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Pilot-scale Study on Denitrication by Bio-ceramics Fluidized Bed-Sludge Filtering Layer
Author(s): WANG He-li, JIANG Nan, SHENG Li, YU Yan
Pages: 20-
21
Year: 2006
Issue:
6
Journal: ENVIRONMENTAL SCIENCE & TECHNOLOGY
Keyword: 含氮有机废水; 陶粒流化床; 污泥滤层; 反硝化脱氮;
Abstract: 采用生物陶粒流化床-污泥滤层工艺对含氮有机废水处理进行试验研究,研究结果表明:系统内可固着生长不受抑制的硝化菌种群,氨氮去除率可以达到93%~95%;三相分离区形成稳定的污泥滤层,可使总氮去除率得以显著提高;当HRT为1.5h,曝气量为0.25 m3/h,BOD容积负荷为9.2~10.4 BOD5/m3·d,总氮容积负荷0.65kgTN/m3·d条件下,可得到BOD5的去除率85%,总氮去除率74%的处理效果.
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