物;Coking residuary water contains phenol and cyanogens, which contaminate water source badly. Therefore, the coking residuary water has to be dealt with and discharged.
、
污水的来源很
,对水源污染严
,污水必须加以处理,合格后才能排放。
Coking residuary water contains phenol and cyanogens, which contaminate water source badly. Therefore, the coking residuary water has to be dealt with and discharged.
、污水的来源很,对水源污染严,污水必须加以处理,合格后才能排放。
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