31results about How to "Give full play to the adsorption effect" patented technology

The invention discloses a compound refined diatomite sewage dephosphorization agent. The compound refined diatomite sewage dephosphorization agent comprises 67-75% of modified refined diatomite, 24-32% of a polymeric diacid flucculant and 1-2% of a cationic organic polymer flocculant. The compound refined diatomite sewage dephosphorization agent has the advantages that the modified diatomite has efficient adsorption effects and the polymeric diacid flucculant and the cationic organic polymer flocculant are conducive to obvious improvement of aggregation and flocculation effects of suspended sludge blankets in a biological aeration tank or a sedimentation tank, thus the dephosphorization efficiency of sewage treatment is greatly improved; and compared with the traditional chemical dephosphorization technology only adopting an aluminium salt or a ferric salt, a technology adopting the compound refined diatomite sewage dephosphorization agent has higher treatment efficiency and a lower operation cost.

The invention discloses aluminum profile anode oxidizing electrolyte, a preparation method thereof and an aluminum profile anode oxidizing process and belongs to the technical field of electrolysis orelectrophoretic processes. The electrolyte is composed of phytic acid, fulvic acid, a PH conditioning agent and water, the concentration of the phytic acid in the electrolyte is 70-90 g/L, the concentration of the fulvic acid in the electrolyte is 35-55 g/L, and the PH value of the electrolyte is 2.0-2.8. On the one hand, the phytic acid of the electrolyte is mainly sourced from root trunks, stems and seeds of plants, the fulvic acid can be used for a medical purpose, and therefore, the electrolyte mainly composed of the phytic acid and the fulvic acid is completely poisonous and harmless andis environmentally friendly; and on the other hand, aluminum ions dispersed into a solution and a complex formed by the phytic acid and the aluminum ions can be adsorbed to a position nearby an aluminum profile, a complex of phytic acid and Al<3+> is also formed on the surface of aluminum oxide while hole sealing is assisted, a layer of compact hydrophobic protective film is produced, a chemicaldissolution effect of the electrolyte on the oxidation film is retarded, the performance of the film is improved, and the corrosion resistance of the oxidation film is enhanced.

The invention relates to an active carbon filter core and a preparation method thereof. The active carbon filter core comprises is prepared from the following raw materials in parts by weight: 150 parts of polyethylene, 200 parts of active carbon, 100 parts of magnesium and 35 parts of a KDF filter material, wherein the iodine adsorption value of the active carbon is 1000-1200. The preparation method comprises the following steps: (1) mixing and uniformly stirring the polyethylene, the active carbon, the magnesium and the KDF filter material to obtain a mixed material; (2) putting the mixed material into a mould, then adding into a furnace for sintering heat treatment, cooling, and demoulding to obtain the active carbon filter core. The active carbon filter core has the beneficial effectsas follows: through a scientific ratio of the raw materials, the defects that the conventional active carbon filter core only uses an active carbon material and the adsorbing and purifying effects ofthe active carbon are poor are overcome; the active carbon has the particle size of 80-325 meshes, the adsorbing effect of the active carbon is fully played, and the purifying effect of the filter core is enhanced; a bonding moulding material in the filter core selects ultra-high molecular weight polyethylene, so that a water passage is not blocked, and the effect of the filter material is fully played; the filter core is firm, durable, good in gas diffusion, strong in filtration and strong in adsorption.

The invention provides a multistage activated carbon adsorption and ultrafiltration membrane combined drinking water treatment device and a drinking water treatment method and relates to a drinking water treatment device and a drinking water treatment method. The invention aims at solving the problems that removal effect on trace organic substances of an existing ultrafiltration membrane technology is poorer and membrane pollution is caused by PAC in a PAC-ultrafiltration membrane combined technology. The device comprises a PAC adding unit, a coagulant adding unit, a flocculation reaction tank, a sedimentation tank, a return pipe, a common rapid filter, an aeration device, a GAC filter tank and an ultrafiltration membrane component. The method comprises the following steps: adding PAC and a coagulant into raw water by virtue of the PAC adding unit and the coagulant adding unit, and then enabling the raw water to enter the flocculation reaction tank; enabling effluent of the flocculation reaction tank to enter the sedimentation tank, and enabling carbon mud mixed solution to return to a water inlet of a flocculation tank by virtue of the return pipe; and thirdly, enabling effluent of the sedimentation tank to enter the common rapid filter, enabling effluent of the common rapid filter to enter the GAC filter tank by virtue of the aeration device, and enabling effluent of the GAC filter tank to enter the ultrafiltration membrane component. The device and method provided by the invention are applied to the field of drinking water treatment.

The invention relates to a short-flow micro-polluted raw water treatment combined system integrated with adsorption, biological oxidation and membrane separation technologies. The system comprises a raw water tank, a biological contact oxidization area, a transition area and a membrane reaction area, wherein the raw water tank is connected with a water inlet on one side at the top of the biological contact oxidization area through a water sucking membrane pump and a pipeline; an air pump is connected with an air inlet port on one side at the top of the biological contact oxidization area through a pneumatic butterfly valve and a pipeline; the air inlet port is connected with an air inlet tube; the air inlet tube is inserted into the bottom of the biological contact oxidization area; PAC (Polymeric Aluminum Chloride) grains are arranged in both of the biological contact oxidization area and the transition area; the biological contact oxidization area and the transition area are connected through an overflow plate; a sludge-discharging inclined plate is arranged at the bottom of the transition area; a membrane pool is arranged on one side of the transition area; a hollow fiber membrane is arranged in the membrane pool; the air pump is connected with the air inlet port on one side at the top of the membrane pool through the pneumatic butterfly valve and the pipeline; the air inlet port is connected with the air inlet tube; and the air inlet tube is inserted into the bottom of the membrane pool.

The invention discloses a cyclodextrin nanocluster-modified graphene film material. Cyclodextrin on a graphene sheet is connected through a functional group reaction method based on graphene as a carrier, the nanoclusters are formed on the graphene surface through self-assembling, the graphene is obtained through reduction of various graphene oxides in various ways and the cyclodextrin is alpha, beta or gamma cyclodextrin subjected to functional group replacement. The cyclodextrin provides a carrier for a cyclodextrin nanocluster and provides a water filtering channel so that cyclodextrin canfully perform the adsorption effect on bisphenol A and the whole removal process is simple and fast. The graphene film has nanofiltration effects and greatly improves the removal efficiency of bisphenol A. The invention also discloses a preparation method of the cyclodextrin nanocluster-modified graphene film material.

The invention relates to the technical field of selective catalytic reduction catalysts, in particular to a denitration catalyst with a low SO2/SO3 conversion rate and a preparation method thereof. The preparation method comprises the following steps of putting a metal nitrate, glycine and an inorganic salt auxiliary in a solvent, conducting stirring for dissolution, and conducting calcination to obtain a powder A; dipping titanium dioxide in a mixed solution of ammonium metavanadate and ammonium heptamolybdate, conducting stirring and dissolving, and conducting calcining to obtain a powder B; and mixing the powder A and the powder B, and performing high-shear dispersion to obtain the denitration catalyst. The metal oxide is prepared by adopting a glycine combustion method, and the prepared metal oxide is small in particle size, uniform in particle size distribution, multiple in pore channels, high in adsorption capacity and capable of adsorbing SO2 and SO3 on the catalyst in the SCR reaction process, so that the SO2/SO3 conversion rate of the catalyst is reduced; and the powder A and the powder B can be highly and uniformly mixed under the actions of centrifugal extrusion, high-speed cutting, impacting, grinding and the like generated in the high-shear dispersion process, so that the high denitration activity of the catalyst is guaranteed.

The invention belongs to the technical field of wastewater treatment. The phenol-cyanogen wastewater treatment method utilizes coke powder as a solid adsorbent to perform dynamic adsorption, and comprises: a) mixing phenol-cyanogen wastewater and a solid adsorbent to obtain a first solid-liquid mixture, wherein the weight of the solid adsorbent is less than 10% of the amount of the phenol-cyanogenwastewater; b) draining the first solid-liquid mixture to an adsorption pool, and carrying out dynamic adsorption in the adsorption pool to obtain a second solid-liquid mixture, wherein at least a first separation plate and a second separation plate are longitudinally arranged in the adsorption pool, and are used for separating in the adsorption pool to at least form a first adsorption groove, asecond adsorption groove and a third adsorption groove, a plurality of through holes for the passing through of the first solid-liquid mixture are arranged on the bottom portions of the first separation plate and the second separation plate, and the first solid-liquid mixture sequentially flows through the first adsorption groove, the second adsorption groove and the third adsorption groove; and c) carrying out solid-liquid separation on the second solid-liquid mixture, and discharging the treated water. According to the present invention, the method has characteristics of low operating cost and high adsorption efficiency, and can treat large-scale phenol-cyanogen wastewater.

The invention discloses a bioreactor for an artificial liver, and the bioreactor comprises a circular glass cylinder sealed by covers at the two ends, and a plurality of hollow fiber tubes made of hollow fiber membranes are arranged in the center in the circular cylinder; the blood inlet pipe is communicated with one ends of all the hollow fiber pipes, the blood outlet pipe is communicated with the other ends of all the hollow fiber pipes, the nutrient solution inlet pipe and the nutrient solution outlet pipe are communicated with the peripheral gap, a plurality of first rod type electrodes are fixed to the inner wall of the circular cylinder, and a second rod type electrode is fixed to the centers of the hollow fiber pipes. One end of each first rod-type electrode is electrically connected with the negative electrode of the battery, one end of each second rod-type electrode is electrically connected with the positive electrode of the battery, the first rod-type electrodes are uniformly distributed along the circumference of the inner wall of the circular glass cylinder, and an electric field which uniformly radiates in the radial direction is formed between the first rod-type electrodes and the second rod-type electrodes. The bioreactor of the artificial liver can fully remove protein binding toxins in blood, and the service life of the bioreactor of the artificial liver is prolonged.

The invention particularly relates to a nutrient geotextile comprising a woven fabric layer, a nutrient layer and a non-woven fabric layer. The nutrient geotextile is characterized in that the nutrient layer comprises the following raw materials in parts by weight: 20-30 parts of modified bentonite, 5-10 parts of activated carbon sources, 8-15 parts of activated nitrogen sources, 5-10 parts of EMstrains and 1-5 parts of bean dregs. The bentonite is modified, the EM strains and other materials are introduced to jointly form the nutrient layer, so that the bentonite can fully play an adsorptionrole and adsorb more nitrogen sources, carbon sources and EM strains, the living environment of plants in concrete gaps is improved, and the survival rate of the plants is increased.

The invention discloses a mounting structure for a magnetic screw plug of a wind power gear box. The mounting structure comprises a ball valve, a three-way joint, the magnetic screw plug and an oil pipe, wherein the ball valve is arranged on a box body oil tank; one end of the three-way joint is connected with the inlet end of the oil pipe, and the other two ends of the three-way joint are connected with the ball valve and the magnetic screw plug respectively; the outlet end of the oil pipe is connected with an electric oil pump; and the electric oil pump is arranged on the box body oil tank. When the oil pump sucks oil, lubricating oil containing metal particles enters the oil pipe through the three-way joint and then is adsorbed by the magnetic screw plug on the three-way joint, so that the metal particles entering a filter and the gear box are reduced, the cleanliness of the lubricating oil is improved, and the lubricating effect of a gear and a bearing is improved. After the gear box works for a long time, the ball valve can be closed, the lubricating oil in the box body oil tank is prevented from leaking out, and then the magnetic screw plug is disassembled and cleaned, so that the waste and pollution of the lubricating oil are avoided, and the maintainability of the magnetic screw plug is improved.

The invention relates to an air filter element with multiple filtering effects. The air filter element comprises electrostatic dust collection paper, a plurality of first micropores, a fiber adsorption layer, a plurality of second micropore, fibers and an activated carbon layer. The first micropores are formed in the electrostatic dust collection paper, the fiber adsorption layer is adhered to theupper side of the electrostatic dust collection paper, the second micropores are formed in the fiber adsorption layer, the first micropores in the electrostatic dust collection paper and the second micropores in the fiber adsorption layer are staggered in position, the second micropores are filled with the fibers, and the activated carbon adsorption layer which is prepared by coating a non-wovenfabric externally with activated carbon particles is adhered to the upper side of the fiber adsorption layer. The air filter element has the advantages that the air filter element is simple in integral structure, has the multiple adsorption effects, can guarantee little difference of using states of positions of the air filter element from the bottom air inlet face to the top air outlet face, andavoids the condition that the whole air filter element is fully replaced as the air outlet face is relatively new while the air inlet face needs to be replaced, so that the air filter element plays afull adsorption role, the service life of the air filter element is prolonged, and the using cost is lowered.