The world to reduce sulfur dioxide emissions, the main measures:
1. Coal desulfurization technology, coal can be removed in about 40% to 60% of the inorganic sulfur. Priority use of low sulfur fuels, such as low sulfur coal-and natural gas.
2. Improved coal technology, coal-burning process to reduce sulfur dioxide and nitrogen oxide emissions. For example, the liquid-based coal-fired technology is welcomed by the new technologies. It is mainly limestone and dolomite use added, and the sulfur dioxide reacts with calcium sulfate ash discharge. The formation of coal combustion flue gas emitted into the atmosphere before the FGD.
3. Currently the main use of lime, flue gas can be removed in 85% to 90% of the sulfur dioxide gas. However, the desulfurization effect was good but very expensive. For example, in thermal power plants to install flue gas desulfurization equipment costs, to achieve a power plant as much as 25% of the total investment. This is one of the main difficulties of acid rain control.
4. The development of new energy sources such as solar, wind, nuclear, flammable ice, but the current technology is not mature enough, if you are using will cause new pollution, and consumption is very high cost.
Protective measures air pollution
1. Rationalize industrial distribution and urban district function. Should be combined with urban planning, full consideration of the rational distribution of industry. Industrial areas should generally be configured in the edge of the city or suburbs, the location should be the next local maximum frequency of wind direction, wind direction, making exhaust sounded the least number of residential areas. Harmful to residential or construction of industrial enterprises.
2. Enhance greening. In addition to landscaping plant, but also can regulate the climate, blocking, filtering and absorption of dust, absorb the atmosphere of harmful gases and so on.
3. To strengthen the local residential area in the management of pollution sources. Such as restaurants, public bathroom, chimney, waste dumps, trash and other harmful gases pollute the atmosphere can be disseminated and affect the indoor air, health departments should work with authorities to strengthen management.
4. Control of coal pollution. ① using coal desulfurization technology, coal can be removed in about 40% a 60% inorganic sulfur. Priority use of low sulfur fuels, such as low sulfur coal-and natural gas. ② improved coal technology, coal-burning process to reduce sulfur dioxide and nitrogen oxide emissions. For example, the liquid-based coal-fired technology is welcomed by the new technologies. It is mainly limestone and dolomite use added, and the sulfur dioxide reacts with calcium sulfate ash discharge. The formation of coal combustion flue gas emitted into the atmosphere before the FGD. ③ the development of new energy sources such as solar, wind, nuclear, flammable ice, but the current technology is not mature enough, if you are using will cause new pollution, and consumption is very high cost.
5. Strengthen the technological measures. ① strengthening process. Adopt a non-toxic or low toxic materials to replace toxic raw materials. To closed loop to reduce the exclusion of other pollutants. ② to strengthen production management. Everything possible to prevent air pollution emissions into the atmosphere. ③ comprehensive utilization of waste to treasure. For example, a large number of power plant coal ash discharge can be made of cement, bricks and other building materials. Also recycled nitrogen, nitrogen and other manufacturing.
6. Regional central heating heating plant and the establishment of a large electric heating station, the implementation of the regional central heating heating, especially the thermal power plants, heating stations located in the countryside, the intensive short chimney, heating in winter to northern cities that is to remove dust for a very effective measure.
7. Transport emissions control. Reduce vehicle emissions. Is changed when the main combustion engine design and combustion to improve fuel quality, strengthen the traffic management. General automotive exhaust problem solving is often used to install auto catalytic converter, so that the fuel combustion, reducing harmful emissions. Catalytic converter used in high-temperature porous ceramic substrate, the coated fine dispersion of palladium and platinum, can be NOX, HC, CO, etc. Into nitrogen, water and carbon dioxide and other harmless substances. Alternatively, you can develop new fuels, such as methanol, ethanol and other oxygenated organic compounds, vegetable oil, and gas fuels, reducing exhaust pollution emissions. Used to control the development of private cars and expand the scope and capacity of subway transportation, use of green buses (using liquefied petroleum gas and compressed gas) and other environmentally-friendly vehicles is also an effective way to solve environmental pollution.
8. Chimney dust. Sulfur dioxide in flue gas control technology sub-dry (in solid powder or granular absorbent) and wet (with liquid as the absorbent) into two categories. The higher the high chimney flue chimney flue more conducive to the spread and dilution, generally more than 100m high chimney effect already is clear, sharp increase in high cost is not economical. It should be pointed out that this is a cost to expand the scope of pollution ways to reduce pollution of local ground.
1. Coal desulfurization technology, coal can be removed in about 40% to 60% of the inorganic sulfur. Priority use of low sulfur fuels, such as low sulfur coal-and natural gas.
2. Improved coal technology, coal-burning process to reduce sulfur dioxide and nitrogen oxide emissions. For example, the liquid-based coal-fired technology is welcomed by the new technologies. It is mainly limestone and dolomite use added, and the sulfur dioxide reacts with calcium sulfate ash discharge. The formation of coal combustion flue gas emitted into the atmosphere before the FGD.
3. Currently the main use of lime, flue gas can be removed in 85% to 90% of the sulfur dioxide gas. However, the desulfurization effect was good but very expensive. For example, in thermal power plants to install flue gas desulfurization equipment costs, to achieve a power plant as much as 25% of the total investment. This is one of the main difficulties of acid rain control.
4. The development of new energy sources such as solar, wind, nuclear, flammable ice, but the current technology is not mature enough, if you are using will cause new pollution, and consumption is very high cost.
Protective measures air pollution
1. Rationalize industrial distribution and urban district function. Should be combined with urban planning, full consideration of the rational distribution of industry. Industrial areas should generally be configured in the edge of the city or suburbs, the location should be the next local maximum frequency of wind direction, wind direction, making exhaust sounded the least number of residential areas. Harmful to residential or construction of industrial enterprises.
2. Enhance greening. In addition to landscaping plant, but also can regulate the climate, blocking, filtering and absorption of dust, absorb the atmosphere of harmful gases and so on.
3. To strengthen the local residential area in the management of pollution sources. Such as restaurants, public bathroom, chimney, waste dumps, trash and other harmful gases pollute the atmosphere can be disseminated and affect the indoor air, health departments should work with authorities to strengthen management.
4. Control of coal pollution. ① using coal desulfurization technology, coal can be removed in about 40% a 60% inorganic sulfur. Priority use of low sulfur fuels, such as low sulfur coal-and natural gas. ② improved coal technology, coal-burning process to reduce sulfur dioxide and nitrogen oxide emissions. For example, the liquid-based coal-fired technology is welcomed by the new technologies. It is mainly limestone and dolomite use added, and the sulfur dioxide reacts with calcium sulfate ash discharge. The formation of coal combustion flue gas emitted into the atmosphere before the FGD. ③ the development of new energy sources such as solar, wind, nuclear, flammable ice, but the current technology is not mature enough, if you are using will cause new pollution, and consumption is very high cost.
5. Strengthen the technological measures. ① strengthening process. Adopt a non-toxic or low toxic materials to replace toxic raw materials. To closed loop to reduce the exclusion of other pollutants. ② to strengthen production management. Everything possible to prevent air pollution emissions into the atmosphere. ③ comprehensive utilization of waste to treasure. For example, a large number of power plant coal ash discharge can be made of cement, bricks and other building materials. Also recycled nitrogen, nitrogen and other manufacturing.
6. Regional central heating heating plant and the establishment of a large electric heating station, the implementation of the regional central heating heating, especially the thermal power plants, heating stations located in the countryside, the intensive short chimney, heating in winter to northern cities that is to remove dust for a very effective measure.
7. Transport emissions control. Reduce vehicle emissions. Is changed when the main combustion engine design and combustion to improve fuel quality, strengthen the traffic management. General automotive exhaust problem solving is often used to install auto catalytic converter, so that the fuel combustion, reducing harmful emissions. Catalytic converter used in high-temperature porous ceramic substrate, the coated fine dispersion of palladium and platinum, can be NOX, HC, CO, etc. Into nitrogen, water and carbon dioxide and other harmless substances. Alternatively, you can develop new fuels, such as methanol, ethanol and other oxygenated organic compounds, vegetable oil, and gas fuels, reducing exhaust pollution emissions. Used to control the development of private cars and expand the scope and capacity of subway transportation, use of green buses (using liquefied petroleum gas and compressed gas) and other environmentally-friendly vehicles is also an effective way to solve environmental pollution.
8. Chimney dust. Sulfur dioxide in flue gas control technology sub-dry (in solid powder or granular absorbent) and wet (with liquid as the absorbent) into two categories. The higher the high chimney flue chimney flue more conducive to the spread and dilution, generally more than 100m high chimney effect already is clear, sharp increase in high cost is not economical. It should be pointed out that this is a cost to expand the scope of pollution ways to reduce pollution of local ground.
