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Course of China′s control over sulphur dioxide pollution and proposals concerned

MIAO Tian cheng  
Serious atmospheric pollution because of SO 2 emission in China is reviewed. There are three main sources of SO 2.They are separatly from sulphuric acid production, nonferous metallurgy and coal fired kilns and boilers. Among them the most polluting is flue gas from coal fired kilns and boilers,especially from large sized coal fired power plants,which has large quantity,covers wide area and consequently is much more difficult to abate. The detailed circumstances in control of SO 2 emission are described and 11 desulphurization processes which have proved effective and have had full technical scale demonstration plants are presented. Some proposals concerning abatement of SO 2 in large sized coal fired power plants are put forward.
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