我国治理二氧化硫污染的历程和建议

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

论述我国SO2 对大气环境造成的严重污染。我国主要的SO2 污染源可归纳为三个方面 :硫酸厂排放的SO2 ,有色金属冶炼过程排放的SO2 和燃煤窑炉排放的SO2 。其中以燃煤窑炉排放的SO2 最为严重 ,尤其是大型燃煤发电厂排放的SO2 ,量大面广 ,治理难度最大。文章重点叙述了三个污染源治理过程的详细情况 ,并列出 11种行之有效并已建成工业规模示范装置的燃煤脱硫技术 ,可供选择。最后对大型燃煤发电厂SO2

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.