环境工程学报2012，Vol.6Issue(10)：3623-3628,6.
污泥活性炭对复合染料的脱色及其重金属浸出毒性
Decoloration on complex dyes and heavy metals leaching of activated carbon from sewage sludge
摘要
Abstract
Activated carbons from sewage sludge were used to treat complex dyes wastewater of methenyl blue and acid magenta.The effects of pH,temperatures and adsorption times on the decoloration rates were investigated.The leaching concentrations of heavy metals were analyzed.The results show that the decoloration rates of complex wastewater from methenyl blue and acid magenta are much higher than those of methenyl blue or acid magenta only.The effect of pH on the decoloration rates is difficult to be explained.Competitive adsorption of methenyl blue and acid magenta appears on the activated carbons from sewage sludge.The adsorption of complex wastewater from methenyl blue and acid magenta follows Langmuir isotherm.The leaching concentrations of Cd,Zn and Cr increase with treatment time.The leaching concentrations all meet the standard for hazardous wastes in China.However,the leaching concentrations of Cr nearly arrive the limit of the standard.关键词
污泥活性炭/染料/脱色/重金属浸出毒性Key words
activated carbon from sewage sludge/dye/decoloration/heavy metals leaching分类
资源环境引用本文复制引用
范晓丹,康婷婷,尹乐,王睿,杨慧,孟晓苓,徐廷献..污泥活性炭对复合染料的脱色及其重金属浸出毒性[J].环境工程学报,2012,6(10):3623-3628,6.基金项目
天津市应用基础及前沿技术研究计划资助项目 （）
天津城市建设学院学生科技活动基金资助项目 （）
