摘要
旺苍县煤矿井下废水存在悬浮物、铁、重金属超标现象,25家煤矿中,20家达标,5家超标,治理步骤应当按照先预防、再利用、后治理的步骤进行,预防和整治重点首先应考虑工艺改革和技术革新,尽量少产生或不产生废水,其次是开展综合利用,化害为利,变废为宝,最后再采取物理、化学等传统工艺。
The concentration of suspended solids,iron,and heavy metal in the underground wastewater of 5 coal mines,among 25 mines in Wangcang Country,exceeds limits. Waste water treatment should be done in the procedure of prevention first,then recycling,and final treatment at last. The focus of prevention and treatment should be on improvement of craft and technology,trying to produce less or no waste water. Comprehensive utilization should be the second focus,aiming to make use of the waste. At last,traditional physical and chemical measures should be carried out to finish the treatment.
作者
边林
BIAN Lin(Wangcang County Environmental Protection Bureau,Wangcang 628200,Chin)
出处
《环境影响评价》
2018年第4期89-91,共3页
Environmental Impact Assessment
关键词
旺苍县
煤矿废水
调查分析
污染治理
Wangcang county
coal mine wastewater
investigation and analysis
pollution control
