Analysis of surface water contamination by heavy metal from Demak Laut Industrial Park
Surface water is the main source of available water which is getting polluted all over the world in many ways. Anthropogenic activities are the main causes of the pollution. The main sources of toxic heavy metals were possible wastewater and effluents from major industries, especially the chemica...
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| 主要作者: | |
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| 格式: | Thesis |
| 語言: | English |
| 出版: |
2014
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| 主題: | |
| 在線閱讀: | http://ir.unimas.my/id/eprint/10149/1/Elvy%20ft.pdf |
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| 總結: | Surface water is the main source of available water which is getting polluted all over the
world in many ways. Anthropogenic activities are the main causes of the pollution. The
main sources of toxic heavy metals were possible wastewater and effluents from major
industries, especially the chemical, polymer, metal, petrochemical gas and energy, and
wooden industries that generated the organic and inorganic pollutions which ultimately
contaminated the river water. Therefore, the main objective of this study is to monitor
the heavy metal contamination in Sungai Santubong, which is closed to industrial park in
Kuching, Sarawak named Demak Laut Industrial Park) This industrial park comprises of
industrial of wood processing, furniture manufacturing, food processing and some
machinery factory. After the construction of the barrage, this industrial park is not
connected to Sungai Sarawak anymore and its discharge is directed to Sungai
Santubong. River water was sampled at 10 cm and 1 m below the surface river water
using Depth Sampler. Collected water samples were transferred into 200 millilitre plastic
bottle and acidified to pH 2 using nitric acid. All water samples were kept in ice box at 4
·C and transported to the laboratory for analysis. Portable Data logging Colorimeter
DRl890 and Atomic Absorption Spectrophotometer (AAS) were used to analyse water
sample for detection of Cd, Pb and As. Reagents and quality assurance high purity
chemicals and reagents were purchased from Merck and Aldrich Chemical Company. Zn
and N i have significant concentration at 10 cm and 1 m depth above surface river water.
Whereas others heavy metals have no sigrrificant different at 10 cm and 1 m depth above
surface river water. The concentration of Cd at 10 cm and I m depth from surface river
water is 0.02 mg/L in level allowed based on Standard B Environmental Quality
Regulation (Discharge and Industrials Effluent) 1979 where the requirement based on
Standard B is 0.02 mg/L. Other heavy metals are below Standard B requirement. Only
Fe and Ni have significant different concentration at 10 cm and 1 m depth above surface
river water. |
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