矿山酸性废水的治理及综合回收

来源期刊：中南大学学报(自然科学版)1996年第4期

论文作者：龚竹青 黄坚 蒋汉瀛

文章页码：432 - 435

关键词：矿山废水; 硫化氢; 铜

Key words：mine wastewater; hydrogen sulfide; copper

摘    要：研究了PH值、中和剂、硫化物等对沉淀除去酸性矿山废水中有害金属离子的影响以及回收废水中重金属离子的可能途径.确定了CaCO₃除铁－H₂S沉铜、锌－石灰乳中和絮凝沉淀处理矿山酸性废水的工艺.出水水质可达到国家排放标准.硫化渣中含铜量达32%,含锌量7.2%,可以综合回收铜、锌等有价金属.

Abstract: Impact of precipitating on removing harmful metal ion in the acid mine wastewater with pH neutralizer and sulfide was studied. The possible way of retrieving heavy metal ion in wastewater was probed. The techniques for lime carbonate to reject iron for hydrogen sulfide to precipitate copper and for zinc-lime cream neutralization flocculation to treat, mine acid wastewater were chosen. The final water quality may reach national effluent standard; the copper content was 32% in the sulfide slag.