THE EFFECTS OF MCRT AND TEMPERATURE ON ENHANCED BIOLOGICAL PHOSPHORUS REMOVAL

被引:59
作者
MAMAIS, D
JENKINS, D
机构
关键词
ACTIVATED SLUDGE; ENHANCED BIOLOGICAL PHOSPHORUS REMOVAL; MCRT; TEMPERATURE EFFECTS; PHOSPHATE RELEASE AND UPTAKE; READILY BIODEGRADABLE COD;
D O I
10.2166/wst.1992.0537
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
Temperature and low mean cell residence time (MCRT) effects on enhanced biological phosphorus removal (EBPR) were investigated in continuous flow bench-scale activated sludge systems treating settled domestic wastewater supplemented with 50 mg/l acetate over ranges of MCRT and temperature of 2-4 days and 13.5-20-degrees-C respectively. Temperature effects (10-37-degrees-C) on anaerobic soluble COD (CODsol) uptake and soluble P release (Psol) and aerobic Psol uptake rates were studied in batch. For the temperature range studied, EBPR functioned efficiently at MCRT > 2.9 day; below 2.9 day MCRT EBPR is lost at an MCRT value that depends on temperature. Temperature effects on MCRT for EBPR (13.5-20-degrees-C), anaerobic CODsol uptake and Psol release rates and aerobic Psol uptake rates (10-30-degrees-C) are described by similar Arrhenius plots indicating a similar temperature dependency for all biological processes involved in EBPR.
引用
收藏
页码:955 / 965
页数:11
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