生物硫酸盐还原过程及其在重金属废水处理中的应用

Biological Sulfate Reducing Process and Its Application in Heavy Metal Wastewater Treatment

随着经济发展,有色金属冶炼、电镀行业等行业中排放的大量含重金属离子废水造成了严重的环境污染问题,废水的重金属污染治理已成为环境工程界普遍关注的问题。硫酸盐还原微生物可以还原硫酸盐生成硫化物,进而沉淀去除重金属,成为利用生物硫酸盐还原过程处理重金属污染的核心技术。文章总结了生物硫酸盐还原过程的特征及其影响因素,阐述了利用该过程处理重金属废水开发的各类工艺特色,并对利用硫酸盐还原微生物处理重金属废水的技术工艺进行了分析和展望。

With the economic development in China, industries such as nonferrous metal smelting, electroplating and so on discharged wastewater containing a large number of heavy metals, which caused serious enviroumental pollution problems. Treatment against heavy-metal-contaminated wastewater has become a common concern in the environmental engineering fields. Generally, sulfate-reducing microorganisms reduce sulfate into sulfides and lead to the precipitation and removal of heavy metals from wastewater, which play a core role in the technology of bio-sulfate reduction process dealing with heavy metal pollution. The characteristics of BSRP and related factors were summarized in detail. Moreover, the features of various technologies utilizing BSRP in application and its related factors were discussed. And the technical process of treating heavy metal wastewater with sulfate-reducing microorganism was analyzed and forecasted.