摘要
针对某铅锌矿尾矿废水高Pb和高pH值的特点 ,研究添加硫化钠沉淀 -斜板沉淀箱澄清 -砂滤池过滤 -硫酸中和外排的废水处理工艺。尾矿水pH在 12左右 ,含铅 3 0 0～ 40 0mg/L。治理后的外排水pH在 6～ 9,含铅 <1mg/L 。
The wastewater treatment process in a Lead zinc Mine using deposition of lead ion with sodium sulfide settlement in KLMZ Lamella filtering through sand filter neutralization by sulfuric acid is investigated based on the features of high lead content and high pH. The pH is about 12 and lead content is 300～400mg/L in the wastewater. The pH is 6～9 and lead content is less than 1mg/L in the drainage,according with the national discharge standard.
出处
《有色金属》
CSCD
2002年第2期108-110,121,共4页
Nonferrous Metals
