好氧颗粒污泥形成机理及其去污效果
Formation mechanisms and removal efficiency of aerobic granular sludge
杜硕,张朝晖,张宇峰,简培超
摘要(Abstract):
在2个相同的序批式活性污泥反应器(SBR)中利用不同机理,以絮状活性污泥为接种污泥,培养出了2种性质不同的好氧颗粒污泥.R1反应器利用丝状菌假说,得到SVI值为35~45mL/g、粒径分布在2.0~4.0mm之间的好氧颗粒污泥;R2反应器利用胞外多聚物(EPS)假说,得到SVI值为30mL/g、粒径分布在1.0~1.6mm之间的好氧颗粒污泥.结果表明:两者对污染物有良好的去处效果,COD去除率都达到了95%以上,TN的去除率也分别达到60%和50%.
关键词(KeyWords): 好氧颗粒污泥;丝状菌;胞外多聚物;去除效果
基金项目(Foundation): 天津市科技发展计划项目(09ZCKFSH02300)
作者(Author): 杜硕,张朝晖,张宇峰,简培超
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