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

The invention relates to an active-carbon-loaded manganese dioxide and titanium dioxide ozone catalyst for advanced treatment and a preparation method. The preparation method comprises: dissolving KMnO4 and an oxidant in deionized water, respectively; till the complete dissolution is completed, adding a MnSO4 solution to the KMnO4 solution drop by drop; adding TiO2 powder, performing a reaction at 180 DEG C for 12 h, and performing washing, filtration and drying to obtain MnO2-TiO2 composite particles; dispersing the composite particles in the deionized water; adding active carbon; performing soaking in a MnO2-TiO2 suspending liquid; and after the soaking is finished, putting the obtained product in a muffle furnace for roasting to obtain active-carbon-loaded manganese dioxide and titanium dioxide ozone catalyst particles. The reaction time can be effectively reduced, the removal efficiency of COD is improved, and the catalyst can be used to the field of water pollution treatment.

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 a stone coal vanadium ore oxidizing, crystal breaking, roasting and vanadium extracting comprehensive utilization system. A crusher, a high-pressure roller mill, a first feeding belt, a feeding bin, a second feeding belt and a spiral feeder are sequentially matched with one another, and the discharging end of the spiral feeder is matched with a feeding port of a suspensiondecarburization roasting furnace; the suspension decarburization roasting furnace, a first cyclone separator, a suspension crystal breaking roasting furnace, a second cyclone separator and a cooler are sequentially communicated in series; a combustor and an air inlet are respectively arranged at the bottoms of the suspension decarburization roasting furnace and the suspension crystal breaking roasting furnace; an air inlet of the cooler is communicated with an air compressor; and a discharging hole in the bottom of the cooler is matched with a feeding hole of an acid mixing curing furnace; andthe acid mixing curing furnace, a first leaching tank, a first filtering device, a second leaching tank, a second filtering device, a pH value adjusting tank and a third filtering device are sequentially connected in series and matched with one another. The system provided by the invention is stable in operation, large in treatment capacity, low in energy consumption and cost of unit treatment capacity, and capable of easily controlling product properties and easily achieving large-scale equipment.

The invention discloses a method for activating persulfate with sludge-based biochar and synergistically removing tetracycline in water. The method comprises the following steps: adding 15-35mg of sludge-based charcoal and 20mL of persulfate with the concentration of 270-330mg / L into 50mL of a tetracycline solution with the concentration of 120mg / L. According to the method, the tetracycline in thewastewater is efficiently removed while the sludge resource utilization is realized, the problems of secondary water environment pollution and the like caused by metal ions or complexes of the metalions are solved to a great extent, and the method has important significance for optimizing a sewage treatment process and realizing energy conservation and emission reduction. The specific surface area of the sludge-based biochar cultured from the excess sludge at high temperature is large and is 39.719 m<2 > / g, and the sludge-based biochar can be used as an excellent adsorption material due to more attachment sites on the surface and a large pore size area.

The present invention relates to a process and equipment of water desalting, particularly to a process and equipment for nature freezing desalting of high salt water. The process steps comprise: carrying out water storage cooling, artificial snowmaking, and gravity melting desalination, collecting the concentrated high salt water into a high salt water storage tank, and evaporating by using solar energy to obtain the inorganic salt and the distilled water. According to the technical route of the present invention, the salt component and other impurities in the ice body can be eliminated when the salt water freezes so as to obtain the desalted low-salt ice body, the ice particles are continuously purified through the further technical measures so as to obtain the low-salt or desalted regeneration fresh water meeting the industrial and agricultural use requirements, the highly concentrated salt water is subjected to a desalting treatment through the solar energy greenhouse and other technologies to obtain the inorganic salt and the distilled water, and the desalting treatment on the industrial high salt water, the comprehensive utilization, and the zero emission can be achieved.

The invention relates to the technical field of industrial wastewater treatment, and particularly discloses an extracting agent and a method for treating 4,4'-diphenyl ether dianhydride production wastewater by using the extracting agent. The extracting agent comprises an ester compound with 3-6 carbon atoms and halogenated hydrocarbon with 1-6 carbon atoms, and a mass ratio of the ester compound to the halogenated hydrocarbon is 1: (2-4). According to the method, firstly, the extracting agent is adopted for extracting the production wastewater; then the extracting agent, a reaction solvent, reaction raw materials and other substances are recovered from an oil phase obtained through extraction and separation via distillation; the obtained high-purity extracting agent, the reaction solvent, the reaction raw materials and the like can be directly recycled, so wastewater treatment cost is reduced, and the production cost of 4,4'-diphenyl ether dianhydride is reduced; and the method overcomes the problems of serious hazardous waste treatment, incapability of recycling raw materials and resource wasting due to the fact that a large amount of harmful hazardous waste is generated by a direct distillation method and secondary incineration treatment is needed and has high economic benefits and environmental benefits.

The invention discloses a bed layer material for melting waste incineration fly ash, a preparation technology and a treatment method and relates to the technical field of environmental engineering. The bed layer material is made of raw material powder and liquid; the raw material powder comprises fly ash, silicon dioxide, alkaline agentia, a fluxing agent, a binder and carbon powder; and the liquid is one or more selected from running water, biogas slurry and leachate. The bed layer material is reduced in melting temperature; the heavy metal leaching concentration of the melting product vitreous body is far lower than the standard limiting value; and contents of dioxin and normal pollutants in flue gas meet the national standard, so that harmlessness of fly ash is thoroughly realized to solve the problem of secondary pollution caused by waste incineration fly ash; and in addition, the resource is recycled, so that the bed layer material has the advantages of saving energy, lowering thecost, realizing treatment of wastes with processes of wastes against one another, co-processing and facilitating large-scale industrial production and application.

The invention discloses a treatment system suitable for kitchen waste. The treatment system suitable for kitchen waste comprises a kitchen garbage container, a grease separator, a filter and a septic-tank which are successively connected through a pipeline. The treatment system suitable for kitchen waste also comprises a cutting system, a cleaning system, a dehydrator, a high-temperature disinfecting tank and a drying room which are successively connected through a conveyor belt; the treatment system suitable for kitchen waste also comprises a pulverizer and a bagging machine which are successively connected to the drying room through a pipeline, wherein the kitchen garbage container conveys a kitchen waste mixture to the grease separator; the grease separator receives the kitchen waste mixture conveyed by kitchen garbage container to separate grease and convey the degreased mixture to the filter; the filter receives the degreased mixture conveyed by the grease separator, conveys the liquid to the septic-tank and meanwhile conveys a solid mixture to the cutting system. The treatment system suitable for kitchen waste disclosed by the invention achieves a purpose of a system of recycling and turning the kitchen garbage into wealth.

The invention belongs to the technical field of thermal plasma application, and particularly discloses a device and method for reducing fluoride through thermal plasmas, the device comprises a direct current plasma torch, a reduction reaction chamber, a reaction chamber, a reaction chamber support and a collecting tank, the lower portion of the reaction chamber is fixed to the reaction chamber support, and the bottom of the reaction chamber is connected with the collecting tank in a sealed mode; the reduction reaction chamber is located in the reaction chamber, the reduction reaction chamber is in sealed connection with the reaction chamber, and the top of the reduction reaction chamber is fixedly connected with the direct-current arc plasma torch. The method has the characteristics of high production efficiency, short industrial process and the like, belongs to a one-step rapid reduction method, can solve the problem that intermediate products in an existing fluoride treatment mode cause secondary pollution to the environment and the like, reduces the treatment cost, and has the potential of industrial application.

The invention discloses a processing system for generating power by burning refuse on the water surface of a hydropower station. The processing system comprises a refuse stacking bin, a cutting system, a mixing-stirring machine, a compressor, a drying chamber, a granulator, a fuel bin, a combustion chamber, a combustion improver stock bin, a binding material stock bin, a boiler and a steam turbine, wherein smoke is exhausted through a chimney, and an ash bin is arranged under the combustion chamber and is sequentially connected with a sieving machine, a crushing machine, a melting pool, a metal adsorbing-recycling pool, a filter net, an evaporation chamber, calcining chamber, a natural cooling bin, a grinding machine, a water tank and a mineral powder bin. According to the processing system, the refuse is converted into a new fuel and is fed into the combustion chamber in a certain feeding speed, the steam is generated by the boiler by virtue of heat generated after the combustion of the fuel, and the steam turbine is driven to generate the power by virtue of the steam, so that the considerable energy source is obtained; the combusted ash can be converted into a cement additive with high utilization, economic and social values by virtue of reasonable processes and equipment.

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.

A process for preparing biologic diesel oil from animal fat and plant oil includes such steps as enzyme esterifying and acidifying reaction, ultrasonic impact to break long molecule to short one, dewatering, and freeze separation.

The invention relates to a composition and a method for preparing high-strength ceramic particles. The composition is prepared from sludge, mining solid waste or metallurgical solid waste and an additive. A preparation method of the composition comprises the following steps: firstly carrying out innocent treatment on all materials of the sludge and the mining solid waste or metallurgical solid waste, then smashing the materials, adding the additive after mixing the smashed materials, feeding the mixed materials in a device, uniformly stirring and drying, then putting the dried materials in a pelletizing device, processing the dried materials into raw material balls, firing the raw material balls in a roasting device, and cooling after firing, thus preparing the high-strength ceramic particles. The high-strength ceramic particles prepared by utilizing the composition have higher strength, and the cost is very low; meanwhile, the problems of environment pollution, waste of land resources and the like can be solved.

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 a treatment method and system for barium fluoride waste containing metal ions. The method comprises the following steps of adding the barium fluoride waste containing the metal ions and hydrofluoric acids into a pickling kettle, starting stirring, heating, dissolving the metal ions in the pickling kettle, carrying out solid-liquid separation after stirring is completed, storing filtrates in a filtrate storage tank, and adding acidic barium fluoride solids into a neutralization kettle; adding water into the neutralization kettle, starting stirring and heating, slowly adding alkali for neutralization, adjusting the pH value of the solution to be neutral, then carrying out solid-liquid separation, drying solid barium fluoride to obtain a barium fluoride product, and recycling neutral water; absorbing a hydrogen fluoride tail gas volatilized in the pickling process by an absorption system to become the hydrofluoric acids to be recycled, and discharging the residual tail gas after reaching the standard after being neutralized by alkali liquors. According to the method, the metal ions in the barium fluoride waste are removed in a manner of combining acid pickling with neutralization, the pure barium fluoride product is produced, the cyclic utilization of resources is achieved, the treatment cost of the barium fluoride waste is reduced, and the method has remarkable economic benefits.

The invention discloses an overwater garbage burning and power generating system for a hydropower station. The overwater garbage burning and power generating system comprises a garbage accumulation bin, a cutting system, a mixing and stirring machine, a compressor, a drying chamber, a pelletizer, a fuel bin, a burning chamber, a combustion improver bin, an adhesive bin, a boiler and a steam turbine, and smoke is discharged through a chimney. Garbage turns into new fuel and is small fuel with unified specifications and conveyed to the fuel bin. The fuel bin feeds fuel particles into the burning chamber at certain feed speed, heat generated after the fuel is burned and heats the boiler to generate steam, and the steam pushes the steam turbine to generate power. Accordingly, garbage polluting the environment is converted into the fuel and burned, problems about garbage treatment are greatly solved, and considerable energy resources are obtained.

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 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.

The invention belongs to the field of bactericides, and discloses an azadirachta indica mite and bacterium killing agent and a preparation method and application thereof. The azadirachta indica mite and bacterium killing agent contains an azadirachta indica extract. The preparation method comprises the following steps that step 1, azadirachta indica seed kernels are washed, dried at a low temperature and crushed and sieved by a 16-mesh sieve; step 2, the crushed azadirachta indica seed kernel powder is loaded into a hollow glass column and extracted 3 times with n-hexane, and n-hexane is removed by rotary evaporation under the condition of 40 DEG C to obtain a substance a; and step 3, residual solvents are removed from the substance a by an organic pump to obtain an oil-soluble insecticidal active ingredient to be compounded to obtain the mite and bacterium killing agent. Aiming at the living habit of mites, the azadirachta indica mite and bacterium killing agent adopts the characteristics that natural plant extracts are non-toxic and harmless and has no secondary pollution, thereby achieving the killing of human mites and reducing the impact on human health. The plant extracts adopted have the characteristics such as anti-inflammatory sterilization and no skin allergy after use, and stay on the surface of the skin to kill the mites while preventing the regeneration of the mites.

The invention relates to an efficient household garbage pyrolysis gasification furnace system, and belongs to the technical field of household garbage incineration equipment. The pyrolysis gasification furnace system comprises a feeding bin, a double-roller feeding device, an upper flue, an upper cover, a furnace cover base, a furnace body, a furnace bar assembly, a furnace bar transmission device, a rotating platform, a furnace body transmission device, a furnace body supporting base, a bottom supporting base, a primary air supply pipeline, a slag discharging device, and a concrete water tank. The structure of the efficient household garbage pyrolysis gasification furnace system is novel, the operation is efficient and environment-friendly, and the system is suitable for efficient and environment-friendly small garbage treatment projects of small counties and towns in developed areas at home and abroad, is capable of treating 50-500 tons of household garbage everyday and is easy to use and popularize.

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 utilization method for generating electricity through environmental garbage. According to the comprehensive utilization method, a garbage heaping bin, a sterilization room, a cutting system, a mixing and stirring machine, a compressor, a drying chamber, a granulating machine, a fuel bin, a combustion chamber, a combustion improver bin, an adhesive bin, a boiler and a steam turbine are included; and flue gas is discharged through a chimney. Garbage is transformed into new fuel, the sanitary production requirement is met, the environment for follow-up garbage treatment is purified, the garbage is transformed into the new fuel to form tiny fuel of the unified specification to be conveyed to the fuel bin, fuel particles are thrown into the combustion chamber at a certain feeding speed by means of the fuel bin, heat is generated after fuel is combusted, steam is generated in the boiler, the steam turbine is pushed to rotate so as to generate electricity, the garbage polluting the environment is converted into the fuel for combustion, the garbage treatment problem is solved greatly, and quite considerable energy is obtained.

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 provides a treatment method for steel rolling waste oil. The method includes the following steps that: (1) a treatment liquid is added to waste oil, so that the treatment liquid can react with the waste oil until detection standards are satisfied, wherein the treatment liquid is a mixed acid; and (2) a reaction liquid in the step (1) is detected, if the pH value of the reaction liquid is less than 6.5, alkaline powder is added into the reaction liquid, so that the pH of the reaction liquid is adjusted to 7. With the method of the invention adopted, re-treatment devices such as adevice for additional distillation are not required; after the treating agent slowly reacts with the waste oil, and then the waste oil and impurities such as metal are converted into a water-soluble solution, and no waste smoke, waste residues, exhaust gas and odor are generated in a treatment process.

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 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.