HRT effect on simultaneous cod, ammonia and manganese removal from drinking water treatment system using a biological aerated filter (BAF)

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2 Citations (Scopus)

Abstract

Three different hydraulic retention times (HRTs) were investigated for NH4 +-N and Mn2+ removal using an upflow biological aerated system (BAF) as a new approach in drinking water treatment system. Currently in Malaysia, there is no specific treatment for NH4 +-N and Mn2+ in drinking water treatment plant. BAF is a well known system in biological treatment for wastewater but not for drinking water treatment. This study showed that at 24 hours operation of BAF system, about 91.3% of COD, 94.4% of NH4 +- N and 83.4% of Mn2+ were efficiently removed. When HRT was decreased to 12 and 6 hours, there was insignificant removal difference in COD and NH4 +-N removal. Instead, the Mn2+ removal significantly showed an increasing trend (p<0.05) as the HRT was decreased with the removal percentages of 92.1% (12 hours) and 94.8% (6 hours). Real-time monitoring through pH, ORP and DO profiles confirmed that completed simultaneous NH4 +-N and Mn2+ removal occurred within 6 to 7 hours HRT.

Original languageEnglish
Pages (from-to)199-207
Number of pages9
JournalEnvironmental Engineering and Management Journal
Volume17
Issue number1
Publication statusPublished - 1 Jan 2018

Fingerprint

Manganese removal (water treatment)
Water treatment
Potable water
Ammonia
manganese
ammonia
Hydraulics
filter
hydraulics
Water treatment plants
Biological systems
drinking water treatment
effect
removal
Wastewater
wastewater
Monitoring
monitoring

Keywords

  • BAF system
  • Biofilm
  • Drinking water treatment
  • HRT
  • Simultaneous ammonia and manganese removal

ASJC Scopus subject areas

  • Environmental Engineering
  • Pollution
  • Management, Monitoring, Policy and Law

Cite this

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title = "HRT effect on simultaneous cod, ammonia and manganese removal from drinking water treatment system using a biological aerated filter (BAF)",
abstract = "Three different hydraulic retention times (HRTs) were investigated for NH4 +-N and Mn2+ removal using an upflow biological aerated system (BAF) as a new approach in drinking water treatment system. Currently in Malaysia, there is no specific treatment for NH4 +-N and Mn2+ in drinking water treatment plant. BAF is a well known system in biological treatment for wastewater but not for drinking water treatment. This study showed that at 24 hours operation of BAF system, about 91.3{\%} of COD, 94.4{\%} of NH4 +- N and 83.4{\%} of Mn2+ were efficiently removed. When HRT was decreased to 12 and 6 hours, there was insignificant removal difference in COD and NH4 +-N removal. Instead, the Mn2+ removal significantly showed an increasing trend (p<0.05) as the HRT was decreased with the removal percentages of 92.1{\%} (12 hours) and 94.8{\%} (6 hours). Real-time monitoring through pH, ORP and DO profiles confirmed that completed simultaneous NH4 +-N and Mn2+ removal occurred within 6 to 7 hours HRT.",
keywords = "BAF system, Biofilm, Drinking water treatment, HRT, Simultaneous ammonia and manganese removal",
author = "{Abu Hasan}, Hassimi and {Sheikh Abdullah}, {Siti Rozaimah} and Kamarudin, {Siti Kartom} and {Tan Kofli}, Noorhisham",
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AU - Tan Kofli, Noorhisham

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N2 - Three different hydraulic retention times (HRTs) were investigated for NH4 +-N and Mn2+ removal using an upflow biological aerated system (BAF) as a new approach in drinking water treatment system. Currently in Malaysia, there is no specific treatment for NH4 +-N and Mn2+ in drinking water treatment plant. BAF is a well known system in biological treatment for wastewater but not for drinking water treatment. This study showed that at 24 hours operation of BAF system, about 91.3% of COD, 94.4% of NH4 +- N and 83.4% of Mn2+ were efficiently removed. When HRT was decreased to 12 and 6 hours, there was insignificant removal difference in COD and NH4 +-N removal. Instead, the Mn2+ removal significantly showed an increasing trend (p<0.05) as the HRT was decreased with the removal percentages of 92.1% (12 hours) and 94.8% (6 hours). Real-time monitoring through pH, ORP and DO profiles confirmed that completed simultaneous NH4 +-N and Mn2+ removal occurred within 6 to 7 hours HRT.

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