Microbial risk assessment of surface waters in Dhaka
This thesis is submitted in partial fulfilment of the requirements for the degree of Bachelor of Science in Biotechnology, 2019.
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BRAC University
2019
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| Mynediad Ar-lein: | http://hdl.handle.net/10361/11679 |
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10361-116792019-09-30T05:29:01Z Microbial risk assessment of surface waters in Dhaka Nadeem, Abrar Siddiqee, Mahbubul Department of Mathematics and Natural Sciences, BRAC University Total coliform Fecal coliform Contamination World Health Organization Drinking water--Health aspects Drinking water--Microbiology Risk assessment Microbial contamination This thesis is submitted in partial fulfilment of the requirements for the degree of Bachelor of Science in Biotechnology, 2019. Cataloged from PDF version of thesis. Includes bibliographical references (page 17-20). The purpose of the research work is to examine the water quality of three major water sources of Dhaka city on basis of the presence of microbial contamination. This research has been carried out for a year and the presence of total coliform and the fecal coliform in the surface waters of Dhaka city have been measured. During the study, water samples were collected from three water bodies (Hatirjheel Lake, Gulshan Lake, and Buriganga River) during two seasons (winter and summer). Average coliform counts for single grab samples from Hatirjheel, Gulshan, and Buriganga were 3475 cfu/ml, 7112cfu/mL, 10610cfu/mL respectively during summer and 15860 cfu/ml, 9990 cfu/mL, 45400 cfu/mL respectively during winter. Similarly, average fecal coliform counts for single grab samples from Hatirjheel, Gulshan, and Buriganga were 390cfu/mL, 1352cfu/mL, 362cfu/mL respectively during summer and 447cfu/mL, 183cfu/mL, 923cfu/mL respectively during winter. While total coliform counts were higher during summer, fecal coliform contamination was generally higher during winter in these water bodies. Overall, all three water bodies were heavily polluted with counts of fecal indicator bacteria being two orders of magnitude higher than the maximum permissible limit for water bodies to be used for recreation purpose. Therefore, this study highlights the importance for implementing mitigation strategies to make these water bodies safe for human activities. Abrar Nadeem B. Biotechnology 2019-04-03T05:29:36Z 2019-04-03T05:29:36Z 2019 2019-03 Thesis ID 14336007 http://hdl.handle.net/10361/11679 en BRAC University theses are protected by copyright. They may be viewed from this source for any purpose, but reproduction or distribution in any format is prohibited without written permission. 24 pages application/pdf BRAC University |
| institution |
Brac University |
| collection |
Institutional Repository |
| language |
English |
| topic |
Total coliform Fecal coliform Contamination World Health Organization Drinking water--Health aspects Drinking water--Microbiology Risk assessment Microbial contamination |
| spellingShingle |
Total coliform Fecal coliform Contamination World Health Organization Drinking water--Health aspects Drinking water--Microbiology Risk assessment Microbial contamination Nadeem, Abrar Microbial risk assessment of surface waters in Dhaka |
| description |
This thesis is submitted in partial fulfilment of the requirements for the degree of Bachelor of Science in Biotechnology, 2019. |
| author2 |
Siddiqee, Mahbubul |
| author_facet |
Siddiqee, Mahbubul Nadeem, Abrar |
| format |
Thesis |
| author |
Nadeem, Abrar |
| author_sort |
Nadeem, Abrar |
| title |
Microbial risk assessment of surface waters in Dhaka |
| title_short |
Microbial risk assessment of surface waters in Dhaka |
| title_full |
Microbial risk assessment of surface waters in Dhaka |
| title_fullStr |
Microbial risk assessment of surface waters in Dhaka |
| title_full_unstemmed |
Microbial risk assessment of surface waters in Dhaka |
| title_sort |
microbial risk assessment of surface waters in dhaka |
| publisher |
BRAC University |
| publishDate |
2019 |
| url |
http://hdl.handle.net/10361/11679 |
| work_keys_str_mv |
AT nadeemabrar microbialriskassessmentofsurfacewatersindhaka |
| _version_ |
1814307052239978496 |