35results about How to "Reduce solid waste treatment costs" patented technology

The invention discloses a desulfurization waste water zero discharge processing system and a processing method. The desulfurization waste water zero discharge processing system comprises a regulation sedimentation basin, triple connecting tanks, a defecator and a nanofilter which are connected in sequence, wherein the concentrated water outlet end of the nanofilter is connected with a mistorizer which sprays the concentrated water into a chimney flue; the triple connecting tanks include a neutralization tank, a reaction tank and a flocculation tank which are connected in sequence, wherein the neutralization tank is communicated with the water outlet of the regulation sedimentation basin, and is used for adjusting the pH value of desulfurization waste water, so that bicarbonate ions in the desulfurization waste water are removed; the reaction tank provides a reaction chamber for removing calcium ions in the desulfurization waste water; the flocculation tank is connected with the defecator. The desulfurization waste water zero discharge processing system and the processing method have the advantages of saving the cost of the agent for removing magnesium ions in the desulfurization waste water, reducing the quantity of sludge, lowering the operating cost, using no lime milk and improving the site working conditions. The sodium chloride salt in the waste water is purified and then crystallized, thus the recycle of the sodium chloride salt in the desulfurization waste water is achieved, the solid waste disposal cost is reduced, and certain economic benefits are produced.

The invention discloses an easy-to-install paint mist filter bag and a manufacturing method. The easy-to-install paint mist filter bag includes a filter bag body, which comprises a fixed frame, an internal connection frame and an external connection frame; the fixed frame is disposed at the openings of single filter bags in press fit, connection lugs are integrally arranged on both sides of the fixed frame symmetrically; the internal connection frame is embedded to the fixed frame, two side frames of the internal connection frame dent inward and are provided with connecting grooves, a lug connection frame for cooperative connection with the connection lugs is integrally disposed at the bottom of the internal connection frame close to two ends; two ends of the external connection frame stretch downward, and the external connection frame is internally equipped with elastic connecting pieces in cooperative connection with the connecting grooves. The easy-to-install paint mist filter bag provided by the invention has the characteristics of simple and reasonable structure, convenient disassembly, rapid replacement and stable structure, and a filter surface adopts equally spaced diamond-shaped through-holes, so that the filtering effect and ventilation effect of the filter bag are better than those of the existing plane filter layer, and the service life of the structure is prolonged.

The invention discloses a preparation method and application of aerogel, alkoxy silane is used as a raw material and hydrolyzed to form a sol, a silicon dioxide aerogel product is prepared through thesteps of modification aging, supercritical drying and normal-pressure drying, and alkoxy alcohol as a hydrolysis byproduct is recycled for preparing the alkoxy silane after being recycled; the aerogel prepared by the method is applied to preparation of aerogel composite fibrofelts, aerogel plates, aerogel glass and aerogel ball raw materials. By adopting the technical scheme, the preparation method is simple, the overall reaction is stable, the controllability is strong, the investment cost is low, the production period is short, and the process technology can realize continuous production and is environment-friendly; the prepared silicon dioxide aerogel product is excellent in heat insulation performance and heat resistance, and has relatively high processability.

The invention discloses a reverse osmosis membrane repairing agent which is characterized by comprising a component A and a component B which are independently prepared, wherein the component A is prepared from the following raw materials in parts by weight: 5%-15% of one of polydimethyl ethylene propyl ammonium chloride, polymethallyl amine propyl trimethyl ammonium chloride, polymethacrylamide trimethyl ammonium chloride and dodecyl dimethyl benzyl ammonium chloride; 25%-35% of glutaraldehyde; and the balance of purified water. The component B comprises the following raw materials in parts by weight: 5-10% of one of polyethylene glycol and polyvinyl alcohol; 30%-40% of one of sodium polyacrylate, anionic polyacrylamide, polyacrylic acid and polyacrylate; and the balance of purified water. The invention also discloses a method for realizing offline repair of the reverse osmosis membrane, the desalination rate of the reverse osmosis membrane after oxidation can be recovered to 97% or above, the recovery rate of a single membrane can be recovered to about 15%, and the repair effect can be stably maintained for half a year or longer.

The invention provides a method for preparing a soil conditioner by using acarbose fermentation waste residue. Specifically, the present invention treats acarbose fermentation waste residue through reasonable control of anaerobic reaction conditions and combined with pretreatment steps. Experimental results show that the method of the invention can significantly shorten the time of anaerobic treatment, and the removal rate of drug residues in waste residue can reach more than 90%, and the removal rate of solid matter can reach more than 70%. The invention also provides a method for making the soil conditioner by dehydrating and drying the remaining solid residue after multi-stage anaerobic treatment.

A high-efficiency preparation method of airgel and its application. The liquid preparation and hydrolysis in the early stage of the method are all completed in the reactor, using alkoxysilane as raw material, hydrolyzing it to form a sol, and entering into the intelligent production of airgel in the later stage After the system is integrated, it is intelligently controlled by the computer to realize the intelligent control of various electrical signals, and then control the operation of the transmission device, control the start and stop of the glue spray gun and the temperature and humidity in the liquid spray cabin, and control the heating and heat preservation cover I and the heating and heat preservation The temperature and holding time in the cover II; through intelligent glue spraying, the mold and the airgel products inside are transmitted in the airgel intelligent production integrated system to realize the continuous production of wet gel curing, aging and modification ; The product is obtained after drying, and the alkoxy alcohol produced by hydrolysis is recovered and recycled for the preparation of alkoxysilane. The invention reduces the transferred materials in the gel preparation process, simplifies the process, and reduces the production cost; at the same time, it also reduces the escape of volatile materials and is environmentally friendly.

The invention relates to a method for recovering diphenol by catalytic hydrocracking of phenol-containing tar, a catalyst and a catalyst used in the method. The method uses cesium salt-modified titanium dioxide loaded with palladium and silver as a catalyst, and uses phenol-containing tar as a reaction raw material in an ethanol solvent to directly synthesize ortho / hydroquinone through catalytic hydrogenation. The method is simple to operate and environmentally friendly. On the one hand, the residual hydroquinone product in the phenol-containing tar is recovered, and at the same time, the tar produced by phenol dimerization and deep oxidation is rehydrocracked into a high value-added diphenol product. , which not only reduces the treatment cost of solid waste, but also significantly increases the yield of diphenol products.

A catalytic hydrolysis pretreatment method for industrial park wastewater relates to the technical field of industrial wastewater treatment. In order to solve the problems of traditional industrial park wastewater pretreatment, the invention has poor pretreatment effect, cumbersome acid-base adjustment, large amount of oxidative pretreatment, large amount of sludge and unstable operation. Method: 1. Add packing and pretreated industrial wastewater into the catalytic reduction biological hydrolysis tank, add ozone catalytic packing and hydrogen peroxide into the ozone catalytic reaction tank, and pump the upper layer liquid of the industrial wastewater in the catalytic reduction biological hydrolysis tank to the ozone catalytic reaction Catalytic oxidation is carried out in the tank, and the industrial wastewater in the ozone catalytic reaction tank is returned to the catalytic reduction biological hydrolysis tank; the industrial wastewater flows into the flocculation sedimentation tank through the water outlet, the pH is adjusted to 7-8.5, polyacrylamide is added, and precipitation is completed to complete the industrial wastewater. Catalytic hydrolysis pretreatment. The invention can obtain a method for catalytic hydrolysis pretreatment of industrial park wastewater.

The invention provides a fixed bed adsorbing device for basic oil. The fixed bed adsorbing device comprises an input port, a fixed bed absorber, a filter and an output port, wherein the fixed bed absorber comprises a tube-shaped casing, a fixed bed layer arranged in the tube-shaped casing and an input cavity communicated with the tube-shaped casing and arranged under the fixed bed layer. The input cavity is a cone body with the upper top face larger than the lower bottom face, and the input port is horizontally arranged on the lateral wall of the cone body. The fixed bed layer comprises an upper partition board, a lower partition board and an absorber pressed tightly between the upper partition board and the lower partition board, wherein the upper partition board and the lower partition board are arranged in parallel mode. The basic oil is input into the input cavity through the input port, output into the filter after absorbed by the fixed bed layer and discharged through the output port after being filtered by the filter. The fixed bed adsorbing device for basic oil has the advantages of being simple in structure, high in automation degree, small in pollution and good in adsorbing performance.

The invention discloses a treatment method for CTC rectifying still residues and belongs to the technical field of treatment of solid waste in chemical industry production processes. According to the method, a solvent is added into the rectifying still residues for an impurity removing technique at first; and then solid alkali is added into a mixed liquid subjected to impurity removing in batches, a temperature increasing refluxing reaction is conducted, high-content pyridine chlorides are converted into carbon, hydrogen, oxygen and nitrogen compounds, and incineration treatment is facilitated. The economic pressure of enterprises for treating the still residues is relieved, and the environment is protected.

The invention discloses a method for preparing an aerosil and a system thereof. The method comprises the following steps: 1) slag slurry in polysilicon production and water are mixed, a hydrolysis reaction is carried out to generate silica sol, and a solid-liquid mixture is obtained; 2) the solid-liquid mixture is subjected to solid-liquid separating, and a solid mixture and a liquid mixture are respectively obtained, wherein the liquid mixture comprises silica sol; 3) an alkaline solution is used for adjusting pH value of the liquid mixture to alkalescence, gelating treatment is carried out,and silica sol in the liquid mixture generates silicon gel; 4) the silicon gel is subjected to solvent replacing, and water in the silicon gel is replaced; and 5) drying is carried out to obtain the aerosil. The method employs the slag slurry in polysilicon production as a silicon source of aerosil, raw material cost for preparation of the aerosil is reduced, environment pollution, solid waste processing cost and material waste are reduced, and enterprise economic benefit can be increased.

The invention discloses a lining barrel for an antistatic chemical raw material barrel and a process thereof. The lining barrel comprises a raw material barrel, a barrel handle, a barrel lid and a lining barrel body, wherein two handle holes are formed in the side face of the raw material barrel, fixing lugs are arranged at the outer ends of the holes, and through holes are formed in the fixing lugs. Rotating plates are arranged in the handle holes, and the barrel handle is arranged at one ends of the rotating plates. The barrel handle penetrates through the through holes, and the barrel handle is provided with a handle protecting shell in a penetrating mode. The handle protecting shell is provided with a handle ring in a penetrating mode. The lining barrel has an antistatic function, andprevents chemical raw materials in the barrel from generating static electricity during transportation to cause a safety accident; the lining barrel has a light weight, few chemical raw materials arebonded to the barrel wall, the cost of solid waste treatment is low, and a good environmental protection effect is achieved; and the lining barrel has high corrosion resistance, the outer lining ironbarrel can be recycled, and the usage cost of the chemical raw materials is greatly reduced.

The invention discloses a baking-free brick containing aluminum mud, which is prepared from the following materials in percentage by weight: 15-25% of dry aluminum mud powder, 3-10% of fly ash, 5-20% of water-quenched slag powder, 5-15% of Portland cement and 20-50% of sandstone aggregate, and the aluminum mud is a solid waste filler. The sandstone aggregate can also be replaced with industrial and mining solid waste to serve as aggregate besides a common sandstone material, and the aggregate comprises but is not limited to tailing sand, barren rock and construction waste. The curing cementing material comprises but is not limited to fly ash, water-quenched slag powder and Portland cement. The invention relates to the technical field of construction materials, in particular to a baking-free brick containing aluminum mud. The expansion damage of the baking-free brick caused by water absorption of the aluminum mud is inhibited, and the stability of the product is improved. The characteristics of a volcanic ash material and dense filling of coarse and fine aggregate gradation are fully utilized, so that the use amount of cement is reduced, the cost is greatly reduced, the volume weight and strength of a product are increased, and the negative influence of light aluminum mud on the strength of the product is reduced.

The invention discloses a preparation method and application of an airgel. Alkoxysilane is used as a raw material, which is hydrolyzed to form a sol, which is then modified and aged, and prepared through supercritical drying and normal pressure drying steps to obtain aerogel Silica airgel products, after hydrolysis by-product alkoxy alcohols are recovered, are recycled for the preparation of alkoxysilanes; the aerogels prepared by the method are used to prepare airgel composite fiber mats, airgel panels, Application in airgel glass and airgel ball raw materials. Adopting the technical scheme of the present invention, the preparation method is simple, the overall reaction is stable, the controllability is strong, the investment cost is low, the production cycle is short, and the process technology can realize continuous production, which is friendly to the environment; the prepared silicon dioxide gas condensation Rubber products have excellent thermal insulation performance and heat resistance performance, and have high processing performance.