Recent advances in flue gas desulfurization gypsum processes and applications - A review

JOURNAL OF ENVIRONMENTAL MANAGEMENT

卷:251

Review

Koralegedara, Nadeesha H.¹  Pinto, Patricio X.²  Dionysiou, Dionysios D.³  Al-Abed, Souhail R.⁴ 

[1] Univ Peradeniya, Fac Sci, Dept Geol, Peradeniya 20000, Sri Lanka

[2] Pegasus Tech Serv Inc, 46 E Hollister St, Cincinnati, OH 45219 USA

[3] Univ Cincinnati, DBCEE, 705 Engn Res Ctr, Cincinnati, OH 45221 USA

[4] US EPA, Ctr Environm Solut & Emergency Response, 26 W Martin Luther King Dr, Cincinnati, OH 45268 USA

关键词: Beneficial use;    Coal combustion residues;    FGDG;    Materials management;    Sustainability;    Materials reuse;   

DOI  :  10.1016/j.jenvman.2019.109572

来源: Elsevier

【 摘 要 】

Flue gas desulfurization gypsum (FGDG) is an industrial by-product generated during the flue gas desulfurization process in coal-fired power plants. Due to its abundance, chemical and physical properties, FGDG has been used in several beneficial applications. However, during the past decade, the rate of beneficially used FGDG has gradually decreased, while its production has drastically increased. The presence of hazardous elements such as arsenic, mercury, cadmium, lead, and selenium in FGDG has reduced its beneficial value. Nevertheless, due to the recent developments in flue gas desulfurization processes, the modern FGDG contains lesser amounts of these elements, thus increasing its beneficial value and appeal to be included in other products. Hence, there are novel and traditional FGDG applications in different reuse scenarios investigated recently that have been deemed to pose minimal environmental concern - these need to be better understood. This review summarizes beneficial FGDG applications that have been deemed to pose minimal environmental concern, emphasizing their principles, research gaps, and potential developments, with the aim of increasing the reuse rate of FGDG.

【 授权许可】

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