Comparison of high pressure and ambient pressure aerobic granulation sequential batch reactor processes

被引：6

作者：

Liang, Yang-Min ^{[1
]}

Yang, You-Lan ^{[1
]}

Chang, Yuan-Wei ^{[1
]}

Chen, Jie-Yuan ^{[1
]}

Li, Chi-Wang ^{[1
]}

Yu, Jui-Hsuan ^{[1
]}

Chen, Shiao-Shing ^{[2
]}

机构：

[1] Tamkang Univ, Dept Water Resources & Environm Engn, New Taipei City 25137, Taiwan

[2] Natl Taipei Univ Technol, Inst Environm Engn & Management, Taipei 106, Taiwan

来源：

BIORESOURCE TECHNOLOGY | 2013年 / 140卷

关键词：

High pressure; Granulation; Organic loading; Nitrification; EXTRACELLULAR POLYMERIC SUBSTANCES; WASTE-WATER; MICROBIAL-POPULATION; SLUDGE; GRANULES; OXYGEN; REMOVAL; NITRIFICATION; FILTRATION; STABILITY;

D O I：

10.1016/j.biortech.2013.04.042

中图分类号：

S2 [农业工程];

学科分类号：

0828 ;

摘要：

Due to granule size, substrate and oxygen become limited in the core of granules leading to cell lysis at the core. Loss of granule stability is still a major barrier for practical application of AG. Compared to ambient pressure condition (AP), operation of AG under high pressure (HP) is a favorable condition for formation and stability of granules. Experimental results show that granulation was facilitated under HP condition. MLSS and size of granules under AP system are higher than those under HP system. However, SS of effluent in AP is higher than those in HP and is consisted mainly of flocculent sludge. Longer SRT and lower biomass yield are obtained in HP system, indicating that less sludge will be produced in HP system. HP system can operate at high nitrogen loading. Complete nitrification was observed earlier in HP, indicating that the growth of NOB was facilitated under high dissolved oxygen. (C) 2013 Elsevier Ltd. All rights reserved.

引用

页码：28 / 35

页数：8

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