DSpace
 

DSpace at IIT Bombay >
IITB Publications >
Article >

Please use this identifier to cite or link to this item: http://dspace.library.iitb.ac.in/jspui/handle/10054/4903

Title: Effect of carbon source on PCE dehalogenation
Authors: PRAKASH
GUPTA, SK
Keywords: reductive dechlorination
methanogenic conditions
acetobacterium-woodii
tetrachloroethylene
tetrachloromethane
trichloroethylene
biotransformation
transformations
hydrocarbons
groundwater
Issue Date: 2000
Publisher: ASCE-AMER SOC CIVIL ENGINEERS
Citation: JOURNAL OF ENVIRONMENTAL ENGINEERING-ASCE, 126(7), 622-628
Abstract: A laboratory study using the upflow anaerobic sludge blanket reactor for treating high-strength wastewater containing tetrachloroethene (PCE) was carried out to study the effect of carbon source, recycle, and shock loading on dehalogenation of PCE and process performance. The PCE was dehalogenated to trichloroethylene, cis-1,2-dichloroethylene, vinyl chloride, and ethylene. During the study on the effect of carbon source, the PCE and COD removal up to 97% and biogas production of 0.518-0.47 m(3)/kg CODrem with methane content up to 66% were achieved under steady-state operating conditions. An increase in the influent COD from 2,000 to 4,000 mg/L did not show any improvement in the PCE removal. Recycling of effluent at 50% showed the decrease in COD removal and increase in the effluent concentration of dichloroethylene and vinyl chlorides. Around 1-3.5% of influent PCE stripping to biogas was observed. It was observed that methanol has the stimulatory effect on the dehalogenation of PCE. A shock loading study showed that the upflow anaerobic sludge blanket reactor could assimilate 1.5-2 times the original PCE concentration (50 mg/L) without much effect on the process performance.
URI: http://dspace.library.iitb.ac.in/xmlui/handle/10054/4903
http://hdl.handle.net/10054/4903
ISSN: 0733-9372
Appears in Collections:Article

Files in This Item:

There are no files associated with this item.

View Statistics

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

 

Valid XHTML 1.0! DSpace Software Copyright © 2002-2010  Duraspace - Feedback