垃圾渗滤液的加载磁絮凝预处理工艺研究.pdf

文档介绍：,
第 5 卷第 10 期环境工程学报 Vol. 5 No. 10
2 0 1 1 年 1 0 月 Chinese Journal of Environmental Engineering Oct. 2 0 1 1
垃圾渗滤液的加载磁絮凝预处理工艺研究
曾慧峰孙春宝王然米丽平张银平
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北京科技大学土木与环境工程学院北京 100083
摘要垃圾渗滤液是一种成分复杂多变的高浓度难处理有机废水。采用加载磁絮凝技术对垃圾渗滤液进行预处
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理以提高其可生化性便于后续生化处理的进行。研究了适宜的磁载体种类、凝聚剂和絮凝剂的加入量以及不同 pH 值
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和药剂投加顺序的影响并进行了磁絮凝与常规絮凝工艺的对比实验。得到的最优组合工艺为 PAC 投加量 5. 5 g /L 磁载
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体投加量 35 g /L PAM 投加量 0. 011 g /L 最佳 pH 5. 37 PAC 和磁粉同时投加优于其他投加方式。渗滤液经预处理后 COD
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去除率 42% 浊度去除率 92% 色度去除率 88% 氨氮去除率 65% 总磷去除率 79% 。磁絮凝沉降速度明显比常规絮凝快。
关键词加载磁絮凝垃圾渗滤液磁载体总磷去除率

中图分类号 X703 文献标识码 A 文章编号 1673-9108 2011 10-2303-04
Study on pretreatment of landfill leachate by ic ulation
Zeng Huifeng Sun Chunbao Wang Ran Mi Liping Zhang Yinping
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Civil and Environmental Engineering School University of Science and Technology Beijing Beijing 100083 China
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Abstract Landfill leachate is a kind of high anic wastewater. In this study the technology
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of ic ulation was used to pretreat the landfill leachate the testing factors included optimum dosage of
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ic carriers agglomerants and ulants the influence of pH and dosing sequence. And the results were
compared with chemical ulation and ic ulation. The results reveals that 42% of COD removal effi-
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ciency 92% of turbidity reduction 88% of chroma removal 79% of ammonia nitrogen reduction and 65% of
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phosphorus remova