Effect of carbon to nitrogen ratio on the composition of microbial extracellular polymers in activated sludge

被引：104

作者：

Durmaz, B ^{[1
]}

Sanin, FD ^{[1
]}

机构：

[1] Middle E Tech Univ, Dept Environm Engn, TR-06531 Ankara, Turkey

来源：

WATER SCIENCE AND TECHNOLOGY | 2001年 / 44卷 / 10期

关键词：

activated sludge; carbohydrates; C/N ratio; extracellular polymers; proteins;

D O I：

10.2166/wst.2001.0626

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Effect of carbon to nitrogen ratio (C/N) on the sludge extracellular polymer composition is studied in synthetically fed semi-continuous reactors with 8 days of sludge age. Results show that C/N ratio influences the relative distribution of polymer carbohydrate and protein. At low C/N ratio of 5, polymer extracts have high protein and low carbohydrate content. As the C/N ratio is increased to 17.5 and then to 40, carbohydrate concentration increases sharply and protein concentration decreases.

引用

页码：221 / 229

页数：9

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