bottom ash Articles

  • Water impounded bottom ash collection systems

    Ash is a by-product of the combustion process in power generating stations that burn coal as a primary fuel. Combustion takes place in a boiler that is actually a large open furnace. The walls of the furnace are lined with pipes that carry water to produce steam that powers a turbine generator. Ash is present in two forms: 1) Fly-ash, a lighter material that exits the boiler in the flue-gas ...


    By Entech Design, Inc.

  • Artificial carbonation for controlling the mobility of critical elements in bottom ash

    Abstract  In municipal solid waste incineration (MSWI), bottom ash, generated at a stoker grate type incinerator, the critical elements were identified in terms of EU regulation. The stabilizing effect of moderate carbonation (pH 8.28 ± 0.03) on critical contaminants was studied through availability and diffusion leaching protocols. Data from the performed tests were evaluated with the goal ...


  • Artificial carbonation for controlling the mobility of critical elements in bottom ash

    In municipal solid waste incineration (MSWI), bottom ash, generated at a stoker grate type incinerator, the critical elements were identified in terms of EU regulation. The stabilizing effect of moderate carbonation (pH 8.28 ± 0.03) on critical contaminants was studied through availability and diffusion leaching protocols. Data from the performed tests were evaluated with the goal of reusing MSWI ...


    By Springer

  • Fly Ash & the Lightweight Aggregate Market

    In 2015, the global fly ash market was estimated to be valued at 40 billion USD. A recent industry analysis by Research Nester anticipates the market will reach an estimated 70 billion USD by the end of 2023 – a 7.1% CAGR owing to increasing ...


    By FEECO International, Inc.

  • Influence of Decreasing Heating Value on MSW Combustion

    Test runs in the TAMARA test facility to investigate the influence of decreasing lower heating value on the combustion of waste showed that the combustion quality could easily be kept constant at heating values exceeding 5 MJ/kg. The burnout of grate ashes and flue gas had slightly fallen off at lower heating values whereas the level of PCDD/F in the raw gas stayed constant in all tests. The ...


    By AquaConsoil

  • Review of coal as a promising source of lithium

    Coals are a major source of pollution in certain parts of the world due to mining, coal combustion, and disposal of fly ash. The recovery of valuable rare metals from coals or coal–processing byproducts is a promising way to utilise these traditional resources economically, efficiently and in an environmentally friendly way. Lithium, a highly interesting metal, has been found dispersed and even ...


    By Inderscience Publishers

  • Coal-fired power on the way out?

    The past two years have witnessed the emergence of a powerful movement opposing the construction of new coal-fired power plants in the United States. Initially led by environmental groups, both national and local, it has since been joined by prominent national political leaders and many state governors. The principal reason for opposing coal plants is that they are changing the earth’s climate. ...


    By Earth Policy Institute

  • The Beltran biomass cogeneration system

    An effective, economical solution for harvesting safe, renewable domestic energy, mitigating wastes and achieving environmental goals. Background The Beltran Biomass Cogeneration System (BBCS) is an integrated, three-stage process that uses proprietary gasification technology to convert biomass and other organic wastes into versatile, cleanburning synthesis gas. The purified ...


    By Beltran Technologies, Inc.

  • Cleaning Up Gasification Syngas

    Documento sin título ...


    By Merichem Company

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