Tetracycline removal and effect on the formation and degradation of extracellular polymeric substances and volatile fatty acids in the process of hydrogen fermentation

被引：54

作者：

Hou, Guangying ^{[1
]}

Hao, Xiaoyan ^{[1
]}

Zhang, Rui ^{[1
]}

Wang, Jing ^{[1
]}

Liu, Rutao ^{[1
]}

Liu, Chunguang ^{[1
]}

机构：

[1] Shandong Univ, Sch Environm Sci & Engn, Jinan 250100, Peoples R China

来源：

BIORESOURCE TECHNOLOGY | 2016年 / 212卷

基金：

中国国家自然科学基金;

关键词：

Antibiotics; EPSs; VFAs; EEM; Anaerobic digestion; Sludge; WASTE ACTIVATED-SLUDGE; DISSOLVED ORGANIC-MATTER; ANAEROBIC CO-DIGESTION; METHANE PRODUCTION; BIOGAS PRODUCTION; ANTIBIOTICS; SUBSTRATE; BACTERIA; SULFAMETHAZINE; COPPER;

D O I：

10.1016/j.biortech.2016.03.156

中图分类号：

S2 [农业工程];

学科分类号：

0828 ;

摘要：

Many research indicate antibiotics show adverse effect on methane fermentation, while few research focus on their effect on hydrogen fermentation. The present study aimed to gain insight of the effect of antibiotics on hydrogen fermentation with waste sludge and corn straw as substrate. For this purpose, tetracycline, as a model, was investigated with regard to tetracycline removal, hydrogen production, interaction with extracellular polymeric substances (EPSs) of substrate and volatile fatty acids (VFAs) on concentration and composition. Results show that tetracycline could be removed efficiently by hydrogen fermentation, and relative low-dose tetracycline (200 mg/l) exposure affects little on hydrogen production. While tetracycline exposure could change hydrogen fermentation from butyric acid-type to propionic acid-type depending on tetracycline level. Based upon three-dimensional excitation-emission matrix fluorescence spectroscopy and UV-vis tetracycline changed the component and content of EPSs, and static quenching was the main mechanism between EPSs with tetracycline. (C) 2016 Elsevier Ltd. All rights reserved.

引用

页码：20 / 25

页数：6

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