Integrated simultaneous desulfurization and denitrification (ISDD) process at various COD/sulfate ratios

被引：43

作者：

Chen, Chuan ^{[1
]}

Liu, Lihong ^{[1
]}

Lee, Duu-Jong ^{[1
,2
,3
]}

Guo, Wanqian ^{[1
]}

Wang, Aijie ^{[1
]}

Xu, Xijun ^{[1
]}

Zhou, Xu ^{[1
]}

Wu, Donghai ^{[1
,2
,3
]}

Ren, Nanqi ^{[1
]}

机构：

[1] Harbin Inst Technol, State Key Lab Urban Water Resource & Environm, Harbin 150090, Peoples R China

[2] Natl Taiwan Univ Sci & Technol, Dept Chem Engn, Taipei 106, Taiwan

[3] Natl Taiwan Univ, Dept Chem Engn, Taipei 106, Taiwan

来源：

BIORESOURCE TECHNOLOGY | 2014年 / 155卷

基金：

中国国家自然科学基金; 高等学校博士学科点专项科研基金;

关键词：

Desulfurization; Denitrification; Carbon to sulfate ratio; Denitrifiers; Sulfate-reducing bacteria; SIMULTANEOUS BIOLOGICAL REMOVAL; MICRO-AEROBIC CONDITION; SULFIDE-OXIDATION; BIOFILM REACTOR; BED REACTOR; ACTIVATED-SLUDGE; SP-NOV; SULFATE; SULFUR; NITRATE;

D O I：

10.1016/j.biortech.2013.12.067

中图分类号：

S2 [农业工程];

学科分类号：

0828 ;

摘要：

The integrated simultaneous desulfurization and denitrification (ISDD) is a novel treatment process to handle sulfate and nitrate-laden wastewaters of high loadings. This study experimentally explored the effect of COD/SO42- ratio on the performance of ISDD process, particularly considering the complex interactions between sulfate-reducing bacteria (SRB), heterotrophic denitrifiers (hNRB) and autotrophic denitrifiers (aNRB). There existed an optimal COD/SO42- ratio (=1.5:1 in the present study) to reach 100% SO42- and NO3- removals and 42.6% S-0 recovery. At COD/SO42- = 1.5: 1, the functional strains could form granules with high retention in the ISDD reactor. The microbial community analysis identified the SRB, hNRB and aNRB in the studied system, whose shifts correlated well with the noted ISDD performance change at different COD/SO42- ratio. Interactions between different groups of bacteria and the possible strategy to enhance the ISDD performance were discussed. (C) 2013 Elsevier Ltd. All rights reserved.

引用

页码：161 / 169

页数：9

共 29 条

[1] Effect of initial sulfide concentration on sulfide and phenol oxidation under denitrifying conditions [J].