Effect of hydraulic retention time (HRT) on pentachlorophenol (PCP) and COD removal in a pilot GAC-SBBR system for the post-treatment of recycled paper mill wastewater

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

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

This study investigates the feasibility of using a pilot-scaled sequencing batch biofilm reactor (SBBR) with an option for granular activated carbon (GAC), at different hydraulic retention times (HRT) for the post-treatment of treated recycled paper industry wastewater containing potentially persistent and toxic pollutants, especially adsorbable organic halides (AOX). The environmental problems associated with AOX include their accumulation in the food chain and their persistence in nature. The pilot plant consists of a high-density polyethylene (HDPE) biofilm reactor with a diameter of 1.2 m, and a maximum water depth of 1.8 m, that is packed with 1111 g/L of 2-3 mm granular activated carbon (coconut shells). The effect of HRT on AOX (specifically PCP) and COD removal was investigated at varying hydraulic loading rates of 0.3- 0.8 m3/(m2 day). The HRT was investigated at three different levels varying from 1 to 3 days and the most suitable retention time, resulting in maximum overall removal of COD and PCP, was determined. The study demonstrated that at a workable HRT of 3 days and an average organic loading rate of 0.008 kg COD/m3 d, the PCP and COD removal efficiencies of the reactors were 100% and 86.9 ± 2.4%, respectively, at optimum pH of 7-8 and DO of 4-6 mg/L.

Original languageEnglish
Pages (from-to)50-59
Number of pages10
JournalDesalination and Water Treatment
Volume48
Issue number1-3
DOIs
Publication statusPublished - 2012

Fingerprint

PCP
Biofilms
Activated carbon
activated carbon
biofilm
Wastewater
mill
Hydraulics
hydraulics
wastewater
halide
High density polyethylenes
Pilot plants
food chain
water depth
persistence
removal
post-treatment
effect
reactor

Keywords

  • Adsorbable organic halides (AOX)
  • HRT
  • Pentachlorophenol (PCP)
  • Pilot GAC-SBBR
  • Post-treatment
  • Recycled paper industry

ASJC Scopus subject areas

  • Pollution
  • Water Science and Technology
  • Ocean Engineering

Cite this

Effect of hydraulic retention time (HRT) on pentachlorophenol (PCP) and COD removal in a pilot GAC-SBBR system for the post-treatment of recycled paper mill wastewater. / Muhamad, Mohd Hafizuddin; Sheikh Abdullah, Siti Rozaimah; Mohamad, Abu Bakar; Rahman, Rakmi Abdul; Kadhum, Abdul Amir H.

In: Desalination and Water Treatment, Vol. 48, No. 1-3, 2012, p. 50-59.

Research output: Contribution to journalArticle

@article{7de79ddd5204426ead94648d15619574,
title = "Effect of hydraulic retention time (HRT) on pentachlorophenol (PCP) and COD removal in a pilot GAC-SBBR system for the post-treatment of recycled paper mill wastewater",
abstract = "This study investigates the feasibility of using a pilot-scaled sequencing batch biofilm reactor (SBBR) with an option for granular activated carbon (GAC), at different hydraulic retention times (HRT) for the post-treatment of treated recycled paper industry wastewater containing potentially persistent and toxic pollutants, especially adsorbable organic halides (AOX). The environmental problems associated with AOX include their accumulation in the food chain and their persistence in nature. The pilot plant consists of a high-density polyethylene (HDPE) biofilm reactor with a diameter of 1.2 m, and a maximum water depth of 1.8 m, that is packed with 1111 g/L of 2-3 mm granular activated carbon (coconut shells). The effect of HRT on AOX (specifically PCP) and COD removal was investigated at varying hydraulic loading rates of 0.3- 0.8 m3/(m2 day). The HRT was investigated at three different levels varying from 1 to 3 days and the most suitable retention time, resulting in maximum overall removal of COD and PCP, was determined. The study demonstrated that at a workable HRT of 3 days and an average organic loading rate of 0.008 kg COD/m3 d, the PCP and COD removal efficiencies of the reactors were 100{\%} and 86.9 ± 2.4{\%}, respectively, at optimum pH of 7-8 and DO of 4-6 mg/L.",
keywords = "Adsorbable organic halides (AOX), HRT, Pentachlorophenol (PCP), Pilot GAC-SBBR, Post-treatment, Recycled paper industry",
author = "Muhamad, {Mohd Hafizuddin} and {Sheikh Abdullah}, {Siti Rozaimah} and Mohamad, {Abu Bakar} and Rahman, {Rakmi Abdul} and Kadhum, {Abdul Amir H.}",
year = "2012",
doi = "10.1080/19443994.2012.698794",
language = "English",
volume = "48",
pages = "50--59",
journal = "Desalination and Water Treatment",
issn = "1944-3994",
publisher = "Taylor and Francis Ltd.",
number = "1-3",

}

TY - JOUR

T1 - Effect of hydraulic retention time (HRT) on pentachlorophenol (PCP) and COD removal in a pilot GAC-SBBR system for the post-treatment of recycled paper mill wastewater

AU - Muhamad, Mohd Hafizuddin

AU - Sheikh Abdullah, Siti Rozaimah

AU - Mohamad, Abu Bakar

AU - Rahman, Rakmi Abdul

AU - Kadhum, Abdul Amir H.

PY - 2012

Y1 - 2012

N2 - This study investigates the feasibility of using a pilot-scaled sequencing batch biofilm reactor (SBBR) with an option for granular activated carbon (GAC), at different hydraulic retention times (HRT) for the post-treatment of treated recycled paper industry wastewater containing potentially persistent and toxic pollutants, especially adsorbable organic halides (AOX). The environmental problems associated with AOX include their accumulation in the food chain and their persistence in nature. The pilot plant consists of a high-density polyethylene (HDPE) biofilm reactor with a diameter of 1.2 m, and a maximum water depth of 1.8 m, that is packed with 1111 g/L of 2-3 mm granular activated carbon (coconut shells). The effect of HRT on AOX (specifically PCP) and COD removal was investigated at varying hydraulic loading rates of 0.3- 0.8 m3/(m2 day). The HRT was investigated at three different levels varying from 1 to 3 days and the most suitable retention time, resulting in maximum overall removal of COD and PCP, was determined. The study demonstrated that at a workable HRT of 3 days and an average organic loading rate of 0.008 kg COD/m3 d, the PCP and COD removal efficiencies of the reactors were 100% and 86.9 ± 2.4%, respectively, at optimum pH of 7-8 and DO of 4-6 mg/L.

AB - This study investigates the feasibility of using a pilot-scaled sequencing batch biofilm reactor (SBBR) with an option for granular activated carbon (GAC), at different hydraulic retention times (HRT) for the post-treatment of treated recycled paper industry wastewater containing potentially persistent and toxic pollutants, especially adsorbable organic halides (AOX). The environmental problems associated with AOX include their accumulation in the food chain and their persistence in nature. The pilot plant consists of a high-density polyethylene (HDPE) biofilm reactor with a diameter of 1.2 m, and a maximum water depth of 1.8 m, that is packed with 1111 g/L of 2-3 mm granular activated carbon (coconut shells). The effect of HRT on AOX (specifically PCP) and COD removal was investigated at varying hydraulic loading rates of 0.3- 0.8 m3/(m2 day). The HRT was investigated at three different levels varying from 1 to 3 days and the most suitable retention time, resulting in maximum overall removal of COD and PCP, was determined. The study demonstrated that at a workable HRT of 3 days and an average organic loading rate of 0.008 kg COD/m3 d, the PCP and COD removal efficiencies of the reactors were 100% and 86.9 ± 2.4%, respectively, at optimum pH of 7-8 and DO of 4-6 mg/L.

KW - Adsorbable organic halides (AOX)

KW - HRT

KW - Pentachlorophenol (PCP)

KW - Pilot GAC-SBBR

KW - Post-treatment

KW - Recycled paper industry

UR - http://www.scopus.com/inward/record.url?scp=84870223845&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84870223845&partnerID=8YFLogxK

U2 - 10.1080/19443994.2012.698794

DO - 10.1080/19443994.2012.698794

M3 - Article

AN - SCOPUS:84870223845

VL - 48

SP - 50

EP - 59

JO - Desalination and Water Treatment

JF - Desalination and Water Treatment

SN - 1944-3994

IS - 1-3

ER -