Gas Desulfurization Articles

  • Industrial flue gas desulfurization waste may offer an opportunity to facilitate SANI® application for significant sludge minimization in freshwater wastewater treatment

    This paper reports an exploratory study on the use of a sulfite-rich industrial effluent to enable the integration of a sulfite–sulfide–sulfate cycle to the conventional carbon and nitrogen cycles in wastewater treatment to achieve sludge minimization through the non-sludge-producing Sulfate reduction, Autotrophic denitrification and Nitrification Integrated (SANI) ...


    By IWA Publishing

  • The MBR for biological desulfurization of biogas the BioReactor with the DMT BioSulfurex HCP process

    Abstract DMT has developed a process for biological desulfurization at low pH for the treatment of biogas. This process (BioSulfurex®) is pH, temperature, nutrient and oxygen controlled. During an intensive research period the elimination capacity (EC) and removal efficiencies (RE) at different process conditions were determined. The effect of variations in H2S loading, cleaning procedures ...

  • Pilot-scale demonstration of the hybrid zero-valent iron process for treating flue-gas-desulfurization wastewater: Part II

    The hybrid zero-valent-iron (hZVI) process is a novel chemical treatment process that has shown promise for removing heavy metals and nutrients from industrial wastewaters. In this study, a pilot-scale demonstration was conducted to continuously treat 3.8–7.6 L/min (1–2 gpm) of the flue-gas-desulfurization (FGD) wastewater at a coal-fired power plant for 5 months. In this paper, a ...


    By IWA Publishing

  • Pilot-scale demonstration of the hybrid zero-valent iron process for treating flue-gas-desulfurization wastewater: Part I

    The hybrid zero-valent-iron (hZVI) process is a novel chemical treatment process that has shown great potential in previous laboratory and field bench-top scale tests for removing selenium, mercury and nutrients from various industrial wastewaters. In this study, a pilot-scale demonstration was conducted to continuously treat 3.8–7.6 L/min (1–2 gpm) of the flue-gas-desulfurization ...


    By IWA Publishing

  • Fact sheet: EPA mercury rules and power reliability

    New rules from the U.S. Environmental Protection Agency to reduce mercury and other toxic air emissions will affect dozens of antiquated power plants currently operating without pollution controls. These rules have stirred debate in some circles as to whether retrofitting or retiring outdated plants will cause shortfalls in electricity capacity. How will EPA mercury rules influence the ...

  • Coal Fired Boiler two-stage flue gas desulfurization (FGD)

    A major pulp and paper mill located in New England, USA was faced with a control order to reduce SO2 and a schedule challenge to meet the order deadline and steam requirements. In addition, the customer was looking for ways to save reagent cost. Macrotek was selected to design and build two wet FGD systems for two 100,000 lbs/hr medium sulfur coal fired boilers. The design included a two-stage ...


    By Macrotek Inc.

  • Effect of pH on nitrate and selenate reduction in flue gas desulfurization brine using the H2-based membrane biofilm reactor (MBfR)

    Increased tightening of air regulations is leading more electric utilities to install flue gas desulfurization (FGD) systems. These systems produce brine containing high concentrations of nitrate, nitrite, and selenate which must be removed before discharge. The H2-based membrane biofilm reactor (MBfR) was shown to consistently remove nitrate, nitrite, and selenate at high efficiencies. The ...


    By IWA Publishing

  • Potential agricultural uses of flue gas desulfurization gypsum in the northern great plains

    Flue gas desulfurization gypsum (FGDG) is a byproduct from the combustion of coal for electrical energy production. Currently, FGDG is being produced by 15 electrical generating stations in Alabama, Florida, Indiana, Iowa, Kentucky, Ohio, North Carolina, South Carolina, Tennessee, Texas, and Wisconsin. Much of this byproduct is used in the manufacturing of wallboard. The National Network for Use ...

  • Economic evaluation for air pollution control technologies selection in power plants processes

    Air quality legislation is entering a transformation phase, shifting the concept of atmospheric emission control towards pollution prevention and emission minimization through a more integrated approach. This transformation, along with public pressure and increased foreign trade, is providing industries with incentives to consider their effect on the environment and to take action where required. ...

  • A multi-criteria decision approach for choosing and ranking SO2 emission reduction measures for a network of power stations

    During recent years, it has become evident that power plants are a major source of pollution that causes changes in the chemistry and physics of the environment. In this paper, the Analytic Hierarchy Process (AHP) was employed to develop a strategy for reducing sulphur dioxide emissions from a network of power plants in Kuwait by at least two-thirds. Along with NOx, sulphur dioxide is known to be ...


    By Inderscience Publishers

  • Wet Flue Gas Desulfurization System

    Installing the optimum wet flue gas desulfurization technology, B&V Energy is bringing superior multi-pollutant removal technology to the North American utility marketplace. To help make a positive impact on the global environment and to comply with the Clean Air Interstate and Clean Air Mercury Rules, Dayton Power & Light needed to remain in compliance as more stringent air quality ...


    By Black & Veatch Corporation

  • Biogas desulphurisation using the DMT multiple stage Sulfurex® process

    Global rising energy costs are focusing efforts by many industrial and municipal entities to find new sources of energy. Generating electricity from Biogas is of course nothing new however the cost of cleaning up certain Biogas streams with excessive levels of Hydrogen Sulphide (H2S) has previously proven to be financially unsustainable. Rising energy costs combined with improvements and cost ...

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