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Oxygen demand of different of sediment at Semariang Batu

Sediment oxygen demand (SOD) is the oxygen consumption exerted by bottom sediment to the overlying water. The uptake of dissolved oxygen (DO) by sediment is usually attributed to the aerobic decomposition of organic matter by microorganism at sediment-water interface and reaction of oxygen with anae...

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Main Author: Ng, Chiat Siew
Format: Final Year Project Report
Language:English
Published: Universiti Malaysia Sarawak, (UNIMAS) 2009
Subjects:
GE Environmental Sciences
Online Access:http://ir.unimas.my/id/eprint/8717/8/Oxygen%20Demand%20of%20Different%20Types%20of%20Sediment%20at%20Semariang%20Batu.pdf
http://ir.unimas.my/id/eprint/8717/
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spelling my.unimas.ir.87172024-01-23T07:14:18Z http://ir.unimas.my/id/eprint/8717/ Oxygen demand of different of sediment at Semariang Batu Ng, Chiat Siew GE Environmental Sciences Sediment oxygen demand (SOD) is the oxygen consumption exerted by bottom sediment to the overlying water. The uptake of dissolved oxygen (DO) by sediment is usually attributed to the aerobic decomposition of organic matter by microorganism at sediment-water interface and reaction of oxygen with anaerobic respiration by-products. Because the sediments are repository for decaying organic matter, SOD is often a major contributor to DO depletion in poorly fluxed rivers. Low DO concentrations can be detrimental to fish and other aquatic life in a stream. In this study, SOD20 values obtained at five sampling stations ranged from 0.04 to 0.44 gO2/m2day. The benthic sediment quality was classified as clean to moderately clean base on this range. Organic matter, total phosphorus and total kjeldahl nitrogen were ranged from 10.59 to 26.46%, 287.5 to 1445.83 mg/kg and 508.33 to 1277.08mg/kg respectively. Linear regression analysis had been assessed as well in order to determine the relationship between SOD with organic matter, nutrient content and particle size. Results of the present study supported the hypothesis this study that organic matter and nutrient content were major factors that contributed to oxygen demand within the study site. However, it is also noted that there was a poor correlation between sand percentages and SOD values. Universiti Malaysia Sarawak, (UNIMAS) 2009 Final Year Project Report NonPeerReviewed text en http://ir.unimas.my/id/eprint/8717/8/Oxygen%20Demand%20of%20Different%20Types%20of%20Sediment%20at%20Semariang%20Batu.pdf Ng, Chiat Siew (2009) Oxygen demand of different of sediment at Semariang Batu. [Final Year Project Report] (Unpublished)
institution Universiti Malaysia Sarawak
building Centre for Academic Information Services (CAIS)
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaysia Sarawak
content_source UNIMAS Institutional Repository
url_provider http://ir.unimas.my/
language English
topic GE Environmental Sciences
spellingShingle GE Environmental Sciences
Ng, Chiat Siew
Oxygen demand of different of sediment at Semariang Batu
description Sediment oxygen demand (SOD) is the oxygen consumption exerted by bottom sediment to the overlying water. The uptake of dissolved oxygen (DO) by sediment is usually attributed to the aerobic decomposition of organic matter by microorganism at sediment-water interface and reaction of oxygen with anaerobic respiration by-products. Because the sediments are repository for decaying organic matter, SOD is often a major contributor to DO depletion in poorly fluxed rivers. Low DO concentrations can be detrimental to fish and other aquatic life in a stream. In this study, SOD20 values obtained at five sampling stations ranged from 0.04 to 0.44 gO2/m2day. The benthic sediment quality was classified as clean to moderately clean base on this range. Organic matter, total phosphorus and total kjeldahl nitrogen were ranged from 10.59 to 26.46%, 287.5 to 1445.83 mg/kg and 508.33 to 1277.08mg/kg respectively. Linear regression analysis had been assessed as well in order to determine the relationship between SOD with organic matter, nutrient content and particle size. Results of the present study supported the hypothesis this study that organic matter and nutrient content were major factors that contributed to oxygen demand within the study site. However, it is also noted that there was a poor correlation between sand percentages and SOD values.
format Final Year Project Report
author Ng, Chiat Siew
author_facet Ng, Chiat Siew
author_sort Ng, Chiat Siew
title Oxygen demand of different of sediment at Semariang Batu
title_short Oxygen demand of different of sediment at Semariang Batu
title_full Oxygen demand of different of sediment at Semariang Batu
title_fullStr Oxygen demand of different of sediment at Semariang Batu
title_full_unstemmed Oxygen demand of different of sediment at Semariang Batu
title_sort oxygen demand of different of sediment at semariang batu
publisher Universiti Malaysia Sarawak, (UNIMAS)
publishDate 2009
url http://ir.unimas.my/id/eprint/8717/8/Oxygen%20Demand%20of%20Different%20Types%20of%20Sediment%20at%20Semariang%20Batu.pdf
http://ir.unimas.my/id/eprint/8717/
_version_ 1789430272395051008
score 13.211869

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