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61 results about "Source reduction" patented technology
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Source reduction is activities designed to reduce the volume, mass, or toxicity of products throughout the life cycle. It includes the design and manufacture, use, and disposal of products with minimum toxic content, minimum volume of material, and/or a longer useful life.
Method for treating agricultural non-point source pollution in hilly areas
The invention provides a systematic method for treating agricultural non-point source pollution in hilly areas. According to the systematic method, hilly uplands are reclaimed as counter-slope terrace lands, terrace lands per line are kept at equal height, and different lines of terrace lands are parallel mutually and are perpendicular to the inclination direction of upslope lands. The systematic method includes source reduction, runoff interception, process control and nutrient utilization, wherein source reduction refers to substitution for and reduction of chemical pesticides and chemical fertilizers; runoff interception is implemented by planting hedgerow on the external slope surfaces of the counter-slope terrace lands and planting land cover plants on the slope surfaces, dorsal furrows and terrace ridges; in process control, flood intercepting trenches, longitudinal drainage ditches and the dorsal furrows are formed and grit chambers, water-collecting wells and primary rainwater collecting devices are arranged to form a network; nutrient utilization is implemented by a pretreatment unit and a main treatment unit. The systematic method for treating the agricultural non-point source pollution in the hilly areas has the advantages that onsite terrain conditions are fully utilized, and corresponding ecological control and treatment methods are adopted in different forming phases of runoff and pollution, so that runoff nutrient cycling utilization efficiency is improved and production and discharge of the non-point source pollution are reduced.
Owner:JIANGXI ACADEMY OF ENVIRONMENTAL PROTECTION SCI
Method and apparatus for source sludge reduction based on microwave sludge pretreatment
The invention belongs to the field of solid waste treatment and resource recycle and reuse, relates to a technology for excess sludge reduction, and particularly relates to a method and an apparatus for source sludge reduction based on microwave sludge pretreatment. The method provided by the invention comprises the steps of adjusting a pH value of a water-sludge mixed solution obtained by concentrating the excess active sludge to 2.5-12; efficiently cracking the excess active sludge through microwaves under normal pressure opening conditions to increase bio-availability of the excess active sludge; and then reflowing the sludge obtained by the microwave sludge pretreatment to an active sludge tank to realize source reduction of the sludge. The apparatus provided by the invention mainly comprises a heat exchanger, a microwave and a PLC control system. The method is simple, short in process flow and high in efficiency, can realize the source sludge reduction. The apparatus is low in investment and is suitable for the pretreatment of the excess sludge of sewage treatment works in small and medium-sized cities.
Owner:RES CENT FOR ECO ENVIRONMENTAL SCI THE CHINESE ACAD OF SCI
Method for sludge reduction by using compound microbial preparation
InactiveCN105645710AImprove performanceHigh activityBiological sludge treatmentSludgeMicrobiologic agent
The invention discloses a method for sludge reduction by using a compound microbial preparation; the compound microbial preparation with the initial concentration of 0.01-0.02% of the processing capacity of a biochemical pond is added in the biochemical pond. The method has the beneficial effects that the compound microbial preparation is directly added in the biochemical pond, sludge source reduction is performed by microorganisms, the microbial characteristics of high efficiency, low consumption, multiple functions and self reproduction are fully played, the processing effect is improved, the cost is lower, and sludge effective reduction can be realized.
Owner:LIAONING HUIYUAN BIOLOGICAL ENVIRONMENTAL PROTECTION TECH CO LTD
In-situ reducing device of initial rainwater pollutants of urban landscape river
InactiveCN101734804AReduce inputReduce pollutionBiological water/sewage treatmentStormwater pollutionWater quality
The invention relates to an in-situ reducing device of initial rainwater pollutants of urban landscape river. A conventional rainwater port is communicated with an overflow distributing well which is communicated with a rainwater retaining chamber through a water pipe and is provided with an adjustable overflow weir, and suspended organism filling balls are placed in the rainwater retaining chamber. The invention overcomes the defects of reconstruction of urban road surfaces, huge project cost, low possibility of general implementation, limitation of actual spaces of a river way and a bankside on constructing a large-capacity storage pond, processing requirement of a sewage processing plant after raining, large project investment and the like existing in two kinds of methods of source reduction, in-place processing and collection and storage processing. The invention effectively retains granular organic matter at the initial period of raining, reduces the input quantity of the rainwater for the river, and can remove granular organic matter of more than 70% and biologically degrade so as to lower the pollution degree of the initial rainwater on the water quality and the ecology of the urban landscape river. The invention has the advantages of simple structure, reliable effect and convenient maintenance.
Owner:YANGZHOU UNIV
Sewage treatment assessment method and device guided by tracing analysis of particular pollutants
InactiveCN107944601AQuick identificationRealize the whole process traceabilityWater treatment parameter controlGeneral water supply conservationDegradation pathwayWater quality
The invention provides a sewage treatment assessment method and device guided by tracing analysis of particular pollutants. The method comprises the steps that assessment is performed according to operation efficiency of all process units of a sewage treatment plant; sampling and preprocessing are performed according to inflow water and outflow water of all the process units; sampling analysis detection is performed on water quality at the tail end of the process flow of the sewage treatment plant, so that the particular pollutants are clarified; a particular pollutant fingerprint graph library is established; tracing analysis and degradation pathway analysis are performed on the particular pollutants, and key process units and key factors influencing removal efficiency of the particular pollutants are judged; and optimization is performed according to the key process units and the key factors, so that optimization and assessment of the whole process flow are realized. Through the sewage treatment assessment method and device, key pollution factors restricting efficiency improvement in the sewage treatment process can be accurately positioned, degradation efficiency changes of various pollutants along the sewage treatment flow are determined, process operation optimization measures and source reduction and control measures are proposed pertinently, and therefore the timelinessand effectiveness of sewage treatment system assessment are improved.
Owner:BC P INC CHINA NAT PETROLEUM CORP +1
Classification ball household garbage treatment system and method
InactiveCN106890843ACultivate the habit of sortingIncrease in sizeSolid waste disposalTransportation and packagingEngineeringWaste treatment
The invention discloses a classification ball household garbage treatment system and a method. The system comprises classification ball kitchen waste treatment equipment, classification ball intelligent packing matter treatment equipment, classification ball intelligent transfer station equipment, a classification ball cloud platform and classification ball terminal sorting equipment; at such sources as families, hotels and rural areas, organic matters, papers and plastic garbage are crushed, compressed and packed in vacuum as garbage balls with different sizes; a terminal mechanically sorts the garbage balls according to the sizes; the classification ball intelligent transfer station equipment, the classification ball cloud platform and garbage throwing persons interact relying on the information technology; the throwing persons can gain laurels, benefits and rewards; and various information is precipitated as big data for multi-directional application. The classification ball household garbage treatment system and method realize cleanness and tidiness of the workflow of collection, transportation, separation and storage in the household garbage treatment, realize the source classification and the source reduction, prevent the process pollution, cultivate the garbage classification habits, and can create huge social value and commercial value.
Owner:北京水洁技术有限公司
Distributed rural domestic waste recycling device and application thereof
ActiveCN104450501ASimple processEasy to operateBioreactor/fermenter combinationsBiological substance pretreatmentsTreatment pondClean energy
The invention discloses a distributed rural domestic waste recycling device and an application thereof. The device comprises a waste pretreatment system, a sewage anaerobic fermentation tank and a sewage secondary treatment tank, wherein the waste pretreatment system comprises a household garbage can, a stirring system, an organic garbage decomposition tank and an inorganic garbage storage tank. Compared with the prior art, the distributed rural domestic waste recycling device and the application thereof have the characteristics of wide adaptation to fermentation raw materials, less one-time investment, simplicity and convenience in operation, low operation and management cost, capability of recycling part of clean energy resources, and the like, so that the source reduction of the household garbage is realized, the household garbage reduction rate is over 40%, the collection and transportation cost of the household garbage is greatly lowered, the on-the-spot disposal and the reclamation of the domestic sewage are realized, too many pipelines are not needed to be laid, the needs of distributed rural domestic waste treatment, low investment and low maintenance cost are met, and the popularization and utilization value is very good.
Owner:JIANGSU ACADEMY OF AGRICULTURAL SCIENCES
Copper-based organic solid waste recycling, reduction and harmless treatment device and treatment method
PendingCN111676373AAdaptableEasy to adjustProcess efficiency improvementReduction treatmentEmission standard
The invention discloses a copper-based organic solid waste recycling, reduction and harmless treatment device and a treatment method. The raw material adaptability and furnace condition adjustment capability of a top-side composite blowing molten pool smelting furnace are stronger, and the capability of an oxygen-enriched concentration increasing bed is improved; a top-side composite blowing molten pool smelting furnace-electric furnace double-furnace operation and soot valuable metal recycling technology is adopted to improve the copper and precious metal recovery rate and realize resource treatment of copper-based organic solid waste; and a top-side composite blowing molten pool smelting technology and a two-combustion-chamber flue gas combustion control technology are adopted for linkage control, self-heating smelting control, dioxin source reduction control and the low ash yield are realized, and reduction treatment of copper-based organic solid waste is realized. Secondary pollution is avoided, the emission standard of dioxin and other components in flue gas is high, a small amount of generated soot containing high zinc and lead is periodically opened, and the harmless treatment of copper-based organic solid waste is realized.
Owner:中节能(汕头)再生资源技术有限公司
Whole-flow multi-barrier control system and method for aldehyde halide disinfection byproducts in drinking water
PendingCN110156142AWater treatment parameter controlWater/sewage treatment by irradiationChlorine dioxideDisinfection by-product
The invention belongs to the technical field of disinfection of drinking water and relates to a whole-flow multi-barrier control system and method for aldehyde halide disinfection byproducts. The method comprises main contents as follows: (1) the risk grades of the disinfection byproducts are judged according to a raw-water water quality risk early warning method; (2) a single technology or a combination of a plurality of technologies in methods including source reduction, generation inhibition, removal after generation and the like is adopted against to different risk grades; (3) when above treatment measures are adopted, the risks of the aldehyde halide disinfection byproducts are still uncontrollable and the generation of the aldehyde halide disinfection byproducts can be inhibited by adopting an ultraviolet or chlorine dioxide disinfection manner; and (4) a sand filter tank can be modified into a carbon sand filter tank or an ozone-biological activated carbon (O3-BAC) deep treatment technology is built with respect to water plants which keep the risks of the aldehyde halide disinfection byproducts high for long time, so as to finally eliminate the risks.
Owner:SHENZHEN WATER GRP CO LTD
Magnetic carrier immobilized microorganism live bacteria preparation and preparation method and application thereof
ActiveCN104843870ARealize source reductionIncrease vitalityBiological water/sewage treatmentActivated sludgeTherapeutic effect
The invention discloses a magnetic carrier immobilized microorganism live bacteria preparation and a preparation method and application thereof. The magnetic carrier immobilized microorganism live bacteria preparation comprises a magnetic carrier and biological live bacteria immobilized on the magnetic carrier. The biological live bacteria is Acinetobacter-calcoacetcus CGMCC 6820, candida utilis (Candida sp.) CGMCC 2.1495 and bacillus amyloliquefaciens (Bacillus sp.) CICC 21290. The magnetic carrier immobilized microorganism live bacteria preparation is applied to the activated sludge method or biofilm method sewage treatment process to carry out sludge in-situ decrement; the magnetic carrier immobilized microorganism live bacteria preparation is added to the sewage for treatment, so that under the condition of improving the treatment effect of a biochemical system, sludge yield of the system is reduced, and source reduction of the residual sludge is reduced. Through intensified conditioning of the live bacteria preparation, effluent COD, NH3-N, TP, TN and SS concentrations are reduced by more than 10% than original effluent, and unit COD mud production amount is reduced by more than 30%.
Owner:ENVIRONMENTAL SCI RES & DESIGN INST OF ZHEJIANG PROVINCE
Source reduction complete technology method for heavy metal water pollutants in zinc electrolytic process
ActiveCN105132957ARealize source controlLess quantityPhotography auxillary processesElectrolysis componentsMaterials scienceMethods removal
The invention relates to a source reduction complete technology method for heavy metal water pollutants in a zinc electrolytic process. The method comprises three cleaner production technologies of liquid phase source reduction, solid phase source reduction and cleaning wastewater total quantity reduction of heavy metal wastewater of an electrolytic plant, and five key apparatus technologies, so that a complete technology method which integrates cell leaving cathode plate in-situ carrying liquid brushing and collection, intelligent zinc sulfate identification and dry method removal, efficient needle spray cleaning, combined plate stripping, intelligent dirty plate identification and sorting, flexible deformation plate identification and sorting, shaping, polishing and high-precision cell entrance is realized. According to a cleaner production key core technology which is developed by a cleaner production path of source control, process reduction and cyclic utilization, and a high-tech practical apparatus technology which is matched with the core technology, over 85% of cell leaving cathode plate carrying liquid is reduced; over 99% of zinc sulfate crystal substances are reduced; over 82% of cleaning wastewater yield is reduced; the complete cycle utilization of the zinc sulfate crystal substances and zinc-containing cleaning water is realized; and no heavy metal wastewater effluent processing is realized.
Owner:CHINESE RES ACAD OF ENVIRONMENTAL SCI
Advanced wastewater treatment method and system capable of realizing sludge source reduction
InactiveCN111422954AReduce outputReduce dosageSpecific water treatment objectivesWater contaminantsChemical reactionSludge
The invention discloses an advanced wastewater treatment method and system capable of realizing sludge source reduction. According to the method, wastewater firstly enters a first acid-base regulatingtank, and a sulfuric acid solution is added to regulate a pH value to 3-5; then the wastewater enters an electro-Fenton reactor for Fenton advanced oxidation, and an aeration device aerates a cathode; and after an electro-Fenton reaction is finished, effluent is allowed to enter a second acid-base regulating tank, and a sodium hydroxide solution is added to regulate the pH value to 7-9; and thenthe effluent is enabled to enter an electrochemical reaction unit for treatment, so advanced treatment of the wastewater is finished. The method is wide in application range and can be suitable for advanced treatment of different types of sewage.
Owner:CHINA UNITED NORTHWEST INST FOR ENG DESIGN & RES
Intelligent source reduction complete technology method for high-lead anode mud heavy metal pollutants
ActiveCN110241442AReduce corrosionReduce productionProcess efficiency improvementElectrodesParticulatesManganese
The invention relates to an intelligent source reduction complete technology method for high-lead anode mud heavy metal pollutants in the industry of hydrometallurgy. Three technologies including real-time online monitoring, film preparing optimal regulating and mud removing intelligent identifying are integrated into a whole. The intelligent source reduction complete technology method for the high-lead anode mud heavy metal pollutants comprises the steps that after a lead-based anode new plate or a film-broken old plate is subjected to surface pretreatment to meet the requirement for surface roughness, key parameters such as the concentration, the temperature and the volume of manganese, lead, acids, suspended particulate matters and other matters in an anode film preparing system are monitored online in real time; regulating technology parameter combination is optimized on the basis of real-time detected data through the film preparing optimal regulating technology, and a compact film layer structure and the best lead sealing effect are obtained; and the purpose of removing mud without damaging the film is achieved according to a film-mud layered structure through the mud removing intelligent identifying technology, and the film-broken plate can be intelligently identified and return to the film preparing system again. According to the intelligent source reduction complete technology method for the high-lead anode mud heavy metal pollutants, integrated intelligent control over real-time monitoring, film preparing regulating and damage-free mud removing is achieved, corrosion pollution of lead is inhibited from the source, and the generation amount of lead-containing wastewater and high-lead anode mud is significantly decreased.
Owner:CHINESE RES ACAD OF ENVIRONMENTAL SCI
Method for prevention and control of non-point source pollution and cyclic utilization of resources of tea garden and system thereof
ActiveCN103112954AEffective absorptionRealize the purification of pollutionSoil drainageEarth-fill damsLongitudinal furrowResource utilization
The invention discloses a method for prevention and control of non-point source pollution and cyclic utilization of resources of a tea garden. A system mainly consists of a source reduction system, a pollution process reduction system, a pollution end control system and a resource cyclic utilization system, wherein the source reduction system is used for reducing pollution of the tea garden and is provided with irrigation canals and ditches, and base fertilizers are used in the source reduction system; the pollution process reduction system is provided with trunk canals and interception permeable dikes; the pollution end control system is provided with buffer regions and ecological regions; and in the resource cyclic utilization system, plants in the ecological regions are raw materials for preparing the base fertilizers. According to the method and the system, by configuring longitudinal furrows and transverse furrows in the tea garden at a sloping field and preparing and using the base fertilizers, the pollution is reduced at source; the trunk canals are provided with the interception permeable dikes to intercept pollution, the buffer regions and the ecological regions are arranged, and the pollution is controlled at the end; and wastes in the tea garden are subjected to resource utilization to prepare the base fertilizers, so that aiming at slope runoff of low-pollution water in the tea garden, a non-point source prevention and control method for source reduction, process reduction, end control and cyclic utilization for the tea garden is formed by utilizing a resource cyclic utilization manner.
Owner:江苏省环境工程技术有限公司
Sludge reduction method of urban wastewater treatment process
InactiveCN101767909AAchieving the goal of reducingLow cost of infrastructure renovationMultistage water/sewage treatmentSustainable biological treatmentTechnological systemWater quality
The invention discloses a sludge reduction method of the urban wastewater treatment process. The method comprises the following steps: introducing a sludge concentration anaerobic starvation pond in the existing AB method urban sewage treatment process so that the original return sludge can enter the sludge concentration anaerobic starvation pond, and controlling the parameters of the sludge concentration anaerobic starvation pond to ensure that the residence time of the return sludge is 12-24 hours, the stirring rate is 30-300 seconds per hour and the total sludge amount in the sludge concentration anaerobic starvation pond accounts for 30%-60% of the total sludge weight in the entire AB technological system, thus the sludge reduction of the AB method urban sewage treatment process can be realized. On the basis that the invention does not change the operational parameters of the AB method urban sewage treatment plant in normal operation, the excess sludge production is reduced by over 35% compared with that of the original AB method so that the source reduction of sludge is realized, and the sewage treatment water quality and the sewage treatment cost are not changed.
Owner:SUN YAT SEN UNIV
Method for testing transformer on-load tap changer
ActiveCN106842008AReduce distractionsImprove accuracyResistance/reactance/impedenceCircuit interrupters testingEngineeringTap changer
The invention discloses a method for testing a transformer on-load tap changer, and relates to the technical field of power supply maintenance. An on-load tap changer tester is connected with a tested transformer on-load tap changer in a tested mode to form a test loop, a direct-current resistance tester is connected with the on-load tap changer tester in parallel, and an error brought by interference in the external auxiliary direct-current source reduction testing process is utilized for improving the waveform acquisition precision. By means of the method, the waveform acquisition effect is better, and on-load tap changer testing is more accurate.
Owner:BAODING TIANWEI GROUP TEBIAN ELECTRIC
Classification type garden waste source reduction equipment
ActiveCN112845499AEasy to wearEfficient screeningTransportation and packagingSolid waste disposalEnvironmental engineeringSuperheated steam
The invention discloses classification type garden waste source reduction equipment. The equipment comprises a box body, a large material feeding port and a small material feeding port are formed in the upper portion of the box body, a primary smashing bin used for filtering and smashing large materials is arranged at the position, below the large material feeding port, of the box body, and a small material screening bin used for filtering impurities in small materials is arranged at the position, below the small material feeding port, of the box body. A secondary smashing bin used for receiving materials discharged by the primary smashing bin and the small material screening bin and smashing the materials again is arranged on the lower portion of the box body, and a steam generating bin used for drying materials in the box body is further arranged in the box body. Through the large material feeding port and the small material feeding port, targeted classification treatment is conducted on garden waste of different sizes, primary smashing is conducted on large materials firstly, and screening is conducted on small materials. The manner of combining drying treatment with two-stage smashing by using superheated steam is adopted, so that thorough smashing of the waste is facilitated, and reduction is more thorough.
Owner:INST OF URBAN AGRI CHINESE ACADEMY OF AGRI SCI +1
Sludge reduction method adopting combination of high-purity pure oxygen and microorganisms for treatment
InactiveCN111995204AGood removal effectIdeal subtractive effectBiological sludge treatmentMicroorganismSludge
The invention provides a sludge reduction method adopting a combination of high-purity pure oxygen and microorganisms for treatment. The method comprises the following steps: completely dissolving pure oxygen with an oxygen concentration of more than 99% into a sludge-wastewater mixed solution in a molecular form via pump conveying equipment by adopting a high-pressure capillary technology so as to realize bubble-free conveying and generate high-flow super-dissolved oxygen SSO2; and under the action of ultra-dissolved oxygen, degrading organic substances in the sludge-wastewater mixed solutionby utilizing aerobic microorganisms, wherein microorganism sources comprise microorganisms generated by themselves in the sludge-wastewater mixed solution and added microorganism strains. According to the method disclosed by the invention, by adopting a combined a technology of high-purity pure oxygen and microorganisms, an organic matrix in the sludge is reduced and the residual sludge yield ofa biochemical system is greatly reduced, so sludge reduction is truly realized; and the method overcomes the problems of low sludge reduction efficiency, high operation cost and high investment, trulyrealizes the source reduction of the sludge and also overcomes the technical problem of secondary pollution in the process of sludge reduction.
Owner:北京赛富威环境工程技术有限公司
Method for reducing dosage of extractant from source of acid extraction system and lowering content of organic matters in aqueous phase
ActiveCN109502676AReduce lossesReduce secondary pollutionLiquid solutions solvent extractionWater/sewage treatment by extractionAlcoholKetone solvents
The invention provides a method for reducing the dosage of an extractant from the source of an acid extraction system and lowering the content of organic matters in an aqueous phase. The method comprises the following steps: adding a complex phase interface modifier into an acid extraction system of a solution to be treated; standing for separation to obtain extraction liquid and raffinate, wherein the complex phase interface modifier is prepared from the following components in parts by volume: 70 to 100 parts of alcohol solvent, 0 to 20 parts of ketone solvent, and 0 to 10 parts of ester solvent. By adopting the method, the problem of severe influence on equipment and products since the concentration of organic matters in wastewater is too high due to the dissolution or drift loss of theextractant in the extraction process of the acid extraction system can be solved, the loss of the extractant in the wastewater is reduced directly by 70 percent or more, the source reduction rate ofthe extractant is improved greatly, the content of the organic matters in the aqueous phase is lowered greatly, secondary pollution is lowered, the load on extraction equipment is lowered, and the product quality is improved.
Owner:INST OF PROCESS ENG CHINESE ACAD OF SCI
Lake nutrient source control technique and performance evaluation method
InactiveCN102495975AAchieve integrationSpecial data processing applicationsSystem dynamics modelNitrogen
The invention discloses a lake nutrient source control technique and a performance evaluation method. The performance evaluation method comprises the following steps: building a system dynamics model coupling a river basin resource-environment-an economic system, designing a river basin developing sight scheme, building an environmental social economic accounting matrix (ESAM) containing nitrogen and phosphorus nutrient accounts in the river basin and a unit nitrogen and phosphorus discharge performance evaluation system, namely an environmental price system, adjusting industrial structures according to the system, introducing a computable general equilibrium (CGE) model, simulating influence comprehensive analysis sight input data and model results of economy and environment caused by industrial restructuring, introducing a data envelopment analysis method, and determining optimal nitrogen and phosphorus reduction and economic-coordinated development schemes. The technique method provides basis for formulation of lake nutrient source reduction and area economic pattern prioritization schemes, forms an integrated lake nutrient nitrogen and phosphorus reduction technique integration system with goal-process-simulation-decision, achieves lake nutrient source control, and achieves a purpose of structural discharge reduction.
Owner:BEIJING NORMAL UNIVERSITY
Kitchen garbage treatment method with biological deodorization function
InactiveCN113912424AAchieve degradation, deodorization and purificationRealize degradation, deodorization and purificationBio-organic fraction processingFatty/oily/floating substances removal devicesEnvironmental engineeringOrganic fertilizer
The invention discloses a kitchen garbage treatment method with a biological deodorization function, and relates to the technical field of kitchen garbage treatment. The kitchen garbage treatment method comprises a step of crushing and dewatering; a step of wastewater treatment; a step of biochemical treatment, namely a step of adding compound microbial flora and additives into solid-phase kitchen garbage, heating and stirring, performing biochemical treatment and discharging the the solid-phase kitchen waste from a discharge port in the form of granular objects which become a raw material of an organic fertilizer. According to the method, the kitchen garbage after being crushed and dehydrated is subjected to biochemical treatment through heating and biological enzyme stirring, the purposes of source reduction and pollution reduction are achieved, and when the solid-phase kitchen garbage is subjected to biochemical treatment, by adding the biological enzyme, macromolecular organic matters are decomposed into low-molecular organic matters such as sugar, fatty acid and amino acids, so that the compound microbial flora can be rapidly propagated by taking the low-molecular organic matters as nutrients, and the treatment efficiency is improved.
Owner:天津铭铨志远科技有限公司
Household kitchen waste sealing and concentrated transporting device
PendingCN108249076ARealize sealed consolidationReduce moisture contentRefuse receptaclesSlagWaste collection
The invention relates to a household kitchen waste sealing and concentrated transporting device, and belongs to the technical field of waste collection and environment protection. The volume of a sealwaste bin (1) can be changed, so that the household kitchen waste is compressed and sealed, rot and microbe development are reduced, the household kitchen waste is sealed and concentrated transported, cleaning operation and mechanical automation operation are carried out conveniently, the device can replace waste bags and can be recycled, the waste treatment efficiency is improved, and the working environment is improved. A concentrated compressor (2) can be used for rough-cutting, stirring, rolling, compressing and discharging the household kitchen waste at the same time, so that the solid-liquid separation and compression efficiency is high, the effect is good, automatic cleaning can be realized, and slags are prevented from adhering and twisting. According to the household kitchen waste sealing and concentrated transporting device provided by the invention, the household kitchen waste is firstly sorted manually, so that an existing waste concentrated transporting and treating operation flow is optimized, the maximization of source reduction can be realized, waste generated by mistakes can be avoided, a customer can obtain a direct waste treatment benefit, government regulationand public supervision can be enhanced, and the standardization of a waste recycling treatment industry chain is promoted.
Owner:LUDONG UNIVERSITY
Method for denitrifying calcined flue gas of magnesite clinker
InactiveCN112179153AReduce or avoid the occurrence ofAchieve reductionDispersed particle separationCharge treatment typeShaft furnaceCalcination
The invention belongs to the field of calcined flue gas treatment, and relates to a method for denitrifying a calcined flue gas of a magnesite clinker. The method is used for preventing and controlling nitrogen oxide generated in the magnesite clinker calcination process in a manner of integrating source reduction, process control and terminal treatment. The method comprises the steps that a cleanfuel is adopted to replace a non-clean fuel, and generation of fuel type nitrogen oxide is reduced or avoided from the source; a primary calcining fire hole and a secondary calcining fire hole are formed in a shaft furnace to achieve staged combustion of the fuel; a flue gas recirculation technology is adopted, so that the generation amount of the thermal nitrogen oxide in the combustion processis reduced, and nitrogen oxide reduction in the combustion process is achieved; an ammonia spraying window is arranged at a proper position of a preheating section of the shaft furnace, and primary denitration treatment is conducted on the calcined flue gas in the furnace by adopting a selective non-catalytic reduction mode; the calcining fire holes are formed in a proper position of the shaft furnace to ensure a proper preheating and calcining zone height, so that the outlet flue gas temperature meets the selective catalytic reduction denitration temperature, and the terminal treatment of thenitrogen oxide is achieved.
Owner:NORTHEASTERN UNIV
A method for controlling agricultural non-point source pollution in low mountain and hilly areas
Owner:JIANGXI ACADEMY OF ENVIRONMENTAL PROTECTION SCI
Dirty oil dewatering process for refinery and oil field
InactiveCN100506941CAchieve separationDehydration fastOther chemical processesSocial benefitsOil field
The invention relates to a waste oil dehydration process; in particular, it relates to a new ultrasonic treatment process for dehydration of light waste oil and heavy waste oil in a refinery and dehydration recovery of oil field waste oil. The water-containing sewage oil enters the heat settling tank for oil-water separation after passing through the ultrasonic treatment device with a standing wave or traveling wave in the ultrasonic processor, or the water-containing sewage oil enters the heat settling tank with a standing wave or traveling wave ultrasonic device for oil-water separation. This process belongs to the physical demulsification dehydration method, which has strong adaptability to waste oil, is not affected by the properties of oil, and can quickly realize oil-water separation; it can realize oil-water separation in a short time, shorten the heat settling time and increase the final dehydration rate, Low operating costs. The technology is used to recycle the dirty oil, reduce pollution sources, and has good environmental protection and social benefits.
Owner:NANJING TECH UNIV
Mobile compression equipment patrol optimization method based on E2SFCA reachable analysis
ActiveCN114239918AEnhanced source reduction capabilityImprove preprocessing efficiencySustainable waste treatmentForecastingEnvironmental resource managementEnvironmental engineering
The invention discloses a mobile compression equipment patrol optimization method based on E2SFCA reachable analysis, and relates to the crossing field of municipal engineering, environmental engineering, remote sensing technology, mathematical modeling and computer technology. The invention aims to solve the problems that a reasonable patrol route of efficient garbage pretreatment and compression transportation integrated technical equipment cannot be determined at present, so that movable small garbage pretreatment equipment cannot be applied to villages and towns, and the garbage treatment efficiency of the villages and towns is low; and the source reduction demand of a sanitary environment in a village and town scene cannot be met. The method comprises the steps of firstly obtaining household garbage pretreatment demand conditions of a research area; dividing a service area for the garbage transfer facility; acquiring the spatial distance between the residential area and the transfer compression facility; then obtaining compression accessibility according to the demand condition and the spatial distance; and finally, obtaining patrol points according to the compression accessibility so as to obtain a patrol route. The method is used for obtaining the optimal patrol route of the mobile garbage compression equipment.
Owner:HARBIN INST OF TECH
Stainless steel cold rolling sludge recycling method
InactiveCN112499815AEliminate environmental hazardsAchieve source reductionSludge treatmentWater contaminantsSteelmakingSludge cake
The invention relates to the technical field of industrial harmful waste recycling, and discloses a stainless steel cold rolling sludge recycling method which comprises the following steps of: (1) carrying out distinguishing treatment; (2) carrying out mixing treatment; (3) carrying out primary precipitation; (4) obtaining heavy metal sludge; (5) carrying out secondary precipitation; and (6) obtaining calcium salt sludge. According to the stainless steel cold rolling sludge recycling method, through two-stage treatment and segmented recovery, a heavy metal sludge cake and a calcium salt sludgecake are obtained conveniently, the heavy metal sludge cake is mainly composed of hydroxides of heavy metals such as Fe, Cr and Ni, the heavy metal sludge cake can be returned to a metallurgy processand utilized as a steelmaking slag former or sinter or pellet ore and other raw materials after being dried, the calcium salt sludge cake can be used as a cement mineralizer, a building material rawmaterial or a metallurgical auxiliary material, and can also fill up the landfill or be stacked as common industrial waste due to low heavy metal content, and practice shows that after the stainless steel cold rolling pickling wastewater is subjected to segmented treatment, mixed sludge source reduction is realized, and two sections of sludge are easier to comprehensively utilize.
Owner:SHANDONG HONGWANG INDUSTRY CO LTD
Wet waste source reduction reclamation disposal system
ActiveCN108246778AReduce labor intensityNot easy to polluteSolid waste disposalHigh energyEmission standard
The invention discloses a wet waste source reduction reclamation disposal system. The wet waste source reduction reclamation disposal system comprises a pretreatment device, a crusher, a sediment separating device, a centrifugal dewatering device, a facultative tank, a multi-disk screw press, an oil-water separating box, an anaerobic and aerobic treatment tank, an organic residue sterilizing treatment device, a high-energy ion purifier and a PLC control system. The PLC control system is in communication with the pretreatment device, the crusher, the sediment separating device, the centrifugaldewatering device, the multi-disk screw press and the organic residue sterilizing treatment device. According to the wet waste source reduction reclamation disposal system, the labor intensity of operators is reduced, treated sewage can reach the discharge standard, environment protection is advantageous, and a clean, hygienic and civilized living environment can be provided for people.
Owner:SHANGHAI HENGXIA ENVIRONMENTAL PROTECTION EQUIP
Garbage classification and treatment method
InactiveCN112191653AEasy to classifyReduce processing difficultyWaste processingSolid waste disposalRenewable resourceRefuse Disposals
The invention discloses a garbage classification and treatment method. The garbage classification and treatment method at least comprises the steps of front-end treatment, transfer center treatment, sorting center sorting, renewable resource center utilization and tail-end treatment. In the front-end treatment, a garbage classification area is divided into a first area and a second area, a first garbage classification method is executed in the first area, a second garbage classification method is executed in the second area, wherein the first garbage classification method divides garbage intodry garbage, wet garbage and harmful garbage, and the second garbage classification method divides the garbage into recyclable garbage, other garbage, preprandial garbage, postprandial garbage and harmful garbage. According to the garbage classification and treatment method, the garbage treatment concept of ''separating the garbage for use and separating the garbage for necessary use'' is maintained, and the classification of maximum utilization of the garbage is realized; and meanwhile, because of the classification mode, the acceptability of common people is higher, the garbage source reduction and garbage recycling and harmlessness are realized.
Owner:EVERBRIGHT ENVIRONMENTAL TECH CHINA CO LTD
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