33results about How to "Solve problems such as secondary pollution" patented technology

The invention discloses a hydropower station water surface rubbish treating system. The treating system comprises a rubbish heaping bin, a cutting system, a mixing agitator, a compressor, a drying chamber, a granulator and a finished product fuel bin which are sequentially connected with one another by a conveying belt, as well as a combustion improver bin and an adhesive bin which are respectively connected with the mixing agitator. By virtue of the treating system, rubbish can be transformed into new fine fuel with unified specification, waste is made profitable, and the problems such as secondary pollution caused by rubbish heaping are solved, so that the treating system not only brings benefits for environment protection, but also generates sustainable fuel resources, and has extensive social and economic values.

The invention discloses a processing method and system for barium fluoride waste containing metal ions. The metal ion-containing barium fluoride waste and hydrofluoric acid are added to a pickling kettle, stirring and heating are started, the metal ions in it are dissolved, and the stirring is carried out. After completion, carry out solid-liquid separation, wherein the filtrate is stored in the filtrate storage tank, and the acid barium fluoride solid is added to the neutralization kettle; water is added to the neutralization kettle to start stirring and heating, and the neutralization alkali is slowly added to adjust the pH of the solution to neutrality After the solid-liquid separation is carried out, the solid barium fluoride is dried to be a barium fluoride product, which is reused with neutral water; the hydrogen fluoride tail gas volatilized during the pickling process is absorbed by the absorption system and becomes hydrofluoric acid for reuse, and the remaining tail gas passes through the lye solution. Discharge up to standard after neutralization. The invention removes the metal ions in the barium fluoride waste by means of pickling combined with neutralization, and the produced pure barium fluoride product realizes the recycling of resources, reduces the processing cost of the barium fluoride waste, and has significant advantages. economic benefits.

The invention discloses an aseptic combustion power generation system for water surface garbage in a hydropower station, which includes a garbage storage bin, a sterilization room, a cutting system, a mixing mixer, a compressor, a drying room, a granulator, a fuel bin, a combustion chamber, and a fuel bin , adhesive silos, boilers, and steam turbines, and the flue gas is discharged through the chimney. The invention turns garbage into new fuel, which not only meets the requirements of hygienic production, but also purifies the follow-up environment of garbage treatment, turns garbage into new fuel, forms fine fuel with uniform specifications, and transports it to the fuel bunker. A certain feed rate puts fuel particles into the combustion chamber. After the fuel is burned, it generates heat and makes the boiler generate steam, which drives the steam turbine to rotate and generate electricity, and converts the garbage that pollutes the environment into fuel for combustion. Considerable energy.

The invention relates to a method for preparing nano-gold particles, in particular to a method for preparing liquid nano-gold particles by using atmospheric pressure low-temperature plasma plume. A method for preparing liquid gold nanoparticles using atmospheric pressure low-temperature plasma plume, comprising the following steps: placing a precursor on a petri dish; placing the petri dish in a plasma discharge area; opening and adjusting a gas flow meter to control the gas cylinder Output stable and uniform working gas to the plasma device; turn on the high-voltage power supply to stimulate the generation of atmospheric pressure low-temperature plasma, and the plasma forms a plasma plume on the liquid surface of the precursor to reduce Au 3+ Generate gold nanoparticles; collect the generated gold nanoparticles, measure particle size and test stability. The preparation method of the invention accelerates the generation speed of the nano-gold particles and ensures the purity of the generated nano-gold. The method has the advantages of simple operation, high time efficiency and high purity, high industrial feasibility, and can be used for large-scale production.

A whole membrane treatment method of electroplating chrome plating waste water comprises the following treatment steps of: 1) rinsing: rinsing electroplating chromeplated parts with clear water in a rinsing tank after being electroplated through a chromeplating electrophoresis liquid tank to obtain rinsed liquid; (2) sand filtration: treating the rinsed liquid in the rinsing tank by a sand filtration tank to remove suspension, colloid, flocculate, mud sand, rust, and the like to obtain sand-filtered liquid; (3) hollow fiber ultrafiltration membrane treatment; (4) reverse osmosis treatment: performing reverse osmosis concentration treatment of the clear liquid by a reverse osmosis device; (5) cyclic operation of the above steps. The method has the advantages that the problem of secondary pollution caused by traditional chemical precipitation methods is solved; the problem of membrane oxidation and degradation due to hexavalent chromium ions is solved; the method meets the new discharge national standard; the whole process flow operation is simple and convenient; waste water in the whole process is in a recycle state, and is not discharged to the outside at all; and the whole process reaches the standard of zero discharge.

The invention relates to the technical field of industrial waste water treatment, and specifically discloses an extractant and a method for using the extractant to treat 4,4'-biphenyl ether dianhydride production waste water. The extractant includes ester compounds with 3-6 carbon atoms and halogenated hydrocarbons with 1-6 carbon atoms, and the mass ratio of the ester compounds to the halogenated hydrocarbons is 1:2-4. In the present invention, firstly, the production wastewater is extracted by using the above-mentioned extractant, and then the oil phase obtained by extraction and separation is distilled to recover the extractant, reaction solvent, and reaction raw materials, respectively, to obtain high-purity extractant, reaction solvent, and reaction raw materials, etc. It can be directly recycled, which reduces the cost of wastewater treatment and the production cost of 4,4'-biphenyl ether dianhydride, and solves the problem of a large amount of harmful and hazardous waste generated by the direct distillation method, which requires secondary incineration and causes serious hazardous waste disposal problems. Raw materials cannot be recycled, resulting in waste of resources, and have high economic and environmental benefits.

The invention discloses a system for preparing fuel from water surface garbage in water power stations, which comprises a garbage accumulation bin, a sterilizing chamber, a cutting system, a stirrer, a compressor, a drying chamber, a granulator and a finished fuel bin which are sequentially connected through a transmission band, and also comprises a combustion improver bin, an adhesive bin, a seeping water collecting tank, a high-temperature steaming crucible, a biodegradation tank, an inspection chamber and a discharge trench. By converting the garbage into the new fuel, the system satisfies the requirement of hygienic production, purifies the subsequent environment for garbage treatment, forms the uniform-standard fine fuel, changes wastes into valuable substances, solves the problems of secondary pollution and the like caused by garbage accumulation, is beneficial to environmental protection, obtains a sustainable fuel resource, has wide social value and economic value, can treat the accumulated seeping water and the seeping water in the sterilizing chamber, and solves the problem of secondary environmental pollution.

The invention discloses a comprehensive processing system for generating power by sterilely burning garbage on the surface of water in a hydropower station. The comprehensive processing system comprises a garbage accumulation bin, a sterilization chamber, a cutting system, a mixing and stirring machine, a compressor, a drying chamber, a pelleting machine, a fuel bin, a burning chamber, a combustion improver bin, a binding agent bin, a boiler and a turbine, wherein an ash bin is arranged below the burning chamber, and is sequentially connected with a sieving machine, a crushing machine, a melting tank, a metal adsorbing and recycling tank, a filter net, an evaporation chamber, a calcining chamber, a natural cooling bin, a grinding machine, a water tank and a mineral powder bin. According to the comprehensive processing system, garbage is sterilely treated to form a new fuel for burning, the fuel is brunt to generate heat and the boiler is enabled to generate vapor to push the turbine to rotate to generate power, a considerable energy is obtained, and the burnt ash can be converted into a cement additive with high utilization value and economic value through reasonable process and equipment; the comprehensive processing system has a very high social value.

The invention discloses a preparation method of a supported active carbon ozone catalyst. The preparation method comprises following steps: (1) soaking active carbon particles in a KMnO4 water solution, drying, then soaking active carbon particles in a Ce(NO3)3.6H2O water solution, drying, and then burning the active carbon particles in the absence of oxygen to obtain composite active carbon particles; and (2) under the irradiation of ultrasonic waves, washing and activating the composite active carbon particles to obtain the supported active carbon ozone catalyst. According to the preparationmethod, active carbon particles are soaked in a KMnO4 water solution and a Ce(NO3)3.6H2O water solution, dried, burned, and finally washed and activated by ultrasonic waves to obtain the supported active carbon ozone catalyst, which can accelerate decomposition of ozone, and the efficiency of catalytic degradation of organic pollutant is obviously improved under the catalytic effect of ozone.

The invention discloses an aseptic treatment system applicable to waste on a water surface in a hydropower station. The aseptic treatment system comprises a waste accumulation bin, a sterilization chamber, a cutting system, a mixing stirrer, a compressor, a drying chamber, a granulating machine and a finished product fuel bin which are sequentially connected through a transmission belt; the aseptic treatment system also comprises a combustion-supporting agent material bin and an adhesive material bin which are respectively connected with the mixing stirrer. By virtue of the aseptic treatment system applicable to the waste on the water surface in the hydropower station, the waste is changed into new fuel, so that the requirements of sanitary production are met; the subsequent environment for treatment of the waste is purified; tiny fuel of the unified specification is formed, and thus the waste is changed into wealth, the problem of the secondary pollution brought by waste accumulation is solved, the protection of the environment is facilitated and a sustainable fuel resource is obtained; the aseptic treatment system applicable to the waste on the water surface in the hydropower station is relatively wide in social value and economic value.