Water quality and sediment characteristics of Batang Ai downstream of the dam compared to the reservoir

Shahira, Binti Ibrahim (2015) Water quality and sediment characteristics of Batang Ai downstream of the dam compared to the reservoir. [Final Year Project Report] (Unpublished)

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Abstract

Construction of dam IS Important in controlling massive water flow from upstream to downstream but it also may cause ecological change to its surroundings. Hence, this study is about water quality and sediment characteristics of Batang Ai downstream of the dam compared to the reservoir. The study was conducted on 9 - 11110/2014 and 29/1 - 112/2015. When going further away from reservoir to the downstream, there was an increase in conductivity and turbidity but decrease in temperature, pH, dissolved oxygen, depth and transparency. The mean range for ex situ parameters were total suspended solids (1.3 57.7 mg/L), chlorophyll-a (1.0 - 4.6 mg/m'), biochemical oxygen demand (1.92 - 4.12 mgIL), chemical oxygen demand (45.3 - 88 02/L), total sulphide (0 - 0.07 mg/L), nitrite-nitrogen (0 - 0.012 mg/L), nitrate-nitrogen (0 - 0.18 mgfL), ammoniacal-nitrogen (0.09 - 2.69 mg/L), total nitrogen (2.81 - 8.99 mg/L), phosphate-phosphorus (0.02 - 0.12 mg/L) and total phosphorus (0.15 - 2.39 mgIL). Biochemical oxygen demand, total suspended solids, ammoniacal-nitrogen and chemical oxygen demand had exceeded Class II of Water Quality Index. For sediment characteristics, particle size analysis, moisture content, total organic carbon, organic matter, total phosphorus and total nitrogen had been analysed. Most of the higher reading came from station near residential area and plantation site.

Item Type: Final Year Project Report
Additional Information: Project report (B.Sc.) - Universiti Malaysia Sarawak, 2015.
Uncontrolled Keywords: dam, reservoir, downstream, water quality, unimas, university, universiti, Borneo, Malaysia, Sarawak, Kuching, Samarahan, ipta, education, undergraduate, , research, Universiti Malaysia Sarawak.
Subjects: G Geography. Anthropology. Recreation > GE Environmental Sciences
Q Science > Q Science (General)
Q Science > QD Chemistry
Divisions: Academic Faculties, Institutes and Centres > Faculty of Resource Science and Technology
Depositing User: Gani
Date Deposited: 08 Aug 2019 06:37
Last Modified: 08 Aug 2019 06:37
URI: http://ir.unimas.my/id/eprint/26368

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