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45results about How to "Solve the sewage problem" patented technology
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Flocculating agent for treating sewage in Chinese patent medicine production enterprises and preparation method thereof
ActiveCN102887581ANot easy to recycleBiodegradableOther chemical processesWater/sewage treatment by flocculation/precipitationMedicinePhytic acid
The invention discloses a flocculating agent for treating sewage in Chinese patent medicine production enterprises, wherein the flocculating agent comprises the following compositions: 30-45% of carapace crushed materials, 3-12% of modified chitosan, 0.05-0.5% of nanometer titanium dioxide, 0.1-0.5% of phytic acid, and 45-55% of zeolite; in order to optimize the effect, the flocculating agent is also added with 1-5% of white mica and 1-5% of active carbon. The flocculating agent provided by the invention is utilized to treat the sewage; the flocculating agent provided by the invention has very high efficiencies of removing COD (chemical oxygen demand) and BOD (biochemical oxygen demand); and the flocculating agent provided by the invention is efficient and economical.
Owner:JIANGSU SHANGDA WATER AFFAIR
Harmless comprehensive treatment process flow for municipal solid waste
InactiveCN102489489AImprove economic efficiencySolve the siege phenomenonSolid waste disposalIntegrated processingControl system
The invention provides a harmless comprehensive treatment process flow for municipal solid waste. The flow is an equipment assembly line for daily treating 500 tons of the municipal solid waste. The equipment assembly line comprises 10 main systems and 72 procedures: a waste sorting system, a winnowing system, a fermentation system, a fertilization system, a methane purification system, a generation system, a heat supply system, a composite board manufacturing system, a visual monitoring system and an electric device integrated control system. The municipal solid waste is divided into organic matters and inorganic matters after entering into the flow. A lot of component boards for constructions are produced by the inorganic matters, and a lot of methane is produced by the organic matters after fermentation. The methane can be used for generating electricity, burning boilers and being filled in tanks for sales after being purified. The solid organic matters can be produced to be organic fertilizers. No air pollution exists. According to the harmless comprehensive treatment process flow for the municipal solid waste disclosed by the invention, the harmful waste is changed to be harmless and useful, and is recycled. The harmless comprehensive treatment process flow has important a meaning for energy conservation and emission reduction, worker employment, agricultural development and environmental conservation.
Owner:郑九洲
All-purpose cooking machine
The invention relates to an all-purpose cooking machine. The all-purpose cooking machine comprises a machine body, a multi-functional cooking area and an auxiliary area are arranged in the machine body, the multi-functional cooking area is a cooking chamber which is formed by arranging a heater, a pot body, a slice and a vegetable plate support in the machine body, an opening door is arranged on the cooking chamber, and the heater, the pot body, the slice and the vegetable plate support of the cooking chamber are distributed from bottom to top; the cooking area is provided with a heat circulation system, the heat circulation system comprises a circulation channel arranged in the multi-functional cooking area and a centrifugal draught fan arranged on the circulation channel, an exhaust inlet in one end of the circulation channel is formed above the cooking area, an air outlet in the other end of the circulation channel is back-connected into the cooking area, and therefore the heat circulation and utilization system of the cooking area is formed; the auxiliary area comprises multiple compartments which are arranged at one side of the cooking area and used for storing cooking supplies and cooking utensil. The all-purpose cooking machine has the advantages that multiple functions are achieved, occupied space is small, investment cost can be effectively lowered, and the all-purpose cooking machine is more suitable for the market demand.
Owner:徐宁宁
Haze control method
InactiveCN104846770ASolve the sewage problemSolve pollutionDispersed particle filtrationFog dispersionIndustrial waste waterGreening
The invention discloses a haze control method preventing dust via spraying colloid on exposed mud. The colloid is prepared when water-absorbing high polymer material is added to industrial waste water. By the use of the haze control method, problems of factory pollutant discharging and haze pollution can be solved; product viscosity can be adjusted; labor intensity is reduced due to mechanical spraying; and moisture and fertilizer retention or greening for large area plants can be achieved with low cost.
Owner:蒋伟哲
Contiguous seam efficient filling material
InactiveCN106517940AWide variety of sourcesLow costSolid waste managementPortland cementCompressive strength
The invention relates to a contiguous seam efficient filling material. The problem of application of waste rock blocks and coal ash in seam filling is solved. The contiguous seam efficient filling material is composed of, by mass, 84-134 parts of water, 164-174 parts of ordinary portland cement, 0-44 parts of coal ash, 425-452 parts of waste rock blocks and pebbles, 227-291 parts of bank sand, 2.8-5.5 parts of early strength agent and 3.2-3.5 parts of water reducing agents; and the mass parts of the waste rock blocks and the pebbles are 85-452 parts and 0-340 parts correspondingly by total amount of the waste rock blocks and the pebbles. The proper proportion of the waste rock blocks and the pebbles in seam filling is determined through lots of experiments and data analysis. The contiguous seam efficient filling material is wide in material source and low in cost, the pollution discharge problem of mine enterprises can be solved, and material uniaxial compressive strength, slump and the like of the material meet the requirements.
Owner:DATONG COAL MINE GRP
Surface rust preventing treatment process for iron art products
ActiveCN103205751AImprove coating qualityImprove water saving performanceLiquid surface applicatorsSuperimposed coating processProduction lineWater based
The invention relates to a surface rust preventing treatment process for iron art products and provides a novel spraying line production technique. The surface rust preventing treatment process is characterized in that traditional phosphating is replaced by ceramic treatment on a spraying flow production line, common urban tap water is replaced by small cluster water with activity in each washing link during spraying, and common water base degreasing fluid is replaced by small cluster water base degreasing fluid. Compared with traditional phosphating, the method uses non-phosphorus ceramic treatment for pretreatment in prior to nano spaying, and accordingly adhesive force between coating and metal can be increased evidently, and corrosion-resistant time of metal can be prolonged.
Owner:广东鸿图新材料科技有限公司
Separate system controlling sewage and initial rainwater pollution
PendingCN111335437AGuaranteed functionSolve the sewage problemSewerage structuresSewer pipelinesStormwater pollutionSewage
The invention relates to a separate system controlling sewage and initial rainwater pollution. The separate system controlling sewage and initial rainwater pollution comprises a rainwater pipeline, asewage pipeline and separating control units. The rainwater pipeline and the sewage pipeline are parallel. The rainwater pipeline is provided with a plurality of separating control units. Each separating control unit is connected with the sewage pipeline through a separating pipeline. Each separating control unit comprises a separating well, wherein one side of the separating well is provided witha first inlet, the other side of the separating well is provided with a first outlet corresponding to the first inlet, the first inlet and the first outlet are connected with rainwater pipeline sections on the two sides of the separating well correspondingly, and the side, close to the sewage pipeline, of the separating well is provided with a second outlet. Each separating control unit is provided with a passage control unit which is used for controlling the opening degree of the second outlet. The separate system controlling sewage and initial rainwater pollution creatively adopts a rainwater pipeline separating manner and avoids the situation that initial rainwater of rainfall, ground cleaning sewage and mixed discharge of sewage and rainwater pollute natural water.
Owner:NANJING INST OF ENVIRONMENTAL SCI MINIST OF ECOLOGY & ENVIRONMENT OF THE PEOPLES REPUBLIC OF CHINA +1
Haze treatment engineering product
InactiveCN104844307ASolve the sewage problemSolve pollutionOther chemical processesFertilizer mixturesIndustrial waste waterAbsorbent material
The invention discloses a haze treatment engineering product using wastewater as a raw material, according to the method, to be more specific, a high polymer water absorbing material is added into the wastewater rich in organic matters to prepare fertilizer glue, the fertilizer glue is generally prepared by adding 0.1% to 40% by weight of the high polymer absorbent material or natural plant glue into the industrial wastewater rich in the organic matters, and stirring, the fertilizer glue is rich in the plant growth nutrition, and can provide a soil protecting layer, is moisture and fertilizer-maintaining, effectively solves the problems of sewage treatment, can also solve the problems of raise dust in exposure soil, can even adsorb dust floating in the air, and avoids secondary dust rising.
Owner:蒋伟哲
Device and method for recycling phosphorus and magnesium from phosphorus ore magnesium removal liquid
The invention discloses a device and a method for recycling phosphorus and magnesium from phosphorus ore magnesium removal liquid. The device comprises a magnesium removal liquid clarifying tank, a reaction liquid clarifying tank, a high-level reactor, a low-level reactor, a pH (Potential of Hydrogen) detection head, a pH control panel and a centrifugal machine, wherein the magnesium removal liquid clarifying tank is connected with the high-level reactor through a magnesium removal liquid feeding pump and a connecting pipeline; the high-level reactor is internally provided with a high-level reactor stirrer; one side of the reaction liquid clarifying tank is connected with the low-level reactor through a returning pump and a connecting pipeline; the other side of the reaction liquid clarifying tank is connected with a purified liquid pump; and the pH detection head is arranged at outlets of the high-level reactor and the low-level reactor and then is connected to the pH control panel. The method comprises the following steps: after introducing the magnesium removal liquid into the device, controlling reaction conditions of the high-level reactor and the low-level reactor; after carrying out solid-liquid separation and clarification operation, obtaining a magnesium ammonium phosphate hexahydrate product and purified liquid capable of being circularly utilized. Compared with the prior art, the reaction time is short, the purity of the magnesium ammonium phosphate hexahydrate product is improved and wastewater generated in a magnesium removal liquid treatment process can be circularly and repeatedly utilized.
Owner:GUIZHOU KAILIN GRP MINERAL FERTILIZER CO LTD
Double-layer high-speed overhead flyover for cars
A double-layer high-speed overhead flyover for cars is suitable for main roads or secondary main roads. The overhead flyover, corresponding to two directions A and B, is composed of a first bridge floor, a second bridge floor, four ramps, four platforms, and pillars. The overhead flyover is specially-designed for cars and is characterized by miniaturization and low weight, is less in occupied materials and is light in weight and low in cost. The overhead flyover can be manufactured and assembled from steel structures through industrial production in factories, so that a new manufacturing industry entity can be formed. The high-speed overhead flyover achieves single-layer and one-way traffic of cars; according to invention, a high-speed crossroad overhead flyover is linked to a crossroad while a high-speed T-junction overhead flyover is linked to a T-junction. The overhead flyover can create a traffic network without traffic lights for whole city, which would be a wonder of city traffic.
Owner:罗克贤
Drying waste heat reutilizing integration device
ActiveCN111023791AAchieve recyclingHigh degree of automationDrying solid materialsHeating arrangementThermodynamicsSprayer
The invention provides a drying waste heat reutilizing integration device which comprises a drying device (1), a medium treating device (2), a compressor (3), a sprayer (4) and a heat exchanger (6). Awaste gas outlet (13) is formed in the upper portion of the drying device (1). One end of the waste gas outlet (13) is connected with the medium treating device (2). The rear of the medium treating device (2) is connected with the compressor (3). The compressor (3) is connected with the heat exchanger (6) through a pipeline. The outlet end of the compressor (3) is connected with the sprayer (4).A starting heat source (5) is connected to a pipeline between the sprayer (4) and the heat exchanger (6). The heat exchanger (6) is connected with the drying device (1). According to the system, hot wet gas exhausted by the waste gas outlet (13) returns to the drying device again after being compressed, recycling of energy is achieved, the automation degree is high, and the device is environmentally friendly.
Owner:青岛创客智造机械设备有限公司
Method for removing impurity of mother liquid in preparation process of calcium carbonate crystal whisker
ActiveCN101935061AHigh calcium removal efficiencyIncrease the number of cyclesCalcium/strontium/barium carbonatesPolycrystalline material growthChemistryMother liquor
The invention relates to a method for removing impurity of mother liquid in a preparation process of calcium carbonate crystal whisker, comprising the following steps of: (1) adding a barium chloride solid into the mother liquid in the preparation process of calcium carbonate crystal whisker; stirring the mixture to react for 0.5-2h at the normal temperature; and filtering in vacuum to obtain the mother liquid subjected to the removal of sulfate radical; (2) adding a calcium removing agent in the mother liquid subjected to the removal of the sulfate radical; introducing CO2, stirring the mixture to react until a pH value of the mother liquid is 7; stopping aeration, and filtering in vacuum to obtain the mother liquid subjected to the removal of calcium; and (3) adding a flocculating agent with mass concentration of 5 thousandth; stirring, standing and precipitating the mixture; and filtering in vacuum to remove the impurity. The invention has the advantages of simple operation and high impurity removal efficiency.
Owner:QINGHAI INST OF SALT LAKES OF CHINESE ACAD OF SCI
Salt-free dyeing technology adopting ethyl alcohol
The invention relates to the technical field of dyeing of textiles, in particular to a salt-free dyeing technology adopting ethyl alcohol. The dyeing technology is used for dyeing wool fabrics, the salt-free dyeing technology under the ethyl alcohol system is adopted, and a dye dissolution agent accounting for 5%-10% of a to-be-dyed fabric by weight is mixed with an ethyl alcohol solution accounting for 90%-95% of the to-be-dyed fabric by weight; the ethyl alcohol is taken as a dyeing carrier and used for dye conveying and energy transmission, the dye dissolution agent is used for dissolving dye, and the dissolved dye and the ethyl alcohol jointly form a dyeing solution; during dyeing, salt does not need to be added, ultraviolet radiation treatment is adopted, quick dyeing can be achieved,and 5% of water can be used as the dye dissolution agent. By means of the method, the application amount of the water and the salt can be significantly reduced, compared with a traditional technology, the application amount of water for dyeing is reduced by 90%-95%, the ethyl alcohol is recycled, and zero-discharge of dyeing is basically achieved; the dyeing time is shortened by 50%, the dyeing temperature is reduced by 10-20 DEG C, the energy is saved by 30% or above, and the sewage problem of the textile industry is solved by adopting the zero-discharge scheme.
Owner:SHANDONG JINING RUYI WOOLEN TEXTILE CO LTD
Intelligent sewage draining controller for closestools
InactiveCN107419787ASolve the sewage problemSolve hygiene problems in public placesProgramme controlWater closetsMicrocontrollerMicrocomputer
An intelligent sewage controller for toilets, belonging to the technical field of living equipment, comprising a housing, the adsorption device fixed on the housing, function buttons, and an infrared detection sensor. The battery is fixedly installed on the left side of the ejector pin slot, the single-chip controller is fixedly installed on the top of the ejector pin slot, and the first motor and the second motor are fixedly installed on the left and right sides of the ejector pin slot. The present invention has reasonable structure and clear working principle. The sewage controller is fixed on the common toilet tank cover, which is easy to install and effectively solves the sewage of the toilet and the sanitation problems of public places. It can be effectively matched with ordinary toilets and broadens the scope of use of the toilet.
Owner:徐群强
Membrane treatment method for sulfate process titanium dioxide waste acid
The invention discloses a membrane treatment method for sulfate process titanium dioxide waste acid. The concentration of H2SO4 in the waste acid is about 20wt%, the temperature of the waste acid is 60-70 DEG C, the iron content of the waste acid is 50-70g / L, and the waste acid contains other metal ion impurities. The membrane treatment method includes: using heat exchanging to lower the temperature to 35-45 DEG C; filtering the waste acid to remove solid suspended matter; feeding the waste acid obtained after the solid impurities are removed into a membrane separation system to perform separation, and using the clean acid obtained after the membrane separation as the absorption acid to produce concentrated sulfuric acid; mixing the waste acid, containing a large number metal ion impurities, separated from the other side with 98wt% concentrated sulfuric acid to obtain sulfuric acid with the concentration being 50-60wt%; curing the mixed solution, and performing filter pressing and separation to obtain sulfuric acid, wherein the obtained sulfuric acid can be used as the initiating acid of a sulfate process titanium dioxide acidolysis procedure. The membrane method has the advantagesthat an organic membrane is directly used to treat the sulfate process titanium dioxide waste acid, and the method is small in equipment floor space, simple to operate, good in clean acid quality andcapable of reducing waste acid discharge.
Owner:LOMON BILLIONS GRP CO LTD
Recyclable high efficiency filtration water purifier
The invention discloses a recyclable high efficiency filtration water purifier. The recyclable high efficiency filtration water purifier includes a shell, the inner cavity of the shell is provided with a settling tank, the right side of the settling tank is provided with a filter tank, a water storage tank is arranged on the right side of the filter tank, an activated carbon filtration plate and aquartz sand filtration plate are respectively disposed in the inner cavity of the settling tank, and the quartz sand filtration plate is installed above the top of the activated carbon filtration plate, the top at the inner cavity of the settling tank is provided with a filter slot connected to the top at the inner cavity of the filter tank, and the inner cavity of the filter slot is provided with a precision filter, a filtered water source enters the precision filter at the top of the filter tank for filtration and flows into the filter tank, the filtered impurities are collected for treatment by opening a blow-down valve, and through the water level rise in the filter tank, a second valve is opened, the filtered water flows into the water storage tank for use. The recyclable high efficiency filtration water purifier provided by the invention effectively solves the problems of circulating filtration and sewage discharge, effectively improves impurity filtration, and reduces harm to the human body.
Owner:黄永龄
Method for separating glucosamine hydrochloride from Lentinus edodes leftovers
InactiveCN102079762AGood repeatabilityHigh yieldSugar derivativesSugar derivatives preparationSlagFreeze-drying
The invention relates to a method for separating glucosamine hydrochloride from Lentinus edodes leftovers, which comprises the following steps: sequentially hydrolyzing dried Lentinus edodes stipes with sodium hydroxide, and filtering; heating the precipitate under reflux with acetic acid, and centrifugating; and precipitating the supernatant with sodium hydroxide, hydrolyzing with hydrochloric acid, filtering, carrying out vacuum concentration, crystallizing, centrifugating, and carrying out freeze-drying to obtain the glucosamine hydrochloride. The invention has the following advantages: (1) plant-derived mushrooms are used as the raw material, thereby avoiding the defects of the product anaphylaxis, seasonal restrictions to the raw material, incapability of eating for the vegetarianisms and the like in the glucosamine hydrochloride which is made from shrimp and crab shell chitin by the traditional method; (2) the method does not need the pretreatment with acid or alkali, and the raw material dried citric acid slag is directly hydrolyzed, thereby avoiding the problem of sewage caused by pretreatment with acid and alkali; and (3) the hydrolysis time is short, and is only 2.5-3 hours.
Owner:LANGFANG NORMAL UNIV
Mine governance system and governance method
ActiveCN108483527BLow slope valueEasy to irrigateWaste water treatment from quariesClimate change adaptationWater qualityConsumptive water use
The invention discloses a mine treatment system. The system comprises a greening rehabilitation system, a mine side slope rehabilitation device, distribution pipelines, a vegetation planting device, asewage treatment system and a total controller; the greening rehabilitation system comprises a side slope morphology generation module used for generating morphology information of a whole mine sideslope and setting a slope value of the side slope; the mine side slope rehabilitation device comprises a side slope rehabilitation mechanism used for rehabilitating the mine side slope according to aside slope rehabilitation drawing; the distribution pipelines comprise fixing fences and water spraying pipes which are arranged in the fixing fences and provided with rotatable spray-heads; the sewage treatment system comprises a sewage treatment device and a power device used for conveying treated sewage to the water spraying pipes used for vegetation irrigation. According to the system, by planting vegetation on the side slope, the side slope morphology is solidified, the probability of landslides is reduced, through vegetation, the side slope soil quality is improved, and meanwhile, secondary use of polluted water of a mine is achieved, wherein the polluted water of the mine is used for vegetation irrigation after water quality purification, and thus the purposes of polluted water treatment and irrigation water sources are achieved.
Owner:栾彦岭 +9
Biologically active flocculating agent for treating waste water generated in production of vitamin E and preparation method thereof
ActiveCN102351292AEasy to recycleSolve the sewage problemWater/sewage treatment by flocculation/precipitationPhytic acidPotassium permanganate
The invention discloses a biologically active flocculating agent for treating waste water generated in production of vitamin E. The flocculating agent is prepared by the following raw materials by weight: a zeolite carrier 40% to 60%, dried active substances of algae 8% to 30%, calcium hydrate 2% to 10%, phytic acid 0.5% to 3%, aluminum sulfate 1% to 5%, active carbon 2% to 10%, an active material of a high-molecular resin 1% to 7% and diluent of potassium permanganate with a concentration of 1:3000 0.1% to 4%. A preparation method for the flocculating agent is as follows: a desired amount of zeolite is taken and crushed into particles with a fineness of 10 to 80 meshes; a desired amount of dried active substances of algae are taken and crushed into particles with a fineness of 60 to 100 meshes; a desired amount of industrial calcium hydrate is taken and crushed into particles with a fineness of 30 to 60 meshes; a desired amount of active carbon is taken and crushed into particles with a fineness of 60 to 100 meshes; a desired amount of the active material of the high-molecular resin is taken and crushed into particles with a fineness of 30 to 60 meshes; and a desired amount of phytic acid and potassium permanganate (1:3000) are taken; the solids and liquid are uniform mixed; the biologically active flocculating agent is obtained when water content in an obtained solid-liquid mixture is 5 to 10% according to determination. The biologically active flocculating agent provided in the invention has the advantages of high efficiency, cheapness and strong pertinency.
Owner:ZHEJIANG SHUANGLIANG SUNDA ENVIRONMENTAL PROTECTION CO LTD
Formula of precipitation neutralizer for extracting hydroxide from wastewater and extraction method of precipitation neutralizer
ActiveCN104229962ASolve the sewage problemPrevent sudden oxidationWater/sewage treatment by neutralisationWater/sewage treatment by flocculation/precipitationPolyacrylamideSODIUM DODECYL BENZENE SULFONATE
The invention discloses a formula of a precipitation neutralizer for extracting hydroxide from wastewater. The precipitation neutralizer comprises the following components in percentage by mass: 3%-15% of a pH stabilizer, 2%-10% of a flocculant, 1%-8% of an oxidant, 2%-8% of a dispersing agent, 70%-85% of a neutralizer, and 5%-10% of a pH modifier, wherein the pH stabilizer is citric acid; the flocculant is polyacrylamide; the oxidant is hydrogen peroxide; the dispersing agent is sodium dodecyl benzene sulfonate; the neutralizer is ammonium bicarbonate; and the pH modifier is ammonium hydroxide. According to the extraction method, the hydroxide is extracted by sewage treatment, the precipitation neutralizer is capable of effectively processing and neutralizing the pH value of acid sewage, the sediment is extracted as a high-purity hydroxide product, and the processed sewage can also be recycled after being filtered, so that the problem of sewage drainage is solved, and the extract becomes a hydroxide product which can be marked and used.
Owner:姚世华
Method for using red mud as ladle or tundish covering agent
The invention discloses a method for using red mud as a ladle covering agent, which obtains a ladle or a tundish coating agent by carrying out magnetic separation to the red mud to remove the Fe2O3 and TiO2 in the red mud. The invention proposes a completely new concept for using the red mud, which namely removes ineffective components at first, and then fully uses all the rest effective components; the effective operating factor can achieve more than 85 percent. The method for using red mud as the ladle covering agent solves the application of the waste-red mud generated during the process of an alumina production enterprise to extract the alumina by bauxite mines, uses the waste as the ladle covering agent, not only has low cost, but also solves the pollution discharge problem of an alumina factory; more important, the method for using red mud as the ladle covering agent protects the environment and saves resources.
Owner:武汉振海科技有限公司
Breeding pond for giant salamanders
InactiveCN108651378ATimely and effective cleaningControl water levelAnimal husbandryGiant salamanderSewage
The invention discloses a breeding pond for giant salamanders, and belongs to the technical field of giant salamander breeding. The front and rear ends of the top of a pond body are laid with stone slabs respectively, a cloth clamping rod is arranged between the left and right side walls of the pond body and connected with one end of sunshade cloth, the other end of the sunshade cloth winds a roller shaft; the pond body is divided into two rows of breeding-pond single bodies arrayed in a grid shape by partition plates, wherein the first partition plates between the breeding-pond single bodiesin the front row and the breeding-pond single bodies in the rear row are provided with windows and door plates, the bottom surface of each breeding-pond single body is a V-shaped slope surface, a sewage drainage pipe is arranged at a crack of each V-shaped slope surface, sewage drainage holes are formed in the pipe body of each sewage drainage pipe, each sewage drainage pipe penetrates through thepond wall and is rotatably connected with a right-angle elbow pipe, and the top of each right-angle elbow pipe is sleeved with an inverted Y-shaped overflow pipe; the upper portion of the pond body is further provided with two water inlet pipes, and arc plates are arranged below the water inlet pipes. The breeding pond is simple, practical, convenient to operate and capable of saving the cost.
Owner:竹溪众创农村电商孵化器有限公司
A flocculant used for sewage treatment in Chinese patent medicine production enterprises and its preparation method
ActiveCN102887581BNot easy to recycleBiodegradableOther chemical processesWater/sewage treatment by flocculation/precipitationPhytic acidChinese patent medicine
Owner:JIANGSU SHANGDA WATER AFFAIR
water heater
ActiveCN107303447BShorten the cleaning cycleImprove water qualityFluid heatersMoving filtering element filtersWater flowSewage
Owner:QINGDAO HAIER NEW ENERGY ELECTRIC APPLIANCE +1
Preparation method of triethylene glycol dibenzoate
ActiveCN103483198ASolve the sewage problemEasy to separatePreparation by ester-hydroxy reactionEthyl phosphateDiethylene glycol
The invention provides a preparation method of triethylene glycol dibenzoate represented by the structural formula (I). The method includes the steps: in the presence of a catalyst containing anhydrous potassium carbonate, a reaction of triethylene glycol represented by the structural formula (II) and benzoic acid ester PhCOOR is carried out, and a product including triethylene glycol dibenzoate represented by the structural formula (I) and a corresponding alcohol HOR is generated, wherein R is methyl or ethyl. The method of the invention is conducive to environmental protection; and the product has high yield and good purity.
Owner:CHINA PETROLEUM & CHEM CORP +1
Construction site toilet
PendingCN114856263ASolve the problem of water supplySolve the sewage problemWater closetsFlushing devicesWater sourceSewage outfall
The invention provides a construction site toilet which comprises a modular box body, a squatting pan and a water supply and drainage assembly are installed in the modular box body, and the water supply and drainage assembly comprises a sewage pump and an electromagnetic water valve. A sewage outlet of the squatting pan is connected with one end of the trap, the other end of the trap is connected with an inlet of the sewage pump, and an outlet of the sewage pump is connected with the sewage discharge pipe to discharge sewage. When the electromagnetic water valve is opened, the pressure water source is sprayed out from the water spraying opening, and dirt in the pit is flushed into the trap. The sewage pump is started to suck and smash the sewage and then discharge the sewage, after the sewage pump is stopped, the electromagnetic water valve is opened again to flush and moisten the wall in the pit for the second time, flushing water can be accumulated at the trap, odor generated by the sewage is sealed in the trap, and flushing of the toilet is completed. Therefore, the construction site toilet solves the problems of water supply and pollution discharge of the construction site toilet, so that the construction site environment meets the requirements of safe and civilized construction.
Owner:CHINA CONSTR SCI & TECH CO LTD +1
Concentrated draining anti-freezing train toilet
Owner:郝玉寿 +1
Preparation method of early-strength high-efficiency alkali-free accelerator
InactiveCN111995283AImprove work efficiencyPromoting Environmental Sustainable Development and Tunnel ConstructionAluminium saltsEnvironmental chemistry
The invention discloses a preparation method of an early-strength high-efficiency alkali-free accelerator. The formula of the accelerator comprises basalt fibers, fluosilicic acid, light calcined magnesia, aluminum sulfate, polyacrylamide and triethanolamine, wherein the content of the basalt fibers is 3-5 parts, the content of the fluosilicic acid is 100 parts and is 10%-20%, the content of the light calcined magnesia is 10 parts and is not lower than 90%, the content of the aluminum sulfate is 40-50 parts, the content of the polyacrylamide is 1-2 parts, and the content of the triethanolamineis 3-5 parts. The fluosilicic acid in the raw materials is fluosilicic acid wastewater generated in the production process of a phosphate fertilizer plant, the fluosilicic acid wastewater of a phosphate fertilizer plant is subjected to waste utilization, so that the method solves the pollution discharge problem of phosphate fertilizer plants and is more environment-friendly. Meanwhile, the sprayed concrete strength and interlayer binding force are enhanced by adding basalt fibers into the accelerator, the working efficiency of tunnel sprayed concrete construction is enhanced, and the accelerator has far-reaching meanings for promoting sustainable development of China's environment and tunnel construction.
Owner:GUIZHOU DR SHI TECH
Method for removing impurity of mother liquid in preparation process of calcium carbonate crystal whisker
ActiveCN101935061BEfficient removalAchieve separationCalcium/strontium/barium carbonatesPolycrystalline material growthBarium dichlorideSulfate radicals
The invention relates to a method for removing impurity of mother liquid in a preparation process of calcium carbonate crystal whisker, comprising the following steps of: (1) adding a barium chloride solid into the mother liquid in the preparation process of calcium carbonate crystal whisker; stirring the mixture to react for 0.5-2h at the normal temperature; and filtering in vacuum to obtain themother liquid subjected to the removal of sulfate radical; (2) adding a calcium removing agent in the mother liquid subjected to the removal of the sulfate radical; introducing CO2, stirring the mixture to react until a pH value of the mother liquid is 7; stopping aeration, and filtering in vacuum to obtain the mother liquid subjected to the removal of calcium; and (3) adding a flocculating agentwith mass concentration of 5 thousandth; stirring, standing and precipitating the mixture; and filtering in vacuum to remove the impurity. The invention has the advantages of simple operation and high impurity removal efficiency.
Owner:QINGHAI INST OF SALT LAKES OF CHINESE ACAD OF SCI
Comprehensive doskin sewage treatment equipment
PendingCN110451712ASolve the sewage problemReasonable structureTreatment involving filtrationMultistage water/sewage treatmentChemical oxygen demandUltrafiltration
The invention discloses comprehensive doskin sewage treatment equipment which comprises an air flotation purification tank, a sand filtering tank, an acid precipitation overflowing tank, an ultrafiltration device, a reverse osmosis device, an evaporation concentration device and a drying device, wherein the air flotation purification tank, the sand filtering tank and the acid precipitation overflowing tank are sequentially connected; an overflowing clear liquid of the acid precipitation overflowing tank is fed into the ultrafiltration device through a pipeline; a sedimentation concentrated liquid of the acid precipitation overflowing tank is fed into the reverse osmosis device through a pipeline; the clear liquid of the ultrafiltration device is discharged; filter residues of the ultrafiltration device is fed into the evaporation concentration device; the evaporation concentration device is connected with the reverse osmosis device; and the reverse osmosis device is connected with thedrying device. The equipment is reasonable in structure, sericin can be recycled, the sericin recycling rate is up to 75% or greater, meanwhile, the content of the sericin in the sewage and the COD (chemical oxygen demand) value can be greatly reduced, national second-level discharge standards can be met, both the problem of doskin sewage can be solved and resource recycling and utilization can beachieved, and a good use effect can be achieved.
Owner:苏州先蚕丝绸生物科技有限公司
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