废水的循环利用,不但可以防止公害的产生,而且能充分利用废水中残留的选矿药剂,降低药剂费用和抽取新鲜水的费用,对水源不足的选厂就具有更大的意义。日本选厂废水循环使用的办法很多,以下介绍其中几种简便易行的方法。茂住选矿厂的废水pH值在9～11之间,历来任其流放。从1972年6月开始,该厂将废水的pH值调整到近乎新水的pH值,然后返回作为选矿用水。办法是将废水经矿泥 Wastewater recycling, not only to prevent the emergence of pollution, but also to make full use of residual beneficiation in waste water to reduce drug costs and the cost of extracting fresh water, water shortage of the election plant has more significance. There are many ways to recycle selected wastewater from Japan’s factories. Here are some simple and easy ways to do this. Mau lived in the beneficiation plant wastewater pH value between 9 and 11, has always been its exile. Beginning in June 1972, the plant adjusted the pH of the wastewater to a pH near fresh water and then returned for mineral processing. The solution is to waste water through the mud