Biological treatment of para-chlorophenol containing synthetic wastewater using rotating brush biofilm reactor
A novel rotating brush biofilm reactor (RBBR) was used for para-chlorophenol (4-chlorophenol, 4-CP), COD and toxicity removal from synthetic wastewater containing different concentrations of 4-CP. Effects of major operating variables such as the feed 4-CP and COD concentrations and A/ Q (biofilm sur...
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Published in | Journal of hazardous materials Vol. 135; no. 1; pp. 365 - 371 |
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Main Authors | , |
Format | Journal Article |
Language | English |
Published |
Amsterdam
Elsevier B.V
31.07.2006
Elsevier |
Subjects | |
Online Access | Get full text |
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Summary: | A novel rotating brush biofilm reactor (RBBR) was used for
para-chlorophenol (4-chlorophenol, 4-CP), COD and toxicity removal from synthetic wastewater containing different concentrations of 4-CP. Effects of major operating variables such as the feed 4-CP and COD concentrations and
A/
Q (biofilm surface area/feed flow rate) ratio on the performance of the biofilm reactor were investigated. A Box–Wilson statistical experiment design method was used by considering the feed 4-CP (0–1000
mg
l
−1), COD (2000–6000
mg
l
−1) and
A/
Q ratio (73–293
m
2
day
m
−3) as the independent variables while the 4-CP, COD and toxicity removals were the objective functions. The results were correlated by a response function and the coefficients were determined by regression analysis. Percent 4-CP, COD and toxicity removals determined from the response functions were in good agreement with the experimental results. 4-CP, COD and toxicity removals increased with decreasing feed 4-CP and increasing
A/
Q ratio. Optimum conditions resulting in maximum COD, 4-CP and toxicity removals were found to be
A/
Q ratio of nearly 180
m
2
day
m
−3, feed COD of nearly 4000
mg
l
−1 and feed 4-CP of less than 205
mg
l
−1. |
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Bibliography: | ObjectType-Article-2 SourceType-Scholarly Journals-1 ObjectType-Feature-1 content type line 23 ObjectType-Article-1 ObjectType-Feature-2 |
ISSN: | 0304-3894 1873-3336 |
DOI: | 10.1016/j.jhazmat.2005.11.079 |