期刊
CHEMICAL ENGINEERING JOURNAL
卷 268, 期 -, 页码 180-186出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.cej.2015.01.045
关键词
Autotrophic denitrification; Drinking water; Membrane bioreactor; Sulfur-based autotrophic denitrification
资金
- Istanbul Medeniyet University Research Fund [FKD-2013-285, FBG-2013-397]
- BAGEP Research Award of Bilim Akademisi - The Science Academy, Turkey
Sulfur-oxidizing autotrophic denitrification process has drawn significant attention due to its high efficiency, elimination of carbon requirement and the effluent contamination by organic compounds. In the process, nitrate and sulfur are used as electron acceptor, and electron donor, respectively. In the present study, a novel sulfur based autotrophic denitriflcation process utilizing membrane bioreactor (MBR) was tested for nitrate removal from drinking water. A bench-scale MBR equipped with hydrophilic flat sheet polyethersulfone (PES) membranes (0.45 mu m) was used. Sulfur was externally added to the MBR considering the theoretical requirement. Almost complete denitrification efficiency was achieved when the influent nitrate concentrations were 25-50 mg NO3--N/L at HRT as low as 5 h corresponding to nitrate loading rates up to 0.24 g NO3--N/(L d), The generated sulfate concentrations were close to the theoretical values. Membrane fouling was not significant at fluxes <= 20 L/(m(2) h). (C) 2015 Elsevier B.V. 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