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 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 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 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.

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 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 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 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.