摘要
The agricultural use of municipal sludge as fertilizer appears to be the most alternative owing to its abundant N,P,K, and organic matters from an economic perspective. The presence of the elevated concentration of heavy metals, however, represents a serious constraint to implementation of this practice. Microbiological leaching for heavy metal removal from sludge is used for this reason. The principle, efficiency and effect factors of this method are discussed. Fig 2, Tab 1, Ref
The agricultural use of municipal sludge as fertilizer appears to be the most alternative owing to its abundant N,P,K, and organic matters from an economic perspective. The presence of the elevated concentration of heavy metals, however, represents a serious constraint to implementation of this practice. Microbiological leaching for heavy metal removal from sludge is used for this reason. The principle, efficiency and effect factors of this method are discussed. Fig 2, Tab 1, Ref 36
出处
《应用与环境生物学报》
CAS
CSCD
2001年第5期511-515,共5页
Chinese Journal of Applied and Environmental Biology
基金
国家自然科学基金 (39870 4 35)
广东省自然科学基金 (970 0 1 1 )
广东省环保科技研究开发基金 (粤环 1 997 1 6)
广州市科委重点攻关项目
广州市环保局科技项目资助
关键词
城市污泥
重金属
微生物淋滤
农用资源化
municipal sludge
heavy metal
microbiological leaching
agricultural use
