Optimization of VFAs and ethanol production with waste sludge used as the denitrification carbon source

被引：4

作者：

Guo, Liang ^{[1
,2
]}

Zhang, Jiawen ^{[1
]}

Yin, Li ^{[3
]}

Zhao, Yangguo ^{[1
]}

Gao, Mengchun ^{[1
]}

She, Zonglian ^{[1
]}

机构：

[1] Ocean Univ China, Coll Environm Sci & Engn, Qingdao 266100, Peoples R China

[2] Ocean Univ China, Minist Educ, Key Lab Marine Environm & Ecol, Qingdao 266100, Peoples R China

[3] PLA Navy Submarine Acad, Qingdao 266042, Peoples R China

来源：

WATER SCIENCE AND TECHNOLOGY | 2015年 / 72卷 / 08期

关键词：

anaerobic acidification; carbon source; RSM; VFAs and ethanol; waste sludge; ACTIVATED-SLUDGE; ANAEROBIC-DIGESTION; FOOD WASTE; HYDROLYSIS; SOLUBILIZATION; FERMENTATION;

D O I：

10.2166/wst.2015.338

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

An acidification metabolite such as volatile fatty acids (VFAs) and ethanol could be used as denitrification carbon sources for solving the difficult problem of carbon source shortages and low nitrogen removal efficiency. A proper control of environmental factors could be essential for obtaining the optimal contents of VFAs and ethanol. In this study, suspended solids (SS), oxidation reduction potential (ORP) and shaking rate were chosen to investigate the interactive effects on VFAs and ethanol production with waste sludge. It was indicated that T-VFA yield could be enhanced at lower ORP and shaking rate. Changing the SS, ORP and shaking rate could influence the distribution of acetic, propionic, butyric, valeric acids and ethanol. The optimal conditions for VFAs and ethanol production used as a denitrification carbon source were predicted by analyzing response surface methodology (RSM).

引用

页码：1348 / 1357

页数：10

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