Enhancing aerobic granulation for biological nutrient removal from domestic wastewater

被引：133

作者：

Coma, M. ^{[1
,2
]}

Verawaty, M. ^{[2
]}

Pijuan, M. ^{[2
,3
]}

Yuan, Z. ^{[2
]}

Bond, P. L. ^{[2
]}

机构：

[1] Univ Girona, Inst Environm, Lab Chem & Environm Engn LEQUIA UdG, E-17071 Girona, Spain

[2] Univ Queensland, Adv Water Management Ctr AWMC, Brisbane, Qld 4072, Australia

[3] Univ Girona, Catalan Inst Water Res, Girona 17003, Spain

来源：

BIORESOURCE TECHNOLOGY | 2012年 / 103卷 / 01期

关键词：

Aerobic granular sludge; Biological nutrient removal; Domestic wastewater; Nitrite inhibition; Seed sludge; POLYPHOSPHATE-ACCUMULATING ORGANISMS; FREE NITROUS-ACID; PHOSPHORUS REMOVAL; SIMULTANEOUS NITRIFICATION; PHOSPHATE-UPTAKE; SLUDGE; NITRITE; GRANULES; DENITRIFICATION; TECHNOLOGY;

D O I：

10.1016/j.biortech.2011.10.014

中图分类号：

S2 [农业工程];

学科分类号：

0828 ;

摘要：

This study focuses on the enhancement of aerobic granulation and biological nutrient removal maintenance treating domestic wastewater. Two sequencing batch reactors (SBRs) were inoculated with either only floccular sludge (100%-floc SBR) or supplemented with 10% crushed granules (90%-floc SBR). Granules developed in both reactors. The 100%-floc SBR achieved 75% of nitrogen and 93% of phosphorus removal at the end of the performance, but some floccular sludge remained in the system. The 90%-floc SBR became fully granulated and finished with 84% and 99% of nitrogen and phosphorus removal, respectively. Regarding biological phosphorus removal, nitrite was identified as an inhibitor of the process. Nitrite levels lower than 5 mg N-NO2- L-1 were used for anoxic phosphate uptake while higher concentrations inhibited the process. (C) 2011 Elsevier Ltd. All rights reserved.

引用

页码：101 / 108

页数：8

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