Denitrification of groundwater using Brewer's spent grain as biofilter media

被引：20

作者：

Benyoucef, N. ^{[1
]}

Cheikh, A. ^{[1
]}

Drouiche, N. ^{[1
,2
]}

Lounici, H. ^{[1
]}

Mameri, N.

Abdi, N. ^{[1
]}

机构：

[1] Ecole Natl Polytech, Lab BIOGEP, Algiers 16200, Algeria

[2] Univ Technol Compiegne, Dept Chem Engn, F-60205 Compiegne, France

来源：

ECOLOGICAL ENGINEERING | 2013年 / 52卷

关键词：

Denitrification; Water; Bioreactor; Brewer's spent grain; BIOLOGICAL DENITRIFICATION; NITROGEN REMOVAL; HIGH-NITRATE; DRINKING-WATER; EXTERNAL CARBON; WHEAT-STRAW; SLUDGE; REACTORS; ACID;

D O I：

10.1016/j.ecoleng.2012.12.092

中图分类号：

Q14 [生态学（生物生态学）];

学科分类号：

071012 ; 0713 ;

摘要：

This study evaluated Brewer's spent grain as media for denitrification processes in treating groundwater. A laboratory scale reactor was inoculated with anaerobic sludge from a waste-water treatment plant. Optimization of running conditions were investigated under various parameters including: hydraulic retention time (HRT), influent nitrate loading and pH. The experimental results demonstrate that the optimum reaction parameters were: HRT = 100 min; N-NO3 = 200 mg L-1; pH =7.5-7.9. Vertical study showed that hydraulic retention time and pH affect significantly the nitrate removal, while nitrate loading do not affect the denitrification process. (C) 2013 Elsevier B.V. All rights reserved.

引用

页码：70 / 74

页数：5

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