摘要
分别以好氧颗粒污泥和絮状污泥为吸附剂,在不同的吸附条件(pH值、吸附时间、吸附温度、不同浓度离子共存)下,探讨对Cu^(2+)和Cr^(6+)的吸附效果。试验结果显示,两种形态污泥对Cu^(2+)的吸附能力较强,其中颗粒污泥最佳吸附条件为pH值为7.1,吸附时间30 min,温度30℃,而絮状污泥在弱酸的环境下(pH值为4~7.1)对Cu^(2+)的吸附效果较好;在上述条件下,絮状污泥和颗粒污泥对Cu^(2+)的吸附量分别为22.26 mg/g和23.62 mg/g;Cu^(2+)的存在有利于污泥对Cr^(6+)的吸附,反之则不然。
The biosorption of Cu^2＋ and Cr^6＋ by aerobic granular sludge and flocculent sludge were respectively investigated under different conditions （pH value, adsorption time and temperature, the coexistence of different concentrations of ions）. The results showed that two types of sludge have better adsorption abilities on Cu^2＋, the maximum biosorption value of granular sludge was obtained at pH of 7.1, adsorption time of 30 min and temperature of 30℃, under weakly acidic environment, the Cu^2＋ adsorption efficiency of flocculent sludge was better than that of granular sludge, in these absorption conditions the adsorbing capacities of Cu^2＋ by flocculent sludge and granular sludge were 22.26 mg/g and 23.62 mg/g respectively and further the presence of Cu^2＋ was in favor of the adsorption of Cr^6＋ but not vice versa. Key Words flocculent sludge granule sludge adsorption conditions Cu^2＋ Cr^6＋
作者
汪心怡
朱雷
但冰松
李琳
蔡嘉庆
刘小英
匡海龙
WANG Xinyi(School of Urban Construction, Wuhan University of Science and Technology Wuhan 430065)
出处
《工业安全与环保》
北大核心
2017年第9期1-3,7,共4页
Industrial Safety and Environmental Protection
基金
国家自然科学基金(41140731)
武汉理工大学自主创新研究基金项目(2014-TJ-B2-05)
作者简介
汪心怡，女，1992年生，硕士研究生，主要研究方向为水处理理论与技术。
通讯作者刘小英，副教授，电子邮箱：xy2000225@sohu．com。
