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Performance of UASB reactor in the biotreatment of 1,1,2-Trichloroethane

DSpace at IIT Bombay

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Title Performance of UASB reactor in the biotreatment of 1,1,2-Trichloroethane
 
Creator BASU, D
ASOLEKAR, SR
 
Subject Upflow anaerobic sludge blanket
industrial wastewater
1,1,2-Trichloroethane (TCA)
upflow velocity
organic loading
METHANOGENIC GRANULAR SLUDGE
ANAEROBIC DEGRADATION
CARBON-TETRACHLORIDE
ALIPHATIC-COMPOUNDS
BLANKET REACTORS
1,1,1-TRICHLOROETHANE
BIOTRANSFORMATION
TRANSFORMATIONS
BIODEGRADATION
DECHLORINATION
 
Description This article aims to examine the performance of bench-scale Upflow Anaerobic Sludge Blanket (UASB) reactor operated under varying operating conditions, during the treatment of simulated wastewater containing 1,1,2-Trichloroethane (TCA). Initially, reactor R1 (control) and reactor R2 (test) containing TCA were operated at 5 different Hydraulic Retention Times (HRTs) of 36, 30, 24, 18 and 12 hours. TCA removal decreased from 99.8% to 96.5%, when the HRT was reduced from 36 to 12 hours in discrete steps. Later, when the OLR was varied periodically from 1.5 to 3.1 kg COD/m(3).d to obtain a different substrate: co-substrate ratios; lower TCA removal efficiencies were observed at an OLR of 2.5 kg COD/ m(3).d and above. The average effluent concentrations of TCA and COD were 0.12 and 79 mg/L, respectively, at the optimum HRT of 24 hours; whereas the effluent TCA and COD concentrations at the substrate: co-substrate ratio of 50:1 was 0.06 mg/L and 48 mg/L, respectively.
 
Publisher TAYLOR & FRANCIS INC
 
Date 2014-10-17T05:03:21Z
2014-10-17T05:03:21Z
2012
 
Type Article
 
Identifier JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH PART A-TOXIC/HAZARDOUS SUBSTANCES & ENVIRONMENTAL ENGINEERING, 47(2)267-273
http://dx.doi.org/10.1080/10934529.2012.640902
http://dspace.library.iitb.ac.in/jspui/handle/100/16018
 
Language en