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COD进水浓度对SBMBBR脱氮除磷效果影响

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Indexed by:期刊论文

Date of Publication:2008-05-15

Journal:大连理工大学学报

Included Journals:EI、PKU、ISTIC、CSCD

Volume:48

Issue:3

Page Number:329-333

ISSN No.:1000-8608

Key Words:序批式移动床生物膜反应器;脱氮除磷;同时硝化反硝化;反硝化聚磷

Abstract:研究了序批式移动床生物膜反应器(SBMBBR)中COD进水浓度对同步脱氮除磷效果的影响.维持进水PO3-4-P浓度为10 mg/L、NH3-N浓度为40 mg/L左右,COD浓度为200~800 mg/L,研究了反应器的脱氮除磷效果.结果表明:厌氧释磷量在COD进水浓度为450 mg/L时达到最大,为61.2 mg/L;之后,增加COD进水浓度不利于磷的释放.在厌氧段初期,TN便有超过30%的损失,可能是因生物吸附造成的.好氧时TN和磷均损失较大,说明在生物膜上很可能发生了同时硝化反硝化和反硝化聚磷.一定范围的COD浓度能促进TN的去除.TN去除率在COD进水浓度为450 mg/L时达到最大,为87.8%,氮磷的去除与生物膜的生物量和生物膜厚度密切相关.

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