期刊
BIORESOURCE TECHNOLOGY
卷 131, 期 -, 页码 527-530出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.biortech.2013.01.099
关键词
Graphene oxide; Anammox; Biological nitrogen removal; Extracellular polymeric substances
资金
- Geping GreenAid Project-Environmental Scientific Research 123 Project of Liaoning, China
- Fund of Water Pollution Control and Management Projects in the Twelfth Five-Year Plan of Chinese Government
Graphene oxide (GO) was applied in this study to enhance the activity of anaerobic ammonium oxidation (anammox) bacteria for nitrogen removal. A GO dose-dependent effect on anammox bacteria was observed through batch tests. The results showed that the activity increased as the GO dose was varied within 0.05-0.1 g L-1. A maximum 10.26% increase of anaerobic ammonium oxidizing activity was achieved at 0.1 g L-1 GO. Analysis of extracellular polymeric substances (EPS) indicated that the highest carbohydrate, protein, and total EPS contents (42.5, 125.7, and 168.2 mg (g volatile suspended solids)(-1), respectively) were obtained with 0.1 g L-1 GO. Appropriate GO dose stimulated EPS production to promote the activity of anammox bacteria. Transmission electron microscopy showed the large surface area of GO benefited cell attachment. These findings proved that the application of GO was an effective approach to enhancing the activity of anammox bacteria. (C) 2013 Elsevier Ltd. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据