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1411results about How to "Guaranteed concentration" patented technology

Automatic dosing device for sewage treatment

The invention discloses an automatic dosing device for sewage treatment, which consists of a medicine dissolving box, a medicinal powder dosing device, a medicine dissolving mixer, a mixer driving motor, a water inlet pipe, a medicine outlet pipe and a dosing pump. A pre-infiltrating device is arranged between the medicinal powder dosing device and the medicine dissolving box; the medicine dissolving box are separated by two overflow weirs to form a dissolving tank, a curing tank and a storing tank which are adjacent in turn; and a homogenizing stirrer is arranged in the curing tank. The pre-infiltrating device is arranged in the automatic dosing device for sewage treatment and is used for soaking dry flocculant powder, medicine solution flows into the dissolving tank by means of gravity and is stirred and mixed, the curing tank and the storing tank are arranged, low-speed stirring is carried out in the curing tank, and medicine solution meets the requirements of homogenization, curing and activity; the medicine solution passes through the overflow weirs to flow into the solution storing tank, so that the dissolving and stirring of the dry powder, the homogenization and curing of the solution and the dosing of the liquid medicine are synchronously carried out, and the efficiency and the liquid medicine utilization rate are improved; and the dry powder is accurately weighed, the caking of the dry powder is avoided, the concentration of the liquid medicine is ensured, and the medicine solution can be diluted on line according to requirement of actual application concentration.
Owner:开源环保(集团)有限公司

Synchronous denitration process based on wet ammonia process flue gas desulfurization

The invention discloses a synchronous denitration process based on wet ammonia process flue gas desulfurization. The problems such as high operating cost and equipment investment cost, complex process and high energy consumption existing in an existing process are solved. According to the technical scheme, the process comprises the following steps: pressurizing flue gas, feeding the flue gas into a concentrating tower, allowing the flue gas to contact and react with a concentrated solution in the tower, feeding the flue gas out of the concentrating tower into an absorption tower to contact and react with absorption liquid in the tower, feeding a small amount of reacted concentrated solution at the bottom of the concentrating tower into an ammonium sulfate crystallization system, and adding a complexing agent EDTA-Fe (II) or adding EDTA-Na salt and ferrous sulfate according to a molar ratio of 1:1 into the absorption liquid in the absorption tower, so that the concentration of the EDTA-Fe (II &III) in the absorption liquid is 0.015-0.05mol/L; and feeding a small amount of absorption liquid in the absorption tower into the concentrating tower to be mixed with the concentrated solution. The synchronous denitration process disclosed by the invention has the advantages of simplicity, low operating cost and equipment investment, capacity of performing high-efficiency synchronous desulfurization and denitration and low energy consumption.
Owner:WUHAN WUTUO TECH +2

Intelligent adjusting system of in-vehicle air quality and application method thereof

The invention relates to an intelligent adjusting system of in-vehicle air quality and an application method thereof. The system comprises an air quality detecting unit, an air quality adjusting unit and a data processing control unit. The air quality detecting unit comprises a concentration detector of pollutants inside and outside a vehicle; the air quality adjusting unit comprises a vehicle-mounted air conditioner and a vehicle-mounted air purifier; the data processing control unit comprises a processor and a wireless control terminal; and the processor and the wireless control terminal are connected through an internet of things technology. Controllers input travel parameters through the wireless control terminal; the parameters are transmitted into the processor through networking; the processor calculates optimal operation parameters of the air quality adjusting unit through a pre-built calculation model and data input by the air quality detecting unit and the air quality adjusting unit, and returns and performs an instruction to realize intelligent adjustment of the in-vehicle air quality. The system can detect the pollution level of the pollutants inside and outside the vehicle in real time, optimally adjusts the operation parameters of the vehicle-mounted air conditioner and a vehicle-mounted air filter, and improves the in-vehicle air quality. The adjusting system has such characteristics as advanced and reasonable settings, realization of automatic control, complete functions and simple and fast operation.
Owner:XIAMEN MAXMAC AIR TECH

Integrated water purifying and processing equipment

The invention discloses integrated water purifying and processing equipment. The equipment comprises an external barrel and an internal barrel, wherein a convex head is arranged at the top of the external barrel; a water outlet is formed in the center of the convex head; a conical bottom plate is arranged at the bottom of the external barrel; a mixer motor and a speed reducer are arranged in the center of the bottom of the conical bottom plate; the speed reducer is provided with a stirring shaft; the side wall of the conical bottom plate is provided with a dredge pipe; an escape pipe is arranged at the bottom of the conical bottom plate; the inner side of the external barrel is divided into a clean water zone, an inclined tube settling zone, a mud and water separating zone, a secondary cluster flocculation zone, a primary flocculation reaction zone and a mud collection zone in turn from top down; a sludge concentrating zone is arranged between the internal barrel and the external barrel; the equipment is provided with a coagulant quick coagulation device and a sludge hydraulic automatic backflow device to keep the concentration of the sludge in the reaction zone stable; the sludge concentrating zone is provided with a spiral bevel plate to efficiently concentrate the sludge; and the clean water zone is provided with a water collecting plate to realize pressure effluent. The equipment has a simple structure, compact layout and high space utilization rate, is convenient to operate, and is suitable for clarifying tap water in middle-sized and small cities and purifying industrial water by primarily removing turbidity.
Owner:XI'AN UNIVERSITY OF ARCHITECTURE AND TECHNOLOGY

Separation and purification method of silicon wafer cutting waste mortar

The invention discloses a separation and purification method of silicon wafer cutting waste mortar. The method comprises the following steps: 1) performing solid-liquid separation to waste mortar to obtain solid separated substance and mixed solution 1; 2) separating and recycling polyethylene glycol (PEG), namely performing tertiary filtration to the mixed solution 1, performing resin treatment and performing vacuum distillation to obtain PEG finished product; 3) separating and recycling crystalline silicon powder, namely performing multiple settlement sortings and solid-liquid separations to the solid separated substance, pickling the obtained solid separated substance, filtering, dewatering and drying to obtain crystalline silicon powder; and 4) separating and recycling SiC fine powder, namely performing multiple settlement sortings and solid-liquid separations to obtain a precipitation layer, pickling, performing solid-liquid separation, rinsing and drying to obtain SiC fine powder. The method of the invention has reasonable design, simple steps, convenient operations, high efficiency and low investment and operation cost, the large-scale production is easy to realize and the separated and purified PEG, crystalline silicon powder and SiC fine powder have good qualities.
Owner:SHAANXI DESHENG NEW ENERGY

Preparation of efficient phenol-degrading halophilic bacteria and application thereof

InactiveCN101768564AOptimal hydraulic retention timeThe performance advantage of reducing phenol is obviousBacteriaTreatment using aerobic processesActivated sludgeBatch processing
The invention discloses a preparation of efficient phenol-degrading halophilic bacteria and an application thereof, belonging to the technical field of treatment of waste water and sewage. In the invention, halophilic bacteria in the sewage or sludge are taken as a bacteria source; a gradient domestication method is adopted to screen efficient phenol-degrading halophilic bacteria which have strong degradation capability, can adapt to higher salt concentration and can grow well by taking phenol as the sole carbon source in the phenol-containing waste water with the salt content of 5-6% and thephenol concentration of 100-500mg/L; under the environment of high salt and high phenol, the phenol-degrading performance of the mycelium has obvious advantages over that of the traditional activatedsludge method. The strain can be applied to phenol-degrading treatment of waste water to determine the optimal water power retention time and the optimal bacteria input amount and batch processing time, and the operational conditions can be optimized through orthogonal experiments. The screening of the efficient phenol-degrading halophilic bacteria has high application value, and can provide a reference for the removal of phenol in the oil extraction waste water and the industrial treatment of the phenol-containing wastewater with high content of salt in petrochemistry industry.
Owner:BEIHANG UNIV

Method for comprehensively treating saline and alkaline land through combination of irrigation and planting

ActiveCN104904365AImprove the effect of salt removalImprove abilityClimate change adaptationWatering devicesPipeflowMoisture
The invention discloses a method for comprehensively treating saline and alkaline land through combination of irrigation and planting. The method comprises the following steps: (a) paving underground pipelines, including micro-moisture pipes for irrigation and salt discharge underground pipes for discharging salt; (b) leveling and furrowing the saline and alkaline land for irrigation salt discharge, wherein the irrigation salt discharge includes underground salt discharge and surface salt discharge and specifically comprises the following three steps in sequence: I, performing underground salt discharge; II, performing surface salt discharge, and performing rapid large-area surface salt discharge on the saline and alkaline land subjected to the underground salt discharge through a flood irrigation way; III, repeating the underground salt discharge; (c) planting suaeda salsa on a large area, continuously performing micro-moisture irrigation salt discharge before and after seedling emergence of the suaeda salsa, performing micro-moisture irrigation intermittently after branching of the suaeda salsa till the end of the peak-growth period of the suaeda salsa, pulling up the suaeda salsa by the roots, and planting crops or continually planting the suaeda salsa according to the soil salinity to further reduce salinity.
Owner:WEIFANG YOURONG IND

Zero-emission treatment system and method of epoxy ethane

The invention discloses a zero-emission treatment system and method of epoxy ethane. The method comprises the following steps: firstly, a chemical combination treatment is carried out on an epoxy ethane waste gas in a chemical combination device; the epoxy ethane waste gas generates a sulfonation reaction with a sulfonation reaction agent in the chemical combination device; the epoxy ethane is oxidized to generate carbon dioxide and ethylene glycol; the generated carbon dioxide and the residual epoxy ethane waste gas are discharged into a turbulence ball tower; the residual epoxy ethane waste gas is output to the turbulence ball tower by a gas-liquid pump and is fully mixed and dissolved in hot water pumped by the gas-liquid pump in the turbulence ball tower; then, the epoxy ethane waste gas dissolved in the wastewater is treated on the basis of an aeration tank, a sedimentation tank and a filter tank, and meanwhile, organic matters in the wastewater can be treated as well, wherein micro-biological degradation is mainly used for carrying out oxygenation degradation on the epoxy ethane waste gas dissolved in the water through microbial communities forming flocculating constituents in the aeration tank; finally, CO2, H2O, NH3, SO42 and the like are generated and are discharged with the water, so that the epoxy ethane waste gas is treated.
Owner:杨亮月 +1

Fully automatic and high-precision dust and sand collector

The present invention relates to a fully automatic and high-precision dust and sand collector, which comprises a vane-driven dynamic dust and sand collection system and a box-type static dust and sand measurement system. The box-type static dust and sand collection system is arranged in an equipment shell, and the vane-driven dynamic dust and sand collection system is arranged at the top of the equipment shell and on the box-type static dust and sand collection system. The fully automatic and high-precision dust and sand collector realizes ideal combination of dynamic collection and static weighing of dust and sand in the windward direction during dust and sand collection, the dust and sand are guided into the box-type static dust and sand collection system from the vane-driven dynamic dust and sand collection system via a hollow shaft, the real-time dynamic measurement of the collected dust and sand is achieved, historic breakthroughs are made in the measurement precision and resolution through multi-level weighing, the measurement range is greatly improved, and the high-precision, high-frequency, long-cycle and fully automatic monitoring is actually achieved. The precision of the dust and sand collector is 6-20mg.
Owner:INST OF DESERT METEOROLOGY CMA URUMQI +1

Method for improving forage nutritional value of cottonseed meal through microbial fermentation

InactiveCN104186957AImprove the nutritional value of feedHigh protein contentAnimal feeding stuffBiotechnologyCellulose
The invention utilizes a microbial fermentation technology to improve the forage nutritional value of the cottonseed meal, so as to improve the forage quality of the cottonseed meal, increase the addition proportion in the forage and realize the promotion of the protein nutritional value and the feeding value of the cottonseed meal, aiming at the disadvantages that cottonseed meal is rich in antinutritional factors of free gossypol, cellulose, oligosaccharide, phytic acid and the like, the protein quality is relatively poor and the content of essential amino acids of methionine and the like is low and unbalanced, so that the large-scale forage of cottonseed meal is restricted. The method for improving forage nutritional value of cottonseed meal through the microbial fermentation adopts the technology of 'composite enzymatic hydrolysis and multi-strain three-step solid-state fermentation', so as to prepare the fermented cottonseed meal product that is high in the free gossypol, cellulose degradation degree and the protein content; the cottonseed meal product is rich in nutritional ingredients of probiotics, vitamins, enzyme, amino acid, short peptide, high-grade protein and the like; the method for improving the forage nutritional value of cottonseed meal through the microbial fermentation has the advantages of prompting growth and development, improving the utilization ratio of the forage, enhancing immunization, improving intestinal micro ecology, preventing diseases and the like. The method for improving forage nutritional value of cottonseed meal through the microbial fermentation adopts the solid-state fermentation; the manufacturing technology is simple; the energy consumption is low; zero environmental pollution is generated; and the investment is small. Therefore, mass production is easy.
Owner:QINGDAO JIARUI BIOLOGICAL TECH

Improved aeration settling tank

The invention belongs to waste water treatment equipment, especially relating to an improved aeration settling tank. The improved aeration settling tank comprises a tank body, a water inlet pipe arranged in front of the side wall of the tank body, a slope tilting downwards from end to beginning and arranged on the bottom of the tank body, an aerator arranged on the bottom of the tank, a water tank arranged at the inner side of a tank wall on the tail end of the tank body and inclined plates distributed at interval and in parallel in front of the water tank; the front side and the back side of the inclined plate are respectively provided with a first partition wall and a second partition wall; the first partition wall and the second partition wall divide the tank body into an aerobic zone, a pre-settling zone and a clean water zone which are arranged from front to back at interval; the pre-settling zone is communicated with the aerobic zone through water inlet holes and sludge returning holes arranged on the first partition wall; a perforated water collector pipe is arranged in parallel on the upper portion of the second partition wall; the inlet of the perforated water collector pipe is arranged in the pre-settling zone above the inclined plate, and the outlet thereof is arranged in the clean water zone; a sludge pipe is arranged on the bottom of the tail end of the clean water zone; the bottom of the water tank is communicated with the exterior of a water pipe. The improved aeration settling tank overcomes the technical defect that the degradation rate of pollutants is low in the prior art and has the advantages of good sludge settling effect, high degradation rate of the pollutants and so on.
Owner:JIACHENG ENVIRONMENTAL PROTECTION ENG CO LTD

Multilayer rotary kiln based small granular material destructive distillation method

The invention relates to a multilayer rotary kiln based small granular material destructive distillation method. The method comprises the following steps: adding oil shale granules (with the granularity of 0-20mm) with the water content of below 5% to a bunker from a kiln head, sending to the inner cylinder of a rotary kiln by a spiral conveying device, heating the material in the inner cylinder to 500DEG C through the circulation of high temperature hot flue gas (with the temperature of 700DEG C) from a hot blast stove in an annular channel between an outer cylinder and the inner cylinder to pyrolyze the oil shale material in order to generate a destructive distillation gas and semicoke, and carrying out purifying recovery on the destructive distillation gas to obtain gas and shale oil; and adding the semicoke into the annular channel from the inner cylinder, allowing the semicoke to run along a direction opposite to the material running direction in order to carry out heat exchange of the material in the inner cylinder and absorb the waste heat of the semicoke, discharging parts of the semicoke from the stove, and adding a small amount of the semicoke to the inner cylinder for the mixing of the small amount of the semicoke with a normal temperature mixture in order to further utilize the waste heat of the semicoke. The method has the advantages of simple technology, low energy consumption, no pollution, high product quality, realization of the industrial large-scale production, and easy large-area popularization.
Owner:CHINA NAT HEAVY MACHINERY RES INSTCO

Method and device for detecting and controlling acetoacetic ester continuous reaction system on line

InactiveCN102103363AReal-time monitoring of component concentrationsComponent concentration ensuresComponent separationPhase-affecting property measurementsChemistryAcetic anhydride
The invention provides a method and device for detecting and controlling an acetoacetic ester continuous reaction system on line. The method comprises the following steps of: proportionally controlling the inventory ratings of diketene and fatty alcohol for undergoing an esterification reaction; testing the refractive index and the reaction temperature of the reaction system on line; establishinga neural network soft measurement model for indirectly measuring the concentration of a main component in a reaction kettle according to the refractive index, the content of acetic anhydride in fed diketene and the reaction temperature; and correcting and controlling a flow proportion controller based on the model so as to realize online detection and control of the acetoacetic ester continuous reaction system. By adopting the method and the device, the concentration of the main component in the reaction system can be monitored in real time in an acetoacetic ester continuous preparation process, an abnormal reaction condition is avoided, raw material input quantity proportion can be correspondingly controlled in time according to real-time detection data simultaneously, the concentration of the main component in the reaction system is kept in a normal process range, and the acetoacetic ester continuous preparation process is further optimized.
Owner:SHANGHAI WUJING CHEM

Sludge reflow-free device with simultaneous nitrification and denitrification (SND) function and operation control method thereof

ActiveCN102173510ASolve the problem that it is difficult to control the microbial metabolic environmentEasy to operate and controlControlling ratio of multiple fluid flowsTreatment with aerobic and anaerobic processesSludgeCombined use
The invention discloses a sludge reflow-free device with a simultaneous nitrification and denitrification (SND) function. The device comprises a pool body; the sidewall of the pool body is provided with a main water inlet; the interior of the pool body is divided by a clapboard into a diversion area, an aeration area and a sludge precipitation area in sequence; the aeration area is internally provided with an overflow groove; the bottom of the aeration area is provided with microporous aeration devices distributed uniformly; and the sludge precipitation area is internally provided with a membrane element. The invention also discloses an operation control method of the device. By skillful arrangement of aeration pipes and combined use with a biological membrane, the power cost and the operating cost of sludge reflow are saved, and the purpose of reducing energy consumption is achieved. The biological environment to be achieved by the simultaneous nitrification and denitrification is adjusted indirectly through adjusting parameters such as active sludge concentration, sludge age, unit sludge load and the like; the operation is strong in human controllability, and the problem that the microbial metabolic environment in the SND technology is not easy to control is solved.
Owner:ZHEJIANG GONGSHANG UNIVERSITY
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