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有机改性成都粘土预处理垃圾渗滤液

Keywords: 垃圾渗滤液,成都粘土,HDTMA,氨氮,COD

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Abstract:

以成都粘土为原料,十六烷基三甲基溴化铵(HDTMA)为改性剂制备有机改性土,并将其应用于垃圾渗滤液的预处理。采用单因素静态吸附实验,以粘土对垃圾渗滤液COD和氨氮的去除率作为考查指标,初步探究有机改性土预处理垃圾渗滤液的适宜条件;并对有机改性粘土及原土进行性能表征,初步分析其吸附机理。研究结果表明,有机土的处理效果明显优于原土,处理效果上比原土提高了1.6~2.3倍;有机土预处理垃圾渗滤液适宜条件为:投加量120g/L、搅拌速度200r/min、搅拌时间50min、pH=7、静置时间为6h。

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