학술논문
Role of CODPCP/CODTotal ratio on p-chlorophenol toxicity towards aerobic granular sludge
Document Type
Article
Author
Source
Journal of Industrial and Engineering Chemistry, 54(0), pp.440-446 Oct, 2017
Subject
Language
English
ISSN
1876-794X
1226-086X
1226-086X
Abstract
Aerobic granular sludge (AGS) has emerged as a promising biotechnology for the treatment of industrial wastewaters. The biodegradation of AGS utilizing p-chlorophenol (PCP) was investigated under various CODPCP/CODTotal ratios. The initially developed microbial granules were used for degradation of PCP, with monoethylene glycol (MEG) as co-substrate. Heterotrophic bacteria in AGS appeared to adapt fairly rapidly to PCP, and a near complete recovery of their metabolic activity was noticed after about 4 d of exposure to high PCP levels (up to 400 mg/L). Nevertheless, CODPCP/CODTotal 0.648 did negatively affect granular sludge in terms of both morphology and biological activity.