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垃圾渗滤液的混凝-吸附预处理研究
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【给水工程论文】摘要:研究表明,采用PAC作混凝剂、焦炭作吸附剂,可有效去除渗滤液中的COD和各部分重金属子。PAC和焦炭投量分别为400mg/L和8~10g/L时,COD去除率达58.9%,重金属离子的去除率均达60%左右,其中对Cu的去除近100%。混凝和吸附对各污染物的去除具有互补性,因而此工艺具有良好的运行灵活性和稳定性。混凝对渗滤液色度具有明显的去除效果(68%);焦炭吸附中存在明显的竞争现象,其中对COD的吸附具有明显的竞争优势。 关键词:垃圾渗滤液 物化预处理 PAC 焦炭 Pretreatment of Landfill Leachate by
Coagulation-Adsorption Process SHEN
Yaoliang1,YANG Quanda1,WANG
Baozhen2 (1.Depart.of Environ.Protection, Suzhou
Institute of Urban Construc. and Environ. Protection,Suzhou
215011,China;2.School of Munic.and Environ.Eng., Harbin
Univ. of Civil Eng. and Architec.,Harbin 150008,China) Abstract:A study on the pretreatment of landfill
leachate by coagulationadsorption was carried out and
reported in this paper. The result
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