Biological phosphorus and nitrogen removal in a sequencing batch moving bed biofilm reactor

被引:41
作者
Helness, H [1 ]
Odegaard, H
机构
[1] SINTEF, N-7465 Trondheim, Norway
[2] Norwegian Univ Sci & Technol, Fac Civil & Environm Engn, N-7034 Trondheim, Norway
关键词
biofilm; biological phosphorus removal; nitrogen removal; moving bed; sequencing batch reactor; wastewater;
D O I
10.2166/wst.2001.0053
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
Biological phosphorus and nitrogen removal in biofilm processes have a potential advantage compared to activated sludge processes, because of less vulnerability with respect to sludge loss and because biofilm processes, in general, are more compact with a smaller footprint. Experiments have been carried out in a moving bed biofilm reactor operated as a sequencing batch reactor (SBR),with simultaneous nitrification, phosphorus uptake and denitrification in the aerobic phase. In order to achieve good phosphorus and nitrogen removal, the length or the anaerobic period should be tuned to achieve near complete removal of easily biodegradable COD in the anaerobic period, and the length of the aerobic period should be long enough for complete nitrification. The total GOD-loading rate must be at the same time be kept high enough to achieve a net growth of biomass in the reactor.
引用
收藏
页码:233 / 240
页数:8
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