTreatment using aerobic processesFilling materialsBiochemical engineering
The invention discloses an aerobic front end local oxygenation sewage treatment device based on Internet of things. The aerobic front end local oxygenation sewage treatment device comprises multi-stage anaerobic jar groups and multi-stage aerobic biochemical pool groups in sequential and serial connection, wherein the multi-stage anaerobic jar groups comprise a plurality of anaerobic jars which are sequentially connected in series; the multi-stage aerobic biochemical pool groups comprise a plurality of aerobic biochemical pools which are sequentially connected in series; biological active filling materials are built in the anaerobic jars and the aerobic biochemical pools; the mutually and serially connected anaerobic jars, the aerobic biochemical pools, and the anaerobic jars and the aerobic biochemical pools are sequentially communicated through flow passing through holes; a gas supply device is arranged on the aerobic biochemical pool, connected with the anaerobic jar, in the multi-stage aerobic biochemical pool; the aerobic biochemical pools in the multi-stage aerobic biochemical pool groups are in staged arrangement with the gradually decreased height. By using the device provided by the invention, the multi-stage biochemical reaction is formed; organic contaminants in the sewage can be decomposed stage by stage and can be degraded; the deep removal of the contaminants can be realized; meanwhile, the fall design is used, so that the dissolved oxygen content of the sewage in each aerobic biochemical pool at the back end is ensured.
Owner:云南水道元节能环保科技股份有限公司
Landfill leachate treatment device
PendingCN107840444AReduce demandHigh yieldWater treatment parameter controlTreatment by combined electrochemical biological processesSludgePollution
The invention provides a landfill leachate treatment device. The device is formed by four treatment units such as a microbial electrolysis cell reactor, an anoxic denitrification reactor, a partial nitrification reactor and an anaerobic ammonia oxidation reactor which are sequentially in serial connection, wherein the microbial electrolysis cell reactor is provided with a water inlet end and a water outlet end for landfill leachate, the water outlet end of the microbial electrolysis cell reactor is connected with a water inlet end of the anoxic denitrification reactor, a water outlet end of the anoxic denitrification reactor is connected with a water inlet end of the partial nitrification reactor, a water outlet of the partial nitrification reactor is connected with a water inlet end of the anaerobic ammonia oxidation reactor, and a water outlet end of the anaerobic ammonia oxidation reactor is connected with a draining opening or a lower-level treatment unit. The treatment device canremove organic pollutions of the landfill leachate in high efficiency and denitrify in high efficiency, so that the treated landfill leachate can stably reach the standard. In addition, when the device disclosed by the invention is utilized to treat the landfill leachate, operation energy consumption and later sludge treatment cost are further saved.
Owner:CHINA ENFI ENGINEERING CORPORATION
Wastewater sludge reduction treatment system
PendingCN112456755AReduce productionLess amount of residual sludgeSludge treatment by de-watering/drying/thickeningSpecific water treatment objectivesBiofilmReduction treatment
The invention relates to a wastewater sludge reduction treatment system which comprises a filtering device, an adjusting tank, an ultrasonic treatment tank, a buffer tank, a sludge acidification tank,a sedimentation tank, a sludge dehydration unit, a sludge drying unit and a sludge storage device. The adjusting tank comprises a first tank body, a biofilm culturing combined filler and an aerationdevice, wherein the biofilm culturing combined filler and the aeration device are arranged in the first tank body; an inlet of the filtering device is used for introducing sludge to be treated, an outlet of the filtering device is communicated with an inlet of the adjusting tank, an outlet of the adjusting tank is communicated with an inlet of the ultrasonic treatment tank, an outlet of the ultrasonic treatment tank is communicated with an inlet of the sludge acidification tank through the buffer tank, and an outlet of the sludge acidification tank is communicated with an inlet of the sludge dehydration unit through the sedimentation tank; an outlet of the sludge dehydration unit is communicated with an inlet of the sludge drying unit, and an outlet of the sludge drying unit is communicated with the sludge storage device. According to the technical scheme, efficient dehydration of the sludge can be achieved, and a good foundation is provided for subsequent treatment of the sludge.
Owner:华夏碧水环保科技股份有限公司
Sewage treatment process and sewage treatment system thereof
PendingCN109502892AAvoid easy cloggingFast filtrationTreatment using aerobic processesSpecific water treatment objectivesActivated sludgePopulation density
The invention discloses a sewage treatment process and a sewage treatment system thereof. The sewage treatment system comprises a primary sedimentation / adjustment tank, an up-flow type filter, a preaeration tank, an IFAS-MOX reactor, a secondary sedimentation tank and a clean water basin, wherein a sewage inlet trough is arranged on one side of the primary sedimentation / adjustment tank; a thick-thin grid is arranged in the sewage inlet trough; a micropore aerator pipe is arranged in the preaeration tank; and one end of the micropore aerator pipe communicates with a fan located on the outer side of the preaeration tank. According to the sewage treatment process and the sewage treatment system thereof provided by the invention, by utilizing the advantages of difficulty in blocking, fast filter speed and easiness in cleaning of the up-flow type filter, sewage is pretreated; by utilizing the advantages of a biofilm technology and an activated sludge technology in the IFAS-MOX reactor, without increasing the sludge concentration, the microbial population density is improved, and the sludge sedimentation performance is improved; through the dissolved oxygen gradient change, the commensalism of nitrosobacteria and anaerobic ammonium oxidation bacteria is realized, and a sewage nitrogen and phosphorus removal effect is improved. A carbon source in sewage is effectively utilized, the oxygen utilization ratio is high, the energy consumption is low, and a nitrogen and phosphorus removal effect is good.
Owner:福瑞莱环保科技(深圳)股份有限公司
Sewage treatment biological membrane carrier device based on soybean straw and application method of device
ActiveCN108585204AEfficient degradationEfficient removalTreatment with aerobic and anaerobic processesWater treatment flow arrangementsSludgeBiocompatibility Testing
The invention relates to a sewage treatment device and an application method thereof, and discloses a sewage treatment biological membrane carrier device based on soybean straw and an application method of the device. The device and the method aim to solve the technical problems that in the prior art, a lot of agricultural straw is left, and a biological carrier material in a water treatment biological membrane method is poor in biocompatibility, poor in mass transfer capacity, small in biological adhesion amount and weak in corrosion resistance. The device comprises an adjusting tank, a waterinlet pump, a biochemical system and a secondary sedimentation tank. The biochemical system is a double-tank switching type biological membrane system or a single-tank switching type biological membrane system; a biological membrane carrier is formed by a straw module. The application method of the device comprises the following steps of carrier biological membrane culturing and operation control. The COD removal efficiency reaches 85-95%, the denitrification efficiency reaches 70-85%, and the process has the advantages that sludge backflow is not needed and the amount of generated residual sludge is small.
Owner:青岛哈工资源环境技术有限公司
High-efficiency and novel biological carrier for sewage biological treatment and preparation method thereof
InactiveCN101538083BImprove adhesionLarge specific surface areaBiological water/sewage treatmentWastewaterWaste rubber
Owner:常州华钛化学有限公司
Multistage anaerobic/anoxic/oxic activated sludge process
ActiveCN102491604BCarbon savingSave oxygen consumptionTreatment with aerobic and anaerobic processesMultistage water/sewage treatmentActivated sludgeSewage
Owner:中国市政工程西北设计研究院天津分院
Shipborne domestic sewage treatment system
InactiveCN109694155AEfficient conversionEfficient use ofSludge treatment by de-watering/drying/thickeningMultistage water/sewage treatmentMethanol waterFuel cells
The invention relates to the technical field of sewage treatment, particularly to a shipborne domestic sewage treatment system, which comprises a sewage treatment module, a manure sludge treatment module and a thermoelectric control module, wherein the sewage treatment module comprises a solid-liquid separator, an oil-water separator, a sewage adjustment box, a MBR biofilm reactor and a clear water collection box, and the thermoelectric control module comprises a methanol water storage tank, a methanol water-to-hydrogen reformer, a heat exchanger, a fuel cell, an air residual gas mixer and a control device. Compared with the shipborne domestic sewage treatment system in the prior art, the shipborne domestic sewage treatment system of the present invention has the following characteristicsthat the sewage and the manure on the ship are separated so as to improve the sewage treatment efficiency and integrate the power supply, the heat supply and the manure sewage treatment, and the system has advantages of small occupation area, energy saving and environmental protection.
Owner:GUANGDONG HYDROGEN ENERGY SCI & TECH
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