桂林理工大学学报2015，Vol.35Issue(3)：560-564,5.DOI:10.3969/j.issn.1674-9057.2015.03.021
蚯蚓对城市污水污泥中重金属的富集特征
Enrichment characteristics of earthworm on heavy metal in sludge from municipal sewage treatment plant
摘要
Abstract
Earthworm ( Eisenia fetida) was cultured in excess activated sludge from municipal sewage treatment plant of Guilin.Biomass change of earthworm was investigated.Content of heavy metal in earthworm and mix-ture after test was studied.Enrichment characteristics of earthworm of cadmium, zinc, copper and lead in ex-cess activated sludge were studied.Reuse of earthworm products characteristics after treatment was analyzed . The results show that weight increase of earthworm is extremely obvious after adding sludge.Heavy metal con-tent in the earthworms was much lower than that in mixture.The correlation between earthworm and mixture is positive for cadmium, copper and lead, and is negative for zinc.The enrichment comparative order is Cd>Pb>Zn>Cu.Heavy metal content in earthworm increased obviously after sludge added.Heavy metal content in products measured can meet the relevant national standards.关键词
蚯蚓/城市污水/污泥,重金属/富集Key words
earthworm/municipal sewage/sludge/heavy metal/enrichment分类
资源环境引用本文复制引用
魏明蓉,刘康怀,李艳红,马邦定..蚯蚓对城市污水污泥中重金属的富集特征[J].桂林理工大学学报,2015,35(3):560-564,5.基金项目
国家自然科学基金项目(41161075) （41161075）
广西高等学校高水平创新团队及卓越学者计划项目 （）
