矿山药剂二次污染链研究

本文证实:选矿药剂污染在光降解条件下,会产生二次污染物及向区域性污染甚至全球性污染转移的二次污染链。在光降解条件下:25#黑药会形成联苯及稠环芳烃以POPs的形式向全球性污染转移;含硫的捕收剂(黄药、SN9、苯并噻唑)会放出CS2汇入大气人为硫源污染中,最终影响全球性的气候变化及加重酸雨的形成,在含硫捕收剂降解时,还会形成大量带功能团的小分子有机物。它们汇入矿山性复合污染,加大这个污染体系中选矿药剂及选矿药剂与重金属复合污染的迁移与危害区域。

THE STUDY OF SECONDARY POLLUTANT CHAIN OF MINE REAGENT

It is substantiated in the study that the pollution caused by reagent for beneficiation in the condition of photodegradation will cause secondary pollutant and secondary pollutant chain which transfers to regionality and globalism.In the condition of photodegradation,aerofloat 25~# forms biphenyl and condensed aromatics which transfers to global pollution with POPs;collectors containing sulfur(xanthate,SN_9 and benzothiazole) can release CS_2 in the atmosphere and cause artificial sulfur pollution.It is ultimately caused that global climatic change is influenced and formation of acid rain is aggravated.When collectors containing sulfur degrade,lots of micromolecule organics with functional groups are produced.These micromolecule organics become a part of the mine complex pollution and extend the transferring and hazardous areas of complex pollution caused by reagent for beneficiation and reagent for beneficiation with heavy metal.