Abstract—Bacteriological quality of reclaimed wastewater
used for irrigation of thirty public parks located in Dubai and
Sharjah was evaluated. Bacterial contaminants (Escherichia
coli, Salmonella, Shigella and Enterobacter aerogenes) were
tested by membrane filtration technique using Bismuth
Sulphite Agar (BSA) and Violet Red Bile Agar (VRBA) media.
The results showed the presence of Salmonella, Shigella, E. coli,
Entereobacter aerogenes and other unidentified bacterial
species on various selective media with different occurrence
rates. The most common type of bacteria observed on the BSA
media were Shigella (63%), E. coli (30%), Salmonella (10%)
and a large percentage of unidentified bacteria (97%). Whereas
on VRBA media the most common bacteria detected were E.
coli (83%), unidentified bacteria (76%) followed by
Enterobacter aerogenes (70%). The overall results obtained in
the present study demonstrated that only 40% of the reclaimed
wastewater samples examined complied with the local and
widely accepted international standards of less than 1000 fecal
coliforms/100mL for unrestricted irrigation. Further studies
are recommended to determine the survival rate of Salmonella
and other coliform group bacteria in the soil irrigated by
reclaimed wastewater. In addition, detailed research should be
conducted to establish the identity of Salmonella, Shigella (up to
the species and sub-species level) and other unidentified
bacteria which were detected in most of the reclaimed water
samples.
Index Terms—Bacteriological quality, reclaimed wastewater,
public parks.
Amna Salem Hazim Al Amimi was with the Environmental Health major
at the Department of Natural Science & Public Health, Zayed University,
Dubai, UAE. She is now with the Department of Environment, Health and
Safety, National Oil Company (ENOC), Dubai, UAE (e-mail:
amna.alamimi88@gmail.com).
Munawwar Ali Khan and Rania Dghaim are with Department of Natural
Science and Public Health, College of Sustainability Sciences and
Humanities, Zayed University, Dubai, P.O.Box: 19282, UAE (e-mail:
Munawwar.Khan@ zu.ac.ae; Rania.Dghaim@ zu.ac.ae).
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Cite:Amna Salem Hazim Al Amimi, Munawwar Ali Khan, and Rania Dghaim, "Bacteriological Quality of Reclaimed Wastewater Used for Irrigation of Public Parks in the United Arab Emirates," International Journal of Environmental Science and Development vol. 5, no. 3, pp. 309-312, 2014.