Biodegradation of Phenol by Unacclimated and Phenol-acclimated Activated Sludge: Effects of Operational Factors on Biodegradation Efficiency and Kinetics

Peng, Sam Suat; Ling, Ng Si

doi:10.21315/jps2017.28.3.4

Cited by 1 publication

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References 22 publications

(38 reference statements)

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“…Enhancement of biodegradation in terms of rate and efficacy was observed after the activated sludge was pre-adapted to target toxic compound. 9,11 In the study conducted by Sam et al, phenol biodegradation time decreased from 330-1260 min to 35-33 min at the initial phenol concentration of 25-250 mg l -1 by using phenolacclimated activated sludge. 12 In spite of the reported efficacy of acclimated activated sludge in removing phenolic compounds, the microorganism suffered from growth inhibition at high concentration of phenolic compounds.…”

Section: Introductionmentioning

confidence: 98%

Studies of the Effects of Co-substrates on Biodegradation Kinetics of 4-Chlorophenol Using Response Surface Methodology (RSM)

Halim¹,

Peng²,

Ling³

2019

JPS

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This study aimed to investigate the effect of glucose or sucrose as cosubstrate on the kinetics of 4-chlorophenol (4-CP) biodegradation by 4-CP-acclimated activated sludge. The performance of 4-CP biodegradation was enhanced in the presence of co-substrate with greater values of zero-order rate constant observed for sucrose compared to glucose at higher 4-CP concentration. The interaction effects of two factors, namely initial 4-CP and co-substrate concentrations ranging from 100-500 mg l -1 and 0-1000 mg l -1 , respectively, on the biodegradation kinetics were examined by using response surface methodology (RSM). For glucose, the kinetics was found dependent on the 4-CP initial concentration. The optimised condition for 4-CP biodegradation in the presence of glucose was: 200 mg l -1 4-CP and 750 mg l -1 glucose with rate constant of 7.630 mg l -1 h -1 .

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Section: Introductionmentioning

confidence: 98%

Studies of the Effects of Co-substrates on Biodegradation Kinetics of 4-Chlorophenol Using Response Surface Methodology (RSM)

Halim¹,

Peng²,

Ling³

2019

JPS

Self Cite

View full text Add to dashboard Cite

show abstract

Biodegradation of Phenol by Unacclimated and Phenol-acclimated Activated Sludge: Effects of Operational Factors on Biodegradation Efficiency and Kinetics

Abstract: This study was conducted to investigate the effects of operational factors

Cited by 1 publication

References 22 publications

Studies of the Effects of Co-substrates on Biodegradation Kinetics of 4-Chlorophenol Using Response Surface Methodology (RSM)

Studies of the Effects of Co-substrates on Biodegradation Kinetics of 4-Chlorophenol Using Response Surface Methodology (RSM)

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