四川环境2012，Vol.31Issue(3)：1-4,4.
超声波去除农用污泥中重金属的试验研究
Study on Removing Heavy Metals in Farming Sludge Using Ultrasonic
摘要
Abstract
The high concentrations of heavy metals in the sludge from sewage treatment plants limit the application for fanning land. The heavy metals such as Cu, Zn, Ni and Pb were used as object to study the effect of ultrasonic on heavy metal removal in sludge. The result showed that ultrasonic effect to remove the heavy metals from sludge. When the reaction time was 30 minutes, the removal efficiencies of soluble Cu, Zn, Ni and Pb were 42. 1%, 37.5%, 12. 7% and 14. 7%, respectively, the corresponding removal efficiencies of total Cu, Zn, Ni and Pb were 52. 7%, 44. 7%, 23. 6% and 71%, of which most of the extracted Pb existed in the state of colloid with little part in soluble state. Meanwhile the metals else existed in soluble states.关键词
超声/污泥/重金属Key words
Ultrasonic/sludge/heavy mentals分类
资源环境引用本文复制引用
陈汉龙,严媛媛..超声波去除农用污泥中重金属的试验研究[J].四川环境,2012,31(3):1-4,4.基金项目
国家水污染控制与治理科技重大专项（2011ZX07303-004）. （）
