WATER QUALITY MODELLING AND POLLUTANT LOAD CARRYING CAPACITY ANALYSIS OF AKELAMO RIVER, NORTH MALUKU
Rivers are body of water that affect many environmental components and ecosystems. The quality of river water also affects the capacity of the pollutant load released by the mine. River quality is strongly influenced by watershed land use. The Akelamo River has contributions from a catchment area...
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| Format: | Final Project |
| Language: | Indonesia |
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| Online Access: | https://digilib.itb.ac.id/gdl/view/76076 |
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| Institution: | Institut Teknologi Bandung |
| Language: | Indonesia |
| Summary: | Rivers are body of water that affect many environmental components and ecosystems. The
quality of river water also affects the capacity of the pollutant load released by the mine. River
quality is strongly influenced by watershed land use. The Akelamo River has contributions from
a catchment area that contains various mining activities and various uses of forest areas.
Water from nickel mining activities is characterized by low pH and high TSS, as well as the
presence of dissolved iron (Fe) and dissolved nickel (Ni). The Akelamo River is located in a
tropical region with high rainfall. This causes the potential for runoff water from mining
activities that must be managed to have a large volume. The Akelamo pollution index
calculation is 0.421. When referring to the second class quality standard of Government
Regulation No. 22 of 2021 concerning the Implementation of Environmental Protection and
Management, the Akelamo River is categorized as a river with good or unpolluted status. The
Akelamo River area covered in this study is 9.2 km from upstream to downstream. The objective
is to conduct river segmentation, spatial analysis, modeling, and analyze the capability of the
river to receive pollutant loads. From the analysis, the amount of pollutant load that can be
discharged into the Akelamo River without causing the river to become polluted and determine
the environmental management of the watershed that can be carried out. Simulations were
conducted using QUAL2Kw software to simulate pH and TSS parameters with various
scenarios. Fe and Ni parameters were simulated using mass balance calculations. For the
results of the calculation of pollutant load capacity, Akelamo River has a pollutant load
capacity value for TSS, Fe, and Ni parameters of 54300.97 kg/day, 192 kg/day, and 30.87 kg/day, respectively.
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