30results about How to "Deep degradation" patented technology

A photocatalytic reactor equipment with granular or fibrous semiconductor material as catalyst for continuously degradating toxic organic sewage is composed of optical reactor, filter, pump and buffering tank. Its advantages are easy recovery of catalyst, high reaction efficiency, high optical utilization rate, and high treating capacity.

The invention discloses a reactor for filtering PAHs (polycyclic aromatic hydrocarbons) in waste gas from composite electrocatalytic oxidation treatment. The reactor comprises a housing, wherein the housing is made of quartz glass or ceramics, a gas inlet is arranged at one end of the housing, and a gas outlet is arranged at the other end of the housing; a metal conductive material is wrapped on the outer wall surface of the housing, and the metal conductive material is grounded as an outer electrode for dielectric barrier discharge; a porous metal reaction body is arranged right in the middle in the housing, and the porous metal reaction body is connected with an alternating current power supply as an inner electrode for the dielectric barrier discharge; the porous metal reaction body isformed by sintering stainless steel powder and loaded with a metal oxide catalyst; the end close to the gas inlet, of the porous metal reaction body is closed, and the other end close to the gas outlet, of the porous metal reaction body is open and communicated with the gas outlet; and a certain gap is left between the housing and the porous metal reaction body for forming a dielectric barrier discharge gap, and the dielectric barrier discharge gap is communicated with the gas inlet. The reactor can realize high-efficient degradation of the gas-phase and the solid-phase PAHs.

The invention provides an advanced oxidation system for activating peroxysulphate through ascorbate-ferrous ion coordination, and a method for deeply degrading pollutants. The system for activating peroxysulphate through a ferrous ion coordination system is formed by ascorbic acid, Fe<2+> and peroxysulphate. The method for deeply degrading the pollutants through peroxysulphate comprises the stepsof adding the system for activating peroxysulphate through ascorbate-ferrous ion coordination into waste water containing organic pollutants and nitrogenous pollutants to be treated, and controlling the pH value of the reaction system to range from 2 to 12; degrading at 15 to 50 DEG C for 5 to 60min. The system for activating peroxysulphate through ascorbate-ferrous ion coordination provided by the invention can form a compound peroxysulphate activation system, and the system forms an effective Fe<2+> protection mechanism through trim balance control, so that the resurrection of the Fe<2+> canbe realized, the aim on continuously, stably and efficiently activating peroxysulphate is further achieved, and the meaningless consumption of peroxysulphate is reduced to a certain extent.

A preparation method for pyro-vanadic acid zinc hollow microsphere comprises the following specific steps of respectively weighting zinc oxide, vanadium oxide, ethylenediamine tetraacetic acid and polyethylene glycol according to weight ratio of (4-6.6):(10-12.6):(1.2-1.6):1; adding the raw material into distilled water of the same weight of 40-50 parts of zinc oxide, stirring at room temperature, thus obtaining mixed liquor after ultrasound; putting the mixed liquor into a self-generated pressure hydrothermal reaction kettle, carrying out constant temperature hydrothermal reaction for 10-15 hours at 160-170 DEG C, then naturally cooling down to room temperature, finally filtering, washing, and drying substrate at the bottom of the kettle so as to obtain breen pyro-vanadic acid zinc hollow microsphere powder for sewage treatment. The preparation method has no secondary pollution and has low raw material cost, the defect of the TiO2 taken as traditional photocatalyst in practical application of sewage purification is effectively overcome by the pyro-vanadic acid zinc hollow microsphere as the photocatalyst, the whole process of the method is simple, the manufacture cost is lower, the method has high feasibility, and is applicable to industrialized mass production of photocatalyst.

The invention provides an antibiotic wastewater degradation device coupled with hydraulic, ultrasonic cavitation and oxidation processes. The device comprises a stator, a rotor, an ultrasonic generator and an ultrasonic transducer. The stator is a hollow sealed cylinder, and the ultrasonic transducer extending into an inner cavity of the stator is arranged on the outer wall of the stator; stator cavitation holes are distributed in the inner wall of the stator. Two wheel discs are arranged in the stator, and each wheel disc is fixedly connected to one rotating shaft; the two rotating shafts aresymmetrically installed at the two ends in the stator respectively. Wheel disc cavitation holes are distributed in the circumferential direction and the end face of each wheel disc. One end of the stator is provided with a wastewater inlet pipe and an oxidant pipe, and the other end is provided with a liquid outlet pipe. According to the device, the antibiotic wastewater is degraded by coupling hydraulic power, ultrasonic cavitation and an oxidizing agent, the cavitation energy density is enhanced, the effect of the oxidizing agent is improved, the antibiotic wastewater is degraded efficiently and synergistically, the effect is good, the amplification performance is good, the treatment capacity is large, continuous operation can be achieved, the cost is low, secondary pollution is avoided, and the device has wide application prospects in the field of wastewater degradation.

The invention provides a water-based paint coating with an air purification function. The water-based paint coating is prepared from the following components in parts by weight: 10 to 20 parts of a first air purification functional component, 8 to 14 parts of a second air purification functional component, 5 to 10 parts of a titanate coupling agent, 90 to 150 parts of water-based resin, 30 to 50 parts of water, 0.5 to 1 part of a de-foaming agent and 0.5 to 1.5 parts of a dispersing agent, the first air purification functional component is prepared from 8 to 10 parts of three-dimensional network graphene, 1 to 3 parts of nano silicon dioxide, 1 to 3 parts of nano titanium dioxide, 0.3 to 0.5 part of nano manganese dioxide and 10 to 20 parts of absolute ethyl alcohol; and the second air purification functional component is prepared from 5 to 8 parts of shell powder, 0.8 to 1.5 parts of tourmaline and 0.2 to 0.5 part of sepiolite. The water-based paint coating prepared by the preparation method disclosed by the invention is sufficient in coating loading, firm in combination, high and lasting in purification performance, capable of better purifying air and more widely applied to decoration materials.

The invention discloses a self-suction cup which comprises a cup body and a cap lid. The cap lid is arranged at the upper end of the cup body, a tea placement groove is formed in the upper side of the cap lid, an annular frame is arranged at the inner upper portion of the cup body, a water purifying unit is arranged on the annular frame, a fixing frame is arranged at the inner lower portion of the cup body, a positive electrode and a negative electrode are arranged inside the fixing frame, a water-permeability membrane is arranged between the positive electrode and the negative electrode, a groove is formed in the lower end of the cup body, a connecting rod is arranged in the inner middle portion of the groove, a fixing unit is arranged at the lower end of the connecting rod and comprises a shell and a suction disc, a cavity is formed in the shell, a movable plate is arranged inside the cavity, the lower end of the connecting rod is connected with the upper side of the movable plate, a venting pipe is arranged on the right side of the shell, the lower end of the venting pipe is communicated with the suction disc, and the other end of the venting pipe is communicated with the upper portion of the cavity. The self-suction cup is simple in structure, convenient in use, stable in placement, convenient in carry and capable of improving drinking water quality.

The invention relates to an organic feed taking kitchen waste as a raw material. The feed comprises the following raw materials in parts by weight: 15-30 parts of bean powder, 50-80 parts of a microbial fermentation composition and 0.5-1 part of calcium hydrophosphate. The microbial fermentation composition is obtained by performing aerobic fermentation on a microbial mixed agent, a combined enzyme agent, kitchen waste and water at a weight ratio of (0.5-1):(0.5-1):100:(20-30) at 25-50 DEG C for 8-12h. The microbial mixed agent comprises the following raw materials: bacillus subtilis, bacillusmegaterium, bacillus cereus, bacillus licheniformis, aspergillus niger and aspergillus oryzae; and the combined enzyme agent is a mixture of protease, cellulase, glucanase, pectinase and lipase. Thedesign not only realizes the deep degradation of organic matters, is beneficial to improving the immune function in animals, but also has short fermentation period, and does not generate stink.

The invention provides ferrous coordination system activated persulfate, a method of deeply degrading pollutants by using same, and an application of EDTA-VC. The ferrous coordination system activatedpersulfate is mainly composed of ascorbic acid, EDTA, Fe<2+> and persulfate. The method of deeply degrading pollutants by using the persulfate includes: adding the ferrous coordination system activated persulfate to to-be-treated wastewater containing the organic pollutants and nitrogen pollutants, controlling the pH of the reaction system to be 3-6, and performing degradation for 5-60 min at 15-50 DEG C. The ferrous coordination system activated persulfate can form a composite activated persulfate system; wherein by means of an effective Fe<2+> protection mechanism, the persulfate is activated without meaningless consumption of the persulfate.

The invention relates to a desk type simple water dispenser which comprises an electrolysis unit and a membrane filter unit. The electrolysis unit comprises at least a pair of positive electrode and negative electrode, an electrolysis power supply and a water tank. The electrolysis power supply supplies power for the positive electrode and the negative electrode. A water-permeable diaphragm made of a non-conductive material is arranged between each pair of negative electrode and positive electrode; the water tank is provided with a first water inlet and a first water outlet, the positive electrode is separated from the water tank by the water-permeable diaphragm, and the negative electrode is disposed in the water tank. The membrane unit is provided with a second water inlet and a second water outlet which are communicated with each other. During use of the desk type simple water dispenser, each negative electrode is in direct contact with water stored in the water tank, each positive electrode is in contact with the water tank via water permeated from the water-permeable diaphragms only, and thus a water film is sandwiched between the positive electrode and the water-permeable diaphragm. The water dispenser has the advantages that contaminant in source water can be removed effectively, bacteria in source water can be inactivated completely, toxic and side products are avoided, and the water dispenser is reliable in operation and long in service life.

The present invention relates to a chemical oxidation-photocatalysis combination apparatus, which comprises: a main box body, which mainly comprises a light-transmitting reaction space and a lightproof light source space, and the two spaces are separated by a light-transmitting separation plate; an aeration device is laid at the bottom of the reaction space; a liquid inlet, a medicine inlet and aliquid outlet are formed in the side surface of the reaction space; a catalyst is placed in the reaction space; and an artificial light source is arranged in the light source space. The chemical oxidation-photocatalysis combined device disclosed by the invention can realize deep degradation of high-salt and high-ammonia-nitrogen wastewater by utilizing a natural light source and an artificial light source at the same time and combining a chemical oxidation effect and utilizing an efficient catalyst; sunlight and an artificial light source can be utilized simultaneously, and the advantages of low cost of sunlight and controllability of the artificial light source are considered; according to the invention, the immobilized catalyst can be utilized, and the dispersed powder catalyst can alsobe used by taking out a loading platform, so that the applicability is wide; and a box cover can be opened to be conveniently externally connected with a stirring device, and the compatibility is high.

The invention discloses a method for deeply removing COD in wastewater. The method comprises the following steps that: sewage is added into a hydrolysis tank, a mixed solution hydrolyzed by the hydrolysis tank enters an aerobic tank, the mixed solution at one end, far away from the hydrolysis tank, of the aerobic tank flows back into the hydrolysis tank, the mixed solution in the aerobic tank flows into a secondary sedimentation tank, sludge settled in the secondary sedimentation tank flows back into the hydrolysis tank; and water in the secondary sedimentation tank enters a coagulation tank, ferrous sulfate and hydrogen peroxide are added into the coagulation tank, water in the coagulation tank flows into a defoaming tank, air is introduced into the defoaming tank, water in the defoaming tank flows into a flocculation tank, a flocculant is added into the flocculation tank, mud-water separation is performed in a tertiary sedimentation tank, and clean effluent is obtained. Compared with a conventional Fenton method, the method has the following advantages that: the use amount of chemicals (especially hydrogen peroxide, acid and alkali) in the oxidation coupling-precipitation technology is reduced by 50%-75%; and the operation cost is greatly reduced.

The invention discloses an application of sodium azide in degradation of organic matters and a method for treating organic wastewater by ozone. Organic matters in part of wastewater have stable structures and are difficult to degrade in a conventional oxidation process, and the organic matters generally have relatively strong biotoxicity, so that the biodegradability is relatively poor. According to the method, sodium azide is added in the process of oxidizing degradation-resistant organic matters by ozone, and electron-poor degradation-resistant organic matters are oxidized by utilizing azide free radicals (N3.) and hydroxyl free radicals (.OH) generated by reaction of the ozone and the sodium azide, so that ring-carrying degradation-resistant organic matters are subjected to ring opening, then the deep degradation of the degradation-resistant organic matters is realized, and the biodegradability of organic wastewater is improved. The azide free radicals generated in the reaction can be converted into nitrite and nitrate or directly added to the organic matters after reacting with the organic matters, a nitrogen source can be provided for subsequent biological treatment, and the subsequent biological treatment operation process is simplified.