Effects of induced salinity on BOD reaction kinetics of river water samples (Kesan peningkatan kemasinan terhadap kinetik tindak balas keperluan oksigen biokimia 5 hari menggunakan sampel air sungai)
Biochemical Oxygen Demand (BOD) is a typical parameter used in assessing organic pollution strength in surface waters and is normally tested over a 5-day period at an incubation temperature of 20°C (BOD5). The accuracy of this constituent, in assessing organic contamination under brackish conditions...
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| Format: | Article |
| Language: | English |
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Malaysian Society of Analytical Sciences (ANALIS), UKM
2010
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| Online Access: | http://irep.iium.edu.my/3053/ http://irep.iium.edu.my/3053/1/Zaki.pdf |
| _version_ | 1848776091548778496 |
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| author | Zainudin, Zaki Mohamed, Maketab Ramli, Mohd. Rosslim |
| author_facet | Zainudin, Zaki Mohamed, Maketab Ramli, Mohd. Rosslim |
| author_sort | Zainudin, Zaki |
| building | IIUM Repository |
| collection | Online Access |
| description | Biochemical Oxygen Demand (BOD) is a typical parameter used in assessing organic pollution strength in surface waters and is normally tested over a 5-day period at an incubation temperature of 20°C (BOD5). The accuracy of this constituent, in assessing organic contamination under brackish conditions has always been known to be somewhat limited as elevated concentrations of chloride (Cl-) disrupts microbial activity from osmotic cellular degradation, causing the bottle decay rate, k1, to be effected. The aim of this study was to quantify the effects of induced salinity on k1, with varying levels of sodium chloride (NaCl) concentration (5 – 25 ppt), towards six mildly polluted to polluted tropical river water samples. The observed variations ranged between 0.10 – 0.25/day of k1 for the stipulated samples using the Thomas graphical method for determination of the k1 rate constant. Sg. Rawang depicted the highest quantum of difference in k1, with decrement from 0.754/day (0 ppt) to 0.513/day (25 ppt), whereas Sg. Klang showed the lowest quantum, from 0.306/day (0 ppt) to 0.265/day (25 ppt). |
| first_indexed | 2025-11-14T14:24:35Z |
| format | Article |
| id | iium-3053 |
| institution | International Islamic University Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-14T14:24:35Z |
| publishDate | 2010 |
| publisher | Malaysian Society of Analytical Sciences (ANALIS), UKM |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | iium-30532011-10-03T04:48:26Z http://irep.iium.edu.my/3053/ Effects of induced salinity on BOD reaction kinetics of river water samples (Kesan peningkatan kemasinan terhadap kinetik tindak balas keperluan oksigen biokimia 5 hari menggunakan sampel air sungai) Zainudin, Zaki Mohamed, Maketab Ramli, Mohd. Rosslim TA170 Environmental engineering. Sustainable engineering TC401 River, lake, and water-supply engineering (General) TD169 Environmental protection TD172 Environmental pollution Biochemical Oxygen Demand (BOD) is a typical parameter used in assessing organic pollution strength in surface waters and is normally tested over a 5-day period at an incubation temperature of 20°C (BOD5). The accuracy of this constituent, in assessing organic contamination under brackish conditions has always been known to be somewhat limited as elevated concentrations of chloride (Cl-) disrupts microbial activity from osmotic cellular degradation, causing the bottle decay rate, k1, to be effected. The aim of this study was to quantify the effects of induced salinity on k1, with varying levels of sodium chloride (NaCl) concentration (5 – 25 ppt), towards six mildly polluted to polluted tropical river water samples. The observed variations ranged between 0.10 – 0.25/day of k1 for the stipulated samples using the Thomas graphical method for determination of the k1 rate constant. Sg. Rawang depicted the highest quantum of difference in k1, with decrement from 0.754/day (0 ppt) to 0.513/day (25 ppt), whereas Sg. Klang showed the lowest quantum, from 0.306/day (0 ppt) to 0.265/day (25 ppt). Malaysian Society of Analytical Sciences (ANALIS), UKM 2010 Article PeerReviewed application/pdf en http://irep.iium.edu.my/3053/1/Zaki.pdf Zainudin, Zaki and Mohamed, Maketab and Ramli, Mohd. Rosslim (2010) Effects of induced salinity on BOD reaction kinetics of river water samples (Kesan peningkatan kemasinan terhadap kinetik tindak balas keperluan oksigen biokimia 5 hari menggunakan sampel air sungai). The Malaysian Journal of Analytical Sciences, 14 (1). pp. 24-31. ISSN 1394-2506 http://pkukmweb.ukm.my/~mjas/v14_n1/Zaki.pdf |
| spellingShingle | TA170 Environmental engineering. Sustainable engineering TC401 River, lake, and water-supply engineering (General) TD169 Environmental protection TD172 Environmental pollution Zainudin, Zaki Mohamed, Maketab Ramli, Mohd. Rosslim Effects of induced salinity on BOD reaction kinetics of river water samples (Kesan peningkatan kemasinan terhadap kinetik tindak balas keperluan oksigen biokimia 5 hari menggunakan sampel air sungai) |
| title | Effects of induced salinity on BOD reaction kinetics of river water samples (Kesan peningkatan kemasinan terhadap kinetik tindak balas keperluan oksigen biokimia 5 hari menggunakan sampel air sungai) |
| title_full | Effects of induced salinity on BOD reaction kinetics of river water samples (Kesan peningkatan kemasinan terhadap kinetik tindak balas keperluan oksigen biokimia 5 hari menggunakan sampel air sungai) |
| title_fullStr | Effects of induced salinity on BOD reaction kinetics of river water samples (Kesan peningkatan kemasinan terhadap kinetik tindak balas keperluan oksigen biokimia 5 hari menggunakan sampel air sungai) |
| title_full_unstemmed | Effects of induced salinity on BOD reaction kinetics of river water samples (Kesan peningkatan kemasinan terhadap kinetik tindak balas keperluan oksigen biokimia 5 hari menggunakan sampel air sungai) |
| title_short | Effects of induced salinity on BOD reaction kinetics of river water samples (Kesan peningkatan kemasinan terhadap kinetik tindak balas keperluan oksigen biokimia 5 hari menggunakan sampel air sungai) |
| title_sort | effects of induced salinity on bod reaction kinetics of river water samples (kesan peningkatan kemasinan terhadap kinetik tindak balas keperluan oksigen biokimia 5 hari menggunakan sampel air sungai) |
| topic | TA170 Environmental engineering. Sustainable engineering TC401 River, lake, and water-supply engineering (General) TD169 Environmental protection TD172 Environmental pollution |
| url | http://irep.iium.edu.my/3053/ http://irep.iium.edu.my/3053/ http://irep.iium.edu.my/3053/1/Zaki.pdf |