杨凤林
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A2O—MBR工艺反硝化脱氮除磷研究
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Indexed by:期刊论文

Date of Publication:2008-07-15

Journal:大连理工大学学报

Included Journals:EI、PKU、ISTIC、CSCD

Volume:48

Issue:4

Page Number:490-495

ISSN No.:1000-8608

Key Words:膜生物反应器 反硝化除磷 脱氮除磷 膜污染

Abstract:以自行设计的双反应器A2O-MBR为研究对象.对模拟生活废水的脱氮除磷进行了研究.结果表明:当N、P负荷为0.14和0.3 kg·m-3·d-1时,COD、N、P去除率分别为90.5%、80.6%和67.7%,系统不必外投硝酸盐即可实现反硝化除磷.具有很强的反硝化脱氪除磷能力,反硝化聚磷菌(DPAOs)占总聚磷菌(PAO)的比例和反硝化除磷量占总除磷量的比率分别达70.00%和69.81%;污泥回漉中硝酸盐量超过一定范围会发生对厌氧释磷的抑制.本系统中当进水ρ(COD):ρ(TP)为30:1时,进水COD与回流污泥硝酸盐的比例应高于30:1.采用问歇抽吸出水有助于延缓膜污染,膜出水不受污泥沉降性的影响.

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Gender:Male

Alma Mater:大连工学院

Degree:Master's Degree

School/Department:环境学院

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