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53results about How to "To achieve the purpose of phosphorus removal" patented technology
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Integrated urban waste water treating apparatus and process
ActiveCN1579967AEasy to removeTo achieve the purpose of phosphorus removalMultistage water/sewage treatmentFlocculationElectrolysis
The invention discloses equipment of processing incorporate urban sewage and its technics. The equipment is made of armor plate. It includes internal electrolysis reaction area, machine-adding mixing system, helix flocculation depressed area and biolobical reaction area. Sewage can reach GB8978-1996 discharging standard through internal electrolysis reaction, flocculating settling (to remove phosphor), aerobic biological reaction, anaerobic reaction and filtration. Adopting incorporate treatment technics, the invention has a little floor space, low investment and a good effect. It adapts to urban subzones, blocks in villages and towns and micromidi companies such as urban diet, food processing and abattoir.
Owner:广西国宏智鸿环保科技集团股份有限公司
Method for acid leaching extraction of vanadium from vanadium-containing raw material
InactiveCN101509070AAvoid problems with going into solutionShorten the leaching timeWastewaterIon exchange
The invention relates to a method for extracting vanadium(V) from vanadium-containing materials, in particular to a method for acid-leaching vanadium from the vanadium-containing materials. The method comprises the following steps: a. adding water to the vanadium-containing materials and evenly stirring; gradually adding sulfuric acid with the mass fraction being 20% to 60% to adjust the pH value of the acid-leaching reaction system to 2.5 to 3.3; and filtering to obtain residue and acid-leaching solution upon completion of acid-leaching; and b. leaching vanadium from the acid-leaching solution obtained in Step a with SO4 type anion exchange resin by ion-exchange. The method can effectively prevent ions, such as Fe, Mg, Al, Mn, P, Cr and the like, in the vanadium-containing materials from entering the acid-leaching solution during acid-leaching process and greatly reduce the pressure on the subsequent purification of the acid-leaching solution; and the ion-exchange raffinate can be recycled in the acid-leaching step, thereby increasing the overall recovery rate of vanadium and avoiding problems in environmental pollution caused by discharging a large quantity of vanadium-leaching waste water.
Owner:PANGANG GROUP RESEARCH INSTITUTE CO LTD +3
Phosphorus removing method for municipal sewage plant
InactiveCN101302053AHigh removal rateTo achieve the purpose of phosphorus removalWater contaminantsTreatment with anaerobic digestion processesElectrolysisTherapeutic effect
Owner:HUBEI UNIV
Raw material prescription and preparing method for preparing recoverable wastewater dephosphorization material using shuck
InactiveCN101176839AReduce manufacturing costImprove stabilityOther chemical processesWater/sewage treatment by sorptionWastewaterOyster shells
The invention provides a raw material formula and a preparation method of using oyster shells to prepare recyclable waste water phosphorus removal materials. The method makes full use of the rich calcium resources contained in oyster shells, mixes calcined oyster shells and clay uniformly in an appropriate proportion, and forms them. It is sintered into a tubular or granular wastewater phosphorus removal material with a fixed shape. The product formula and process of the invention are simple, low in cost, strong in phosphorus removal capacity, high in product strength, recyclable, solve technical problems restricting the recycling and regeneration of phosphorus removal materials, and have strong market competitiveness and popularization and application value.
Owner:FUZHOU UNIV
Recyclable waste water dephosphorization material of oyster shells prepared by fire-free method and preparation method thereof
InactiveCN101628751AReduce energy consumptionHigh strengthSolid waste managementWater contaminantsEcological environmentWastewater
The invention provides a recyclable waste water dephosphorization material of oyster shells prepared by a fire-free method and a preparation method thereof, belonging to a recyclable waste water dephosphorization ecological environment material, and solving the technical problems of unreasonable utilization of the oyster shells, incomplete dephosphorization in the waste water, high cost, complex process and the like in the prior art. In the invention, calcium resources in the oyster shells are fully utilized, pre-processed oyster shells and concrete are uniformly mixed according to a proper proportion, molding is carried out, and then the waste water dephosphorization material is prepared through the fire-free method. The invention has simple formulation and process, low cost, strong dephosphorization ability and high intensity, can be recycled, and then solves the difficult technical problem restricting the recycle and regeneration of the dephosphorization material and has very strong market competition and promotion application value.
Owner:FUZHOU UNIV
Treatment method of heavy metal wastewater
ActiveCN103265151AExpand pool capacityIncrease project costMultistage water/sewage treatmentChemistryHeavy metals
The invention discloses a treatment method of heavy metal wastewater. The treatment method of heavy metal wastewater comprises the following steps of: delivering heavy metal wastewater supernatant liquor subjected to pretreatment into an A3O biochemical reaction system comprising a hydrolytic acidification reaction tank, an oxygen-poor denitrification reaction tank, an oxygen-poor dephosphorization reaction tank and an activated sludge tank; delivering effluent into a heavy metal membrane reactor, adding obligate bacteria for degrading organic matters in the reactor; and refluxing the wastewater in the heavy metal membrane reactor at intervals into the oxygen-poor dephosphorization reaction tank. According to the treatment method, the A2O biochemical treatment process is replaced by the A3O biochemical treatment process, the reflux ratio is adjusted, and the effects of reducing chemical oxygen demand (COD) of the biochemical system, adsorbing heavy metal, denitrifying and dephosphorizing without increasing the hydraulic retention time, the tank volume and the project cost are strengthened; and besides, a secondary sedimentation tank is replaced by M-MBR, the concentration of activated sludge and the biochemical reaction rate are improved, the COD and BOD are further reduced, and the equipment and process are simple. The treatment method can be popularized and applied on a large scale.
Owner:GUANGDONG XINDAYU ENVIRONMENTAL PROTECTION TECH CO LTD +1
Desulfurized ash slag waste water dephosphorization materials prepared by baking-free method and preparation method
InactiveCN101670264AWide variety of sourcesLow densityOther chemical processesWater/sewage treatment by sorptionSlagCalcium
The invention provides desulfurized ash slag waste water dephosphorization materials prepared by a baking-free method and a preparation method, belonging to recyclable wastewater dephosphorization ecology environment materials. The invention solves the technical problems of the unreasonable use of desulfurized ash slag, incomplete phosphorus removal in the wastewater, high cost, complex technicalflow, and the like, in the prior art. The method comprises the steps of: completely using abundant calcium resources in the desulfurized ash slag; evenly mixing the processed desulfurized ash slag with cement according to proper proportion; shaping; and maintaining to be the wastewater dephosphorization materials in a baking-free way. The invention has simple product prescription and technology, low cost, strong dephosphorization capability and high product intensity, is recyclable, solves the technical difficulty in restricting the recycle of the dephosphorization materials, and has strong market competitive capacity and wide popularization and application value.
Owner:FUZHOU UNIVERSITY
Sodium alginate embedded novel iron carbon-medical stone efficient phosphorus removal particle and preparation method thereof
ActiveCN111377497AWide variety of sourcesEasy to prepareWater contaminantsWater/sewage treatment by flocculation/precipitationActivated carbonFlocculation
The invention discloses a sodium alginate embedded novel iron carbon-medical stone efficient phosphorus removal particle, and also discloses a preparation method of the phosphorus removal particle. The phosphorus removal particle comprises 1-3 g of medical stone, 1-3 g of activated carbon, 1-4 g of sodium alginate, 3-5 g of iron powder, 290-310 mL of deionized water and 10-25 g of calcium chloride. The phosphorus removal particle not only can overcome the defects that iron, carbon and medical stone are easy to migrate along with water flow, iron powder is easy to agglomerate, the phosphorus removal effect in the early stage of iron-carbon filler is slow and the like when being independently used as carrier filler, but also can give full play to various effects such as electrochemistry, physical adsorption, chemical flocculation precipitation and the like so as to achieve the purpose of phosphorus removal. Besides, the sodium alginate embedded novel iron carbon-medical stone efficient phosphorus removal particles prepared by the invention do not need to add a pore forming agent or high-temperature roasting, are simple and convenient in preparation method, have the advantages of lowenergy consumption, good treatment effect, wide application range, low cost and the like, and have relatively high research value and unique application advantages.
Owner:ZHENGZHOU UNIV +1
Urban sewage strengthening treatment method in cold area based on multi-point feed water adjustment
InactiveCN102001791AExtended staySmall volumeMultistage water/sewage treatmentNitrogenTherapeutic effect
The invention discloses an urban sewage strengthening treatment method in a cold area based on multi-point feed water adjustment, which relates to an urban sewage strengthening treatment method and solves the problems of incapability of synchronous and efficient denitrogenation and dephosphorization, poor treatment effect, high running cost and unsuitability for treating urban sewage in the cold area in the traditional technology of treating the urban sewage. The method comprises the following steps of: firstly, primary precipitation of sewage: dividing effluent of a primary settling tank into two parts or three parts through a distribution well for distribution; and secondly, synchronously introducing the effluent mixing liquid of an anaerobic tank and an anoxic tank 1 and the reflowing sludge at the head end of an aerobic tank into the aerobic tank, introducing the effluent of the aerobic tank into an anoxic tank 2, introducing the effluent of the anoxic tank 2 into a secondary settling tank through water drop, discharging a supernatant as treated purified water, reflowing a part of sludge at the lower layer, and discharging the rest as the remaining sludge. The invention can synchronously carry out efficient denitrogenation and dephosphorization, has favorable treatment effect and low running cost and is suitable for treating the urban sewage in the cold area.
Owner:HARBIN INST OF TECH
Sewage treatment system
InactiveCN109020060AGood removal effectShort processing timeWater contaminantsTreatment involving filtrationIsobutanolTriethylenetetramine
The invention discloses a sewage treatment system, and relates to the technical field of sewage treatment. The system mainly includes a sewage pool, a coarse grid, a grit chamber, a primary sedimentation tank, an adjustment tank, a flocculation tank, a secondary sedimentation tank, an anaerobic tank, an aerobic tank, an anoxic tank, a filtering device and an ecological filter tank, a flocculatingagent is added into the flocculation tank, and the flocculating agent comprises, by weight, 20-45 parts of lignin, 3-7 parts of trioxymethylene, 12-18 parts of triethylenetetramine, 2.5-3 parts of sodium hydroxymethanesulfonate, 6-9 parts of isobutanol, 11-17 parts of 2,3-epoxypropyltrimethylammonium chloride, 5-8 parts of aluminum sulfate, 2.5-3.8 parts of ferrous sulfate, 6-9 parts of zinc chloride and 16-20 parts of polyacrylamide. The system solves the problems of long acting time and poor removal effect of the flocculating agent, and reaches the advantages of fast action and good removaleffect of the flocculating agent.
Owner:佛山市皓信达建设工程有限公司
Method for removing phosphorus in phosphorus containing wastewater
InactiveCN105836919ANo secondary pollutionTo achieve the purpose of phosphorus removalWater treatment compoundsWater contaminantsChemistryPhosphate
The invention provides a method for removing phosphorus in phosphorus containing wastewater .Firstly, the pH value of the phosphorus containing wastewater is regulated to be 6-9, at this time, phosphate mainly exists in the form of dihydrogen phosphate and hydrogen phosphate, and then ferric trichloride is added for hydrolysis to form a ferrous hydroxyl compound; hydrolysate and phosphate form colloids, then aluminum polychlorid is added, the colloids formed by phosphate and iron in the wastewater form sediment by means of adsorption, bridging, sweeping and other actions and are removed out of the wastewater, and the purpose of removing phosphorus is achieved .According to the technology, by analyzing the existing state of phosphate in the wastewater, adding different chemicals and controlling operation parameters, phosphate in the wastewater is made to generate the colloidal state substances, and then the colloids are removed out of the wastewater by means of flocculent settling, so that the phosphorus content in the wastewater is reduced to be below 0.5 mg / L and within the range of 0.3-0.4 mg / L generally.
Owner:GUANGZHOU ENVIRONMENTAL PROTECTION TECH EQUIP
Modified ceramsite capable of efficiently removing phosphorus and preparation method of modified ceramsite
PendingCN111848130AAbility to release calcium from alkaliTo achieve the purpose of phosphorus removalOther chemical processesWater contaminantsPhysical chemistryFly ash
The invention provides modified ceramsite capable of efficiently removing phosphorus and preparation method of modified ceramsite. The modified ceramsite is prepared by taking papermaking white mud and fly ash as main raw material, and is prepared from, by weight, 40-60% of papermaking white mud and 40-60 wt% of fly ash. The preparation method comprises the following steps: (1) taking papermakingwhite mud and fly ash as main raw materials, uniformly mixing the main raw materials according to a ratio, and preparing green pellets with the particle size controllable in a range of 2-20mm by usinga centrifugal ball forming machine; (2) naturally curing the green pellets prepared in the step (1) for 20-24 hours, drying at 105 DEG C, and finally calcining to obtain ceramsite; (3) putting the ceramsite obtained in the step (2) into a KH2PO4 solution with the total phosphorus concentration of 15-20mg / L, statically adsorbing until saturation, and taking out; and (4) drying the ceramsite subjected to adsorption saturation at 105 DEG C for 1-2 hours, and calcining in a sintering furnace to obtain the modified ceramsite capable of efficiently removing phosphorus. The ceramsite prepared by theinvention has alkali supply and calcium release capabilities before and after modification, and can achieve the purpose of phosphorus removal. The modified ceramsite prepared by the invention is highin speed, large in adsorption capacity and remarkable in effect when used for adsorbing and removing phosphorus.
Owner:NANTONG UNIVERSITY
Peracetic acid wastewater treatment system
ActiveCN103204596AReduce strong oxidationSpeed up the release of oxygenWater contaminantsMultistage water/sewage treatmentOxidation reductionDeoxidization
The invention discloses a peracetic acid wastewater treatment system. The system comprises a reaction tank body, a pH value adjuster having a pH value probe and an automatic reducer adding device having an oxidation reduction potential probe, wherein the reaction tank body is divided into a catalytic deoxidization chamber, a chemical reduction chamber and a coagulation-precipitation chamber via a plurality of baffle plates, and the catalytic deoxidization chamber, the chemical reduction chamber and the coagulation-precipitation chamber are communicated in sequence; a water inlet and a water outlet are arranged on the reaction tank body; the water inlet is formed in the side wall of the upper part of the catalytic deoxidization chamber, and the water outlet is formed in the side wall of the upper part of the coagulation-precipitation chamber; a plurality of catalytic filler layers are arranged in the catalytic deoxidization chamber; a liquid outlet of the pH value adjuster is communicated with the catalytic deoxidization chamber; a liquid outlet of the automatic reducer adding device is communicated with the chemical reduction chamber; and both the pH value probe and the oxidation reduction potential probe stretch into the chemical reduction chamber. According to the peracetic acid wastewater treatment system, the strong oxidizing property in peracetic acid wastewater can be reduced, so that the microorganism killing capacity of the peracetic acid wastewater is reduced and the damage from peracetic acid in the wastewater on microorganisms in an anaerobic system or an aerobic system is avoided.
Owner:广东绿巨人环境科技有限公司
Urban sewage strengthening treatment method in cold area based on multi-point feed water adjustment
InactiveCN102001791BExtended staySmall volumeMultistage water/sewage treatmentNitrogenTherapeutic effect
The invention discloses an urban sewage strengthening treatment method in a cold area based on multi-point feed water adjustment, which relates to an urban sewage strengthening treatment method and solves the problems of incapability of synchronous and efficient denitrogenation and dephosphorization, poor treatment effect, high running cost and unsuitability for treating urban sewage in the cold area in the traditional technology of treating the urban sewage. The method comprises the following steps of: firstly, primary precipitation of sewage: dividing effluent of a primary settling tank into two parts or three parts through a distribution well for distribution; and secondly, synchronously introducing the effluent mixing liquid of an anaerobic tank and an anoxic tank 1 and the reflowing sludge at the head end of an aerobic tank into the aerobic tank, introducing the effluent of the aerobic tank into an anoxic tank 2, introducing the effluent of the anoxic tank 2 into a secondary settling tank through water drop, discharging a supernatant as treated purified water, reflowing a part of sludge at the lower layer, and discharging the rest as the remaining sludge. The invention can synchronously carry out efficient denitrogenation and dephosphorization, has favorable treatment effect and low running cost and is suitable for treating the urban sewage in the cold area.
Owner:HARBIN INST OF TECH
Reduction processing device and method for residual activated sludge
InactiveCN105254156AIncreased Transfer Utilization EfficiencyFast degradationSludge processingBiological sludge treatmentActivated sludgePressure cycle
The invention belongs to the technical field of sludge processing and particularly relates to a reduction processing device and method for residual activated sludge. A specific processing device and processing method are adopted for the device and method, the residual activated sludge is processed in a multi-period pressure cyclic change mode, the oxygen transferring and utilizing efficiency is greatly improved, the degrading speed of organic matter is increased, and therefore a higher reaction rate and higher removing efficiency are achieved; the processed sludge is discharged when pressure in a biological reactor is P, scum and water can be fast and efficiently separated, the phosphorus removal step is used in an assisting mode in the processing process, insoluble phosphate and the scum can float up together to be discharged, and therefore the purpose of removing phosphorus is achieved.
Owner:SHANDONG JIANZHU UNIV
A3O industrial wastewater biochemical treatment technology and apparatus thereof
ActiveCN103224291AAvoid affecting the phosphorus removal ratePromote refluxTreatment with aerobic and anaerobic processesActivated sludgeSewage
The invention discloses an A3O industrial wastewater biochemical treatment technology and an apparatus thereof. The A3O industrial wastewater biochemical treatment technology comprises the following steps: 1, injecting sewage having a pH value of 8-9 to a hydrolysis acidifying reaction tank, and allowing the sewage to sequentially flow through an anoxic denitrification reaction tank, an anoxic dephosphorization reaction tank and an activated sludge reaction tank; 2, returning sludge in the anoxic dephosphorization reaction tank to the hydrolysis acidifying reaction tank; 3, returning sludge in the activated sludge reaction tank to the anoxic denitrification reaction tank; and 4, returning sludge in the activated sludge reaction tank to the anoxic dephosphorization reaction tank, and discharging the sludge. The reflux ratio of the sludge is adjusted on the premise that the hydraulic retention time is not increased, the volumes of the above tanks are not enlarged and the engineering cost is not increased in order to reach COD reduction, denitrification and dephosphorization efficacies of a biochemical system, and make the ammonia nitrogen and total phosphorus in outlet water reach the first level standards of Integrated Wastewater Discharge Standard (GB8978-1996).
Owner:GUANGDONG XINDAYU ENVIRONMENTAL PROTECTION TECH CO LTD +1
Method for alkali leaching dephosphorization of phosphorus-containing iron ore
InactiveCN108384945ALow costTo achieve the purpose of phosphorus removalProcess efficiency improvementPhosphorus compoundsSodium phosphatesAluminium hydroxide
The invention discloses a method for alkali leaching dephosphorization of phosphorus-containing iron ore, and belongs to the technical field of the dephosphorization of the phosphorus-containing ironore. The method comprises the steps that the phosphorus-containing iron ore is crushed and finely ground, and the finely-ground phosphorus-containing iron ore or high-phosphorus iron ore concentrate and a certain concentration of alkali leaching solution are mixed, stirred and leached. Qualified dephosphorized iron ore or iron ore concentrate is prepared after solid-liquid separation. The leachingsolution is evaporated and then cooled to form a sodium phosphate coarse salt separated by crystallization. A dephosphorization high aluminum solution of partial of the coarse sodium phosphate is evaporated and passed into CO2, the composition content of Al2O3 and Na2O of the solution is adjusted, an aluminum hydroxide is prepared by seed precipitation, and the aluminum hydroxide is calcined to prepare an aluminum oxide. According to the method for alkali leaching dephosphorization of the phosphorus-containing iron ore, the recycling of alkali liquor can be realized while the by-product aluminum oxide and sodium phosphate products are produced, and technical support can be provided for the low cost and high value utilization of the phosphorus-containing iron ore or the high-phosphorus iron ore concentrate.
Owner:BEIJING MINING & METALLURGICAL TECH GRP CO LTD
Nitrogen removal and phosphorus removal active biological carrier for sewage treatment, and preparation method thereof
ActiveCN110407332AHigh activityReduce releaseWater contaminantsBiological treatment apparatusMicrosphereNitrogen gas
The invention relates to the technical field of sewage treatment, particularly to a nitrogen removal and phosphorus removal active biological carrier for sewage treatment, and a preparation method thereof, wherein the biological carrier comprises the following raw materials by weight: 65-75 parts of high-density polyethylene, 0.08-0.12 part of polyhydroxyl fatty amide, 0.5-0.9 part of compound enzyme, 5-15 parts of iron rust, 20-30 parts of modified Retinervus Luffae Fructus, and 8-12 parts of shell powder / zinc oxide hollow microspheres, wherein the preparation method of the shell powder / zincoxide hollow microspheres comprises: carrying out a microwave reaction on calcined shell powder and a metal zinc salt in a nitrogen atmosphere, spraying the obtained material into liquid nitrogen, andsolidifying. According to the present invention, the nitrogen removal and phosphorus removal effect is enhanced by using the modified Retinervus Luffae Fructus and the shell powder / zinc oxide hollowmicrospheres, and the surface is subjected to plasma treatment and immersion hydrophilic treatment, such that the product has characteristics of rapid film forming, good hydrophilicity, high biological activity and long service life.
Owner:SHENZHEN INSTITUTE OF INFORMATION TECHNOLOGY
Method for strengthening anaerobic organism phosphorus removal of waste water
InactiveCN108178296AThe process is simpleGood phosphorus removal effectWater treatment parameter controlWater contaminantsTotal phosphorusHydrogen phosphide
The invention discloses a method for strengthening anaerobic organism phosphorus removal of waste water. The method comprises the following steps: adding exogenous medicaments such as Na2S2O5 and / or Na2SO3 into phosphorus-containing waste water, mixing uniformly, adjusting the pH value of the waste water to be 6.0 to 8.0, carrying out an anaerobic digestion reaction at the temperature of 15 to 45DEG C, releasing hydrogen phosphide from total phosphorus inside the waste water under the metabolism effect of anaerobic microorganisms so as to be removed from a water body, so that the load of thetotal phosphorus entering an aerobiotic stage in the waste water biochemical treatment system is obviously reduced. The method is simple and practicable, and is obvious in phosphorus removal effect.
Owner:KUNMING UNIV OF SCI & TECH
Composite biological filler as well as preparation method and application thereof
PendingCN114349151AHigh total phosphorus removal rateExcellent total nitrogen indexWater contaminantsTreatment with anaerobic digestion processesCelluloseElectron donor
The invention relates to a composite biological filler. The composite biological filler comprises lignocellulose, a metal substance, oligosaccharide and a biological enzyme. The preparation method of the composite biological filler comprises the following steps: modifying lignocellulose through oligosaccharide and biological enzyme to obtain a modified lignocellulose material; pickling and drying the metal substance; and mixing the modified lignocellulose material with a metal substance. The invention relates to an application of a composite biological filler in nitrogen and phosphorus removal. Lignocellulose is used as a slow-release carbon source and a biofilm formation carrier, and can release organic matters as electron donors for denitrification of denitrifying bacteria under the action of water soaking and microorganisms, so that nitrate nitrogen is reduced into nitrogen, and sewage denitrification is realized; the redox potential of the water body is reduced by metal substances, and a reduction environment which is more beneficial to the survival of denitrifying bacteria is created; the composite biological filler is mainly used for efficient nitrogen removal of domestic sewage, river and lake water bodies, aquaculture wastewater and the like, and has a certain phosphorus removal function.
Owner:武汉江城泽源生态工程技术有限公司 +1
Lanthanum-supported coating material and phosphorus-fixing material to control lake eutrophication, their preparation methods, phosphorus-fixing method and phosphorus-fixing grid plate
InactiveCN109081416ASimple preparation processTo achieve the purpose of phosphorus fixationWater contaminantsWater/sewage treatmentAcetic acidEutrophication
The invention mainly relates to the field of water pollution treatment and control and relates to a lanthanum-supported coating material and phosphorus-fixing material to control lake eutrophication,their preparation methods, a phosphorus-fixing method and a phosphorus-fixing grid plate. In the preparation of the lanthanum-supported coating material, acetic acid is added to chitosan such that thechitosan is fully dissolved to obtain solution 1; lanthanum nitrate solution is added to the solution 1 to obtain solution 2 after full dispersion; ammonia water is added to the solution 2 such thatcolloid is separated out from the solution 2, and the separated colloid is the lanthanum-supported coating material. The lanthanum-supported coating material prepared herein can react with phosphatesand convert them into LaPO4, thereby arriving at phosphorus fixation; the preparation method of the lanthanum-supported coating material is simple and handy.
Owner:XI'AN UNIVERSITY OF ARCHITECTURE AND TECHNOLOGY
Peracetic acid wastewater treatment system
ActiveCN103204596BReduce strong oxidationSpeed up the release of oxygenWater contaminantsMultistage water/sewage treatmentWater treatment systemWastewater
The invention discloses a peracetic acid wastewater treatment system. The system comprises a reaction tank body, a pH value adjuster having a pH value probe and an automatic reducer adding device having an oxidation reduction potential probe, wherein the reaction tank body is divided into a catalytic deoxidization chamber, a chemical reduction chamber and a coagulation-precipitation chamber via a plurality of baffle plates, and the catalytic deoxidization chamber, the chemical reduction chamber and the coagulation-precipitation chamber are communicated in sequence; a water inlet and a water outlet are arranged on the reaction tank body; the water inlet is formed in the side wall of the upper part of the catalytic deoxidization chamber, and the water outlet is formed in the side wall of the upper part of the coagulation-precipitation chamber; a plurality of catalytic filler layers are arranged in the catalytic deoxidization chamber; a liquid outlet of the pH value adjuster is communicated with the catalytic deoxidization chamber; a liquid outlet of the automatic reducer adding device is communicated with the chemical reduction chamber; and both the pH value probe and the oxidation reduction potential probe stretch into the chemical reduction chamber. According to the peracetic acid wastewater treatment system, the strong oxidizing property in peracetic acid wastewater can be reduced, so that the microorganism killing capacity of the peracetic acid wastewater is reduced and the damage from peracetic acid in the wastewater on microorganisms in an anaerobic system or an aerobic system is avoided.
Owner:广东绿巨人环境科技有限公司
A method for enhancing anaerobic biological phosphorus removal of wastewater by coupling microcurrent with biochar
ActiveCN108358311BTotal phosphorus dropTo achieve the purpose of phosphorus removalTreatment by combined electrochemical biological processesTreatment with anaerobic digestion processesPhosphateAnaeromicrobium sediminis
Owner:KUNMING UNIV OF SCI & TECH
Circulating biological selection reactor for livestock and poultry culture sewage treatment
ActiveCN105174450ANo reflow requiredNo sewageTreatment with aerobic and anaerobic processesBiological adaptationNitration
The invention discloses a circulating biological selection reactor for livestock and poultry culture sewage treatment. The reactor is mainly composed of a gas outlet, a reactor body, a water inlet, a sewage collecting pool and a water outlet, livestock and poultry culture sewage enters an anaerobic zone 1 through the water inlet and undergoes anaerobic denitrification, sludge in an incremental portion directly falls into the sewage collecting pool, anaerobic sewage overflows an overflow external plate, overflowed sewage is directly introduced to a biological selection zone 1 through a pipeline and undergoes biological adaptation, obtained sewage enters a biological aerobic zone 1 and undergoes selective biological aeration treatment, a nitration solution directly enters an anaerobic zone 2 and undergoes denitrification, cycle treatment is carried out, a gas is discharged from the gas outlet, sewage obtained after biological aerobic zone 3 treatment goes through a water fender, obtained water is drained from the water outlet, and sludge in the sludge collecting pool is discharged through a sludge pump. The reactor has the advantages of no refluxing of sludge or the nitration solution, realization of phosphorus removal through repeated anaerobic and aerobic treatment of sludge, direct falling of incremental and residual sludge to bottom without sludge discharge, and realization of thorough separation of three phases positioned in different directions.
Owner:工大环境股份有限公司
Acinetobacter CL04 and an application thereof in village sewage phosphorus-removing processing
ActiveCN108774625AEfficient phosphorus removal effectTo achieve the purpose of phosphorus removalBacteriaWater contaminantsPhosphateWastewater
The invention provides a strain of Acinetobacter CL04 and an application thereof. A bacterial strain has the advantages of effective phosphorus-accumulating and becomes a dominant bacteria in sewage processing devices, phosphorus in the sewage can be absorbed in a large number, polyphosphate is formed in vivo, and the purpose of removing the phosphorus is achieved through exhausting bacterial sludge deposition. The bacterial strain can be well integrated into the current common biological method sewage processing technology, is suitable for village, city life sewage, is also suitable for sewage and waste water of aspects like river, business and industry, change is not required or improvement cost is lower, and phosphate removing has wide application value in the sewage processing devices(such as village purifying tanks, city sewage treatment plants, and the like.
Owner:ZHEJIANG SHUANGLIANG SUNDA ENVIRONMENTAL PROTECTION CO LTD
Nitrogen and phosphorus removal composite filler and purification device containing same
PendingCN114368833ATo achieve the purpose of removing pollutantsEfficient denitrificationWater treatment parameter controlWater contaminantsCelluloseElectron donor
The invention relates to a nitrogen and phosphorus removal composite filler which comprises lignocellulose, a metal substance, oligosaccharide and a biological enzyme. The invention relates to a purification device which comprises a treatment tank and a composite filler, wherein the composite filler is applied to a suspended type or a fixed type in a purification tank. When the composite filler is suspended, the composite filler can be prepared into a spherical shape; when the composite filler is fixed, the composite filler can be prepared into a square shape. Lignocellulose is used as a slow-release carbon source and a biofilm formation carrier, provides a carbon source as an electron donor for denitrification of denitrifying bacteria, reduces nitrate nitrogen into nitrogen, and realizes sewage denitrification; metal substances can reduce the oxidation-reduction potential of a water body so as to facilitate survival of denitrifying bacteria, stimulate microbial evolution to increase the diversity, strengthen microbial aggregation to increase the biomass and improve the biodegradability, and phosphorus in sewage can be removed through adsorption and precipitation of metal ions; the nitrogen and phosphorus removal composite filler is mainly used for efficient nitrogen removal of domestic sewage, river and lake water bodies, aquaculture wastewater and the like, and has a certain phosphorus removal function.
Owner:江鹰
Integrative three-bent tridimensional cyclic oxidation ditch
ActiveCN101531439ACompact structureSimple structureTreatment with aerobic and anaerobic processesMultistage water/sewage treatmentDitchResidential area
The invention relates to an integrative three-bent tridimensional cyclic oxidation ditch, which comprises an oxidation ditch, a solid-liquid separator and an aeration rotary brush. The upper part of the oxidation ditch is provided with a water inlet, and the aeration rotary brush is arranged in front of the water inlet. The integrative three-bent tridimensional cyclic oxidation ditch is characterized in that the solid-liquid separator is arranged at the side of the oxidation ditch; two partition boards are arranged in the oxidation ditch to divide the oxidation ditch into an upper aerobic zone, a middle anoxic zone and a lower anaerobic zone as three communicated chambers; and the bottom of the solid-liquid separator is communicated with the lower anaerobic zone, and the upper part of the solid-liquid separator is provided with a water outlet. The ditch has the advantages of compact structure, simple construction and stable and reliable treating effect; compared with the prior oxidation ditch, the occupied area can be reduced by 66 percent; and the ditch is particular suitable for domestic sewage treatment for countryside scattered residential areas, army camps, docks, and the like.
Owner:JIANGSU JINSHAN ENVIRONMENTAL PROTECTION TECH
Biological carrier for riverway purification treatment and preparation method thereof
PendingCN112624352AEnsure sewage purification abilityGood governanceBiological water/sewage treatmentEngineeringStearic acid
The invention relates to the technical field of sewage treatment, and particularly relates to a biological carrier for riverway purification treatment and a preparation method of the biological carrier. The biological carrier is prepared from bacillus, saccharomycetes, nitrifying bacteria, paracoccus denitrificans, stearic acid, glucose, calcium carbonate and hollow glass beads. The preparation method comprises the step of mixing the raw materials. The biological carrier for riverway purification treatment can effectively inhibit proliferation of algae in a water body so as to achieve a good sewage treatment effect.
Owner:ZHENGZHOU HOLLOWLITE MATERIALS CO LTD
Sodium alginate-embedded iron carbon-medicine stone high-efficiency phosphorus removal particles and preparation method thereof
ActiveCN111377497BWide variety of sourcesEasy to prepareWater contaminantsWater/sewage treatment by flocculation/precipitationActivated carbonFlocculation
Owner:ZHENGZHOU UNIV +1
Landscape type water ecological purification system
InactiveCN110902838AReduce layoutReduce decreaseTreatment using aerobic processesWater contaminantsEcological environmentEnvironmental engineering
The invention discloses a landscape type water ecological purification system, belonging to the technical field of garden design. The invention aims to provide the landscape type water ecological purification system for improving the ecological environment of a water body. Main points of a technical scheme of the invention are as follows: the landscape type water ecological purification system comprises an ecological floating bed area and an underwater aeration area, wherein the ecological floating bed area is composed of a plurality of ecological floating beds; the underwater aeration area comprises a submersible aerator and a power generation device used for generating power; the submersible aerator comprises a submersible pump; the inlet of the submersible pump is connected with an airinlet pipe; the outlet of the submersible pump is connected with an aeration disc; and at least one aeration opening is arranged at the edge of the aeration disc. According to the invention, the waterbody is purified through combination of aquatic plants and an aerator; and the quality of the water body is improved.
Owner:江苏园景工程设计咨询有限公司
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