STUDY OF HYDROGEOCHEMISTRY OF RIVER WATER, TRIBUTARY, AND SHALLOW GROUNDWATER IN UPSTREAM CITARUM RELATED TO DISSOLVE ION SOURCES
Citarum is one of the strategic rivers in Indonesia. The Citarum River Basin is the site of 3 large reservoirs that produce 5 billion kwh / year of electricity, equivalent to 16 million tons of fuel / year. Ironically, in recent years, Citarum has become the center of attention of various parties...
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| Format: | Final Project |
| Language: | Indonesia |
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| Online Access: | https://digilib.itb.ac.id/gdl/view/36882 |
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| Institution: | Institut Teknologi Bandung |
| Language: | Indonesia |
| Summary: | Citarum is one of the strategic rivers in Indonesia. The Citarum River Basin is the
site of 3 large reservoirs that produce 5 billion kwh / year of electricity, equivalent
to 16 million tons of fuel / year. Ironically, in recent years, Citarum has become the
center of attention of various parties. This is because the Citarum River was named
one of the dirtiest rivers in the world along with 10 other rivers in 2013. In terms
of restoring the Citarum River, not only the Citarum River water needs to know its
condition, but the condition of each tributary which empties into The Citarum River
and the condition of groundwater around the river also need to be known.
In this study, 43 samples were taken consisting of Citarum River, tributary and
shallow groundwater from upstream in Situ Cisanti to Saguling Reservoir. The
samples were analyzed by physical parameter test, Ion Chromatography test, and
ICP-MS test. This test is carried out to test certain chemical compositions in the
sample. From the results of this study it can be concluded that: 1) Generally there
is a change in hydrogeochemistry conditions in the Upper Citarum area which is
characterized by an increase in the number of dissolved ions in the Citarum River
flow from upstream to downstream. The concentration of dissolved ions passed the
threshold in almost all sampling locations, namely nitrite and fluoride. 2) The
largest source of dissolved ions in the Upper Citarum area, namely the Upper
Citarum (Cirasea) sub-watershed, the Cibolerang sub-watershed, and the Citepus
sub-watershed. 3) Interaction Shallow ground water and river water namely
ground water can pollute river water due to the process of advection and
dispersion. |
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