Application of anaerobic and aerobic activated sludge to phosphorus-deficient wastewater treatment

被引：4
|
作者：
Harper, WF [1 ]
Jenkins, D
机构：
[1] Auburn Univ, Harbert Engn Ctr 204, Dept Civil Engn, Auburn, AL 36849 USA
[2] Univ Calif Berkeley, Grad Sch, Berkeley, CA 94720 USA
来源：
WATER ENVIRONMENT RESEARCH | 2005年 / 77卷 / 03期
关键词：
anaerobic/aerobic activated sludge; polyphosphate; phosphorus deficiency;
D O I：
10.2175/106143005X41816
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
Anaerobic and aerobic (AnA) and completely aerobic (CA) sequencing-batch reactors (SBRs) were used to investigate the suitability of the AnA process for treating phosphorus (P)-deficient wastewaters with highly variable influent chemical oxygen demand (COD) loading. Both SBRs were subjected to influent COD loading patterns (LPs) that simulated (1) daily COD loading fluctuations, (2) weekend shutdowns, and (3) long weekend or holiday shutdowns. During LP 1, the AnA SBR produced lower average effluent soluble phosphorus concentrations than CA SBR (0.4 vs. 1.0 mgP/L). A similar result was observed during LP 2, but effluent acetate was detected after the first high COD loading cycle of the weekday loading kperiod. During LP 3, the volatile suspended solids content of both reactors dropped sharply, and the effluent quality of both SBRs deteriorated. Model predictions suggest that the AnA process is stable when treating LP 1, but eventually fails when treating LP 2.
引用
收藏
页码：234 / 245
页数：12
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