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  2. Ombilin Coal Mine - Wikipedia

    en.wikipedia.org/wiki/Ombilin_Coal_Mine

    The Ombilin Coal Mine (formerly PT Tambang Batubara Ombilin (TBO)) is a coal mine near Sawahlunto, West Sumatra, Indonesia. It is located in a narrow valley along the Bukit Barisan mountains, among the Polan, Pari, and Mato hills, approximately 70 kilometres (43 mi) northeast of Padang .

  3. Acid mine drainage - Wikipedia

    en.wikipedia.org/wiki/Acid_mine_drainage

    The nearly full genomic constructs allows new understanding of the community and able to reconstruct their metabolic pathways. [31] Our knowledge of acidophiles in acid mine drainage remains rudimentary: we know of many more species associated with ARD than we can establish roles and functions.

  4. Ventilation air methane thermal oxidizer - Wikipedia

    en.wikipedia.org/wiki/Ventilation_air_methane...

    Ventilation Air Methane Thermal Oxidizers can be designed with hot gas bypass systems, re-circulation heat exchangers that convert heat into energy, and oxygen monitoring to reduce any possible carbon monoxide and/or nitrous oxide production. Methane streams allow the VAMTOX to operate at reduced or zero fuel usage, which makes these systems ...

  5. Coal preparation plant - Wikipedia

    en.wikipedia.org/wiki/Coal_preparation_plant

    Coal stockpile Coal stacker Coal reclaimer. Coal needs to be stored at various stages of the preparation process, and conveyed around the CPP facilities. Coal handling is part of the larger field of bulk material handling, and is a complex and vital part of the CPP.

  6. Berau Coal Energy - Wikipedia

    en.wikipedia.org/wiki/Berau_Coal_Energy

    Berau Coal became part of Vallar plc, British financier Nathaniel Rothschild's £700m cash shell, in July 2010. [7]In 2013, it was variously reported that $173 million had allegedly gone "missing" or that "mysteriously vanished" or that a withdrawal was "unauthorised" from Berau Coal under Rosan Roeslani's leadership.

  7. Batu Hijau mine - Wikipedia

    en.wikipedia.org/wiki/Batu_Hijau_mine

    The Batu Hijau mine is an open pit copper-gold mine operated by PT. Amman Mineral Nusa Tenggara (previously known as PT Newmont Nusa Tenggara).The mine is the second largest copper-gold mine in Indonesia behind the Grasberg mine of PT.

  8. Wellman–Lord process - Wikipedia

    en.wikipedia.org/wiki/Wellman–Lord_process

    The Wellman–Lord process is a regenerable process to remove sulfur dioxide from flue gas (flue-gas desulfurization) without creating a throwaway sludge product.. In this process, sulfur dioxide from flue gas is absorbed in a sodium sulfite solution in water forming sodium bisulfite; other components of flue gas are not absorbed.

  9. Hydrazoic acid - Wikipedia

    en.wikipedia.org/wiki/Hydrazoic_acid

    Hydrazoic acid, also known as hydrogen azide, azic acid or azoimide, [2] is a compound with the chemical formula HN 3. [3] It is a colorless, volatile, and explosive liquid at room temperature and pressure.