36results about How to "Reduce landfill volume" patented technology

The invention relates to a cat litter for pets and a preparation method thereof. % Prepare the materials, pulverize the organic base material into granules finer than 30 meshes, process the clay into fine powders finer than 200 meshes, take the organic base material and clay in proportion to process the cat litter matrix, and then mix and stir the remaining materials to cover the surface. To mix the material, put the cat litter matrix into a high-speed rotary vibrating machine to rotate and vibrate to make the water vapor in the matrix seep out and adhere to the surface of the matrix, then add the surface to cover the mixed material, and then sieve and dry after a little vibration and mixing. The granules are sieved to remove powder and packaged for storage. It has good deodorizing effect, good particle agglomeration after use, will not cause the consolidation of pellets to break when cleaning waste cat litter, easy to clean, waste cat litter can be burned, which is beneficial to environmental protection, and the product and production cost are low. Cat litter for pets and preparation method thereof.

The invention relates to a garbage burning fly ash sintering harm-eliminating resource-utilization treatment technology. According to the invention, garbage burning fly ash is mixed with premixed coal and auxiliary materials; the mixture is granulated and shaped; and the material is dried and is sintered in a rotary kiln. During the sintering process, when the temperature is increased and a coal ignition point is reached, the premixed coal is spontaneously combusted. Therefore, external coal dose can be reduced. Initial combustion of the premixed coal can provide a reductive atmosphere, such that dechlorination and detoxification of dioxin in fly ash can be benefited. Large amount of gas is produced by subsequent combustion, such that dust pores and holes are produced on inner and outer parts of the sintered body, and heavy metal volatilization can be promoted, and fly ash sintered body with low heavy metal content and leaching amount can be obtained. The sintered body has no potential harm to the environment, such that fly ash harm-eliminating and resource-utilization are sufficiently realized. During the processing process, smoke and secondary fly ash production amounts are low, and heavy metal and acidic component contents are high. In deacidification and heavy metal stabilization processes, agent utilization rate is improved. Compared with a traditional original fly ash curing / stabilizing process, a landfill amount can be reduced by 80-90%, such that pressure caused by serious landfill space shortage can be effectively relieved.

The invention discloses a concrete mixing station made of building waste. The concrete mixing station comprises an aggregate feeding system, a weighing system, a lifting system, a mixer system and a control system. The aggregate feeding system comprises a primary pulverizer, a double-deck vibrating screening machine, a conveying unit, a secondary pulverizer and a receiving water tank. The weighing system is a belt weigher. The lifting system is a bucket lifter. The conveying unit comprises a first conveying belt, a second conveying belt and a third conveying belt. The concrete mixing station is made of the building waste, and secondary utilization of the building waste is achieved; not only is the burying amount of the building waste decreased, but also environmental pollution is relieved, and raw materials can be provided for concrete production, so that the large-scale production requirement for concrete is met.

The invention discloses an on-site ectopic enhanced aerobic stabilization method for a household garbage landfill, and belongs to environmental engineering. According to the method, the staged stepwise excavation is adopted, and the operation can be performed synchronously or in stages, so that the operation progress is guaranteed and the operation efficiency is improved; the material sorting is performed on excavated stale garbage, so that the resource utilization and the safe treatment of the garbage can be realized; and therefore, the landfill amount of the stale garbage is reduced, the space utilization efficiency of the household garbage landfill is improved, the oxidation rate of sorted muck is improved in a natural drying or forced ventilation mode, and the muck stabilization time is shortened. The sorted muck is subjected to backward stepwise backfill, so that the stability of the landfill is improved, the stabilization rate of the stale garbage is accelerated, the sanitary environment of the landfill is improved, and the requirement on special equipment is low; and the method is applicable to fast stabilization and restoration engineering for the simple household garbage landfill.

The invention discloses a hazardous waste melting disposal method, which belongs to the field of hazardous waste treatment. The invention can simultaneously process solid organic hazardous waste, liquid organic hazardous waste and solid inorganic hazardous waste. The main steps of the present invention include: reducing and pretreating solid organic hazardous waste, concentrating and pretreating liquid organic hazardous waste, batching, mixing, and forming solid inorganic hazardous waste, flux, and reducing agent to obtain agglomerate materials, and The bulk material and the intermediate product obtained in the pretreatment step are transferred to an oxygen-enriched side-blowing melting treatment furnace for melting treatment, and the crude metal ingot and vitreous water-quenched slag products are obtained from the melting treatment. The flue gas generated by melting treatment is subjected to secondary combustion, heat energy recovery, and flue gas purification to meet the standard discharge. The invention has a wide application range of raw materials and can completely realize the safe disposal and recycling of hazardous wastes.

The invention discloses hazardous waste disposal equipment. The hazardous waste disposal equipment comprises a rotary kiln, a rolling device, a cooling device, a discharge device and a fixed bearing device which are arranged in sequence. The rolling device, the cooling device and the discharge device are all mounted at a discharge port of the rotary kiln through the fixed bearing device. The rolling device comprises a rolling hopper. The rolling hopper comprises a square hopper and a trapezoidal discharge port. The cooling device comprises a cylindrical hopper and a circular-truncated-cone-shaped hopper which are integrally formed. The discharge device comprises a first barrel-shaped hopper and a second barrel-shaped hopper. The first barrel-shaped hopper and the second barrel-shaped hopper communicate and are perpendicular to each other. Through the hazardous waste disposal equipment, hazardous waste is incinerated in the rotary kiln; gas gets into a secondary combustion chamber to conduct treatment; waste residues fall into the rolling device to be rolled; the cooling device implements air cooling through a cooling air inlet pipe and conducts cooling and dehumidification on the waste residues at maximum efficiency; the landfill volume is reduced, and the cost is lowered.

The invention discloses a construction method for an incinerated garbage ash pile, and belongs to the technical fields of solid waste resource utilization and foundation treatment. The construction method is used for solving the problem of waste utilization of incinerated garbage ash and is characterized by comprising the following steps that a, a steel pipe 2 provided with a concrete precast piletip 1 sinks into a foundation 3 so that a pile hole can be formed; b, bacteria liquid, medium sand and the incinerated garbage ash are uniformly mixed at first and then added with a 0.05 mol / L calcium chloride solution to be mixed into a mixture; c, the mixture is poured into the steel pipe 2 sinking into the foundation in advance, and a grouting pipe 4 and a grout extracting pipe 5 are buried inthe mixture 6 in the mixture filling process; d, after the pile hole is filled with the mixture 6, the steel pipe 2 is pulled out; e, liquid in pores of the mixture in the pile hole is completely extracted through the grout extracting pipe 5, then, consolidating fluid is injected through the grouting pipe 4 till the pores of the mixture in the whole pile hole is full of the consolidating fluid, and still standing is conducted for 6-24 h; and f, the step e is repeated for 4-6 times, and construction of the incinerated garbage ash pile is completed.

The invention discloses a stock garbage in-situ resourceful treatment method and a stock garbage in-situ resourceful treatment system. The system comprises a garbage temporary storage area, a plate feeder, a first breaking device, a drum screen, an air separation device, a second breaking device, a first magnetic separation device, a tension and relaxation screen, an aerobic biological drying reactor, an organic fertilizer compressing and packing device, a second magnetic separation device, a liquid type drum screen, a dewatering device, a percolating liquid treatment system and a deodorization system; garbage in the garbage temporary storage area is transported to the plate feeder; the plate feeder is sequentially connected with the first breaking device and the drum screen; a first outlet of the drum screen is connected with the air separation device; a first outlet of the air separation device is connected with the second breaking device; a second outlet of the air separation deviceis sequentially connected with the second magnetic separation device, the liquid type drum screen and the dewatering device; an outlet of the dewatering device is connected with a first inlet of theaerobic biological drying reactor; a second outlet of the drum screen is connected with the first magnetic separation device and the tension and relaxation screen; an outlet of the tension and relaxation screen is connected with a second inlet of the aerobic biological drying reactor; an outlet of the aerobic biological drying reactor is connected with the organic fertilizer compressing and packing device; the aerobic biological drying reactor is further connected with the percolating liquid treatment system and the deodorization system; and the garbage temporary storage area is further connected with the percolating liquid treatment system. Production of secondary pollution can be completely prevented, and highly-resourceful utilization of the stock garbage can be achieved.