Removal of NH+ 4-N ion in drinking water treatment using locally isolated heterotrophic nitrifier

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Abstract

Batch removal treatment of NH+ 4-N from drinking water was carried using locally isolated heterotrophic nitrifier of Bacillus cereus I6. This work investigates the effect of initial NH+ 4-N concentration (5-25 mg/L), initial pH (pH 3-10) and inoculum size (0.5-3.0% v/v) on the removal of NH+ 4-N. From the isolation, screening and identification, heterotrophic B. cereus I6 (98% similarity) was the most potential degrading strain in NH+ 4-N removal. The removal was high at initial NH+ 4-N concentration of 5mg/L (62%), initial pH of 5 (69.5%) and inoculum size of 3.0% v/v (85%). The removal decreased from 62 to 24.8% when the initial NH+ 4-N concentration was increased, while it had increased from 29 to 85% when the inoculum size was being increased. The most suitable conditions for NH+ 4-N removal by heterotrophic of B. cereus I6 was observed at an initial pH of 5.

Original languageEnglish
Pages (from-to)294-301
Number of pages8
JournalDesalination and Water Treatment
Volume50
Issue number1-3
DOIs
Publication statusPublished - 2012

Fingerprint

Water treatment
Potable water
Bacillus cereus
ion
Ions
drinking water treatment
removal
Screening
drinking water

Keywords

  • Bacillus cereus
  • Biological aerated filter
  • Drinking water treatment
  • Heterotrophic nitrifier

ASJC Scopus subject areas

  • Pollution
  • Water Science and Technology
  • Ocean Engineering

Cite this

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title = "Removal of NH+ 4-N ion in drinking water treatment using locally isolated heterotrophic nitrifier",
abstract = "Batch removal treatment of NH+ 4-N from drinking water was carried using locally isolated heterotrophic nitrifier of Bacillus cereus I6. This work investigates the effect of initial NH+ 4-N concentration (5-25 mg/L), initial pH (pH 3-10) and inoculum size (0.5-3.0{\%} v/v) on the removal of NH+ 4-N. From the isolation, screening and identification, heterotrophic B. cereus I6 (98{\%} similarity) was the most potential degrading strain in NH+ 4-N removal. The removal was high at initial NH+ 4-N concentration of 5mg/L (62{\%}), initial pH of 5 (69.5{\%}) and inoculum size of 3.0{\%} v/v (85{\%}). The removal decreased from 62 to 24.8{\%} when the initial NH+ 4-N concentration was increased, while it had increased from 29 to 85{\%} when the inoculum size was being increased. The most suitable conditions for NH+ 4-N removal by heterotrophic of B. cereus I6 was observed at an initial pH of 5.",
keywords = "Bacillus cereus, Biological aerated filter, Drinking water treatment, Heterotrophic nitrifier",
author = "{Abu Hasan}, Hassimi and {Sheikh Abdullah}, {Siti Rozaimah} and {Tan Kofli}, Noorhisham and Kamarudin, {Siti Kartom}",
year = "2012",
doi = "10.1080/19443994.2012.719717",
language = "English",
volume = "50",
pages = "294--301",
journal = "Desalination and Water Treatment",
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publisher = "Taylor and Francis Ltd.",
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T1 - Removal of NH+ 4-N ion in drinking water treatment using locally isolated heterotrophic nitrifier

AU - Abu Hasan, Hassimi

AU - Sheikh Abdullah, Siti Rozaimah

AU - Tan Kofli, Noorhisham

AU - Kamarudin, Siti Kartom

PY - 2012

Y1 - 2012

N2 - Batch removal treatment of NH+ 4-N from drinking water was carried using locally isolated heterotrophic nitrifier of Bacillus cereus I6. This work investigates the effect of initial NH+ 4-N concentration (5-25 mg/L), initial pH (pH 3-10) and inoculum size (0.5-3.0% v/v) on the removal of NH+ 4-N. From the isolation, screening and identification, heterotrophic B. cereus I6 (98% similarity) was the most potential degrading strain in NH+ 4-N removal. The removal was high at initial NH+ 4-N concentration of 5mg/L (62%), initial pH of 5 (69.5%) and inoculum size of 3.0% v/v (85%). The removal decreased from 62 to 24.8% when the initial NH+ 4-N concentration was increased, while it had increased from 29 to 85% when the inoculum size was being increased. The most suitable conditions for NH+ 4-N removal by heterotrophic of B. cereus I6 was observed at an initial pH of 5.

AB - Batch removal treatment of NH+ 4-N from drinking water was carried using locally isolated heterotrophic nitrifier of Bacillus cereus I6. This work investigates the effect of initial NH+ 4-N concentration (5-25 mg/L), initial pH (pH 3-10) and inoculum size (0.5-3.0% v/v) on the removal of NH+ 4-N. From the isolation, screening and identification, heterotrophic B. cereus I6 (98% similarity) was the most potential degrading strain in NH+ 4-N removal. The removal was high at initial NH+ 4-N concentration of 5mg/L (62%), initial pH of 5 (69.5%) and inoculum size of 3.0% v/v (85%). The removal decreased from 62 to 24.8% when the initial NH+ 4-N concentration was increased, while it had increased from 29 to 85% when the inoculum size was being increased. The most suitable conditions for NH+ 4-N removal by heterotrophic of B. cereus I6 was observed at an initial pH of 5.

KW - Bacillus cereus

KW - Biological aerated filter

KW - Drinking water treatment

KW - Heterotrophic nitrifier

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