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SYSTEM FOR TREATING COAL GASIFICATION WASTEWATER AND METHOD FOR TREATING COAL GASIFICATION WASTEWATER
SYSTEM FOR TREATING COAL GASIFICATION WASTEWATER AND METHOD FOR TREATING COAL GASIFICATION WASTEWATER
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机译：处理煤气化废水的系统及处理煤气化废水的方法
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摘要
It is possible to efficiently remove the cyanide compound, the fluorine compound, the selenium compound, the ammonia nitrogen and the COD component contained in the coal gasification wastewater to obtain a good treated water quality, and also to produce coal having a low content of harmful substances in the generated sludge, Thereby providing a treatment system for gasification drainage. (10) for decomposing at least a cyanide compound, an ammonia nitrogen and a COD component by a high temperature alkali chlorination treatment in which an oxidizing agent is added and reacted under a warm condition, and at least one of an aggregation precipitation treatment and an adsorption treatment A selenizing device 52 for removing the selenium compound by at least one of a treatment for removing at least fluorine compounds, a reducing treatment for removing the reduced selenium compound after the reduction of the selenium compound, and an adsorption treatment, And a fluorine processing unit 50 and a selenizing unit 52 at the rear end of the high temperature alkaline chlorination unit 10.
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