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70results about How to "Effective solid-liquid separation" patented technology

Preparation method of magnetized silicon dioxide aerogel

The invention belongs to the field of preparation of water treatment materials, and in particular relates to a preparation method of magnetized silicon dioxide aero-gel. The preparation method comprises the following steps of: with water glass as a silica source, adding nano-grade ferroferric oxide dispersed liquid and a drying control chemical additive to obtain the magnetized silicon dioxide aerogel at ordinary pressure and drying conditions through a sol-gel method and surface modification. The magnetized silicon dioxide aerogel is a nano-grade porous material, the average pore size of each pore is 3-5nm; the magnetized silicon dioxide aerogel has a saturated magnetization intensity of 0.4-0.8emu.g-1. The preparation method has low cost; and the magnetized silicon dioxide aerogel prepared by adopting the preparation method disclosed by the invention has magnetism, can realize the solid-liquid separation effectively under the action of an external magnetic field, and is suitable for mass production.
Owner:RES CENT FOR ECO ENVIRONMENTAL SCI THE CHINESE ACAD OF SCI

Integrated water purification processing method and device of ultrafiltration membrane coagulation/bioreactor

InactiveCN101219847AImprove water qualityReduce engineering cost and operating costUltrafiltrationMultistage water/sewage treatmentUltrafiltrationChemistry
The invention discloses an integrated water treatment method of ultrafiltration membrane coagulation / biological reactor and a device thereof. The invention, the coagulation, and the biological reaction is combined and completed in a same reaction cell. Raw water enters the ultrafiltration membrane coagulation / biological reactor; activated sludge microorganism in the reactor biologically degrades ammonia nitrogen and organic matters with low molecular weight in the water; a coagulant adding system adds coagulant and adsorbent in the reactor to remove the organic matters with high molecular weight and phosphorus; at last, the immersion ultrafiltration membrane components arranged in the reactor carries out the solid-liquid separation to prepare drinking water with excellent quality. A perforated aeration pipe is arranged on the lower part of the reactor to be connected with a sludge discharge pip to discharge the residual sludge in the reactor regularly. In order to ensure the membrane flux, a membrane reverse washing system carries out the reverse washing for the ultrafiltration membrane components regularly. The invention combines the coagulation effect and the biological effect with the ultrafiltration physical interception effect so that the manufacturing cost and the operation cost are remarkably reduced, while the invention is a novel advanced purification process of the drinking water with the advantages of high efficiency, energy saving, convenient maintenance and management.
Owner:HARBIN INST OF TECH

Rubbish recycling treatment device

The invention discloses a rubbish recycling treatment device. The rubbish recycling treatment device comprises a shell body, the midpoint position of the top of the shell body is provided with a material feeding mouth, the positions, corresponding to the material feeding mouth, of the top of the shell body are fixedly connected with material feeding baffles, and the positions, located on the leftside and the right side of the material feeding mouth, at the top of the inner wall of the shell body are both fixedly connected with arc-shaped concave blocks. According to the rubbish recycling treatment device, by means of mutual coordination of the arc-shaped concave blocks, smashing teeth, a smashing motor, a smashing rotating shaft, a smashing gear, a squeezing box, a triangular block, firstfilter plates, vibrators, ultraviolet sterilizing lamps, cutting motors, cutting rotating shafts, cutting blades, a threaded rod, a driven bevel gear, a forward and reverse motor, a forward and reverse rotating shaft, a driving bevel gear, a threaded sleeve, a first stretching and contracting rod, a fixed plate, a pulverizing wheel and a supporting spring, the function that the rubbish treatmenteffect is good is achieved, solid-liquid separation can be effectively performed on rubbish, the situation that the rubbish breeds germs and threatens health of staff is avoided, and subsequent rubbish incineration operations are greatly facilitated.
Owner:郭山河

Drinking water deeply purifying method and device

The invention discloses an advanced purification method for drinking water and a device thereof. The advanced purification process for drinking water is explored aiming at generally existing micro-polluted source water and the process combines a biological activated carbon filter and an ultrafiltration membrane biological reactor to purify the drinking water in an advanced way. After the raw water being treated enters the biological activated filter first, the particulate matters in the water being partly intercepted; pollutants like organic matters and ammonia nitrogen and so on are partly degraded and the water quality is purified to some degree; load of the ultrafiltration membrane biological reactor is reduced; the water in the filter is discharged into the ultrafiltration membrane biological reactor; the activated sludge in the reactor biologically treats the water from the filter and the pollutants ammonia nitrogen and the organic matters in the water are degraded again; at last, the water after two-level biodegradation is drawn form ultrafiltration membrane component by a draw-suck pump and the remarkable effect of removal of particulate matters as well as interception of two insects, daphnia, red worms, alga, bacteria and even virus of the ultrafiltration membrane can be brought into play.Therefore, the safe and clean drinking water with excellent quality can be prepared.
Owner:东营工大水环境技术有限公司

Preparation method of magnetic mesoporous silicon dioxide adsorbent for removing aflatoxin in edible oil

The invention relates to a preparation method of a magnetic mesoporous silicon dioxide adsorbent for removing aflatoxin in edible oil. The preparation method specifically comprises the following steps: (1) dissolving rice hull ash and an alkali solid to obtain a rice hull ash alkaline solution; (2) after adding ferric salt, quickly adding stronger ammonia water and heating and stirring; filtering and separating, washing, drying and grinding precipitate; (3) putting magnetic microparticles and a cationic surface active agent in a beaker, dropwise adding an adjuvant, carrying out ultrasonic dispersion, stirring, adding the rice hull ash alkaline solution to adjust the pH value, maintaining the temperature, and further stirring; and (4) after reaction, aging, carrying out centrifugal separation on the precipitate, washing the precipitate by deionized water for several times, and after drying, carbonizing and calcining the precipitate, removing the cationic surface active agent to obtain a product which is the magnetic mesoporous silicon dioxide adsorbent. The preparation method provided by the invention is simple in preparation process and mild in condition, raw materials are low in cost, and the obtained magnetic mesoporous silicon dioxide adsorbent is high in specific surface area, can be used for effectively removing aflatoxin B1 in edible oil, is easily separated from food materials, and can be repeatedly used.
Owner:JIANGNAN UNIV

Kitchen waste garbage can with solid and liquid separation function

The invention discloses a kitchen waste garbage can with the solid and liquid separation function. The kitchen waste garbage can with the solid and liquid separation function comprises an outer can body and an inner can body. With the kitchen waste garbage can with the solid and liquid separation function, solid and liquid separation can be effectively carried out on kitchen waste, garbage treatment later is facilitated, and the work intensity of operators is reduced; because a discharging door and a sewage discharging pipe are arranged, solid garbage and liquid garbage can be collected separately, and the process of collection is quick and saving in labor; because a sealing plate and a cover body are used in cooperation, peculiar smells overflowing from a garbage can in the garbage throwing process are greatly reduced, and it is avoided that discomfort is caused to people; because a movable rack and a rotating plate are arranged, a throwing opening can be opened or closed very conveniently and quickly, and the user experience is improved.
Owner:SHENZHEN SHENGXIANG INTPROP CO LTD

Rubbish sorting device

The invention relates to a rubbish sorting device which comprises a storage hopper, a feeding conveyer, a bag-breaking machine and a separating device which are connected with each other in turn, wherein the separating device comprises a solid-liquid separating device and a sorting separating device; the solid-liquid separating device comprises a solid-liquid separating motor, a driving gear set, a rotary screen and a liquid collecting hopper; the rotary screen is driven by the solid-liquid separating motor through the driving gear set, and the solid-liquid separating motor is under a rotating state along the axial direction of the rotary screen; more than one spiral flow-guiding plate which extends from the head end to the tail end of the rotary screen is arranged on an inner wall of the rotary screen; the liquid collecting hopper is arranged under the rotary screen corresponding to the rotary screen; the sorting separating device comprises a heavy mass collecting hopper, a light mass collecting hopper and a sorting fan; the heavy mass collecting hopper is arranged under the tail end of the rotary screen and is under the state of collecting rubbish sent out of the tail end of the rotary screen; the light mass collecting hopper is arranged for collecting light rubbish blown by the sorting fan from the rubbish sent out of the tail end of the rotary screen corresponding to an air-feeding direction of the sorting fan.
Owner:JIANGSU YUNJIANG BIOLOGICAL ENERGY TECH

Multistage extraction unit for animal and plant raw materials, and method and application thereof

The invention relates to a multistage extraction unit for animal and plant raw materials, and a method and application thereof, belonging to the technical field of animal and plant extraction. The extraction unit comprises an extraction tank (1), a filtration membrane filter (2), a pulverizer (3) and a concentrated solution membrane separation device, wherein the extraction tank (1) is connected with the pulverizer (3) through a raw material delivery pipe (101), and connected with a feed port of the filtration membrane filter (2) through a first pump (4) via a pipeline; a filtrate outlet of the microfiltration membrane filter (2) is connected with a filtrate output pipe (201); and a concentrated solution outlet of the filtration membrane filter (2) is respectively connected with the extraction tank (1) through a concentrated solution return pipe (202) and connected with the concentrated solution membrane separation device through a concentrated solution delivery pipe (203). The extraction unit can pulverize the raw materials into fine powder and perform membrane separation extraction, has the advantages of high extraction efficiency and high yield, and is capable of obviously enhancing the concentration of the obtained filtrate, reducing the solvent consumption and lowering the production cost.
Owner:王芹

Anaerobic digestion processing method and apparatus in biogas production process

InactiveCN101434450ASimple processSolve the problem of neglecting the otherBio-organic fraction processingClimate change adaptationSlagNew energy
The invention relates to a process and a device for methane anaerobic digestion treatment, which consists of two parts: anaerobic fermentation gas production, and slag discharge, solid-liquid separation and collection thereof; wherein, the anaerobic fermentation gas production process comprises feed manner, process arrangement, the closure reflux of strains, prolonged fermentation gas production time of organic solids, and the like; the processes of the slag discharge, solid-liquid separation and collection thereof comprises low point fall slag discharge, hydraulic agitation slag discharge, strengthened solid-liquid separation, circulation sedimentation separation, organic filtering material filtering and separation, filtering and draining combined separation, and the like; and the device comprises a honeycomb type anaerobic pool, a circular regulation pool and a circular sedimentation pool thereof. The process and the device have an unique feed manner, an effective slag discharge way, full and strengthened solid-liquid separation, and organic solid recycling with high proportion, particularly, fermented gas production materials after the strengthened solid-liquid separation can be guaranteed, meanwhile, organic material recycling with high proportion and water discharge with low concentration can be realized. The process and the device can effectively combine new energy development, organic fertilizer production and the treatment for environment protection; besides, processes are simple and practical, thus being suitable for popularization.
Owner:LESHAN FOZHOU NEW ENERGY DEV

Method for recovering copper, cobalt and nickel from copper and nickel slag

The invention discloses a method for recovering copper, cobalt and nickel from copper and nickel slag. The method comprises the following steps: leaching a soluble substance through ore grinding and powder concentration by using an acid, performing solid-liquid separation to obtain a leaching solution I and leaching slag I; oxidizing soluble metals in the leaching slag I, regulating the pH value, precipitating and separating the iron, and performing solid-liquid separation to obtain a separation solution II and separation slag II; continuously adding the copper and nickel slag into the separation solution II, regulating the pH value so as to ensure that soluble silicon is precipitated in a silicate form, and performing solid-liquid separation to obtain a separation solution III and separation slag III; finally, precipitating the copper, cobalt and nickel in the separation solution III by using sodium dimethyl dithiocarbamate and xanthate, and performing solid-liquid separation to obtain separation slag IV, namely the recovery product. According to the reasonable process design, common chemicals and methods are used, the copper, cobalt and nickel are recovered from the copper and nickel slag, the environment can be prevented from being polluted by waste residues, and rare metals such as copper, cobalt and nickel can be effectively recovered. Moreover, the product process parameters are easily controlled, and novel environmental pollution is avoided.
Owner:斯莱登(北京)化工科技有限公司

Landfill leachate multi-membrane treatment process

The invention discloses a landfill leachate multi-membrane treatment process. Landfill leachate is pumped into an anaerobic tank, an anoxic tank and an aerobic tank in sequence for treatment, functional magnetic ferrite is put into effluent of the aerobic tank, and the effluent enters a sedimentation tank for solid-liquid separation; supernatant obtained from the sedimentation tank enters an immersed membrane reactor for secondary solid-liquid separation; sludge obtained from the sedimentation tank enters a magnetic drum separator for separation, and slurry containing the magnetic ferrite and returned sludge are obtained, wherein the slurry containing the magnetic ferrite flows back to enter the water outlet portion of the aerobic tank, and the returned sludge enters a middle tank; immersed membrane reactor permeate enters a tubular high-intensity magnetic field processor for magnetizing sterilization and then enters a nanofiltration or reverse osmosis system to be treated, and the treated immersed membrane reactor permeate is discharged up to standard; immersed membrane reactor concentrated mixed liquid is mixed with the returned sludge through the middle tank, and the supernatant is pressurized through a water pump and subjected to magnetic activation through a tubular medium-intensity magnetic field processor and then flows back to enter the anoxic tank.
Owner:江苏环保产业技术研究院股份公司

Oxidation-adsorption integral arsenic removal device and method for drinking water

The invention discloses an oxidation-adsorption integral arsenic removal device and method for drinking water, which belong to the field of deep arsenic removal of the drinking water. The device comprises a water inlet control system, a reactor, an ultrafiltration membrane filtration system, an aeration oxidation system, a sludge discharge system and a water outlet control system, wherein the ultrafiltration membrane filtration system is arranged on the middle lower part of the reactor and is connected with the water outlet control system; the sludge discharge system comprises a sludge discharge valve and a sludge discharge pipe; the aeration oxidation system comprises an aeration pipe, an air inlet valve and an air pump; and the water outlet control system is formed by sequentially connecting a water outlet valve, a sucking pump and a water outlet pipe, and is connected with the ultrafiltration membrane filtration system. According to the oxidation-adsorption integral arsenic removal device and method for drinking water, oxidation, adsorption and membrane separation are organically combined to be completed in a same reaction pool, and the advantages that: the engineering application is convenient, the fixed investment is low, the operation cost is low, and deep arsenic removal with the safety of water quality of the drinking water can be ensured, are realized.
Owner:JIANGSU YONGTAI ENVIRONMENTAL PROTECTION TECH

Sewage treatment device based on environmental protection

The invention discloses a sewage treatment device based on environmental protection. The sewage treatment device comprises a casing, wherein a filtering cavity is arranged in the casing; a stirring cavity is arranged in the casing and is positioned at one side of the filtering cavity; a stirring device is arranged in the stirring cavity; a discharging device is arranged on the side wall of one endin the stirring cavity; a bearing groove is formed in the lower end of one side of the casing; the bearing groove is positioned at the lower end of the filtering cavity; a pushing device is arrangedin a moving groove; a first opening is formed in the lower end of the side wall of one end in the filtering cavity; the first opening corresponds to the stirring cavity; a second opening is formed inone side of the bottom in the filtering cavity; the second opening corresponds to the bearing groove. The sewage treatment device has the advantages that the function that impurities in sewage are filtered and cleared is realized; the solid and liquid separation can be effectively performed; the automation degree is high; the manual separation of workers is not needed, so that the sewage treatmentquality is ensured; the treatment efficiency is improved; the normal operation of sewage treatment machinery is ensured.
Owner:JIANGSU INST OF ECONOMIC & TRADE TECH

Method for electrochemical preparation of hydrotalcite for in-situ treatment on strontium-containing radioactive waste liquid in power plant

The invention relates to a method for electrochemical preparation of hydrotalcite for in-situ treatment on a strontium-containing radioactive waste liquid in a power plant. The method comprises the following steps: preparing simulated radioactive wastewater with Sr<2+> as electrolyte, dropping an alkali solution and an acid solution, adjusting the pH value to be 5-11, and carrying out electrolysiswith double power supplies, wherein a direct-current voltage stabilizing power supply with an aluminum piece as an anode and graphite as a cathode is adopted as one group of the power supplies, and apulse power supply with two zinc pieces as an anode and a cathode respectively is adopted as the other group of the power supplies; alternating the anodes and the cathodes through inverse electrodes,carrying out electrolysis synthesis under a constant temperature condition, after the reaction is completed, leaving the electrolyte to stand, filtering, and carrying out solid-liquid separation, soas to complete simulation waste liquid purification treatment. By adopting the method, a great amount of chemicals or absorbents are not needed, only nitrate radicals and chloride ions of certain concentrations in the waste liquid need to be controlled, no secondary pollution can be caused, efficient removal of multiple divalent radioactive metallic ions can be achieved, and the method only aims at removal of strontium ions, is capable achieving efficient solid-liquid separation, is wide in material resource, simple in process and convenient to operate.
Owner:EAST CHINA UNIV OF SCI & TECH

Method for comprehensively recycling valuable metal from copper nickel slag

The invention discloses a method for comprehensively recycling valuable metal from copper nickel slag. The method comprises the following steps: leaching iron out of raw material copper nickel slag by a step-by-step concentration difference leaching method, carrying out flotation enrichment on the leaching slag to prepare copper cobalt nickel bulk concentrate; selectively extracting iron from the leaching liquid by an extraction method to prepare iron oxide red, or precipitating the leaching liquid to prepare refined iron powder and water glass. By the method, high-grade copper cobalt nickel bulk concentrate, powdered iron, high-purity iron oxide red, high-modular water glass and other products are prepared with low cost. The method is environment-friendly and easy to operate and can realize continuous industrial production.
Owner:斯莱登(北京)化工科技有限公司

Kitchen waste decrement extrusion equipment

The invention relates to kitchen waste decrement extrusion equipment, and relates to the field of waste treatment structures. The kitchen waste decrement extrusion equipment comprises a packing auger, a packing auger barrel, a filtering structure and a water filtering groove; the packing auger is horizontally installed in the packing auger barrel; one end of the packing auger barrel is communicated with the filtering structure; the filtering structure is placed into the water filtering groove; the packing auger comprises a core shaft and a spiral blade; the core shaft is of a conic cylindrical structure, the radial direction of the core shaft is gradually increased in the spiral extrusion direction; a feeding opening is formed in the packing auger barrel; a water discharging opening is formed in the bottom of the water filtering groove; the filtering structure is of a water filtering barrel structure formed by coaxially assembling a plurality of heating rings; a rotating ring is further arranged in a clamping seam between every two adjacent heating rings; liquid waste flows out from the clamping seams, and the rotating rings slide in the clamping seams to be used for cleaning waste generating blockage in the clamping seams; the rotating rings and the heating ring have an eccentric position relationship, and the rotating rings are connected with the packing auger; and the packing auger drives the rotating rings to do eccentric motion in the clamping seams between the heating rings.
Owner:SUZHOU MEISHENG ENVIRONMENTAL PROTECTION TECH

Drying and filtering structure

The invention discloses a drying and filtering structure, and relates to the field of rubbish treating structures. The drying and filtering structure comprises a packing auger and a filtering structure; the filtering structure is a water filtering barrel structure formed by assembling a plurality of heating rings in a coaxial manner; a rotating ring is arranged in a crack between every two adjacent heating rings; liquid rubbish flows out from the cracks, and the rotating rings slide in the cracks to be used for cleaning rubbish blocking the cracks; the rotating rings and the heating rings have an eccentric position relationship; one end of the packing auger is coaxially matched into the filtering structure; the packing auger comprises a core shaft and a spiral blade; the rotating rings are connected with the packing auger; and the packing auger drives the rotating rings to do eccentric rotation in the cracks between the heating rings. According to the drying and filtering structure, the structural design is more reasonable, a solid-liquid mixture can be subject to solid-liquid separation effectively, and oil grease blockage is effectively prevented.
Owner:SUZHOU MEISHENG ENVIRONMENTAL PROTECTION TECH

Olive oil production line

The invention discloses an olive oil production line, comprising an electric control system, and a feeding and winnowing device, a cleaning and screening device, a spiral feeding device, a fusion device, a separating device and a purifying device which are successively arranged on the production line. Olive fruit is poured into the feeding and winnowing device to remove leaves and dust, and then enters the cleaning and screening device for cleaning and screening; the cleaned olive fruit falls into the spiral conveying device and is spirally lifted to fusion device of the production line by thespiral conveying device; the olive fruit undergoes crushing, stirring and fermentation, and sufficient fusion in the fusion device; pulp obtained after stirring fermentation is conveyed to the separating device of the production line to completely separate oil-water and pomace in the pulp; and the screened oil-water is completely conveyed to a storage unit in the purifying device and then entersa disc separator for high-speed separation to produce a pure high-quality oil product. With such a technical scheme, the olive oil production line has low cost, ensures the axis parallelism of rollers, is smooth in operation, good in dust removal effect, thorough in cleaning, crushing, stirring and fusion, and high in yield, and ensures oil quality.
Owner:ANHUI SAIERTE CENTRIFUGE

Method for preparing water glass by using copper and nickel slag

The invention discloses a method for preparing water glass by using copper and nickel slag. The method comprises the following steps: 1) leaching the copper and nickel slag (obtained after ore grinding treatment) step by step, and then performing solid-liquid separation I to obtain leached solution I and leached slag I; 2) oxidizing Fe<2+> ions in the liquid phase into Fe<3+> ions in the presence of acid, adding the original slag to regulate the pH value, and then performing solid-liquid separation II to obtain separated solution II and separated slag II; 3) continuously adding the copper and nickel slag into the separated solution II to regulate the pH value, and performing solid-liquid separation III to obtain separated solution III and separated slag III; and 4) washing the separated slag III, blending the slurry, pumping into an autoclave, pumping a sodium hydroxide solution required in the process, and controlling the pressure and temperature in the autoclave to separate silicon out, thus obtaining the water glass. The method has the advantages of use of readily available raw materials, safe and simple operation and low equipment investment, and is suitable for large-scale industrial production.
Owner:斯莱登(北京)化工科技有限公司

Environment-friendly kitchen food compressor

The invention discloses an environment-friendly kitchen food compressor which comprises a crushing barrel and a sealing cover. A discharging pipe is embedded under the crushing barrel. Cutoff valves are mounted in the middle of a guide pipe and the middle of the discharging pipe. A side plate is mounted on the left side of the crushing barrel in a screw manner. Crushing rolling shafts are mountedon the upper portion in the crushing barrel. A protection shell is mounted behind the crushing barrel in a screw manner, and a motor is mounted on the upper portion of the left side of the crushing barrel. An end cover is mounted on the upper portion of a compression box in a screw manner. An electromagnet is mounted in the middle of the lower surface of a compression plate in a screw manner. A through hole is formed in the right side of the compression box. A filter plate is mounted on the upper portion of a liquid accumulation trough in a bolt manner. Liquid drainage pipes are embedded on the rear portion of the liquid accumulation trough, and a flushing pipe is embedded on the front portion of the liquid accumulation trough. According to the environment-friendly kitchen food compressor,an object box is arranged, concave-convex cooperation design is adopted, overall folding of the object box is greatly facilitated in the use process of the object box, and stability of the object boxis effectively increased.
Owner:台州市缤纷包装有限公司

Production method for organic acid fermentation aspergillus niger mycelium extract

The invention belongs to the technical field of microorganisms, and particularly relates to a production method for organic acid fermentation aspergillus niger mycelium extract. The method includes the steps that an organic acid fermentation aspergillus niger mycelium obtained after starch raw materials are adopted for producing organic acid through aspergillus niger fermentation is filtered, washed and subjected to serous mixing, and mycelium serous fluid is obtained; a cell wall-breaking enzyme is added into the mycelium serous fluid for carrying out a cell wall-breaking reaction, and wall-broken serous fluid is obtained; protease and nuclease are added into the serous fluid for carrying out a hydrolysis reaction, so that hydrolysate is obtained; the hydrolysate is subjected to centrifugal separation, so that a liquid phase is obtained; the liquid phase is directly subjected to evaporation and concentration, so that the aspergillus niger mycelium extract is prepared. According to the method, pollution is avoided, the reaction condition is moderate, product quality is good, and high-valued utilization of the aspergillus niger mycelium is realized.
Owner:SHANDONG UNIV OF TECH

Municipal waste treatment system

The invention relates to the technical field of municipal waste treatment, and discloses a municipal waste treatment system. The municipal waste treatment system comprises a top box, the right side and the bottom of the top box are fixedly connected with a light object containing box and a bottom box correspondingly, two indicator lamps are fixedly installed on the left side of the front face of the bottom box, the top of the left side of the top box communicates with a feeding rod, the right side of the bottom of the top box communicates with a discharging rod with one end penetrating into an inner cavity of the bottom box, an electromagnetic valve is fixedly installed on the discharging rod, a baffle is fixedly installed on the inner bottom wall of the top box, an electric push rod is fixedly installed on the inner bottom wall of the baffle, and the top of the electric push rod is fixedly connected with a movable plate with one end penetrating out of the baffle. According to the municipal waste treatment system, the overall structure is simple, solid-liquid separation and light and heavy waste separation are effectively conducted on waste, meanwhile, the waste is smashed, complexity of follow-up waste treatment is avoided, the waste treatment efficiency and quality are improved, and use is convenient.
Owner:覃开平

Solid-liquid separation negative pressure treatment equipment

The invention discloses solid-liquid separation negative-pressure treatment equipment which comprises a rack, a filter bin, a negative-pressure bin, a rotating shaft driving device, a main shaft assembly and a filter cartridge; a sewage inlet and a solid scraper blade are arranged on the filter bin, and one side of the filter cartridge is matched with the solid scraper blade; the main shaft assembly comprises a main rotating shaft and a negative-pressure shaft, the main rotating shaft is matched with the rotating shaft driving device, one end of the negative-pressure shaft is located in the negative-pressure bin, the other end of the negative-pressure shaft penetrates into the filter cartridge to be connected with the main rotating shaft, and a water inlet is formed in the part of the negative-pressure shaft entering the filter cartridge; according to the scheme, sewage is filtered through the filter cartridge in the filter bin, the filter cartridge rotates, filtered solids are scrapedoff through the scraper blade, the sewage is subjected to negative-pressure extraction from the interior of the filter cartridge, and it is guaranteed that the extracted sewage is certainly subjectedto effective solid-liquid separation; the whole equipment can keep efficient, stable and continuous operation, the sewage treatment efficiency is high, the solid-liquid separation effect is good, andmanual repeated dismounting and washing are avoided.
Owner:苏州傲龙环保科技有限公司

Food processor with solid-liquid separation function

An embodiment of the invention relates to a food processor with a solid-liquid separation function. The food processor comprises a power unit, a cutter, a centrifugal cup and a barrel body, wherein the centrifugal cup is arranged in the barrel body; filter holes are formed in the centrifugal cup; the cutter is arranged in the centrifugal cup and is driven by the power unit; the centrifugal cup is connected with the power unit through a clutch; the state relationship between the clutch and the centrifugal cup includes that when the clutch is in a separation state, the power unit drives the cutter to rotate, and the rotating speed of the centrifugal cup under the action of external resistance is lower than that of the cutter or is zero; and when the clutch is in a reunion state, the power unit drives the centrifugal cup and the cutter to rotate. According to the food processor, the defects in the prior art are overcome, and the crushing reliability and efficiency are improved. The food processor can safely work and effectively separate solid from liquid, and is reasonable in structure and convenient to use.
Owner:王晓东

Drinking water deeply purifying method and device

The invention discloses an advanced purification method for drinking water and a device thereof. The advanced purification process for drinking water is explored aiming at generally existing micro-polluted source water and the process combines a biological activated carbon filter and an ultrafiltration membrane biological reactor to purify the drinking water in an advanced way. After the raw water being treated enters the biological activated filter first, the particulate matters in the water being partly intercepted; pollutants like organic matters and ammonia nitrogen and so on are partly degraded and the water quality is purified to some degree; load of the ultrafiltration membrane biological reactor is reduced; the water in the filter is discharged into the ultrafiltration membrane biological reactor; the activated sludge in the reactor biologically treats the water from the filter and the pollutants ammonia nitrogen and the organic matters in the water are degraded again; at last, the water after two-level biodegradation is drawn form ultrafiltration membrane component by a draw-suck pump and the remarkable effect of removal of particulate matters as well as interception of two insects, daphnia, red worms, alga, bacteria and even virus of the ultrafiltration membrane can be brought into play.Therefore, the safe and clean drinking water with excellent quality can be prepared.
Owner:东营工大水环境技术有限公司

Energy-saving kitchen waste processor

The invention belongs to the technical field of kitchen waste processing apparatuses, concretely relates to a waste process for concentrated processing of domestic wastes, and aims to provide a waste concentrated processor with the characteristics of safe use and good waste processing effect. The energy-saving kitchen waste processor comprises a filtering system and a crushing device, the crushing device is used to carry out concentrated crushing of district wastes, and allows wastes with different sizes to be mixed with water and to be crushed to form a paste, and allows the obtained paste to be sent into a feeding system in a concentrated manner, and press filtration dehydration and vacuum water absorption are simultaneously carried out to make pressed water timely pumped out in a vacuum manner. The processor has the advantages of effective solid-liquid separation of wastes, high practicality, unified processing of liquids and solids having different properties, high recycling rate, good use effect, and avoiding of pollution of too many wastes to district environment.
Owner:SHANGHAI BINGHUI INTELLIGENT NEW MATERIAL SCI& TECH

Environmental protection equipment for sludge treatment

The invention discloses environmental protection equipment for sludge treatment. The equipment includes a tank; a transversely arranged filter cartridge is arranged in the tank; lifting rings fixedlysleeve the two ends of the side wall of the filter cartridge; the upper ends of the two lifting rings are fixedly connected with the upper side wall of the tank through fixing rods; a driving motor isfixedly connected to the left end outside the filter cartridge; the output end of the driving motor is rotationally connected with a rotating rod through a coupler; the end, away from the driving motor, of the rotating rod penetrates through the side wall of the filter cartridge and is rotationally connected with the filter cartridge through a rolling bearing; the rod wall of the rotating rod isfurther fixedly connected with spiral blades; an opening is formed in the side, away from the driving motor, of the filter cartridge; a sludge pipe is fixedly connected to the opening; and a sludge box is movably arranged below the interior of the tank. According to the environmental protection equipment, solid-liquid separation can be effectively carried out on sludge, so that filtered water andsludge can be respectively treated, secondary pollution of the sludge to the environment is avoided, and the environmental protection equipment is convenient for people to use.
Owner:江都区武坚兴业机械厂

Technology for microbial wall breaking and solid-liquid separation of fruit and vegetable wastes

The invention discloses a technology for microbial wall breaking and solid-liquid separation of fruit and vegetable wastes. The technology comprises the following steps that 1, the fruit and vegetablewastes are broken; 2, a microbial preparation is prepared; 3, the microbial preparation is used; and 4, liquid is discharged from a biochemical fermentation tank, and residual solid matter is pressedand dehydrated by adopting a screw press. According to the technology, the fruit and vegetable wastes are treated by the technology of microbial wall breaking and solid-liquid separation, aiming at the high water content of the fruit and vegetable wastes and the limitation that plant cell walls cannot be broken by conventional methods, bound water in plant cells is released, and the effective dehydration of the fruit and vegetable wastes is achieved by microbial enzymolysis; the microbial technology is used, the limitation of the plant cell walls is quickly broken by using the enzyme producedby microorganism, the effective solid-liquid separation is achieved in the processing link of the fruit and vegetable wastes, the reduction of the fruit and vegetable wastes is achieved to the greatest extent in a short time, and a foundation is laid for the effective disposal of the next step.
Owner:ZHEJIANG HUAQINGYUAN BIOTECH CO LTD

Preparation method of high-purity lithium carbonate

The invention belongs to the field of chemical engineering, relates to the field of lithium batteries, and particularly relates to a preparation method of high-purity lithium carbonate. The preparation method comprises the following steps: 1, slowly adding lithium chloride into distilled water, carrying out low-temperature ultrasonic treatment, and filtering to obtain a lithium chloride solution;2, adding ammonium bicarbonate into distilled water, and stirring at a low temperature until ammonium bicarbonate is completely dissolved to form an ammonium bicarbonate dissolving solution; 3, slowlydropwise adding the lithium chloride solution into the ammonium bicarbonate solution, uniformly stirring at a low temperature until drop-by-drop addition is finished, and standing for 1-3 h at a lowtemperature so as to obtain a mixed solution; and 4, adding the mixed solution into a reaction kettle, carrying out a constant-temperature spray reaction, carrying out standing sedimentation, carryingout tail blowing by using dry nitrogen, and cooling to obtain the high-purity lithium carbonate. The problems of complex process and low efficiency caused by an impurity removal process in the priorart are solved, a spray reaction system is utilized to form rapid vaporization of raw materials and products, a lithium carbonate crystal nucleus structure is formed, and complete conversion of lithium carbonate is greatly improved.
Owner:苏州波粒新能源科技有限公司

A preparation method of magnetic mesoporous silica adsorbent for removing aflatoxin in edible oil

The invention relates to a preparation method of a magnetic mesoporous silicon dioxide adsorbent for removing aflatoxin in edible oil. The preparation method specifically comprises the following steps: (1) dissolving rice hull ash and an alkali solid to obtain a rice hull ash alkaline solution; (2) after adding ferric salt, quickly adding stronger ammonia water and heating and stirring; filtering and separating, washing, drying and grinding precipitate; (3) putting magnetic microparticles and a cationic surface active agent in a beaker, dropwise adding an adjuvant, carrying out ultrasonic dispersion, stirring, adding the rice hull ash alkaline solution to adjust the pH value, maintaining the temperature, and further stirring; and (4) after reaction, aging, carrying out centrifugal separation on the precipitate, washing the precipitate by deionized water for several times, and after drying, carbonizing and calcining the precipitate, removing the cationic surface active agent to obtain a product which is the magnetic mesoporous silicon dioxide adsorbent. The preparation method provided by the invention is simple in preparation process and mild in condition, raw materials are low in cost, and the obtained magnetic mesoporous silicon dioxide adsorbent is high in specific surface area, can be used for effectively removing aflatoxin B1 in edible oil, is easily separated from food materials, and can be repeatedly used.
Owner:JIANGNAN UNIV
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