Species of phosphorus in the extracellular polymeric substances of EBPR sludge

被引：66

作者：

Zhang, Hai-Ling ^{[1
]}

Fang, Wei ^{[2
]}

Wang, Yong-Peng ^{[1
]}

Sheng, Guo-Ping ^{[2
]}

Xia, Cheng-Wang ^{[2
]}

Zeng, Raymond J. ^{[2
]}

Yu, Han-Qing ^{[2
]}

机构：

[1] Univ Sci & Technol China, Sch Earth & Space Sci, Hefei 230026, Peoples R China

[2] Univ Sci & Technol China, Dept Chem, Hefei 230026, Peoples R China

来源：

BIORESOURCE TECHNOLOGY | 2013年 / 142卷

关键词：

Enhanced biological phosphorus removal; Extracellular polymeric substances (EPS); P-31 nuclear magnetic resonance (P-31 NMR); Phosphorus species; ACTIVATED-SLUDGE; REMOVAL; POLYPHOSPHATE; EXOPOLYMERS;

D O I：

10.1016/j.biortech.2013.05.068

中图分类号：

S2 [农业工程];

学科分类号：

0828 ;

摘要：

In this study, the species of extracellular phosphorus and their transformation during extracellular polymeric substances (EPS) extraction were explored by using P-31 nuclear magnetic resonance spectroscopy. Results show that the extraction methods had a substantial influence on the phosphorus species in the extracted EPS. Cation exchange resin method was more appropriate for extracting EPS from the enhanced biological phosphorus removal (EBPR) sludge. Orthophosphate, pyrophosphate and polyphosphate were the main species of phosphorus found to be present in the EPS, which together accounted for about 6.6-10.5% of the total phosphorus in the EBPR sludge. The high percentage of extracellular phosphorus and their diverse species might reveal a new insight into the characteristics of the phosphorus in EPS in EBPR system. (C) 2013 Elsevier Ltd. All rights reserved.

引用

页码：714 / 718

页数：5

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