Application of response surface methodology (RSM) for optimisation of COD, NH3-N and 2,4-DCP removal from recycled paper wastewater in a pilot-scale granular activated carbon sequencing batch biofilm reactor (GAC-SBBR)

Mohd Hafizuddin Muhamad, Siti Rozaimah Sheikh Abdullah, Abu Bakar Mohamad, Rakmi Abdul Rahman, Abdul Amir H. Kadhum

Research output: Contribution to journalArticle

75 Citations (Scopus)

Abstract

In this study, the potential of a pilot-scale granular activated carbon sequencing batch biofilm reactor (GAC-SBBR) for removing chemical oxygen demand (COD), ammoniacal nitrogen (NH3-N) and 2,4-dichlorophenol (2,4-DCP) from recycled paper wastewater was assessed. For this purpose, the response surface methodology (RSM) was employed, using a central composite face-centred design (CCFD), to optimise three of the most important operating variables, i.e., hydraulic retention time (HRT), aeration rate (AR) and influent feed concentration (IFC), in the pilot-scale GAC-SBBR process for recycled paper wastewater treatment. Quadratic models were developed for the response variables, i.e., COD, NH3-N and 2,4-DCP removal, based on the high value (>0.9) of the coefficient of determination (R2) obtained from the analysis of variance (ANOVA). The optimal conditions were established at 750 mg COD/L IFC, 3.2 m3/min AR and 1 day HRT, corresponding to predicted COD, NH3-N and 2,4-DCP removal percentages of 94.8, 100 and 80.9%, respectively.

Original languageEnglish
Pages (from-to)179-190
Number of pages12
JournalJournal of Environmental Management
Volume121
DOIs
Publication statusPublished - 30 May 2013

Fingerprint

Chemical oxygen demand
Biofilms
chemical oxygen demand
Activated carbon
activated carbon
biofilm
Wastewater
wastewater
aeration
Hydraulics
hydraulics
Analysis of variance (ANOVA)
variance analysis
Wastewater treatment
Nitrogen
recycled paper
response surface methodology
removal
reactor
nitrogen

Keywords

  • 2,4-dichlorophenol (2,4-DCP)
  • Adsorbable organic halides (AOX)
  • Pilot granular activated carbon sequencing batch biofilm reactor (GAC-SBBR)
  • Recycled paper wastewater treatment
  • Response surface methodology (RSM)

ASJC Scopus subject areas

  • Environmental Engineering
  • Waste Management and Disposal
  • Management, Monitoring, Policy and Law

Cite this

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title = "Application of response surface methodology (RSM) for optimisation of COD, NH3-N and 2,4-DCP removal from recycled paper wastewater in a pilot-scale granular activated carbon sequencing batch biofilm reactor (GAC-SBBR)",
abstract = "In this study, the potential of a pilot-scale granular activated carbon sequencing batch biofilm reactor (GAC-SBBR) for removing chemical oxygen demand (COD), ammoniacal nitrogen (NH3-N) and 2,4-dichlorophenol (2,4-DCP) from recycled paper wastewater was assessed. For this purpose, the response surface methodology (RSM) was employed, using a central composite face-centred design (CCFD), to optimise three of the most important operating variables, i.e., hydraulic retention time (HRT), aeration rate (AR) and influent feed concentration (IFC), in the pilot-scale GAC-SBBR process for recycled paper wastewater treatment. Quadratic models were developed for the response variables, i.e., COD, NH3-N and 2,4-DCP removal, based on the high value (>0.9) of the coefficient of determination (R2) obtained from the analysis of variance (ANOVA). The optimal conditions were established at 750 mg COD/L IFC, 3.2 m3/min AR and 1 day HRT, corresponding to predicted COD, NH3-N and 2,4-DCP removal percentages of 94.8, 100 and 80.9{\%}, respectively.",
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author = "Muhamad, {Mohd Hafizuddin} and {Sheikh Abdullah}, {Siti Rozaimah} and Mohamad, {Abu Bakar} and {Abdul Rahman}, Rakmi and Kadhum, {Abdul Amir H.}",
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AU - Muhamad, Mohd Hafizuddin

AU - Sheikh Abdullah, Siti Rozaimah

AU - Mohamad, Abu Bakar

AU - Abdul Rahman, Rakmi

AU - Kadhum, Abdul Amir H.

PY - 2013/5/30

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