Comparison of polyhydroxyalkanoates production by activated sludges from anaerobic and oxic zones of an enhanced biological phosphorus removal system: effect of sludge retention time

被引：9

作者：

Chang, Hsuan-Fang ^{[2
]}

Chang, Wei-Chin ^{[1
]}

Chuang, Shun-Hsing ^{[3
]}

Fang, Ya-Lan ^{[1
]}

机构：

[1] Natl Yunlin Univ Sci & Technol, Dept Safety Hlth & Environm Engn, Touliu 640, Yunlin County, Taiwan

[2] Natl Yunlin Univ Sci & Technol, Grad Sch Engn Sci & Technol, Touliu 640, Yunlin County, Taiwan

[3] Chaoyang Univ Technol, Dept Environm Engn & Management, Taichung, Taichung County, Taiwan

来源：

BIORESOURCE TECHNOLOGY | 2011年 / 102卷 / 09期

关键词：

Polyhydroxyalkanoates; Sludge; Enhanced biological phosphorus removal; Anaerobic zone; Oxic zone; PHA PRODUCTION; FATTY-ACIDS; ACETATE; ACCUMULATION;

D O I：

10.1016/j.biortech.2010.10.097

中图分类号：

S2 [农业工程];

学科分类号：

0828 ;

摘要：

This study compared the PHAs production behavior of sludges from the anaerobic and oxic phases of an enhanced biological phosphorus removal (EBPR) system. This was accomplished by using the kinetics and stoichiometric coefficients obtained from aerobic batch tests to evaluate the performance of these two sludges. Experimental results indicated that the metabolic behavior of the sludges for PHAs production depend significantly on the operating sludge retention time (SRT) of the EBPR system. The oxic sludge with 5 days of SRT exhibited better PHAs production performance than anaerobic sludge. Conversely, the anaerobic sludge with 15 days of SRT had superior PHAs production capability compared to oxic sludge. These comparisons suggest that whether anaerobic or oxic sludge should be employed for PHAs production depends mainly on the operating SRT of the EBPR system. (C) 2010 Elsevier Ltd. All rights reserved.

引用

页码：5473 / 5478

页数：6

共 31 条

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