Sludge reduction and nutrient removal from an anaerobic/anoxic/oxic(A2/O) process coupled with a modified oxic-settling-anaerobic process

被引：2

作者：

Sun, Lianpeng ^{[1
,2
]}

Wang, Yushan ^{[1
]}

Xu, Wenli ^{[1
]}

Lin, Yuji ^{[1
]}

Lin, Meishan ^{[3
]}

Luo, Wangxing ^{[1
]}

Shi, Chenyi ^{[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 | 2018年 / 105卷

关键词：

Anaerobic; A2/O-MOSA process; Sludge reduction; Sludge; Municipal sewage; WASTE-WATER TREATMENT; SIDE-STREAM REACTOR; EXCESS SLUDGE; ACTIVATED-SLUDGE; MEMBRANE BIOREACTOR; OSA PROCESS; PRETREATMENT; PHOSPHORUS; DISINTEGRATION; MICROBIOLOGY;

D O I：

10.5004/dwt.2018.22026

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

There is little research that focused on both nutrient removal and sludge reduction based on an anaerobic/anoxic/oxic(A2/O) process. In this study, two systems that consisted of an A2/O process combined with a modified oxic-settling-anaerobic (MOSA) reactor were run for 200 d at the lab-scale to evaluate their effect on sludge reduction and their influence on nutrients removal. The MOSA reactor was run a hydraulic retention time of 5 d and interchange rate of 10%. Our results showed that A2/O-MOSA system performed as well as an A2/O system for removing Chemical Oxygen Demand (COD), ammonia, total nitrogen, and total phosphorus. The A2/O-MOSA system removed an average of 92% of the influent COD, slightly higher than that in the A2/O (90%) system. As for sludge reduction efficiency, the A2/O-MOSA process achieved a sludge reduction of 24%and sludge decay contributed 58% to this sludge reduction.

引用

页码：144 / 151

页数：8

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