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205 results about "Contaminated Substance" patented technology
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Method for fixing pollutants in pollution source soil in abandoned mine fields and application thereof
ActiveCN101722177AEffective absorptionInhibition of dissolutionContaminated soil reclamationSoil-working methodsPollution soilWastewater
The invention discloses a method for fixing pollutants in pollution source soil in abandoned mine fields and application thereof. The fixing method comprises the steps of loosening the soil, digging holes, adding modifier and fertilizer to balance the soil in the holes, planting energy trees in the soil in the holes, sowing pioneer grass seeds on the topsoil in the holes, and the like. The invention uses chemical modifier and fertilizer to modify the planting condition of the polluted soil in mine areas, then interplants pioneer grass, fast-growing energy trees and other plants to effectively fixe substances such as heavy metal pollutants in soil, avoid the pollutants from being discharged to downstream areas in the form of acidic mine waste water to pollute the environment and damaging the ecology.
Owner:广东华农大城市规划设计院有限公司
Sewage treatment method
InactiveCN102718358AReduce inputReduce the amount of introductionMultistage water/sewage treatmentWater treatmentMicroorganism
Owner:ZHENGZHOU MENGXI ENVIRONMENTAL PROTECTION TECH
Magnetic-assistance electrokinetic remediation device for contaminated soil
ActiveCN103418607AAchieve degradation and removalAccelerated Directed MigrationContaminated soil reclamationEngineeringElectric field
The invention discloses a magnetic-assistance electrokinetic remediation device for contaminated soil. According to the magnetic-assistance electrokinetic remediation device for the contaminated soil, contaminants in the contaminated soil can be enriched in a regulated area in an acceleration mode through the effect of an extra electric field and the effect of an extra magnetic field, so that the purpose of cleaning the contaminated soil is achieved. The magnetic-assistance electrokinetic remediation device for the contaminated soil comprises an electrode liquid addition tube, an anode plate, a processing area, a cathode column, an electrode chamber, a magnet, an outer shell and an electrode liquid discharging tube. The contaminated soil is placed into the processing area, electrode liquid enters the area of the electrode chamber through a pipeline, the contaminants in the contaminated soil can rapidly transfer through the extra electric field and the extra magnetic field, and the concentration of the partial contaminants is improved. The magnetic-assistance electrokinetic remediation device for the contaminated soil is simple in structure, low in construction cost and easy to operate, can achieve degradation and removal of various contaminants in the contaminated soil.
Owner:DALIAN DEETOP ENVIRONMENTAL TECH CO LTD
Treatment method of river polluted bed mud
InactiveCN101786720AImproved redox propertiesImprove and relieve the degree of black and odorWater contaminantsSustainable biological treatmentSalt depositOrganopónicos
The invention discloses a treatment method of river polluted bed mud, comprising: adding oxidant into a polluted river to ensure that the bed mud on the surface layer is in the oxidation state; and preferably, adding water-solubility calcium salt and ferric salt. The invention ensures that the whole self-cleaning process of the river is in the aerobic state all the time by improving the oxidation reduction property of the polluted bed mud, thus creating conditions for aerobic microorganisms, amplifying bed mud aerobic microorganisms, and leading the aerobic microorganisms to digest organic pollutants; and in addition, the organic pollutants are completely oxidized and degraded into complete oxides such as CO2, H2O, NO2, SO4<-2> and the like, blackening and odor-causing substances, such as H2S, methyl mercaptan, FeS and the like produced during the anaerobic degradation of organic matters can be quickly oxidized, and the black and odor degree of water body can be effectively improved and remitted. Meanwhile, the calcium salt, the ferric salt and phosphorus-deposited nutritive salt are simultaneously added to lower river pollution degree and eutrophy level. The method of the invention has simple operation and strong selective pertinence, can treat in situ, almost does not damage the ecological balance of the original river and has favorable treatment effect.
Owner:广州市净水有限公司 +1
Method for preservation under pressure
InactiveUS6033717AReduced activityReduced viabilityMilk preservationDough treatmentMicroorganismUltra high pressure
PCT No. PCT / EP97 / 02711 Sec. 371 Date Jul. 12, 1999 Sec. 102(e) Date Jul. 12, 1999 PCT Filed May 15, 1997 PCT Pub. No. WO97 / 43914 PCT Pub. Date Nov. 27, 1997Method for substantially decreasing the viability of microorganism and deactivating enzymes in a contaminated substance by exerting a high pressure the substance. The substance is conducted in a steady flow through and open narrow tube while the pressure difference between the entrance and the exit of the tube is maintained at 100 Mpa or more. The temperature rise of the product while passing through the tube can be confined to less than 5 DEG C. The method provides a continuous ultra high pressure preservation process suitable for processing foods.
Owner:UNILEVER PATENT HLDG BV
Vertical barrier fencing for containing contaminated materials, and use thereof
InactiveUS20110305517A1Protecting uncontaminated areaInstallation economyWater cleaningClimate change adaptationFiberMarsh
A system for separating contaminated materials from clean natural waterways and environmentally safe areas that thrive in wildlife breeding grounds, wetlands, marsh grass, natural vegetation, and wildlife habitats. The invention provides an effective and relatively inexpensive apparatus and process for hazardous material containment along shorelines, rivers, and estuaries (for maximum protection against contamination). Vertical erected fiber mesh filter fabric which allows clean water molecules to pass through but does not allow heavier / larger contaminated molecules to enter into uncontaminated areas, either from surface areas or subsurface areas. A floating boom acts as an oscillating scrub brush as tidal waters increase (rise) as well as an absorbent pad for the contaminated materials. One-way tidal doors allow juvenile sea life to naturally migrate to deeper safe havens with normal daily tidal changes.
Owner:BORRIES SAMUEL DOUGLAS
Method for electrokinetic decontamination of a porous solid medium
InactiveUS20110186444A1Easy to prepareEasy to useElectrolysis componentsConductive material chemical/electrolytical removalChemical speciesSludge
The invention relates to a method for electrokinetic decontamination of a porous solid medium, which comprises:a) extracting the contaminating species present in the solid medium in an electrolyte appearing as an essentially inorganic gel, this extraction being obtained by applying an electric current between two electrodes positioned at the surface and / or in the interior of the solid medium, the contact of at least one of these electrodes with said solid medium being ensured by a layer of said gel,b) drying the gel containing the thereby extracted contaminating species until a dry residue is obtained which fractures, andc) removing the thereby obtained dry residue from said solid residue.Applications: decontamination of materials with a cement matrix, notably within the scope of dismantlement of military or industrial installations, in particular nuclear installations, or the rehabilitation of installations likely to have been contaminated by ecotoxic or radiological chemical species; clearing pollution of geological soils, sediments and sludges.
Owner:COMMISSARIAT A LENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
Method for treating odorous gas by utilizing solution of hexavalent ferric salt
InactiveCN102068895AEfficient and stable removalImprove stabilityDispersed particle separationNervous systemToxicology
The invention belongs to the fields of treating odorous pollutants through chemical oxidation technology, and relates to a method for treating odorous gas by utilizing solution of hexavalent ferric salt. Odor is harmful to human respiratory, circulatory, digestive, endocrine and nervous systems, and odor pollution has become one of numerous environmental pollution problems to be solved; and in the method, the solution of hexavalent ferric salt and odorous substances are subjected to a chemical oxidation reaction, so that active groups in the odorous substances are changed. Due to oxidation of the hexavalent ferric salt on hydrogen sulfide, ammonia, methyl mercaptan and other odorous substances in the odorous gas, the active groups in the odorous waste gas are oxidized into non-toxic and harmless sulfate and other products. Therefore, the aim of purifying the odorous waste gas is fulfilled, and the odor of the odorous waste gas can be effectively removed.
Owner:SUN YAT SEN UNIV
Separation and selection tool based on Au nano channel array and preparation method thereof
InactiveCN1799683AShort residence timeReduce adsorptionSemi-permeable membranesChemical reactionMacromolecule
The invention relates to a separation filtration device based on the golden nanometer channel array, which integrates a nanometer pipe array with uniform diameter in the solid support as the mold material of inorganic golden nanometer channel array. The preparation of said golden nanometer channel array of mold material comprises six steps: washing mold material; hypersensitizing, activating, the aggradation of nanometer gold; washing channel; and the decoration of golden nanometer channel array. Since used support is easy to be attained with simple synthesizing method, said golden nanometer channel has better rigidity while its surface is easy to generate variable chemical reactions, and it can induce selective factor easily to realize the separation and detection of biological active material, natural medical macromolecule and environment pollution material. And it is nondestructive inspection with high separation efficiency to apply the actual inspection separation environment. Said preparation method of separation filtration device has better generality and advanced property.
Owner:THE FIRST INST OF OCEANOGRAPHY SOA
Biological Aerated Filter and Its Sewage Treatment Process
ActiveCN102259980AImprove removal efficiencyStrong impact resistanceTreatment with aerobic and anaerobic processesBiological filterEngineering
The invention discloses a biological aerated filter and a sewage treatment process thereof. An inner cavity of a tank body is divided into an anoxic reaction region at the lower half part and an aerobic reaction region at the upper half part. A backwashing drain pipe, an aerator pipe and a filter material bearing structure are arranged between the anoxic reaction region and the aerobic reaction from bottom to top sequentially. Biological filter materials in the aerobic reaction region are stacked on the filter material bearing structure. The anoxic reaction region is provided with a pluralityof groups of hangers for hanging the anaerobic biological filter materials. The lower part of the tank body is provided with a water inlet pipe. The top of the tank body is provided with a drain pipe. The drain pipe is provided with a bypass return pipe communicated with the water inlet pipe at the bottom of the tank body. In the invention, the anoxic region and the aerobic region which are arranged separately conventionally are integrated to carry out pre-denitrification, so that not only are pollutants in water effectively removed, but also the pollutant removing efficiency is high, equipment is simple and the biological aerated filter is easy to operate and is convenient to maintain.
Owner:江苏林格环境工程集团有限公司
Nanometer medicament for simultaneously removing arsenic, phosphorus and fluorine in water and preparation method of nanometer medicament
ActiveCN107311277AImprove solubilityLarge particlesWater contaminantsWater/sewage treatment by flocculation/precipitationSpecific gravityChitosan derivative
Owner:GUIZHOU MEIRUITE ENVIRONMENTAL PROTECTION TECH
Composite medium biological filter sewage treatment method and matched device
InactiveCN102531173AAchieve emission standardsImplement resourcesTreatment with aerobic and anaerobic processesComposite mediaResource utilization
The invention discloses a composite medium biological filter sewage treatment method and a matched device. The device comprises a perforated water distribution pipe, a filter main body, a packing layer, a ventilating pipe, a water outlet pipe, a water collection chamber and an aerator pipe. The packing layer is formed in a mode that a composite medium rapid infiltration layer and a composite medium mixing layer are arranged inside the filter main body at intervals; sewage is uniformly distributed in the composite medium rapid infiltration layer through the water distribution pipe, further infiltrates after being primarily purified by the composite medium rapid infiltration layer, and continuously infiltrates after being sufficiently contacted with packing in the composite medium mixing layer; and pollutants in the sewage are adsorbed, degraded and transformed step by step under the combined action of the packing and microorganisms in the packing; and finally, the high efficiency purification of the sewage is implemented. According to the invention, a medium has wide source and low price; the sewage is deeply purified under the combined action of various microorganisms with different functions; and finally, the discharge with standard level or the resource utilization of the sewage is implemented.
Owner:ZHEJIANG UNIV
Method for in-situ remediation of sediment in black and odorous water body
InactiveCN111087085AHigh transparencyEliminate black odor in a short timeWater treatment compoundsWater contaminantsEcological environmentEngineering
The invention relates to the technical field of treatment of sediment in rivers and lakes, and provides a method for in-situ remediation of sediment in a black and odorous water body. The method comprises the following concrete steps: sequentially adding zeolite powder, calcium peroxide, highly-efficient polyaluminium chloride, a natural mineral composite material, modified diatomite and modifiedattapulgite into the sediment, carrying out stirring while adding, and completing addition within 1-2 hours; continuing stirring for 20-40 minutes after completion of material addition; adding an activated denitrifying bacteria agent, a photosynthetic bacteria agent and a bacillus subtilis agent into the sediment, and carrying out bottom aeration for 1-4 hours; and after 3-7 days, planting submerged plants. The method provided by the invention is simple and practicable, short in construction time and good in ecological effect, removes sediment pollutants in situ, recovers the water area environment of an overlying water body at the same time, eliminates the black and odorous water body in a short period of time, improves the transparency of a water body, solidifies and eliminates pollutants in the sediment, reduces the contents of COD, ammonia nitrogen and total phosphorus in the overlying water body, and recovers the water ecological environment in a short period of time.
Owner:中国市政工程西北设计研究院有限公司
Manifold for a filling unit for filling a plurality of articles with a pourable product
There is disclosed a manifold for a filling unit for filling a plurality of articles with a pourable product, comprising: - a first flange (21), which can be fixed to a tube (3) for filling a tank (2) with a pourable product; - a second flange (22), which can rotate about an axis (A) with respect to first flange (21), can be fixed to tank (2), and defines a passage (23; 24) for a first fluid other than pourable product and adapted to be conveyed, in use, inside tank; - a fluidic line (18), which is bounded between first flange (21) and second flange (22) and is adapted to be filled with a barrier second fluid in order to prevent contaminant agents from reaching passage (23; 24); and - a sealing element (53), which is interposed between first flange (21) and second flange (22); characterized in that manifold (4) further comprises: - at least a piston (70) which is movable along axis (A) and is operatively connected to sealing element (53); and - a pneumatic circuit (71), which is operable to exert a pressure on a third fluid acting, in use, on said piston (70), so as to press said piston (70) against said shoe (53) along said axis (A)).
Owner:SIDEL S. P. A.
Device and method for removing pollutants in rural domestic sewage
ActiveCN104355490AImprove processing efficiencyLow operation and maintenance costsMultistage water/sewage treatmentMunicipal sewageWaste water treatment plant
The invention discloses a device for removing pollutants in rural domestic sewage. The device comprises a three-grid septic tank, a filter screen, an anaerobic suspended packed bed reaction tank, a hypoxic aeration tank, a vertical flow sedimentation tank, an artificial aquatic plant bed and a phosphorus absorbing tank which are sequentially communicated; and the three-grid septic tank, the filter screen, the anaerobic suspended packed bed reaction tank, the hypoxic aeration tank and the vertical flow sedimentation tank are arranged on the upper part side by side, while the artificial aquatic plant bed and the phosphorus absorbing tank are arranged on the lower part side by side; and a water distribution gallery is additionally arranged between the water outlet of the vertical flow sedimentation tank and the water inlet of the artificial aquatic plant bed. The device disclosed by the invention is quite high in rural domestic sewage treatment efficiency, and effluent quality can reach class-A standard in Pollution Discharge Standard for Municipal Sewage Treatment Plant (GB18918-2002); and meanwhile, the device is small in occupied area, low in investment, simple in operation, management and maintenance, and low in operation and maintenance expenses.
Owner:TAIZHOU UNIV
A plate type biofiltration tower and waste gas treatment process thereof
ActiveCN1864818AImprove blockageEven contactDispersed particle separationAir quality improvementSimple compoundBio filtration
The invention provides a plate-type biological filtration tower and the process of treating waste gas. The tower plate is produced according to ratio between layer thickness and tower diameter being 0.2-0.5 and the whole biological filtration tower composes a plurality of tower plates. The nutriment liquid is directly sprayed to every tower plate and counter-current contacts with waste gas from tower bottom to remove pollutant in waste gas; the pollutant is oxided to carbon dioxide, water and other simple compound. The top tower plate is used as dehydrater for gas current to spray cleaning liquid interstitially (usually 1% diluted alkaline liquor). The invention is characterized in that: the contact between gas and liquid is even and thorough, the spray strength can be controlled according to pollutant load, the supporting intensity of filler layer is small, and dewatering system is installed inside.
Owner:ZHEJIANG UNIV OF TECH
Compound microorganism bacterium agent sewage cleaning technology
InactiveCN103539265AHigh flocculation rateReduce dosageBiological water/sewage treatmentBacillus licheniformisBiology
The invention discloses a compound microorganism bacterium agent sewage cleaning technology which belongs to the technical field of bioengineering. A great amount of contaminants are discharged into water bodies due to human activities, and as a result, the physical and chemical properties or biocoenosis compositions of the water bodies are changed, so that the use values of the water bodies are decreased. The severe consequence of water body pollution affects not only the health of human being but also industrial and agricultural production. According to the technology, efficient flocculation strain jelly bcereus, bacillus subtilis, aerobic bacillus licheniformis and nitrophilous actinomycete micromonospora are screened and adopted to prepare a compound microorganism bacterium agent (special for sewage). The compound microorganism bacterium agent has the advantages of small usage amount, high flocculation force, quick organic matter decomposition, no antagonism, good aerobic performance, no odor, no secondary pollution, pollution decomposition rate higher than pollution rate, high adaptability and viability, low cost and industrial production availability.
In-situ repair method for polluted sediment nitrogen nutritive salt and in-situ repairing pile applied to in-situ repair method
ActiveCN102964040AHigh activityPromote degradationSludge treatmentAmmoniacal nitrogenDenitrobacterium
The invention discloses an in-situ repair method for polluted sediment nitrogen nutritive salt and an in-situ repairing pile applied to the in-situ repair method, and belongs to the field of sediment in-situ repair. The in-situ repair method comprises the following steps of (1) mixing a nitrogen immobilization material and a slow-release oxygen material according to a mass ratio of (5-15):1; (2) putting the mixed material into in-situ repairing piles; (3) vertically inserting the in-situ repairing piles into sediment so that the in-situ repairing piles are uniformly distributed on a plane of an area to be repaired; and (4) covering the mixed material in the step (1) on the surface of the sediment with the inserted in-situ repairing piles to obtain a sediment in-situ covering layer with the thickness of 20-30 cm. According to the in-situ repair method disclosed by the invention, ammonia nitrogen in the sediment can be adsorbed, the diffusion of polluted substances to upper covering water can be reduced, dissolved oxygen in the sediment and a hydrospheric surface is improved, the growth of aboriginal denitrified bacteria is facilitated, and nitrogen in the sediment is facilitated to be metabolized out of a system so that the purpose of in-situ repair of surface water sediment is realized.
Owner:NANJING UNIV
Microbial products and their use in bioremediation and to remove paraffin and other contaminating substances from oil and gas production and processing equipment
The subject invention provides microbe-based products, as well as their use in simultaneously enhancing oil recovery from an oil well while efficiently removing contaminating compositions such as biofilm, scale, paraffin, and / or asphaltenes from oil production equipment and oil-bearing formations. The subject invention can also be used to disperse paraffin and asphaltene precipitates, and to reduce the viscosity of heavy crude oil. The subject invention further provides materials and methods for bioremediation of hydrocarbon-contaminated sites.
Owner:轨迹方案IPCO有限责任公司
Bio-enzyme treating agent of municipal wastewater
InactiveCN103130334AImprove biological activityRealize the combinationBiological water/sewage treatmentPectinaseNitrifying bacteria
The invention discloses a bio-enzyme treating agent of municipal wastewater. The bio-enzyme treating agent of the municipal wastewater is characterized by comprising 10-16% of protease, 10-15% of cellulose, 10-14% of lipase, 6-10% of pectinase, 6-8% of bacillus, 6-8% of nitrifying bacteria, 0.5-1.5% of bamboo sap, 15-20% of diatomite and bentonite making up to 100%. The bio-enzyme treating agent is a biological agent which treats the municipal wastewater by means of the biological catalysis technology which has a biodegradable function, can greatly eliminate foul smell, enables liquid pollutants to be rapidly degraded, reduces the size of solid matters, rapidly purifies the pollutants, not only has a good treating effect, but also greatly reduces the operating cost of wastewater treatment, enables the water quality after purification to be more stable, treats pollution in an energy-saving and high-efficient mode, and has significant economic benefits and environmental benefits.
Owner:XIAN REJE BIOLOGICAL TECH
Micro Sample Heating Probe and Method of Producing the Same, and Analyzer Using the Micro Sample Heating Probe
InactiveUS20090072135A1Small diameterBioreactor/fermenter combinationsBiological substance pretreatmentsNoise generationProduct defect
An object of the present invention is to extract a micro foreign body of a few μm, which may cause a product defect of a device or the like, and to subject the foreign body to a mass analysis at a favorable S / N ratio without any contamination. A micro sample heating probe includes a sample holder made up of two members different in diameter, a supporting part, and a terminal part. The sample holder includes a heating mechanism only in a limited part, and just a region extremely close to the micro sample being an analysis target is heated locally. Therefore, even when a contaminated substance is attached to the probe, such substance is not heated, thereby preventing a noise from occurring, and enabling an analysis at a quite favorable S / N ratio.
Owner:HITACHI LTD
Modularized movable soil leaching system
InactiveCN110842017AEfficient repair effectReduce the impactContaminated soil reclamationSoil scienceWastewater
The invention provides a modularized movable soil leaching system. The modularized movable soil leaching system comprises: a soil feeding device, which is used for receiving contaminated soil and capable of discharging the contaminated soil while vibrating; a vibration feeding hole, which is used for receiving the contaminated soil discharged by the soil feeding device and quantitatively discharging the contaminated soil by controlling a vibration speed; a conveying belt, which is used for receiving and conveying the contaminated soil quantitatively discharged from the vibration feeding hole;a granularity screening machine, which is provided with a screening net and is used for screening the contaminated soil conveyed by the conveying belt into soil with granularity smaller than specifiedgranularity and contaminated soil with granularity larger than the specified granularity; a high-pressure leaching device, which is used for carrying out high-pressure leaching on the contaminated soil with the granularity smaller than or equal to the specified granularity received from the granularity screening machine, separating the contaminated soil into remediated soil and contaminants and discharging the remediated soil and the contaminants; and a screening device, which is used for receiving the remediated soil and the pollutants discharged by the high-pressure leaching device, discharging the remediated soil with granularity greater than the specified granularity as purified soil, and discharging the pollutants with granularity smaller than the specified granularity as waste waterwith.
Owner:智优株式会社
Rapid lake water sampling and detecting method
InactiveCN110658030AGuaranteed accuracyAccurate Water Quality InformationComponent separationMaterial analysis by observing effect on chemical indicatorSoil scienceWater source
The invention discloses a rapid lake water quality sampling and detecting method, and belongs to the technical field of lake treatment. According to the method, a rapid water body sampling device samples a water body of a water area to be detected, a collected water body sample is processed, the processed water body sample is detected, and an obtained detection result is compared to obtain accurate water quality information. Thus, various accurate detection is carried out on a lake water source, chemical pollutants causing water pollution are rapidly monitored from the aspects of different pollutants, support is provided for establishing a rapid emergency response and early-warning system, the water source is collected in different periods to obtain accurate water quality information, thewater source in different periods is further divided into samples at different temperature, the water quality of the water source in the area at different temperature can be detected, and the accuracyof water quality detection is effectively guaranteed.
Owner:HUNAN UNIV OF ARTS & SCI
Rapid biofilm formation method for low C/N ratio waste water treatment using calcium ion-regulated biofilm method
ActiveCN107381777APromotes initial adhesionGood adhesionTreatment by combined electrochemical biological processesWater treatment compoundsSolubilityTotal nitrogen
The invention discloses a rapid biofilm formation method for low C / N ratio waste water treatment using a calcium ion-regulated biofilm method, belonging to the field of biofilm-process waste water treatment. The method is characterized by comprising the following steps: (1) measuring biochemical oxygen demand 5 / total nitrogen (BOD5 / TN) of the low C / N ratio waste water; (2) measuring the polysaccharide concentration of dissolved substances in the low C / N ratio waste water and the salinity of the waste water; (3) measuring the contact angle of a filler carrier used by the biofilm method for treating the low C / N ratio waste water; (4) selecting a proper regulation and control scheme according to the related measured values; (5) enabling a biofilm reactor to run, and adding a certain amount of rhamnolipid and calcium chloride into the low C / N ratio waste water every day until biofilm formation is completed. According to the rapid biofilm formation method, calcium ions are complexed with pollutants in the low C / N ratio waste water, so that the attachment and colonization of the dissolved substances and microorganisms in the waste water are accelerated, and the biofilm formation effect is further improved.
Owner:NANJING UNIV
Microemulsion liquid membrane chemical and treating method thereof applicable to treating heavy metal, ammonia nitrogen and radioactive wastewater
ActiveCN102757107AReduce swellingLow selectivitySemi-permeable membranesContaminated soil reclamationAmmoniacal nitrogenOrganic solvent
The invention discloses a microemulsion liquid membrane chemical applicable to treating heavy metal, ammonia nitrogen and radioactive wastewater. The microemulsion liquid membrane chemical comprises a membrane phase and an internal water phase, the membrane phase is mainly composed of an organic solvent, a support film agent, a carrier substance and water, and the volume ratio between the membrane phase and the internal water phase is 1:(0.5-2). A method for treating waste water by the microemulsion liquid membrane chemical includes the following steps of firstly using the membrane phase and the internal water phase to prepare a W / O type emulsion, then adding the W / O type emulsion in an extract tower to perform a waste water treatment, transferring a mixed liquor obtained from the treatment to a liquid separating tower to perform still standing and layering, subjecting layered oil phase to a subsequent high pressure electrostatic emulsion breaking, releasing pollutants from an emulsion dispersed phase to form an organic phase and a pollutant containing solution, recycling the organic phase, and subjecting the pollutant containing solution to a recovery processing. The microemulsion liquid membrane chemical and the treating method thereof applicable to treating heavy metal, ammonia nitrogen and radioactive wastewater have the advantages that the equipment investment is small, the land occupation is small, processing capabilities are high, the cost is low, the secondary pollution is absent, the fluidized processing and all-way automatic control can be achieved, and the like.
Owner:CHANGSHA RES INST OF MINING & METALLURGY
Device and uses of emulating distribution behavior of dissolved matter in multiple phase system
InactiveCN1879967AFree and easy to moveGuaranteed isolationLaboratory glasswaresMagnetic polesMagnetic stirrer
The invention relates to a simulator for researching the distribute operation of soluble material in multi-phase system and the application of said device, wherein said simulator is formed by balance device and mixer; the balance device is formed by outer room and central room; the outer room and central room have round holes (8), while they are fixed on one horizontal plate (9); the connection between each room and horizontal plate is sealed and mounted; the outer rooms are independent and through to the central room via baffle film (11); the outer room and central room are independently mounted with magnetic mixer (17), to be rotated via the magnetic mixer magnetic pole (19), to distribute the soluble material of each room uniformly. The inventive device can separate the solid material in liquid phase, and balance the distribution of containments; therefore, the inventive device can be used to simulate the containments in water condition in multi-phase system.
Owner:JILIN UNIV
Adsorption materials and methods for treating contaminants
ActiveCN111604033ALow usable surface areaHave environmental benefitsOther chemical processesWater contaminantsFiberMicroorganism
The invention provides an adsorbent material and method for treating contaminants. The adsorbent material is made to contact with asphaltene to adsorb one or more contaminants. For example, the asphaltene can be used to treat or repair contaminations including water and soil. Asphaltene in the form of particles or fibers is also provided for adsorbing substances such as organic contaminants from water or soil. Thus, a method for biochemically degrading pollutants by combining the asphaltene and microorganisms is realized. The present invention provides an adsorbent material for removing contaminants from contaminants. The adsorbent material comprises asphaltene. A whole process is green and environment-friendly; and the adsorbent material and method have a good application prospect.
Owner:威尔资源有限公司
Purification device and purification method for removing impurities in oil liquids
Owner:南京海益思生物科技有限公司
Method and device for comprehensively purifying wastewater containing heavy metal ions and organics
ActiveCN104445790ALow costReduce governance costsSolid waste managementMultistage water/sewage treatmentElectrolysisMagnetization
The invention belongs to a method and a device for comprehensively purifying wastewater containing heavy metal ions and organics. The method comprises the following steps: blending and mixing different types of mud-containing sewage in a homogenization tank according to different chemical indexes and measured data of the mud-containing sewage in all wastewater recycle pools, so that the chemical indexes of the mud-containing sewage are changed, the water amount is uniform and floccules are formed, or pollutants in the water are precipitated. A mechanical purifying device comprises a base, a mud sewage magnetization tank, an electrolyzing and magnetizing machine, a medicine blending, flocculating and feeding tank and a mud-water separator. The method and the device disclosed by the invention can be used for comprehensively purifying industrial wastewater containing pollutants such as heavy metal ions, suspended solids and organics, and has the advantages that purifying equipment construction cost is low, the treatment cost is low and good energy conservation and environmental pollution effect and good purification effect are achieved.
Owner:北京盛世缘水务工程有限公司
Method for treating wastewater after contaminated soil remediation
InactiveCN111689615AAvoid secondary pollutionProtect healthSludge treatmentWater contaminantsActivated carbon filtrationSoil remediation
The invention discloses a method for treating wastewater after contaminated soil remediation. The comprises the following steps: collecting wastewater generated in a contaminated slag block flushing stage and a tail gas treatment stage into an adjusting tank, and conveying the wastewater into a primary sedimentation tank by the adjusting tank through a lifting pump to remove part of organic matters and SS in the wastewater; after passing through the primary sedimentation tank, the wastewater is self-retained to the chemical oxidation reactor by gravity, and after passing through the chemical oxidizer, most organic matters in the wastewater are removed by oxidation; the wastewater is retained by gravity, and a coagulant and a flocculant are added after the wastewater enters a secondary sedimentation tank so that organic matters in the wastewater are further removed; effluent of the secondary sedimentation tank flows into an intermediate water tank, the water is lifted to a quartz sand filter and an activated carbon filter through a lifting pump, pollutants in the wastewater are further filtered and adsorbed, and the treated wastewater is recycled according to site requirements; according to the method, wastewater generated in the contaminated soil remediation process is effectively treated, and secondary pollution of soil is prevented; human health is guaranteed, and normal production and construction activities are guaranteed.
Owner:广东省建筑工程监理有限公司
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