Cu^(2+)与解偶联剂协同作用污泥减量化  

The synergy of copper ion and uncoupler for sludge reduction

作　　者：石先阳[1] 凌晨慧[1] 鲍婷[1] 谢继峰[1] 周芬[1] 盛雅琪[1] 

机构地区：[1]安徽大学资源与环境工程学院,安徽合肥230039

出　　处：《安徽大学学报（自然科学版）》2010年第5期94-97,共4页Journal of Anhui University(Natural Science Edition)

基　　金：国家自然科学基金资助项目(30770398);安徽省自然科学基金资助项目(070415218);安徽大学学生创新基金资助项目(30093)

摘　　要：研究不同初始浓度Cu2+、Zn2+和pNP对污泥增长率、污泥容积指数(SVI)的影响,对比分析Cu2+、Zn2+对污泥COD去除率的抑制作用.结果表明:随Cu2+、Zn2+及pNP浓度的增加,污泥增长率呈下降趋势,SVI值则变化较小,且三者最佳抑制浓度分别为9、15、20 mg.L-1.Zn2+对污泥分解有机物(COD去除)活性的抑制作用小于Cu2+.Cu2+-pNP共存时对污泥减量化作用更为明显,最佳抑制浓度比(Cu2+∶pNP)为9∶1.The effects of different initial concentrations of Cu2＋ , Zn2＋ and pNP on the growth rate of sludge and sludge volume index （SVI） were investigated. Comparative analysis was conducted to explore the inhibitory effects of Cu2 ＋ and Zn2 ＋ on COD removal rate. The results showed that the growth rate of sludge decreased with increase in the concentrations of Cue ＋ , Zn2 ＋ and pNP, where as a little change was observed in SVI. The optimal concentrations were 9 mg·L^-1 for Cu2＋ , 15 mg·L^-1 for Zn2＋and 20 mg·L-1 for pNP, respectively. The inhibitory effects of Zn2＋ on the activity of sludge for decomposing organic compound were lower than those of Cu2＋. The coexistence of Cu2＋ and pNP was favorable to the sludge reduction with an optimal concentration ratio of 9：1 for Cu2＋： pNP.

关 键 词：污泥减量化 重金属 解偶联剂 

分 类 号：X703[环境科学与工程—环境工程]