文献类型: 外文期刊
作者: Yan, Fei 1 ; Zuo, Jinlong 1 ; Qiu, Tianlei 2 ; Wang, Xuming 2 ;
作者机构: 1.Harbin Commercial Univ, Lire Sci & Environm Sci Res Ctr, Harbin 150076, Peoples R China
2.Beijing AgroBiotechnol Res Ctr, Beijing 100097, Peoples R China
关键词: UASB;granular sludge;piggery wastewater;COD
期刊名称:ADVANCED RESEARCH ON MATERIAL SCIENCE AND ENVIRONMENTAL SCIENCE
ISSN: 1022-6680
年卷期: 2012 年 534 卷
页码:
收录情况: SCI
摘要: It took 55 days to start up a lab-scale upflow anaerobic sludge blanket (UASB) reactor at ambient temperature 27-28 degrees C by using the synthetic wastewater, and piggery wastewater was used as the influent after the reactor start-up. From day 120 onwards, COD removal efficiency maintained in the range of 85% to 95% with 6.79-9.66 kg COD/ (m(3)center dot d) of volume loading, and the effluent COD concentration ranged between 400 mg/L and 600 mg/L. Granular sludge formation was observed in the reactor after 40-day operation, and the sludge diameter reached 2-4 mm in the 120 day-old reactor. The pH changes in the influent had little influence on COD removal from piggery wastewater using the UASB reactor.
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