PMID- 17702569
OWN - NLM
STAT- MEDLINE
DCOM- 20080619
LR  - 20080303
IS  - 0960-8524 (Print)
IS  - 0960-8524 (Linking)
VI  - 99
IP  - 8
DP  - 2008 May
TI  - Effect of pH on anoxic sulfide oxidizing reactor performance.
PG  - 3291-6
AB  - The effects of pH on the performance of anoxic sulfide oxidizing (ASO) reactor 
      were evaluated. Performance was investigated under various operational conditions 
      at influent pH range of 4-11. At the influent pH of 7-7.5 during loading tests 
      and HRT tests, the sulfide oxidation was partial. In general, the amount of 
      sulfate formed decreased with the increasing sulfide and nitrite loadings. The 
      bacterial communities in ASO reactors were more sensitive to acidic pH compared 
      with alkaline pH, as nitrite and sulfide removal rates dropped significantly when 
      exposed to acidic pH 3. High dissolved bisulfide ions, nitrite and excess of 
      sulfate (>300 mg/L) might have inhibited the sulfide oxidation under highly 
      acidic and alkaline conditions in the ASO reactor. Based on sulfide and nitrite 
      removal efficiencies, the ASO reactor can be operated in a wide range of pH, i.e. 
      5-11.
FAU - Mahmood, Qaisar
AU  - Mahmood Q
AD  - Department of Environmental Engineering, Zhejiang University, Hangzhou 310029, 
      China.
FAU - Zheng, Ping
AU  - Zheng P
FAU - Hayat, Yousaf
AU  - Hayat Y
FAU - Islam, Ejazul
AU  - Islam E
FAU - Wu, Donglei
AU  - Wu D
FAU - Ren-cun, Jin
AU  - Ren-cun J
LA  - eng
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
DEP - 20070815
PL  - England
TA  - Bioresour Technol
JT  - Bioresource technology
JID - 9889523
RN  - 0 (Nitrates)
RN  - 0 (Nitrites)
RN  - 0 (Quaternary Ammonium Compounds)
RN  - 0 (Sulfides)
SB  - IM
MH  - Biomass
MH  - *Bioreactors
MH  - *Hydrogen-Ion Concentration
MH  - Nitrates/*analysis
MH  - Nitrites/*analysis
MH  - Oxidation-Reduction
MH  - Quaternary Ammonium Compounds/*analysis
MH  - Sulfides/*chemistry
MH  - Waste Disposal, Fluid/*methods/standards
EDAT- 2007/08/19 09:00
MHDA- 2008/06/20 09:00
CRDT- 2007/08/19 09:00
PHST- 2007/03/16 00:00 [received]
PHST- 2007/07/02 00:00 [revised]
PHST- 2007/07/03 00:00 [accepted]
PHST- 2007/08/19 09:00 [pubmed]
PHST- 2008/06/20 09:00 [medline]
PHST- 2007/08/19 09:00 [entrez]
AID - S0960-8524(07)00547-0 [pii]
AID - 10.1016/j.biortech.2007.07.006 [doi]
PST - ppublish
SO  - Bioresour Technol. 2008 May;99(8):3291-6. doi: 10.1016/j.biortech.2007.07.006. 
      Epub 2007 Aug 15.