Level and transport pattern of faecal coliform bacteria from tropical urban catchments

M. F. Chow, Z. Yusop, Mohd. Ekhwan Toriman

Research output: Contribution to journalArticle

15 Citations (Scopus)

Abstract

Urbanization and frequent storms play important roles in increasing faecal bacteria pollution, especially for tropical urban catchments. However, only little information on the faecal bacteria levels from different land use types and the factors that influence bacteria concentrations is available. Thus, the objectives of this study were to quantify the levels and transport mechanism of faecal coliforms (FCs) from residential and commercial catchments. Stormwaters were sampled and the runoff flow rates were measured from both catchments during four storm events in Skudai, Malaysia. The samples were then analysed for FC, biochemical oxygen demand (BOD5), chemical oxygen demand (COD), total suspended solids (TSS) and ammoniacal-nitrogen (NH3-N) concentrations. Intra-storm and inter-storm characteristics of FC bacteria were investigated in order to identify the level and transport pattern of FC. The commercial catchment showed significantly higher event mean concentration (EMC) of FC than the residential catchment. For the residential catchment, the highest bacterial concentrations occurred during the early part of stormwater runoff with peak concentrations usually preceding the peak flow. First flush effect was more prevalent at the residential catchment.

Original languageEnglish
Pages (from-to)1822-1831
Number of pages10
JournalWater Science and Technology
Volume67
Issue number8
DOIs
Publication statusPublished - 2013

Fingerprint

Coliform bacteria
coliform bacterium
fecal coliform
Catchments
catchment
Bacteria
Runoff
stormwater
runoff
Biochemical oxygen demand
Chemical oxygen demand
peak flow
biochemical oxygen demand
Land use
chemical oxygen demand
urbanization
Pollution
Flow rate
Nitrogen
land use

Keywords

  • Bacteria
  • Event mean concentration
  • Faecal coliform
  • First flush
  • Stormwater

ASJC Scopus subject areas

  • Environmental Engineering
  • Water Science and Technology

Cite this

Level and transport pattern of faecal coliform bacteria from tropical urban catchments. / Chow, M. F.; Yusop, Z.; Toriman, Mohd. Ekhwan.

In: Water Science and Technology, Vol. 67, No. 8, 2013, p. 1822-1831.

Research output: Contribution to journalArticle

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