Sulfur-based autotrophic denitrification from the micro-polluted water

被引：56

作者：

Zhou, Weili ^{[1
]}

Liu, Xu ^{[1
]}

Dong, Xiaojing ^{[1
]}

Wang, Zheng ^{[1
]}

Yuan, Ying ^{[1
]}

Wang, Hui ^{[1
]}

He, Shengbing ^{[1
]}

机构：

[1] Shanghai Jiao Tong Univ, Sch Environm Sci & Engn, Shanghai 200240, Peoples R China

来源：

JOURNAL OF ENVIRONMENTAL SCIENCES | 2016年 / 44卷

基金：

中国国家自然科学基金;

关键词：

Autotrophic denitrification; Micro-polluted water; Thiosulfate; HRT; Hydraulic loading rate; ELEMENTAL SULFUR; WASTE-WATER; SULFIDE; GROUNDWATER; NITRATE; MODEL; PH;

D O I：

10.1016/j.jes.2016.01.002

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Eutrophication caused by high concentrations of nutrients is a huge problem for many natural lakes and reservoirs. Removing the nitrogen contamination from the low C/ N water body has become an urgent need. Autotrophic denitrification with the sulfur compound as electron donor was investigated in the biofilter reactors. Through the lab- scale experiment, it was found that different sulfur compounds and different carriers caused very different treatment performances. Thiosulfate was selected to be the best electron donor and ceramsite was chosen as the suitable carrier due to the good denitrification efficiency, low cost and the good resistibility against the high hydraulic loads. Later the optimum running parameters of the process were determined. Then the pilot- scale experiment was carried out with the real micro- polluted water from the West Lake, China. The results indicated that the autotrophic denitrification with thiosulfate as electron donor was feasible and applicable for the micro- polluted lake water. (C) 2016 The Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences. Published by Elsevier B.V.

引用

页码：180 / 188

页数：9

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