Flue Gas Desulfurization: Physicochemical and Biotechnological Approaches

Pandey, R.A.; Biswas, Rima; Chakrabarti, Tapan; Devotta, S.

doi:10.1080/10643380500326374

Cited by 97 publications

(47 citation statements)

References 25 publications

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“…Undoubtedly, inordinate increase of SO 2 emission has become the focus of the world, and especially industrial countries [1]. The majority of industrial SO 2 emissions, which come from the burning of fossil fuels, are mainly led to air pollution, acid rain and urban smog [2].…”

Section: Introductionmentioning

confidence: 99%

SO2 removal from simulated flue gas using various aqueous solutions: Absorption equilibria and operational data in a packed column

Rahmani

Mowla

Karimi

et al. 2015

Separation and Purification Technology

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Section: Introductionmentioning

confidence: 99%

SO2 removal from simulated flue gas using various aqueous solutions: Absorption equilibria and operational data in a packed column

Rahmani

Mowla

Karimi

et al. 2015

Separation and Purification Technology

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“…Nowadays, flue gas desulfurization (FGD) is regarded as the most effective method in controlling and reducing the emission of SO 2 [2]. Many scholars have reviewed the FGD process such as wet FGD, dry and/or semi-dry FGD process [1,3,4]. Among them, wet limestone FGD technology shares over 90% of the installed desulfurization capacities worldwide.…”

Section: Introductionmentioning

confidence: 99%

“…The emission of SO 2 into the environment mainly derives from human activity by the burning of sulfur-containing fossil fuels [1]. Nowadays, flue gas desulfurization (FGD) is regarded as the most effective method in controlling and reducing the emission of SO 2 [2].…”

Section: Introductionmentioning

confidence: 99%

Solubility and thermodynamic properties of SO 2 in three low volatile urea derivatives

Jiang

Liu

Deng

2016

The Journal of Chemical Thermodynamics

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“…To limit acid rain, flue gas desulfurization (FGD) systems (often referred to as “scrubbers”) are routinely used to remove SO 2 from the exhaust of coal-fired electric power facilities (Pandy et al, 2005). For limestone-based wet FGD, coal combustion exhaust (flue gas) is diverted into absorber units and passed under a spray of crushed limestone-water slurry (Figure 1), whereupon, flue gas-associated SO 2 dissolves in the water as sulfite (Equation 1).…”

Section: Introductionmentioning

confidence: 99%

“…For instance, sulfate reducing, Fe(II)- and sulfide-oxidizing, and phototrophic bacterial activities may be exploited for removal of SO 2 (Dasu et al, 1993; Huber and Stetter, 1998; Pandy et al, 2005; Parshina et al, 2005, 2010), though these activities have not been considered in the context of existing FGD systems. Given the high operating temperatures associated with FGD units, thermophilic microorganisms would be best suited for biotechnological approaches to FGD and SO 2 removal (Huber and Stetter, 1998).…”

Section: Introductionmentioning

confidence: 99%

Microbial communities associated with wet flue gas desulfurization systems

Brown¹,

Brown²,

Senko³

2012

Front. Microbio.

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Flue gas desulfurization (FGD) systems are employed to remove SOx gasses that are produced by the combustion of coal for electric power generation, and consequently limit acid rain associated with these activities. Wet FGDs represent a physicochemically extreme environment due to the high operating temperatures and total dissolved solids (TDS) of fluids in the interior of the FGD units. Despite the potential importance of microbial activities in the performance and operation of FGD systems, the microbial communities associated with them have not been evaluated. Microbial communities associated with distinct process points of FGD systems at several coal-fired electricity generation facilities were evaluated using culture-dependent and -independent approaches. Due to the high solute concentrations and temperatures in the FGD absorber units, culturable halothermophilic/tolerant bacteria were more abundant in samples collected from within the absorber units than in samples collected from the makeup waters that are used to replenish fluids inside the absorber units. Evaluation of bacterial 16S rRNA genes recovered from scale deposits on the walls of absorber units revealed that the microbial communities associated with these deposits are primarily composed of thermophilic bacterial lineages. These findings suggest that unique microbial communities develop in FGD systems in response to physicochemical characteristics of the different process points within the systems. The activities of the thermophilic microbial communities that develop within scale deposits could play a role in the corrosion of steel structures in FGD systems.

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Flue Gas Desulfurization: Physicochemical and Biotechnological Approaches

Cited by 97 publications

References 25 publications

SO2 removal from simulated flue gas using various aqueous solutions: Absorption equilibria and operational data in a packed column

SO2 removal from simulated flue gas using various aqueous solutions: Absorption equilibria and operational data in a packed column

Solubility and thermodynamic properties of SO 2 in three low volatile urea derivatives

Microbial communities associated with wet flue gas desulfurization systems

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