46results about How to "Realize secondary pollution" patented technology

The invention discloses a special container device for an antifouling energy-saving water machine. The special container device comprises a purified water container for storing purified water, wherein the purified water container is provided with a water inlet which also serves as a water outlet; the water inlet of the purified water container is hermetically connected with water inlet and outlet pipelines; the water inlet and outlet pipelines are communicated with a water inlet pipe and a water outlet pipe respectively; the water inlet pipe is provided with a pressure control switch, and the pressure control switch can detect the change of pressure in the purified water container and automatically open or close the water inlet pipe passage; and the volume and the capacity of the purified water container can be expanded and shrunk together with the magnitude change of the stored water quantity in the purified water container. The traditional plastic barrel is replaced by adopting a special film bag and used as the purified water container; by automatic shrinkage and expansion of the purified water container, the possibility that the purified water in the container is directly contacted with the air is effectively avoided, so that secondary pollution is reduced and even eliminated; and the special container device has the advantages of simple structure, strong antifouling capacity, high automation degree and the like.

The invention discloses a biomass stress-free gas producing machine which comprises a machine, an air inlet oxygen-feeding device, a rotary dedusting device and a circulating hot water supply device; the biomass stress-free gas producing machine is characterized in that the machine is internally provided with a gas producing collision reaction device and more than one set of parallel-connected orserially-connected gas producing reaction device; each set of gas producing reaction device comprises a gasification furnace, a wastewater and tar high-temperature pyrolysis reaction device and a swaging actuating device; the wastewater and tar high-temperature pyrolysis reaction device is filled with dolomite; the secondary pure gas output tubes arranged at the bottom of each set of the wastewater and tar high-temperature pyrolysis reaction device are connected with the bottom of the collision reaction device after serially connected or parallel connected subsequently. The biomass stress-free gas producing machine is a novel gasification device to carry out second decomposition on the wastewater and tar by using the high-temperature chemical reaction of the wastewater and tar and the dolomite, which takes the dolomite as medium to carry out decomposition on the wastewater and tar by high temperature, so as to actually achieve the goals of zero emission, no secondary pollution, green environmental protection and large-scale gas production in the biomass gas producing technology.

The invention discloses a method for treating incineration tail gas of solid hazardous waste, comprising the following steps of: (1) taking manganese dioxide as the oxidant, adding water to prepare a sizing agent; (2) delivering the size into the smoke absorption tower, spraying the sizing agent in mist, wherein the pressurized smoke with the wind pressure of 1500-5000pa is introduced from the bottom of the tower, the gas inlet tubes are dispersed tubes under the liquid level of the recovery liquid at the tower bottom, wherein the temperature T of the tower bottom recovery liquid is controlled to be not below 5 DEGC and not above 90 DEG C, and the pH value is not less than 3.8; (3) separating the precipitation from the recovery liquid at the tower bottom, preparing manganese sulfate via the solution, and recovering the heavy metal from the bottom dross; (4) discharging the tail gas which is up to the standard. The method for treating incineration tail gas of solid hazardous waste has simple process flow, non-fouling equipment, smooth circulation, less equipment, and low operation cost; and the composite rate of removing the harmful substances reaches 98.5%. The heavy metals can be recovered from the bottom dross; the recycle and the harmlessness can be realized without secondary pollutant products.

The invention relates to the desulfurization and denitrification process technology for air pollution control in the field of environmental protection, aiming at the problem that the existing ammonium-fertilizer method desulfurization technology recycles ammonium sulfate fertilizer with high production cost and the quality of the recovered ammonium sulfate product is low and the semi-dry ammonia method Desulfurization technology causes secondary pollution to the environment. The present invention proposes a wet ammonia desulfurization process for recycling high-quality ammonium sulfate fertilizers with low energy consumption. It uses ammonia water as a desulfurizer and generates flue gas after two-stage full desulfurization. Ammonium sulfite is subjected to two-stage oxidation outside the tower, so that ammonium sulfite can fully react to generate ammonium sulfate, and the generated ammonium sulfate solution is contacted with high-temperature flue gas to exchange heat, so as to cool down the flue gas while concentrating the ammonium sulfate solution. Thereby greatly saving the cost of making ammonium sulfate fertilizer products by evaporation and drying. Therefore, the technical solution of the present invention not only recycles fertilizer ammonium sulfate products with high quality, but also has low recycling cost. secondary pollution.