生物浸出污泥重金属研究进展

Bioleaching of Heavy Metals from Sludge: A Review

污泥是由污水处理过程中形成的沉淀物,具有含水率高、有机物含量高、重金属含量高等特点,其中重金属污染控制一直是污泥处理处置的难点。生物浸出技术具有耗酸少,运行成本低,重金属去除率高,无二次污染等优点被广泛应用。本文论述了生物浸出技术的浸出菌种,影响因素,研究现状及应用,展望了生物浸出技术研究的重点。

Sludge was generated during the wastewater treatment process. It contained high water content, high organic matter content, high heavy metal content, especially the environmental risk of heavy metals in sludge is the bottleneck of the sludge disposal. Bioleaching method has received comprehensive attention with many excellent features such as low acid consumption, low cost bio-additive, high removal rate and no secondary pollution. The study was discussed bioleaching strains, influence factors, research status and its applications, outlooked bioleaching method research emphasis.