PMID- 29284367
OWN - NLM
STAT- MEDLINE
DCOM- 20190909
LR  - 20190909
IS  - 1479-487X (Electronic)
IS  - 0959-3330 (Linking)
VI  - 40
IP  - 11
DP  - 2019 Apr
TI  - Regulation of influent sulfide concentration on anaerobic denitrifying sulfide 
      removal.
PG  - 1392-1400
LID - 10.1080/09593330.2017.1422552 [doi]
AB  - The objective of this study is to find a comprehensive regulation for sulfide 
      removal and elemental sulfur transformation based on the denitrifying sulfide 
      removal process. The experiment was performed based on several influent sulfide 
      concentrations (150-600 mg/L) and nitrate-to-sulfur (N/S) molar ratios (0.5-2.0) 
      at reaction times of 24 and 48 h. Sulfide and nitrate removals were mainly 
      dependent on the influent sulfide concentration at sulfide concentrations of 
      150-200 and 400-600 mg/L, but on the N/S ratio at sulfide concentrations of 
      250-350 mg/L. Up to 99.7% and 93.8% of sulfide and nitrate were removed, 
      respectively, with 26.5% of elemental sulfur formed at sulfide concentrations of 
      250-350 mg/L (N/S of 1.0). Only 4-9.4% of elemental sulfur was formed, with 
      sulfide and nitrate removals of 99.9% and 98.7%, respectively, at sulfide 
      concentrations of 150-200 mg/L. Meanwhile, 46.9-94.7% of sulfate was formed with 
      a nitrogen gas conversion rate of 18.2-57.1%. Fewer microorganisms were detected 
      by fluorescence in situ hybridization (FISH) at high sulfide concentrations of 
      400-600 mg/L, suggesting that the processes of anaerobic denitrification and 
      desulfurization were inhibited.
FAU - Xu, Jinlan
AU  - Xu J
AD  - a School of Environmental and Municipal Engineering , Xi'an University of 
      Architecture and Technology , Shaanxi Xi'an , People's Republic of China.
FAU - Ding, Keshuai
AU  - Ding K
AD  - a School of Environmental and Municipal Engineering , Xi'an University of 
      Architecture and Technology , Shaanxi Xi'an , People's Republic of China.
FAU - Yang, Chengwei
AU  - Yang C
AD  - a School of Environmental and Municipal Engineering , Xi'an University of 
      Architecture and Technology , Shaanxi Xi'an , People's Republic of China.
FAU - Huang, Tinglin
AU  - Huang T
AD  - a School of Environmental and Municipal Engineering , Xi'an University of 
      Architecture and Technology , Shaanxi Xi'an , People's Republic of China.
LA  - eng
PT  - Journal Article
DEP - 20180112
PL  - England
TA  - Environ Technol
JT  - Environmental technology
JID - 9884939
RN  - 0 (Nitrates)
RN  - 0 (Sulfides)
SB  - IM
MH  - Anaerobiosis
MH  - *Bioreactors
MH  - Denitrification
MH  - In Situ Hybridization, Fluorescence
MH  - Nitrates
MH  - *Sulfides
OTO - NOTNLM
OT  - Anaerobic denitrifying sulfide removal
OT  - FISH
OT  - N/S molar ratio
OT  - elemental sulfur
OT  - influent sulfide concentration
EDAT- 2017/12/30 06:00
MHDA- 2019/09/10 06:00
CRDT- 2017/12/30 06:00
PHST- 2017/12/30 06:00 [pubmed]
PHST- 2019/09/10 06:00 [medline]
PHST- 2017/12/30 06:00 [entrez]
AID - 10.1080/09593330.2017.1422552 [doi]
PST - ppublish
SO  - Environ Technol. 2019 Apr;40(11):1392-1400. doi: 10.1080/09593330.2017.1422552. 
      Epub 2018 Jan 12.