污水处理中的硫化法除砷

Arsenic Removal by Sulfidation in Wastewater Treatment

砷在自然界中普遍存在,砷的化合物有很强的毒性,进入环境中会对人们的生产生活造成很大的危害。介绍了中和硫化法、浮选硫化法、重金属捕集剂硫化法、微生物硫化法的除砷工艺,同时分析了硫化法除砷的特点,综述了当前国内外硫化法除砷技术的研究现状,并对砷治理的发展趋势及应用前景进行了分析和展望。

Arsenic is ubiquitous in nature.Arsenic compounds have strong toxicity,and entering the environment will cause great harm to people's production and life.In this paper,the arsenic removal process of neutralization sulfidation,flotation sulfidation,heavy metal capture agent sulfidation and microbial sulfidation was introduced,and the characteristics of arsenic removal by sulfidation were analyzed.The current research status of arsenic removal technology by sulfidation at home and abroad was reviewed,and the development trend and application prospect of arsenic treatment were analyzed and prospected.