Modeling the effect of dam construction and operation towards downstream water quality of Sg. Tawau and Batang Baleh

Amongst all the natural resources necessary to support human civilization, water plays the most critical role. Planning and development of water resources to meet a country's need for water supply, flood control, hydroelectric power, irrigation, and navigation need to be evaluated with referenc...

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Main Authors:	Zainudin, Zaki, Jamal, Parveen, Akbar, Iqrah
Format:	Article
Language:	English
Published:	Euresian Publication 2012
Subjects:	TC Hydraulic engineering. Ocean engineering TC401 River, lake, and water-supply engineering (General) TD201 Water supply for domestic and industrial purposes
Online Access:	http://irep.iium.edu.my/26223/ http://irep.iium.edu.my/26223/ http://irep.iium.edu.my/26223/1/WJAEC-1-2-3.pdf

id	iium-26223
recordtype	eprints
spelling	iium-262232014-05-23T08:04:02Z http://irep.iium.edu.my/26223/ Modeling the effect of dam construction and operation towards downstream water quality of Sg. Tawau and Batang Baleh Zainudin, Zaki Jamal, Parveen Akbar, Iqrah TC Hydraulic engineering. Ocean engineering TC401 River, lake, and water-supply engineering (General) TD201 Water supply for domestic and industrial purposes Amongst all the natural resources necessary to support human civilization, water plays the most critical role. Planning and development of water resources to meet a country's need for water supply, flood control, hydroelectric power, irrigation, and navigation need to be evaluated with reference to the environmental needs and regulations. One such method is construction of dams and reservoirs which have enabled efficient usage and storage of water over the years. The intent of this study is to apply a water quality model (QUAL2E developed by USEPA)to critically examine the plausible environmental impacts of two proposed dams in Malaysia around the areas of Sg. Tawau and the Batang Baleh. Numerous operational scenarios, with and without the proposed dams were considered. Primary concerns about the effects of dam operations on water quality were physico-chemical water quality constituents such as BOD, dissolved oxygen and TSS. Results obtained depicted that the construction process would result in a slight degradation of the water quality for the Tawau dam elevating the BOD and TSS levels; whereas for the Batang Baleh dam, none such adverse effects were identified, however with frequent removal of organics and sediment build up behind the dam the ill effects of dam construction on the both the rivers can be avoided. The proposed discharge volume (compensational flow) of 280 m3/s should be sufficient in sustaining the ambient water quality during the operational phase of the Tawau dam while as for Batang Baleh the flow should be maintained at 2.0 m3/s. The results also depicted that for both Tawau and Batang Baleh dams, intermittent flow release during the reservoir storage process, particularly during the dry season should be done, to maintain water quality levels at the downstream reaches. Euresian Publication 2012 Article PeerReviewed application/pdf en http://irep.iium.edu.my/26223/1/WJAEC-1-2-3.pdf Zainudin, Zaki and Jamal, Parveen and Akbar, Iqrah (2012) Modeling the effect of dam construction and operation towards downstream water quality of Sg. Tawau and Batang Baleh. World Journal of Applied Environmental Chemistry, 1 (2). pp. 57-66. ISSN 2277-8055 http://www.environmentaljournals.org
repository_type	Digital Repository
institution_category	Local University
institution	International Islamic University Malaysia
building	IIUM Repository
collection	Online Access
language	English
topic	TC Hydraulic engineering. Ocean engineering TC401 River, lake, and water-supply engineering (General) TD201 Water supply for domestic and industrial purposes
spellingShingle	TC Hydraulic engineering. Ocean engineering TC401 River, lake, and water-supply engineering (General) TD201 Water supply for domestic and industrial purposes Zainudin, Zaki Jamal, Parveen Akbar, Iqrah Modeling the effect of dam construction and operation towards downstream water quality of Sg. Tawau and Batang Baleh
description	Amongst all the natural resources necessary to support human civilization, water plays the most critical role. Planning and development of water resources to meet a country's need for water supply, flood control, hydroelectric power, irrigation, and navigation need to be evaluated with reference to the environmental needs and regulations. One such method is construction of dams and reservoirs which have enabled efficient usage and storage of water over the years. The intent of this study is to apply a water quality model (QUAL2E developed by USEPA)to critically examine the plausible environmental impacts of two proposed dams in Malaysia around the areas of Sg. Tawau and the Batang Baleh. Numerous operational scenarios, with and without the proposed dams were considered. Primary concerns about the effects of dam operations on water quality were physico-chemical water quality constituents such as BOD, dissolved oxygen and TSS. Results obtained depicted that the construction process would result in a slight degradation of the water quality for the Tawau dam elevating the BOD and TSS levels; whereas for the Batang Baleh dam, none such adverse effects were identified, however with frequent removal of organics and sediment build up behind the dam the ill effects of dam construction on the both the rivers can be avoided. The proposed discharge volume (compensational flow) of 280 m3/s should be sufficient in sustaining the ambient water quality during the operational phase of the Tawau dam while as for Batang Baleh the flow should be maintained at 2.0 m3/s. The results also depicted that for both Tawau and Batang Baleh dams, intermittent flow release during the reservoir storage process, particularly during the dry season should be done, to maintain water quality levels at the downstream reaches.
format	Article
author	Zainudin, Zaki Jamal, Parveen Akbar, Iqrah
author_facet	Zainudin, Zaki Jamal, Parveen Akbar, Iqrah
author_sort	Zainudin, Zaki
title	Modeling the effect of dam construction and operation towards downstream water quality of Sg. Tawau and Batang Baleh
title_short	Modeling the effect of dam construction and operation towards downstream water quality of Sg. Tawau and Batang Baleh
title_full	Modeling the effect of dam construction and operation towards downstream water quality of Sg. Tawau and Batang Baleh
title_fullStr	Modeling the effect of dam construction and operation towards downstream water quality of Sg. Tawau and Batang Baleh
title_full_unstemmed	Modeling the effect of dam construction and operation towards downstream water quality of Sg. Tawau and Batang Baleh
title_sort	modeling the effect of dam construction and operation towards downstream water quality of sg. tawau and batang baleh
publisher	Euresian Publication
publishDate	2012
url	http://irep.iium.edu.my/26223/ http://irep.iium.edu.my/26223/ http://irep.iium.edu.my/26223/1/WJAEC-1-2-3.pdf
first_indexed	2023-09-18T20:39:04Z
last_indexed	2023-09-18T20:39:04Z
_version_	1777409243051196416

Modeling the effect of dam construction and operation towards downstream water quality of Sg. Tawau and Batang Baleh

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