DocumentCode :
2802581
Title :
Sulfur balance in the treatment of sulfur-containing wastewater in a biotrickling reactor
Author :
Wang, Li ; Wang, Jian-hua ; Xue, Nian-tao ; Juan Wang ; Wang, Qun-hui
Author_Institution :
Sch. of Civil & Environ. Eng., Univ. of Sci. & Technol. Beijing, Beijing, China
fYear :
2011
fDate :
15-17 July 2011
Firstpage :
2652
Lastpage :
2655
Abstract :
Biological sulfite reduction was studied in a laboratory-scale anaerobic biotrickling reactor packed with ceramic granule for biomass attachment. Inoculated with the Sulfate-reducing Bacteria isolated from landfill leachate, the reactor was operated for 72h per cycle at room temperature with a sulfite loading rate of 1360 mg/L. The sulfite removal efficiency reached 97% after 9.5h. However, the total sulfur and Chemical Oxygen Demand (COD) reduction were 40% and 48.2% respectively at that time. To quantify various sulfur speciations, calculation of sulfur balance was performed, which revealed that up to 76% of sulfite removed was converted to elemental sulfur. In addition, the Oxidation-reduction potential (ORP) maintained within the range of -61mv to -20mv, which is different from the widely reported value: lower than -1000mv. It is effective to treat sulfur-contining waste water using biotrickling reactor.
Keywords :
bioreactors; microorganisms; oxidation; reduction (chemical); wastewater treatment; anaerobic biotrickling reactor; biological sulfite reduction; biomass attachment; ceramic granule; chemical oxygen demand reduction; landfill leachate; oxidation-reduction potential; sulfate-reducing bacteria; sulfite removal efficiency; sulfur balance; sulfur-containing wastewater; Ceramics; Inductors; Microorganisms; Oxidation; Substrates; Wastewater; ORP; Sulfate Reduction Bacteria (SRB); Total sulfur; elemental sulfur; removal efficiency; sulfur balance;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Mechanic Automation and Control Engineering (MACE), 2011 Second International Conference on
Conference_Location :
Hohhot
Print_ISBN :
978-1-4244-9436-1
Type :
conf
DOI :
10.1109/MACE.2011.5987529
Filename :
5987529
Link To Document :
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