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47results about How to "Has a removal effect" patented technology

Method for treating cuprammonia complex wastewater through electro-catalysis method

The invention discloses a method for treating cuprammonia complex wastewater through an electro-catalysis method. The method comprises the steps of taking a chlorine evolution electrode as an anode, taking a titanium mesh as a cathode, pumping in cuprammonia complex wastewater, performing electrolytic catalytic treatment on the cuprammonia complex wastewater, and directly discharging the treated wastewater or enabling the treated wastewater to enter follow-up treatment. The method for treating cuprammonia complex wastewater through the electro-catalysis method, provided by the invention has nitrogen removal efficiency to high-concentration cuprammonia complex wastewater, and under a certain condition, the treating efficiency is close to 100 percent, so as to realize the direct discharge or reuse of the cuprammonia complex wastewater. Meanwhile, both organic matters and chloridion existing in a treatment process can be removed to some degree. In addition, most of the cuprammonia complex wastewater is alkaline, an electrolytic method has no special requirements on pH of the wastewater, and electrolysis can be directly performed under an alkaline condition, so that acid required to be added during an actual treatment process is reduced, and therefore, other chemical reagents are not needed to be added in the whole treatment process of the electrolytic method, and the problems of secondary pollution and cost can be effectively avoided.
Owner:SHAANXI UNIV OF SCI & TECH +1

Photocatalytic disinfection reactor used for disinfecting reclaimed water and rainwater, photocatalysis material and preparation method thereof, application and application method thereof

The invention discloses a photocatalytic disinfection reactor used for disinfecting reclaimed water and rainwater, a photocatalysis material and a preparation method thereof, an application and an application method thereof. The photocatalytic disinfection reactor comprises a sterilizer case and a disinfection reaction zone. An inlet pipe and an outlet pipe are arranged on the sterilizer case, the sterilizer case comprises a quartz cannula and a stainless steel outer sleeve; the disinfection reaction zone is an annular space formed by between the quartz cannula and the stainless steel outer sleeve, the vertical separator plates are arranged in a disinfection reaction zone every 120mm, the active carbon fiber (ACF) is fixed in the vertical separator plate for loading the nano TiO2 photocatalysis material; a heat suction/radiation fan is arranged at one end of the quartz cannula, and an ultraviolet lamp is arranged in the quartz cannula. On one hand, bacteria in reclaimed water and rainwater can be effectively inactivated, on the other hand, the operation and management of the reactor are convenient, the reactor is safe and reliable, impact and load by a certain water volume can be adapted, in addition, the disinfection reactor has removal effect to an organic matter in water, and safety risk of organism due to bacteria in reclaimed water and rainwater can be avoided.
Owner:NANJING UNIV OF TECH

Attapulgite refrigerator deodorization particle and preparation method

The invention discloses an attapulgite rod refrigerator deodorization particle and a preparation method, and belongs to the technical field of attapulgite. The particle is prepared from the following ingredients: high-viscosity attapulgite clay, pasty attapulgite clay, thermally modified attapulgite clay, activated carbon, white carbon black, folium artemisiae argyi, rhizoma atractylodis, licorice root, rhizome of acorus calamus, clove oil, tea tree essential oil and herba menthae essential oil. The preparation method comprises the following steps: weighing, smashing and mixing the traditional Chinese medicines to obtain a traditional Chinese medicine mixture, and extracting in a Soxhlet extractor to obtain extracting solution; mixing and evenly stirring the high-viscosity attapulgite clay, the pasty attapulgite clay, the thermally modified attapulgite clay and the activated carbon, then, adding the extracting solution and the essential oil into mixed materials, evenly stirring and applying ultrasound; adding the white carbon black into the mixture, drying after evenly mixing, and carrying out granulation to obtain the attapulgite refrigerator deodorization particle. The attapulgite refrigerator deodorization particle has an efficient deodorization effect and a certain sterilizing effect. The preparation method is simple and practicable, and has a good application value.
Owner:ANHUI BOSHUO TECH

Cadmium removing adsorbent for marine products and preparation method of cadmium removing adsorbent

The invention discloses a cadmium removing adsorbent for marine products and a preparation method of the cadmium removing adsorbent. The cadmium removing adsorbent for the marine products is preparedfrom the following raw materials in part by weight: 20-30 parts of modified silica powder, 50-70 parts of fish bone meal, 25-50 parts of modified shell powder, 15-30 parts of shrimp shell powder, 10-30 parts of a complexing agent, 3-5 parts of sodium carbonate and 200-400 parts of a solvent. The invention further provides the preparation method of the cadmium removing adsorbent for the marine products. The method comprises the following steps: mixing the raw materials, drying the raw materials at 70-90 DEG C and grinding the raw materials into 30-50 meshes after drying. When the prepared cadmium removing adsorbent for the marine products is used for removing cadmium from the marine products, the marine products are not needed to be ground, and the cadmium removing rate is high; besides, daily domestic wastes such as shells, fish bones, shrimp shells and the like are recycled and turned into valuables, which is good for environmental protection and reduces the cost; meanwhile, the adsorbent has a certain removal effect on arsenic while effectively adsorbing cadmium.
Owner:MARINE FISHERIES RES INST OF ZHEJIANG

Method for treating copper-containing and chromium-containing industrial wastewater by applying bacterium detoxification effect

The invention belongs to the technical field of ecological restoration, and discloses a method for treating copper-containing and chromium-containing industrial wastewater by applying a bacterium detoxification effect. The method comprises the following steps: carrying out amplification culture on bacillus cereus and then carrying out centrifugal separation to obtain an active microbial agent; andputting the obtained active microbial agent into industrial wastewater containing chromium and copper for reaction treatment. According to the method, bacillus cereus is used for treating the wastewater containing hexavalent chromium in a copper-containing environment, reduction of hexavalent chromium and immobilization of trivalent chromium can be remarkably promoted without adding extra nutrients, the removal rate of hexavalent chromium can reach 97.6%, and the removal rate of total chromium can reach 90.3%; and meanwhile, the method has a certain removing effect on other metal ions. According to the method, nutrients do not need to be additionally added, secondary pollution does not exist, the reaction process is carried out at the room temperature, operation is easy and convenient, and the cost is greatly reduced.
Owner:佛山经纬纳科环境科技有限公司

Water-driven flue gas purification device for ship

The invention relates to a water-driven flue gas purification device for a ship. According to the technical scheme of the water-driven flue gas purification device, the purification device consists of a fan bottom plate (1), a water outlet pipe (2), a water-driven fan (3), a spray water return pipe (4), a mounting plate (5), a spray unit (6), a filter drum (7), a wire mesh (8), a shell (9), a bracket (10), a spray water supply pipe (11), a water inlet pipe (12) and a shutter (13). One end of the water inlet pipe (12) is connected with a water inlet opening of the water-driven fan (3); the other end of the water inlet pipe (12) passes through the shell (9) to be externally connected with a high-pressure water source; one end of the water outlet pipe (2) is connected with a water outlet opening of the water-driven fan (3); the other end of the water outlet pipe (2) passes through the shell (9). One end of the spray water supply pipe (11) is connected with the water inlet pipe (12); the other end of the spray water supply pipe (11) is connected with the spray unit (6); one end of the spray water return pipe (4) is connected with the spray unit (6); the other end of the spray water return pipe (4) is connected with the water outlet pipe (2). The water-driven flue gas purification device has advantages that the purification efficiency is high, a power source is reliable, the in-situ purification of flue gas from a fire disaster in a cabin can be realized, and the like.
Owner:WUHAN UNIV OF SCI & TECH +1

Oxidized hyperbranched polyethyleneimine nanofiltration membrane, preparation method and application

The invention discloses an oxidized hyperbranched polyethyleneimine nanofiltration membrane. The membrane comprises a supporting layer and an oxidized hyperbranched polyethyleneimine layer, and the oxidized hyperbranched polyethyleneimine layer is obtained by performing vacuum filtration on oxidized hyperbranched polyethyleneimine turbid liquid to the supporting layer. The invention also discloses a preparation method of the oxidized hyperbranched polyethyleneimine nanofiltration membrane, and the method comprises the following steps: adding an oxidizing agent into a hyperbranched polyethyleneimine aqueous solution for reaction, and after precipitation, adding deionized water for dilution to obtain oxidized hyperbranched polyethyleneimine turbid liquid; placing the oxidized hyperbranched polyethyleneimine suspension on a support layer, carrying out vacuum filtration to form a membrane, and carrying out drying to obtain the oxidized hyperbranched polyethyleneimine nanofiltration membrane. The preparation method is simple, conditions are mild, and auxiliary effects of organic solvents are not needed. The oxidized hyperbranched polyethyleneimine nanofiltration membrane can intercept dye pollutants in water and remove salt in water, and has huge application potential in the field of water treatment.
Owner:NINGBO INST OF MATERIALS TECH & ENG CHINESE ACADEMY OF SCI

Method for restoring soil contaminated by persistent organic pollutants through elution with electrolyzed oxidizing water

The invention relates to a method for restoring soil contaminated by persistent organic pollutants through elution with electrolyzed oxidizing water. according to the invention, corresponding reagentsare respectively added into effluents output from two poles of a generator for electrolyzed oxidizing water so as to prepare three eluents; a mixed solution of sodium lauryl sulfate and sodium dodecyl benzene sulfate is added into alkaline water at the negative pole to prepare an eluent A; FeCl3 is added into a part of acidic water at the positive pole to prepare an eluent B, and H2O2 is added into the other part of the acidic water at the positive pole to prepare an eluent C. The soil is eluted according to a sequence of elution with the eluent A, rinsing, elution with the eluent B, rinsing,elution with the eluent C and rinsing. The method of the invention is relatively simple; waste liquid obtained after elution can be completely neutralized, so treatment is easy and operation is safeand reliable; and the method has the advantages of easy operation and maintenance, low material cost and low energy consumption for operation, and is applicable to restoration of soil in industrial contaminated sites and with low organic matter pollution concentrations. The method has good restoration effect on soil contaminated by various organic substances including persistent organic pollutants, and is a simple and effective remediation technology for organic contaminated soil.
Owner:ANHUI UNIVERSITY OF ARCHITECTURE +1

Phosphorus removal material and preparation method thereof

The invention discloses a preparation method of a phosphorus removal material, which is characterized by comprising the steps of 1) putting a graphite powder raw material, grinding balls and a ball milling medium into a ball milling tank according to a mass ratio of 1: (10-20): (4-6), carrying out ball milling on ball milling equipment for 24 hours at a rotating speed of 400-600r/min, then taking out, drying, and sieving with a 200-mesh sieve to obtain graphite powder; 2) dissolving the obtained graphite powder in a copper sulfate solution according to a solid-to-liquid ratio of 1: (5-10), carrying out ultrasonic treatment at 80-100KHz for 4-6 hours, then filtering and washing, carrying out high-temperature calcination on the obtained solid at the temperature of 800-1000 DEG C for 1-3 hours, and cooling to room temperature after the calcination is ended so as to obtain a solid product; and 3) mixing the obtained solid product with polystyrene and polyvinyl chloride according to a mass ratio of 1: (0.5-1): (0.5-1), carrying out a cross-linking reaction under the action of a catalyst, drying the product after the reaction is finished, and carrying out extrusion molding in a twin-screw extruder to obtain the phosphorus removal material. The material has an obvious removal effect on phosphorus and other pollutants in sewage.
Owner:神美科技有限公司

A garden green plant maintenance device and maintenance method thereof

The invention discloses a maintenance device for garden green plants and a maintenance method thereof, comprising a curb and a cylindrical rail, the cylindrical rail is connected to a functional part and a driving part; , the arc-shaped card slot can move along the axial direction of the cylindrical track and rotate in the circumferential direction. The arc-shaped card slot is uniformly provided with a placement cavity, and the placement cavity is rollingly connected with rolling balls. The arc-shaped card slot is rotatably connected with a fixed frame , the fixed frame is connected with a gradually expanding guide part, and the center of the gradually expanding guide part is provided with a water mist spray tube and an air spray tube, and the water mist spray tube is located inside the wind spray tube, and the top of the fixed frame is rotatably connected with a drive part connected The supporting rod; the driving part includes a driving car, and the driving car is provided with a fine water mist mechanism and a wind spray mechanism. Through the above arrangement, the irrigation efficiency can be greatly improved, and at the same time, the leaves of the garden plants can be cleaned, so it is suitable for widespread promotion and practicality.
Owner:NANJING FORESTRY UNIV

Preparation method and application of environment-friendly water-based cleaning agent for building

The invention provides a preparation method and application of an environment-friendly water-based cleaning agent for buildings, and relates to the technical field of surface cleaning. The preparation method comprises the following steps: S1, preparing the raw materials according to the weight parts of the components; s2, starch and alkenyl succinic anhydride are used as raw materials, and the starch-based surfactant with special performance is prepared through a chemical synthesis method. The detergent is prepared by adopting a superfine nano microemulsion technology, can efficiently remove stubborn dirt, grease, scrawling and the like, has a unique removal effect and application scenarios compared with a traditional detergent, and can effectively capture and polymerize target pollutants by forming a nano uniform-pore film on the surfaces of internal superfine nano microemulsion particles. The inorganic nano polymer material is used as a core raw material, so that the paint has excellent performances of environmental protection, no toxicity, no odor and no color. Meanwhile, the cleaning agent is free of residues after being used and can form a protective film on the surface of the ancient building after being used, so that the surface of the ancient building is further protected.
Owner:上海旦芯悦灵脑智能科技有限公司
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