Effect of sludge reduction in oxic-settling-anaerobic (OSA) systems with different anaerobic hydraulic retention times (HRTs)

被引：5

作者：

Sun, Lianpeng ^{[1
,2
]}

Chen, Lili ^{[1
]}

Cai, Simin ^{[1
]}

Guo, Wuzhen ^{[3
]}

Ye, Tingjin ^{[3
]}

Cui, Yuhan ^{[1
]}

机构：

[1] Sun Yat Sen Univ, Sch Environm Sci & Engn, Guangzhou 510275, Guangdong, Peoples R China

[2] Sun Yat Sen Univ, Guangdong Prov Key Lab Environm Pollut Control &, Guangzhou 510275, Guangdong, Peoples R China

[3] Foshan Water Grp, Foshan 528000, Peoples R China

来源：

DESALINATION AND WATER TREATMENT | 2016年 / 57卷 / 23期

关键词：

Anaerobic; Hydraulic retention time (HRT); Oxic-settling-anaerobic (OSA) system; Sludge reduction; Sewage treatment;

D O I：

10.1080/19443994.2015.1038736

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

The performance of an oxic-settling-anaerobic (OSA) system in terms of sludge reduction was investigated for various anaerobic hydraulic retention times (HRTs) (7d, 5d, 3d, 1d, 12h, and 6h) for a sequencing batch reactor (SBR)-OSA system. Compared to the traditional SBR system, the rates of sludge reduction in the 7d, 5d-1, 5d-2, 3d, and 1d OSA systems were observed to be 66.6, 57.7, 52.5, 50.0, and 48.5%, respectively. In terms of the apparent yield and actual yield of sludge, the OSA systems with longer HRTs exhibited lower sludge yields and better sludge reduction performance. The systems with an HRT>1d achieved a considerable increase in sludge reduction, whereas those with an HRT<1d did not. The anaerobic HRT was observed to be an important factor in determining the sludge reduction of OSA systems.

引用

页码：10523 / 10527

页数：5

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