Effects of induced salinity on BOD5 reaction kinetics of river water samples

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 conditi...

Full description

Saved in:
Bibliographic Details
Main Authors: Zainudin, Zaki, Mohamed, Maketab, Ramli, Mohd. Rosslim
Format: Article
Published: Malaysian Society of Analytical Sciences 2010
Subjects:
Online Access:http://eprints.utm.my/id/eprint/634/
http://www.ukm.my/mjas/v14_n1/Zaki.pdf
Tags: Add Tag
No Tags, Be the first to tag this record!
id my.utm.634
record_format eprints
spelling my.utm.6342012-11-19T07:51:26Z http://eprints.utm.my/id/eprint/634/ Effects of induced salinity on BOD5 reaction kinetics of river water samples Zainudin, Zaki Mohamed, Maketab Ramli, Mohd. Rosslim QD Chemistry TP Chemical technology 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 2010 Article PeerReviewed Zainudin, Zaki and Mohamed, Maketab and Ramli, Mohd. Rosslim (2010) Effects of induced salinity on BOD5 reaction kinetics of river water samples. The Malaysian Journal of Analytical Sciences, 14 (1). pp. 24-31. ISSN 1394-2506 http://www.ukm.my/mjas/v14_n1/Zaki.pdf
institution Universiti Teknologi Malaysia
building UTM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Malaysia
content_source UTM Institutional Repository
url_provider http://eprints.utm.my/
topic QD Chemistry
TP Chemical technology
spellingShingle QD Chemistry
TP Chemical technology
Zainudin, Zaki
Mohamed, Maketab
Ramli, Mohd. Rosslim
Effects of induced salinity on BOD5 reaction kinetics of river water samples
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).
format Article
author Zainudin, Zaki
Mohamed, Maketab
Ramli, Mohd. Rosslim
author_facet Zainudin, Zaki
Mohamed, Maketab
Ramli, Mohd. Rosslim
author_sort Zainudin, Zaki
title Effects of induced salinity on BOD5 reaction kinetics of river water samples
title_short Effects of induced salinity on BOD5 reaction kinetics of river water samples
title_full Effects of induced salinity on BOD5 reaction kinetics of river water samples
title_fullStr Effects of induced salinity on BOD5 reaction kinetics of river water samples
title_full_unstemmed Effects of induced salinity on BOD5 reaction kinetics of river water samples
title_sort effects of induced salinity on bod5 reaction kinetics of river water samples
publisher Malaysian Society of Analytical Sciences
publishDate 2010
url http://eprints.utm.my/id/eprint/634/
http://www.ukm.my/mjas/v14_n1/Zaki.pdf
_version_ 1643643148039094272
score 13.211869