Record Details

Biological oxidation of high strength nitrogenous wastewater

DSpace at IIT Bombay

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Field Value
 
Title Biological oxidation of high strength nitrogenous wastewater
 
Creator GUPTA, SK
SHARMA, R
 
Subject microbial nitrification
denitrification
nitrification
wastewater treatment
activated sludge process
ammonia removal
 
Description A nitrification study was conducted in continuous flow stirred tank reactors using high strength nitrogenous wastewater (concentrated stream from a urea plant mixed with pharmaceutical wastewater). The reactors were operated at different solids retention times (SRT = 10-62.5 d) and hydraulic retention times (HRT = 1.5-2.1 d). Pharmaceutical wastewater was used as an organic carbon source to maintain a COD/TKN ratio of 1. The nitrification achieved at different SRTs varied from 87 to 99%. The nitrogen balance data show that ammonia assimilation and denitrification accounted for 4-53% of the total nitrogen removed. The yield coefficients and decay coefficients were Y-b = 0.5 (COD basis), k(db) = 0.07 d(-1) (COD basis) for heterotrophs and Y-n = 0.15 (TKN basis), k(dn) = 0.06 d(-1) (TKN basis) for nitrifiers respectively.
 
Publisher PERGAMON-ELSEVIER SCIENCE LTD
 
Date 2011-08-23T16:40:40Z
2011-12-26T12:56:31Z
2011-12-27T05:45:22Z
2011-08-23T16:40:40Z
2011-12-26T12:56:31Z
2011-12-27T05:45:22Z
1996
 
Type Article
 
Identifier WATER RESEARCH, 30(3), 593-600
0043-1354
http://dx.doi.org/10.1016/0043-1354(95)00172-7
http://dspace.library.iitb.ac.in/xmlui/handle/10054/10578
http://hdl.handle.net/10054/10578
 
Language en