Mechanisms for biological phosphorus removal from wastewaters in an upflow granular aerated filter are evaluated. The feasibility of excess phosphorus uptake on fixed bacteria is demonstrated on pilot scale and the limiting parameters are established. The influence of the duration of anaerobic and aerobic states and of substrate loadings on phosphorus removal is verified, as well as the impact of alternating aeration on nitrification. Because bacteria are attached, hydraulic retention time of biomass and water can be separated and the exposure of bacteria to anaerobic or aerated conditions can be optimised.
机构:
Tech Univ Munich, Inst Water Qual Control & Waste Management, D-85748 Garching, GermanyTech Univ Munich, Inst Water Qual Control & Waste Management, D-85748 Garching, Germany
Morgenroth, E
Wilderer, PA
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Tech Univ Munich, Inst Water Qual Control & Waste Management, D-85748 Garching, GermanyTech Univ Munich, Inst Water Qual Control & Waste Management, D-85748 Garching, Germany
机构:
Beijing Univ Technol, Key Lab Water Sci & Water Environm Recovery Engn, Beijing 100123, Peoples R ChinaBeijing Univ Technol, Key Lab Water Sci & Water Environm Recovery Engn, Beijing 100123, Peoples R China
Li, Dong
Lv, Yufeng
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Beijing Univ Technol, Key Lab Water Sci & Water Environm Recovery Engn, Beijing 100123, Peoples R ChinaBeijing Univ Technol, Key Lab Water Sci & Water Environm Recovery Engn, Beijing 100123, Peoples R China
Lv, Yufeng
Zeng, Huiping
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Beijing Univ Technol, Key Lab Water Sci & Water Environm Recovery Engn, Beijing 100123, Peoples R ChinaBeijing Univ Technol, Key Lab Water Sci & Water Environm Recovery Engn, Beijing 100123, Peoples R China
Zeng, Huiping
Zhang, Jie
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Beijing Univ Technol, Key Lab Water Sci & Water Environm Recovery Engn, Beijing 100123, Peoples R China
Harbin Inst Technol, State Key Lab Urban Water Resource & Environm, Harbin 150090, Peoples R ChinaBeijing Univ Technol, Key Lab Water Sci & Water Environm Recovery Engn, Beijing 100123, Peoples R China