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57results about How to "Solve water pollution" patented technology

DMAC (dimethylacetamide) or DMF (dimethyl formamide) waste liquid four-tower double-effect rectification system and recovery method thereof

The invention discloses a DMAC (dimethylacetamide) or DMF (dimethyl formamide) waste liquid four-tower double-effect rectification system which comprises a first concentration tower, a second concentration tower, a rectification tower and a deacidifying tower. The invention further discloses a recovery method of the DMAC or DMF waste liquid four-tower double-effect rectification system. The method includes the steps: recovering and treating DMAC or DMF waste liquid; recovering and treating high-boiling objects and solid objects; recycling water; recycling steam. According to the invention, the DMAC or DMF waste is concentrated at the temperature less than 100 DEG C, distillation is performed at the temperature less than 100 DEG C, deacidification is performed at the temperature less than 105 DEG C, the whole process is completely performed at the low temperature, the DMAC or the DMF is not basically decomposed, and the finished product recovery rate of the DMAC or the DMF is higher than 99%. The four-tower double-effect rectification system solves the problems of solid waste pollution and air pollution and creates fine economic benefits, and environments are protected.
Owner:常州冀德环保科技有限公司

Seven-tower five-effect rectification system for DMAC (N,N-dimethyl acetamide) or DMF (N,N-dimethylformamide) waste liquid and recovery method of seven-tower five-effect rectification system

The invention discloses a seven-tower five-effect rectification system for DMAC (N,N-dimethyl acetamide) or DMF (N,N-dimethylformamide) waste liquid. The system comprises a first concentrating tower, a second concentrating tower, a third concentrating tower, a fourth concentrating tower, a fifth concentrating tower, a rectifying tower and a deacidification tower. The invention also discloses a recovery method of the seven-tower five-effect rectification system for the DMAC or DMF waste liquid, and the recovery method comprises the steps of recovery treatment of the DMAC and DMF waste liquid, recovery treatment of high-boiling products and solids, recovery treatment of water and recovery treatment of steam. The DMAC and DMF waste liquid is concentrated at a temperature within 100 DEG C, and then is subjected to rectification and deacidification at a temperature within 105 DEG C, the whole process is performed at a low temperature, DMAC and DMF cannot be decomposed basically, the recovery rate of DMAC and DMF finished products is more than 99%, and meanwhile, the content of dimethylamine in tower top water is less than 30ppm, so that the problem of water pollution is solved.
Owner:常州冀德环保科技有限公司

BX high-end three-dimensional integrated solid-liquid synchronous deeply sewage-treating device and manufacturing method

The invention relates to a BX high-end three-dimensional integrated solid-liquid synchronous deeply sewage-treating device and a manufacturing method. The device is characterized by forming a set of complete sewage treating system device by three-dimensionally combining power transmission, double-vortex gearshift, dosing neutralizing, oil-water separation, aeration biochemical treatment, solid-liquid centrifugal separation, sweeping de-sliming, sludge wiping, overhead storage, biologic gnawing, deep physical absorption, malnutrition reduction, PH value, heavy metal (other pollutants), turbidity self-detection, cross circulation backwashing, sterilization and disinfection, water purification and draining, overhead bearing support and automatic control system. The energy consumption is low, the running cost is low and the industrial wastewater, rural sewage, municipal (other) sewage and reclaimed water are locally intensively treated nearby, so that the requirements for standard emission and resource reutilization are met; the device has obvious effects of cleaning production, capacity promotion and effect enhancement; the device has huge national benefit or public benefit at the aspects of water resource shortage, water pollution, sustainable economic development maintenance and promotion for energy saving and emission reduction.
Owner:白山市百祥环保科技开发有限公司

Viscose wastewater resourceful treatment method

The invention provides a viscose wastewater resourceful treatment method, which comprises the following steps: sequentially carrying out neutralization aeration, coagulating sedimentation, advanced oxidation, primary softening clarification, ultrafiltration, reverse osmosis, concentrated water softening clarification, filtration, ion exchange, concentrated water reverse osmosis, high-pressure reverse osmosis, forward osmosis, evaporative crystallization, potassium sulfate conversion, sodium chloride crystallization and mother liquor drying treatment on viscose wastewater so as to achieve reuseof all the wastewater and produce potassium sulfate and sodium chloride crystalline salts. According to the method, zero discharge of viscose wastewater is realized, and water is completely recycledthrough membrane concentration and evaporative crystallization so as to avoid pollution to the external environment; multi-stage reverse osmosis and forward osmosis processes are comprehensively utilized, so that the load of a thermal evaporation stage is greatly reduced, the method has the advantages of low energy consumption and high efficiency, and the operation and investment cost of the system can be reduced; and the produced sodium sulfate is converted into potassium sulfate with high value, and the potassium sulfate can be used in the chemical fertilizer industry, so that the problem ofwater pollution of fiber production enterprises is solved, and high economic value can be brought.
Owner:GREENTECH ENVIRONMENTAL CO LTD

Method for electrically adsorbing metal ions through porous carbon material prepared from PVC waste plastic

The invention relates to a method for electrically adsorbing metal ions through a porous carbon material prepared from PVC waste plastic and belongs to the technical fields of the treatment and conversion of waste plastic and the electro-adsorption water treatment. The method comprises the following steps: (1) swelling the waste PVC plastic in a strong polar solvent, adding inorganic strong alkaliand a doping source, grinding at the room temperature for a certain period of time, so as to obtain a porous doped carbon material; (2) carrying out high-temperature roasting on a precursor, washingwith water to remove inorganic salt, and carrying out centrifugation, drying and the like, so as to obtain doped porous carbon which is applied to ionic adsorption and is prepared based on the PVC waste plastic; and (3) preparing an electrically adsorbed electrode material from the prepared porous doped carbon material, and processing metal ions by virtue of the electrode material, wherein the adsorption volume of each metal ion is more than 50mg/g. The invention provides a simple, clean and environment-friendly treatment method for the waste PVC plastic, and the treatment of the metal ions isrealized by virtue of an electro-adsorption technique.
Owner:BEIJING UNIV OF CHEM TECH

Excrement and urine separating waterless toilet and use method thereof

ActiveCN104207712ASolve water waste and energy wasteReduce processing costsBathroom accessoriesFertilizerBiological product
The invention discloses an excrement and urine separating waterless toilet and a use method thereof. The toilet comprises a urinal and a closet pan, wherein the urinal comprises a urine supporting bag and a urine bracket; the urine supporting bag is fixed at the edge of the lower surface of the urine bracket; the closet pan comprises an excrement supporting bag and an excrement bracket; the excrement supporting bag is fixed at the edge of the lower surface of the excrement bracket; certain widths are formed at edges of the urine bracket and the excrement bracket; when the urine bracket is combined with the excrement bracket, the urine bracket and the excrement bracket can be exactly laid at the edge of the opening of a flush toilet. Before defecation, excrement and urine bags respectively sleeve the excrement and urine brackets and are erected on the flush toilet. After urinating, the urine bag is tied, after defecating, the excrement bag is tied, toilet paper and antisepsis paper are together put into an excrement outer bag containing adsorbent, and then the bag is sealed. Bagged excrement and urine can be stored for a long time, and can be used for producing fertilizer, biological products, feed and marsh gas. The excrement and urine separating waterless toilet realizes excrement and urine separation, and solves the problem caused by flushing toilet by water, and the existing flush toilet does not need to be transformed.
Owner:CHANGCHUN INST OF APPLIED CHEMISTRY - CHINESE ACAD OF SCI

Complex enzyme preparation and application in producing diosgenin

The invention discloses a complex enzyme preparation and application thereof in producing diosgenin. The complex enzyme preparation comprises an I-type complex enzyme preparation and an II-type complex enzyme preparation, wherein the I-type complex enzyme preparation comprises pectinase, cellulose, xylanase, hemicellulase and tannase; the II-type complex enzyme preparation comprises glucose and beta-glucuroide. The application of the complex enzyme preparation in producing diosgenin comprises the following steps of pretreating materials; carrying out primary hydrolysis with the I-type complexenzyme preparation; carrying out secondary hydrolysis with the II-type complex enzyme preparation; filtering the material liquid to enable solid-liquid separation; carrying out acidolysis, water-washable acid and filter-press on a solid product, drying to obtain a saponin hydrolysate; and then extracting and crystallizing according to the traditional process of saponin extraction to obtain a saponin finished product. The diosgenin produced by using the complex enzyme preparation can promote the release of active ingredients of turmeric, improve the yield, reduce the total use level of acid bymore than 70% compared with the traditional process, recycle pollutants-waste sugar liquid at the same time, effectively solve the problem of water pollution in producing the diosgenin, decrease the total amount of the pollutants by more than 85% and reduce the waste discharge of diosgenin production enterprises by 40%.
Owner:苏州盛泽科技创业园发展有限公司

Slice conveying line and conveying system using same

The invention relates to a slice conveying line and a conveying system using the same. The slice conveying line comprises an upper slice conveying device, a lower slice conveying device, rear elevators and front elevators. The rear elevators are used for conveying unloaded slice trays to corresponding slicing machines and outputting slice trays loaded with slices from the slicing machines. The front elevators are used for conveying the slice trays loaded with the slices to corresponding slice laminating machines and outputting the unloaded slice trays from the slice laminating machines. A first upper transplanting mechanism is arranged between the upper slice conveying device and the rear elevators, and a first lower transplanting mechanism is arranged between the lower slice conveying device and the rear elevators. A second upper transplanting mechanism is arranged between the upper slice conveying device and the front elevators, and a second lower transplanting mechanism is arranged between the lower slice conveying device and the front elevators. The slice conveying line and the conveying system using the same solve the problems that the labor intensity is high and slices can be possibly polluted by moisture due to manual slicing when the slices are transferred between the slicing machines and the slice laminating machines in the prior art.
Owner:CAMALUOYANGELECTROMECHANIC

Assembled folding feces and urine separation toilet bowl and use method thereof

Disclosed are an assembled folding feces and urine separation toilet bowl and a use method thereof. The assembled folding feces and urine separation toilet bowl comprises a toilet bowl surface, a feces pool supporting bag, a toilet bowl opening, a rotating shaft, a feces supporting frame, a urine supporting frame, a cushion, four supporting legs, four mounting holes and a urinal supporting bag, the toilet bowl surface is of an axially symmetric structure, and the four mounting holes are used for fixing the supporting legs. A urine bag sleeves a urinal supporting frame, urination can be finished, and the urine bag and a feces bag sleeve a urinal and a feces pool supporting frame respectively, so that defecation can be finished. The urine bag is packed after urination, the packed feces bag, toilet paper and disinfectant tissues are placed into an outer feces bag containing adsorbing agents after defecation, the outer feces bag is sealed, and bagged feces and urine can be stored for a long time and can be used for producing fertilizers, biological products, feed, methane and the like. Water and a special space are omitted, and the toilet bowl is small in size, light in weight, convenient to convey and distribute and simple to use and can be directly used for a family without a toilet, an earthquake stricken area, a flood stricken area and emergency water failure.
Owner:CHANGCHUN INST OF APPLIED CHEMISTRY - CHINESE ACAD OF SCI

Biomass carbonization burner

The invention provides a biomass carbonization burner, which comprises a first carbonization furnace and a second carbonization furnace, wherein a purifier is communicated between the first and second carbonization furnaces through a pipeline; an inner cavity of the purifier is communicated with the upper part of an inner cavity of the first carbonization furnace through a first pipeline, is communicated with the upper part of an inner cavity of the second carbonization furnace through an eighth pipeline, and is communicated with a first burning chamber through a second pipeline; the inner upper part of the first burning chamber is communicated with the lower part of the inner cavity of the second carbonization furnace sequentially through a fourth pipeline and a ninth pipeline, and is communicated with the lower part of the inner cavity of the first carbonization furnace sequentially through the fourth pipeline and a sixth pipeline; the inner upper part of the first carbonization furnace is further communicated with a first dust removal device through a third pipeline; the dust removal device is further communicated with the upper part of the inner cavity of the second carbonization furnace. According to the biomass carbonization burner, atmospheric pollution caused by emission of wood gas can be avoided, the carbonization furnaces can also be heated by virtue of heat energy generated by burning of the wood gas, and in addition, the technical problem of blockage of various pipelines by wood tar is solved.
Owner:雷连净

Complex microbial inoculant for blue-green algae inhibition and preparation method and application thereof

The invention discloses a complex microbial inoculant for inhibiting blue-green algae and a preparation method and application of the complex microbial inoculant. The complex microbial inoculant for inhibiting blue-green algae is prepared from the following raw materials in parts by mass: 40-55 parts of compound bacillus, 10-25 parts of blue-green algae inhibiting bio-enzyme, 25-30 parts of photosynthetic bacteria and 10-25 parts of probiotics flora. The preparation method of the complex microbial inoculant for blue-green algae inhibition comprises the following steps: respectively carrying out fermentation culture on compound bacillus, photosynthetic bacteria and probiotics to obtain respective bacterial solutions, and uniformly mixing the bacterial solutions with blue-green algae inhibition bio-enzyme in parts by mass to obtain the complex microbial inoculant for blue-green algae inhibition. The complex microbial inoculant can inhibit the growth of blue-green algae, the probiotic flora can synchronously solve the problem of water quality pollution caused by blue-green algae death or decomposition, the preparation process is simple and easy to implement, the cost is low, secondarypollution is avoided, and the complex microbial inoculant has good application prospects and market prospects.
Owner:合肥市东方美捷分子材料技术有限公司 +1

Suit for children to go to toilet during outing and using method thereof

The invention relates to a suit for children to go to toilet during outing and a using method of the suit. The suit comprises a fluid guide device, a box-type squatting pan, a urine bag and excrement outer bags, wherein the fluid guide device and the box-type squatting pan can be repeatedly used; the urine bag is disposable and is filled with water absorbents; the excrement outer bags are provided with self sealing openings; each excrement outer bag comprises an excrement bag containing water absorbents, adsorbents, toilet paper and a disinfection paper towel; the fluid guide device, the urine bag and the excrement outer bags are all placed into a box body; the box body is covered with a box cover. Before urinating is carried out, the fluid guide device is sleeved with the urine bag, and an opening of the urine bag is tied after urinating is carried out; before defecating is carried out, the box-type squatting pan formed by splicing the box body and the box cover is sleeved with one excrement bag, an opening of the excrement bag is tied after defecating is carried out, the excrement bag is placed into the excrement outer bag containing the adsorbents, and an opening of the excrement outer bag is sealed. The bagged excrement and urine can be thrown into a nearby trash can or be taken back home to be processed. The suit does not occupy special space, is small in size, light in weight, convenient to carry and simple in using method, solves the problem of foul smells and the problems of cross infections, water pollution and environmental pollution, and is particularly suitable for the children during outgoing.
Owner:CHANGCHUN INST OF APPLIED CHEMISTRY - CHINESE ACAD OF SCI

Dialysis water endotoxin filter

The invention relates to the technical field of hematodialysis devices, discloses a dialysis water endotoxin filter and aims at overcoming the defect that existing dialysis water is possibly polluted before the dialysis water flows into a dialysis machine. The dialysis water endotoxin filter comprises a housing, wherein a first ultra-filter membrane tow and a second ultra-filter membrane tow which are mutually independent are arranged in the housing, an opening of the first ultra-filter membrane tow is fixed at the water inlet end of the housing through a sealing adhesive, an opening of the second ultra-filter membrane tow is fixed to the water outlet end of the housing through a sealing adhesive, an airtight space is formed inside the housing through sealing of the sealing adhesive at the two ends, a water inlet end cap and a water outlet end cap are installed at the water inlet end and the water outlet end of the housing respectively, the water inlet end cap and the water inlet end of the housing form a water inlet cavity, the water outlet end cap and the water outlet end of the housing form a water outlet cavity, and the water inlet end cap and the water outlet end cap are respectively provided with a water inlet connecting pipe and a water outlet connecting pipe. The dialysis water endotoxin filter is simple in structure, convenient to install and good in filtering effect, and the quality of dialysis water is guaranteed through a pre-filter of a dialysis machine.
Owner:江苏关怀医疗科技有限公司

Portable foldable feces and urine separation squatting pan and using method thereof

The invention relates to a portable folding excrement and urine separation squatting pan and a use method thereof, relates to the field of public health, solves the problem of toilet going difficulty when people go out, and realizes the excrement and urine separation. The portable folding excrement and urine separation squatting pan comprises two folding boxes, wherein before urinating, a urine bag with water absorbents sheathes the inside of each folding box; before defecation, the two folding boxes are placed side by side, then, the urine bag with the water absorbents sheathes the inside of the folding box in the front row, and an excrement bag sheaths the inside of the folding box in the back row. After the urinating, an opening of the urine bag is bound, after the defecation, the excrement bag subjected to opening binding, toilet paper and antisepsis paper are together placed into an excrement external bag with adsorbents, and the opening of the excrement external bag is sealed. The bagged excrement and urine is thrown away in a handy garbage can or is taken home for treatment. The portable folding excrement and urine separation squatting pan and the use method have the advantages that the environment pollution caused by urinating and defecation in any place is avoided, the size is small, the weight is light, the carrying is convenient, the use is simple, in addition, the environment cannot be polluted, the problem that a toilet cannot be found or people stand in a long queue for going to the toilet is effectively solved, and the problem of toilet going difficult of children while going out is solved.
Owner:CHANGCHUN INST OF APPLIED CHEMISTRY - CHINESE ACAD OF SCI

MVR (mechanical vapor recompression) concentration and rectification system and recovery method for DMAC (dimethylacetamide) waste liquid

The invention relates to the technical field of DMAC waste liquid treatment, in particular to a DMAC waste liquid MVR concentration and rectification system which comprises a first concentration tower, a second concentration tower, a rectification tower, a deacidification tower, a flash tank, a feed heater, a condenser, a DMAC reflux tank and a DMAC finished product tank. A material outlet of a waste liquid tank in the tank area is connected with a material inlet of the first concentration tower through a waste liquid pump, a material outlet of the first concentration tower is connected with a material inlet of the second concentration tower through a discharging pump, and a material outlet of the second concentration tower is connected with a liquid phase material inlet of the flash tank through the discharging pump. According to the invention, DMAC is concentrated within 100 DEG C, and rectification and deacidification are carried out within 100 DEG C, the whole process is completely carried out at a low temperature, DMAC is basically not decomposed, and the final DMAC decomposed product dimethylamine is extremely low in content in the atmosphere, meets the emission standard and can be discharged up to the standard; and the content in water at the top of the tower is less than 40ppm, so that the water can be reused in a production line, and air pollution and water pollution are thoroughly solved.
Owner:常州冀德环保科技有限公司

Land-saving and environment-friendly municipal complex integrating sewage treatment plant and garbage transfer station

The invention discloses a land-saving and environment-friendly municipal complex integrating a sewage treatment plant and a garbage transfer station. The land-saving and environmental-friendly municipal complex is divided into three three-dimensional layers from top to bottom: a ground floor, a negative first floor, and a negative second floor, wherein a parking lot and an urban leisure park are arranged on top of the ground floor; a sewage treatment operation area and a garbage discharge area are arranged on the negative first floor; a sewage treatment system area located below the sewage treatment operation area and a garbage compression transfer area located below the garbage discharge area are arranged on the negative second floor; and the floors are separated by load-bearing floors, the thickness of covering soil of the ground floor 1 is 1.5 m, and the design load range of ground floor 1 is 30-35 KN/m2. According to the land-saving and environmental-friendly municipal complex, thedomestic garbage transfer station is combined with the underground sewage treatment plant to fully utilize and share underground space resources, compared with existing sewage treatment plants and garbage transfer stations, more land resources is saved by land-saving and environmental-friendly municipal complex, the land-saving and environmental-friendly municipal complex is more environmentallyfriendly, and the investment of integrated construction is less.
Owner:HARBIN INST OF TECH SHENZHEN GRADUATE SCHOOL

Remote monitoring system and method for non-negative pressure water supply equipment

The invention discloses a non-negative pressure water supply equipment remote monitoring system and method, and belongs to the technical field of water supply equipment monitoring. The system comprises a non-negative pressure water supply equipment module, a user data acquisition module, a municipal data monitoring module, a system monitoring module and a remote monitoring and early warning module, the output end of the non-negative pressure water supply equipment module is connected with the input ends of the user data acquisition module, the municipal data monitoring module and the system monitoring module; the output ends of the user data acquisition module, the municipal data monitoring module and the system monitoring module are connected with the input end of the remote monitoring and early warning module; the problem of water quality pollution of a steady flow compensator under non-negative pressure water supply equipment can be solved, the problem of water quality pollution is further optimized while secondary pollution of a traditional variable-frequency constant-pressure water supply system is avoided, and it is guaranteed that the water quality is good while the labor efficiency is guaranteed as much as possible.
Owner:江苏迈科道环境科技有限公司
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