Simultaneous removal of sulfide and nitrite by anaerobic bioprocess.
- Author:
Jing CAI
1
;
Ping ZHENG
Author Information
1. Department of Environmental Engineering, Zhejiang University, Hangzhou 310029, China.
- Publication Type:Journal Article
- MeSH:
Anaerobiosis;
Bioreactors;
microbiology;
Nitrites;
isolation & purification;
metabolism;
Sewage;
microbiology;
Sulfides;
isolation & purification;
metabolism;
Waste Disposal, Fluid;
methods;
Water Pollutants, Chemical;
isolation & purification;
metabolism
- From:
Chinese Journal of Biotechnology
2009;25(11):1684-1689
- CountryChina
- Language:Chinese
-
Abstract:
We studied simultaneous removal of sulfide and nitrite by an anaerobic process in an upflow anaerobic sludge blanket (UASB) reactor. The process could remove sulfide and nitrite 13.4 kg/(m3 x d) and 2.3 kg/(m3 x d), respectively, of the reactor tolerated high influent substrate concentration (880.0 mg S/L and 252.7 mg N/L) with the optimum substrate concentration (460.0 mg S/L and 132.3 mg N/L). It tolerated short hydraulic retention time (HRT) with the optimum HRT of 4 h. The apparent half inhibition concentrations of sulfide and nitrite were 403.9 mg S/L and 120.8 mg NL, respectively, under different influent substrate concentrations. The combined effect between sulfide and nitrite was antagonistic effect.
