摘要
[目的]研究黑曲霉菌对污泥中重金属的淋滤效果。[方法]采用分批摇床培养,研究了淋滤时间、污泥含量、接种量、初始pH以及碳源浓度对污泥中重金属去除率的影响。[结果]淋滤体系控温30℃、碳源含量8%、接种量为2×106个(孢子)/L、污泥含量1.0%的条件下,经过12 d的淋滤处理,黑曲霉对污泥中Zn、Cd、Cu、Pb的去除率分别可达到83.6%、87.8%、70.4%和75.6%。[结论]黑曲霉淋滤法可有效去除污泥中的重金属。
[Objective] The research aimed to study leaching effect of the heavy metal in sludge by A.niger.[Method] By using batch shaking culture,influences of the leaching time,sludge content,inoculum concentration,initial pH and carbon concentration on removal rate of the heavy metal in sludge were studied.[Result] A.niger was cultivated under the conditions of temperature of 30 ℃,carbon concentration of 8%,inoculum concentration of 2×106 spores/L,and sludge content of 1.0% for 12 d.Result showed that removal rates of the Zn,Cd,Cu and Pb in sludge by A.niger were respectively 83.6%,87.8%,70.4% and 75.6%.[Conclusion] Bio-leaching by A.niger could effectively remove heavy metal in sludge.
出处
《安徽农业科学》
CAS
2013年第8期3567-3569,共3页
Journal of Anhui Agricultural Sciences
关键词
黑曲霉菌
污泥
重金属
单因子试验
A.niger
Sludge
Heavy metal
Single-factor experiment
