TY - JOUR
T1 - Integrated simultaneous desulfurization and denitrification (ISDD) process at various COD/sulfate ratios
AU - Chen, Chuan
AU - Liu, Lihong
AU - Lee, Duu-Jong
AU - Guo, Wanqian
AU - Wang, Aijie
AU - Xu, Xijun
AU - Zhou, Xu
AU - Wu, Donghai
AU - Ren, Nanqi
N1 - Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].
PY - 2014/3
Y1 - 2014/3
N2 - 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% S0 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. © 2013 Elsevier Ltd.
AB - 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% S0 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. © 2013 Elsevier Ltd.
KW - Carbon to sulfate ratio
KW - Denitrification
KW - Denitrifiers
KW - Desulfurization
KW - Sulfate-reducing bacteria
UR - https://www.scopus.com/pages/publications/84892634493
UR - https://www.scopus.com/pages/publications/84892634493#tab=impact
U2 - 10.1016/j.biortech.2013.12.067
DO - 10.1016/j.biortech.2013.12.067
M3 - RGC 21 - Publication in refereed journal
C2 - 24445194
SN - 0960-8524
VL - 155
SP - 161
EP - 169
JO - Bioresource Technology
JF - Bioresource Technology
ER -