WATER QUALITY ANALYSIS IN DOWNSTREAM RIVER USING QUAL2KW APPLICATION
Citarum River is one of the rivers that receives a large amount of pollution from various sectors. On the other hand, this river serves as a raw water source for water supply companies (PDAM), irrigation, industries, and households. Main factors causing pollution in the Citarum River involve popu...
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| Format: | Theses |
| Language: | Indonesia |
| Online Access: | https://digilib.itb.ac.id/gdl/view/80376 |
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| Institution: | Institut Teknologi Bandung |
| Language: | Indonesia |
| Summary: | Citarum River is one of the rivers that receives a large amount of pollution from
various sectors. On the other hand, this river serves as a raw water source for water
supply companies (PDAM), irrigation, industries, and households. Main factors
causing pollution in the Citarum River involve population growth and changes in
land use. So far, the upstream area has often been the focus of attention due to
higher pollution levels, while the downstream area accumulates contaminants from
the upstream to the middle, which then accumulate in the downstream area of the
river. Therefore, effective water quality management is needed in the downstream
area of the river. The focus of this research is to analyze water quality by
considering parameters such as Biological Oxygen Demand (BOD) and Chemical
Oxygen Demand (COD) using the QUAL2Kw application. Scenario simulations are
conducted to identify the most optimal scenarios for addressing pollution loads.
Based on the calculation of the Total Maximum Daily Load (TMDL), the
downstream of the Citarum River is already accommodating pollution loads beyond
its capacity, amounting to 31,139.4 tons/day for BOD and 745,607.9 tons/day for
COD. Simulation scenarios are used as a strategy to improve water quality. Based
on the results of the simulation scenarios, the most effective approach to water
quality standards (class 2) is to reduce point source pollutant loads by 80% and
non point source pollutant loads by 85%. This can be achieved through the
implementation of communal wastewater treatment plants for domestic waste and
improvements in industrial wastewater treatment systems. According to the
calculation of the Water Quality Index (WQI) using the Pollution Index (PI)
method, the downstream status of the Citarum River is classified as slightly
polluted. This status reflects the water quality conditions at the time of sampling |
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