On-off control of aeration time in the simultaneous removal of ammonia and manganese using a biological aerated filter system

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Abstract

The biological aerated filter (BAF) system, a new alternative in drinking water treatment, was designed to remove NH4 +-N and Mn 2+ simultaneously. This study aimed to control the aeration time in the BAF system for simultaneous NH4 +-N and Mn2+ removal to achieve the Malaysian effluent quality regulation for drinking water. The experiment was conducted under four strategies of S1, S2, S3 and S4. The results demonstrated that acceptable levels of NH4 +-N and Mn2+ were achieved over a 6 h aeration period (S1), producing effluent concentrations of 0.7 mg/L (93.2% removal) and 0.08 mg/L (79.6% removal), respectively. At the initial treatment of S1 and S2, the dissolved oxygen (DO) level rapidly increased until it reached a saturated concentration (6.8 mg/L DO) after 2 h period. Automatic on-off aeration time to maintain 3 mg/L DO set point (S4) resulted with a good effluent quality of NH 4 +-N and Mn2+ compared with the 2 mg/L DO set point (S3) which did not meet the regulated standard limits. Through the automatic on-off aeration time, the saturated and excessive DO levels in the BAF system can be avoided consequently reduce the wastage of energy and electrical consumption for simultaneous NH4 +-N and Mn2+ removal from drinking water treatment.

Original languageEnglish
Pages (from-to)415-422
Number of pages8
JournalProcess Safety and Environmental Protection
Volume91
Issue number5
DOIs
Publication statusPublished - Sep 2013

Fingerprint

Dissolved oxygen
Manganese
Ammonia
aeration
manganese
dissolved oxygen
ammonia
filter
Potable water
Drinking Water
Effluents
effluent
Water treatment
drinking water
removal
energy
experiment
Experiments
drinking water treatment

Keywords

  • Biological aerated filter
  • Dissolved oxygen
  • Drinking water treatment
  • On-off aeration
  • Real-time monitoring
  • Simultaneous ammonia and manganese removals

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Safety, Risk, Reliability and Quality
  • Environmental Engineering
  • Environmental Chemistry

Cite this

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title = "On-off control of aeration time in the simultaneous removal of ammonia and manganese using a biological aerated filter system",
abstract = "The biological aerated filter (BAF) system, a new alternative in drinking water treatment, was designed to remove NH4 +-N and Mn 2+ simultaneously. This study aimed to control the aeration time in the BAF system for simultaneous NH4 +-N and Mn2+ removal to achieve the Malaysian effluent quality regulation for drinking water. The experiment was conducted under four strategies of S1, S2, S3 and S4. The results demonstrated that acceptable levels of NH4 +-N and Mn2+ were achieved over a 6 h aeration period (S1), producing effluent concentrations of 0.7 mg/L (93.2{\%} removal) and 0.08 mg/L (79.6{\%} removal), respectively. At the initial treatment of S1 and S2, the dissolved oxygen (DO) level rapidly increased until it reached a saturated concentration (6.8 mg/L DO) after 2 h period. Automatic on-off aeration time to maintain 3 mg/L DO set point (S4) resulted with a good effluent quality of NH 4 +-N and Mn2+ compared with the 2 mg/L DO set point (S3) which did not meet the regulated standard limits. Through the automatic on-off aeration time, the saturated and excessive DO levels in the BAF system can be avoided consequently reduce the wastage of energy and electrical consumption for simultaneous NH4 +-N and Mn2+ removal from drinking water treatment.",
keywords = "Biological aerated filter, Dissolved oxygen, Drinking water treatment, On-off aeration, Real-time monitoring, Simultaneous ammonia and manganese removals",
author = "{Abu Hasan}, Hassimi and {Sheikh Abdullah}, {Siti Rozaimah} and Kamarudin, {Siti Kartom} and {Tan Kofli}, Noorhisham",
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AU - Abu Hasan, Hassimi

AU - Sheikh Abdullah, Siti Rozaimah

AU - Kamarudin, Siti Kartom

AU - Tan Kofli, Noorhisham

PY - 2013/9

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N2 - The biological aerated filter (BAF) system, a new alternative in drinking water treatment, was designed to remove NH4 +-N and Mn 2+ simultaneously. This study aimed to control the aeration time in the BAF system for simultaneous NH4 +-N and Mn2+ removal to achieve the Malaysian effluent quality regulation for drinking water. The experiment was conducted under four strategies of S1, S2, S3 and S4. The results demonstrated that acceptable levels of NH4 +-N and Mn2+ were achieved over a 6 h aeration period (S1), producing effluent concentrations of 0.7 mg/L (93.2% removal) and 0.08 mg/L (79.6% removal), respectively. At the initial treatment of S1 and S2, the dissolved oxygen (DO) level rapidly increased until it reached a saturated concentration (6.8 mg/L DO) after 2 h period. Automatic on-off aeration time to maintain 3 mg/L DO set point (S4) resulted with a good effluent quality of NH 4 +-N and Mn2+ compared with the 2 mg/L DO set point (S3) which did not meet the regulated standard limits. Through the automatic on-off aeration time, the saturated and excessive DO levels in the BAF system can be avoided consequently reduce the wastage of energy and electrical consumption for simultaneous NH4 +-N and Mn2+ removal from drinking water treatment.

AB - The biological aerated filter (BAF) system, a new alternative in drinking water treatment, was designed to remove NH4 +-N and Mn 2+ simultaneously. This study aimed to control the aeration time in the BAF system for simultaneous NH4 +-N and Mn2+ removal to achieve the Malaysian effluent quality regulation for drinking water. The experiment was conducted under four strategies of S1, S2, S3 and S4. The results demonstrated that acceptable levels of NH4 +-N and Mn2+ were achieved over a 6 h aeration period (S1), producing effluent concentrations of 0.7 mg/L (93.2% removal) and 0.08 mg/L (79.6% removal), respectively. At the initial treatment of S1 and S2, the dissolved oxygen (DO) level rapidly increased until it reached a saturated concentration (6.8 mg/L DO) after 2 h period. Automatic on-off aeration time to maintain 3 mg/L DO set point (S4) resulted with a good effluent quality of NH 4 +-N and Mn2+ compared with the 2 mg/L DO set point (S3) which did not meet the regulated standard limits. Through the automatic on-off aeration time, the saturated and excessive DO levels in the BAF system can be avoided consequently reduce the wastage of energy and electrical consumption for simultaneous NH4 +-N and Mn2+ removal from drinking water treatment.

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