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Enhancing acid water treatment in coal mine settling ponds using sodium hydroxide (NaOH): A case study in Murung Raya, Central Kalimantan

Author

Listed:
  • Eddy Susanto
  • Eddy Setiadi Soedjono
  • Harmin Sulistiyaning Titah

Abstract

This study aims to improve the treatment of acid water in settling ponds produced by coal mining activities located in Murung Raya, Central Kalimantan, Indonesia, using sodium hydroxide (NaOH) and combinations of NaOH with other chemicals to neutralize pH and metals, thereby reducing environmental impact. Complementing this, there will be regular monitoring of water quality and pH adjustments, along with projects to engage the local community in public awareness campaigns about ecological conservation. We seek to establish a sustainable development framework that prioritizes environmental preservation and community involvement, guiding other regions worldwide. Notably, achieving a pH of 6–9 in the settling pond using NaOH, with iron (Fe) levels below 7 and manganese (Mn) levels below 4, is essential to maintain environmental balance.

Suggested Citation

  • Eddy Susanto & Eddy Setiadi Soedjono & Harmin Sulistiyaning Titah, 2025. "Enhancing acid water treatment in coal mine settling ponds using sodium hydroxide (NaOH): A case study in Murung Raya, Central Kalimantan," International Journal of Innovative Research and Scientific Studies, Innovative Research Publishing, vol. 8(4), pages 1563-1569.
    • Handle: RePEc:aac:ijirss:v:8:y:2025:i:4:p:1563-1569:id:8132
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