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  2. Flue-gas desulfurization - Wikipedia

    en.wikipedia.org/wiki/Flue-gas_desulfurization

    The capital, operating and maintenance costs per short ton of SO 2 removed (in 2001 US dollars) are: For wet scrubbers larger than 400 MW, the cost is $200 to $500 per ton; For wet scrubbers smaller than 400 MW, the cost is $500 to $5,000 per ton; For spray dry scrubbers larger than 200 MW, the cost is $150 to $300 per ton

  3. Chimney felling - Wikipedia

    en.wikipedia.org/wiki/Chimney_felling

    July 2024) (Learn how and when to remove this message) Chimney felling is the practice of demolishing or "felling" a chimney stack. Modern health and safety rules now largely prohibit the practice in industrialized areas; the current technique is to pack explosives around the base of the chimney.

  4. Smog tower - Wikipedia

    en.wikipedia.org/wiki/Smog_tower

    It was funded by the provincial government and costs US$2 million. The running cost is $30000 per year. [9] It is under testing by researchers at the Institute of Earth Environment of the Chinese Academy of Sciences. [10] The experimental demonstration urban updraft tower is cleaning the air in central China with little external energy input.

  5. Flue-gas stack - Wikipedia

    en.wikipedia.org/wiki/Flue-gas_stack

    A flue gas stack at GRES-2 Power Station in Ekibastuz, Kazakhstan, the tallest of its kind in the world (420 meters or 1,380 feet) [1]. A flue-gas stack, also known as a smoke stack, chimney stack or simply as a stack, is a type of chimney, a vertical pipe, channel or similar structure through which flue gases are exhausted to the outside air.

  6. Building implosion - Wikipedia

    en.wikipedia.org/wiki/Building_implosion

    AfE-Turm building demolition slow motion video Implosion of the Athlone Power Station cooling towers Blasting of a highway bridge in Aachen, Germany. In the controlled demolition industry, building implosion is the strategic placing of explosive material and timing of its detonation so that a structure collapses on itself in a matter of seconds, minimizing the physical damage to its immediate ...

  7. Chimney - Wikipedia

    en.wikipedia.org/wiki/Chimney

    The term smokestack (colloquially, stack) is also used when referring to locomotive chimneys or ship chimneys, and the term funnel can also be used. [1] [2] The height of a chimney influences its ability to transfer flue gases to the external environment via stack effect. Additionally, the dispersion of pollutants at higher altitudes can reduce ...

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