摘要采用活性污泥为吸附剂,对3种重金属离子Cu2+、Zn2+和Cd2+进行吸附.结果表明,活性污泥对重金属离子吸附很快,前4 m in时的去除率和吸附量上升最快;常温范围内,温度对活性污泥吸附金属的影响并不显著,而体系PH值和吸附剂投加量的影响较为重要,活性污泥对3种重金属离子的吸附都符合Langmu ir模型.
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