SPECIATION OF HEAVY METALS Cd, Cr, Cu AND Pb IN SEDIMENT WADUK SAGULING WEST JAVA PROVINCE
Saguling Reservoir was one of the Citarum watershed, West Java Province. The main function of this reservoir was as a hydroelectric power plant. The activities of industry, agriculture, mining, aquaculture, and tourism around Saguling Reservoir, result in increased pollution in the reservoir, esp...
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| Format: | Theses |
| Language: | Indonesia |
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| Online Access: | https://digilib.itb.ac.id/gdl/view/44455 |
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| Institution: | Institut Teknologi Bandung |
| Language: | Indonesia |
| Summary: | Saguling Reservoir was one of the Citarum watershed, West Java Province. The
main function of this reservoir was as a hydroelectric power plant. The activities of
industry, agriculture, mining, aquaculture, and tourism around Saguling Reservoir,
result in increased pollution in the reservoir, especially by heavy metals. The
purpose of this study was to determine the distribution and characteristics of heavy
metals in sediment of Saguling Reservoir which consisting of fractions F1
(exchangeable and carbonate fraction), F2 (Fe-Mn oxides fraction), F3 (organic
fraction) and F4 (residual fraction). Sampling was conducted at 12 monitoring
points based on the location of the monitoring by PT Indonesia Power UP Saguling
(2014). Measurement of concentrations of Cd Cr, Cu, and Pb were performed using
an Inductively Coupled Plasma Optical Emission Spectrometry (ICP-OES). The
results of analysis by ICP-OES is used as a reference to predict the level of metal
contamination (Cd, Cr, Cu, and Pb) using Risk Assessment Code (RAC) and SQGs
(Sediment Quality Guidelines). The results showed the highest total concentrations
of Cd at station 1 A (Citarum Nanjung) was 11.47 mg/kg. The concentration of Cr
total was also the highest at station 1 A (151.36 mg/kg), while the highest total
concentration of Cu at station 2 (Cihaur Kampung Cipeundey) was 172.92 mg/kg,
and the concentration of Pb highest total at station 1 A was 53.33 mg/kg. RAC based
on a percentage of the value of F1 (% F1) showed that the risk level category of
each metal in each station is different. The Cd classified as medium risk at the
station 1A, while the 11 other stations as low risk at the station 1 B, 2, 3, 4, 5, 6, 7,
8, 9, 10 A, and 10 B; Cr classified as low risk at the station 1 A, 1 B, 2, 4, 5, 6, 7,
10 A and 10 B, while no risk at station 3, 8 and 9; category Cu classified as low
risk at all stations; and Pb classified as medium risk at station 8, low risk at station
1 A, 1 B, 3, 4, 5, 7, 9, 10 A and 10 B, and is not at risk at stations 2 and 6. Based on
the value SQGs, heavy metals Cd, Cr, and Cu have high toxicity levels at all stations
and therefore contributes substantially to the aquatic biota, while the toxicity of Pb
is still relatively low at 11 stations and relatively high in station 1 A. |
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