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Exhaust refers harm to human health and the surrounding environment of the material caused by pollution of the atmosphere, these substances may be gas, solid or liquid suspended solids, although not to the inhaled exhaust fumes have an immediate impact, but in the long run, still hazardous to human health. The air we breathe every day, is composed by a variety of chemical substances. In fact, the emission is mainly aimed for the ship turbines, whenever the ship moving commissioning, the chimneys black smoke, in addition to harmful to the body, the owner is the most troublesome fine, so effectively improve combustion, can greatly reduce the so-called black smoke. Diesel engine thermal efficiency, the economy is good, in ships, automobiles, construction machinery and other fields are widely used. But for the atmospheric environment and human health is seriously affected, so emissions by more stringent restrictions. For these emissions, an effective treatment must be done, this paper discusses a variety of flue gas desulfurization and denitrification oxidation reduction method. International Maritime Organization (IMO) in addition to efforts to develop ship navigation safety related international conventions, but also noted the ship to the environment caused by pollution is getting worse. China must in regulations, standards and technology research and development aspects of the starting point should be increased efforts to keep pace with the international.
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