PMID- 34879520
OWN - NLM
STAT- MEDLINE
DCOM- 20220126
LR  - 20220126
IS  - 1873-3336 (Electronic)
IS  - 0304-3894 (Linking)
VI  - 424
IP  - Pt B
DP  - 2022 Feb 15
TI  - Combination of nitrate and sodium nitroprusside dosing for sulfide control with 
      low carbon source loss in sewer biofilm reactors.
PG  - 127527
LID - S0304-3894(21)02495-X [pii]
LID - 10.1016/j.jhazmat.2021.127527 [doi]
AB  - Nitrate has been widely used in sewer systems for sulfide control. However, 
      significant chemical consumption and the loss of carbon source were observed in 
      previous studies. To find a feasible and cost-effective control strategy of the 
      sulfide control, the effect of nitrate combined with sodium nitroprusside (SNP) 
      dosage strategy was tested in lab-scale sewer biofilm reactors. Results showed 
      that nitrate and SNP were strongly synergistic, with 30 mg N/L nitrate and 
      20 mg/L SNP being sufficient for sulfide control in this study. While large 
      amount of nitrate alone (100 mg N/L) is required to achieve the same sulfide 
      control effectiveness. Meanwhile, the nitrate combined with SNP could reduce the 
      organic carbon source loss by 80%. Additionally, the high-throughput sequencing 
      results showed that the relative abundance of autotrophic, nitrate 
      reducing-sulfide oxidizing bacteria genera (a-NR-SOB) such as Arcobacter and 
      Sulfurimonas was increased by around 18%, while the heterotrophic, 
      nitrate-reducing bacteria (hNRB) such as Thauera was substantially reduced. It 
      demonstrated that the sulfide control was mainly due to the a-NR-SOB activity 
      under the nitrate and SNP dosing strategy. The microbial functional prediction 
      further revealed that nitrate and SNP promoted the dissimilatory nitrate 
      reduction process which utilizes sulfide as an effective electron donor. 
      Moreover, economic assessment indicated that using the combination of nitrate and 
      SNP for sulfide control in sewers would lower the chemical costs by approximately 
      35% compared with only nitrate addition.
CI  - Copyright (c) 2021 Elsevier B.V. All rights reserved.
FAU - Zhang, Guijiao
AU  - Zhang G
AD  - College of Civil Engineering and Architecture, Zhejiang University, Hangzhou 
      310058, China; Department of Civil and Environmental Engineering, University of 
      Alberta, Edmonton, AB T6G 2W2, Canada.
FAU - Yang, Zhi
AU  - Yang Z
AD  - Department of Civil and Environmental Engineering, University of Alberta, 
      Edmonton, AB T6G 2W2, Canada.
FAU - Zhou, Yongchao
AU  - Zhou Y
AD  - College of Civil Engineering and Architecture, Zhejiang University, Hangzhou 
      310058, China. Electronic address: zhoutang@zju.edu.cn.
FAU - Zhu, David Z
AU  - Zhu DZ
AD  - Department of Civil and Environmental Engineering, University of Alberta, 
      Edmonton, AB T6G 2W2, Canada.
FAU - Zhang, Yiping
AU  - Zhang Y
AD  - College of Civil Engineering and Architecture, Zhejiang University, Hangzhou 
      310058, China.
FAU - Yu, Tong
AU  - Yu T
AD  - Department of Civil and Environmental Engineering, University of Alberta, 
      Edmonton, AB T6G 2W2, Canada.
FAU - Shypanski, Adam
AU  - Shypanski A
AD  - Drainage Planning, EPCOR Drainage Services, Edmonton, AB T5J 3A3, Canada.
LA  - eng
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
DEP - 20211016
PL  - Netherlands
TA  - J Hazard Mater
JT  - Journal of hazardous materials
JID - 9422688
RN  - 0 (Nitrates)
RN  - 0 (Sulfides)
RN  - 169D1260KM (Nitroprusside)
RN  - 7440-44-0 (Carbon)
SB  - IM
MH  - Biofilms
MH  - *Carbon
MH  - *Nitrates
MH  - Nitroprusside
MH  - Oxidation-Reduction
MH  - Sulfides
OTO - NOTNLM
OT  - Carbon source loss
OT  - Microbial activities
OT  - Nitrate
OT  - Sodium nitroprusside
OT  - Sulfide control
EDAT- 2021/12/10 06:00
MHDA- 2022/01/27 06:00
CRDT- 2021/12/09 01:01
PHST- 2021/08/04 00:00 [received]
PHST- 2021/09/22 00:00 [revised]
PHST- 2021/10/14 00:00 [accepted]
PHST- 2021/12/09 01:01 [entrez]
PHST- 2021/12/10 06:00 [pubmed]
PHST- 2022/01/27 06:00 [medline]
AID - S0304-3894(21)02495-X [pii]
AID - 10.1016/j.jhazmat.2021.127527 [doi]
PST - ppublish
SO  - J Hazard Mater. 2022 Feb 15;424(Pt B):127527. doi: 10.1016/j.jhazmat.2021.127527. 
      Epub 2021 Oct 16.