• Reservoirs play a strategic role in the context of sustainable energy supply. Unfortunately, the
    majority of the reservoirs are facing water-quality degradation due to complex pollutants originating
    from activities both in the catchment and inside the reservoir. This research was aimed at assessing
    the extent of the water degradation, in terms of corrosivity level, and at examining its impacts
    on hydropower capacity and operation. Water quality data (total dissolved solids, pH, calcium,
    bicarbonate, and temperature) were obtained from 20 sampling stations in the Cirata Reservoir
    from 2007 to 2016. The results show that the river water is already corrosive (Langelier Saturation
    Index, LSI = − 0.21 to − 1.08), and, the corrosiveness becoming greater when entering the reservoir
    (LSI = − 0.52 to − 1.49). The water corrosivity has caused damage to the hydro-mechanical equipment
    and lowering production capacity. The external environment of the catchment hosts complex human
    activities, such as agriculture, land conversion, urban and industrial discharge, which have all played a
    major role in the water corrosiveness. Meanwhile, the internal environment, such as floating net cage
    aquaculture, has intensified the problem. As the water corrosiveness has increased, the maintenance
    of the hydro-mechanical facilities has also increased. Strategies must be applied as current conditions
    are certainly a threat to the sustainability of the hydropower operation and, hence, the energy supply.

  • Department of Biology, Faculty of Mathematics and Natural Science, Universitas Padjadjaran, Jl. Raya Bandung-Sumedang Km. 21 Jatinangor, Sumedang, West Java Province, 45363, Indonesia



    Copyright: © The Author(s) 2020

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