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Flue gas desulfurization gypsum (FGDG) is a coal combustion by-product that can be used in various beneficial ways. This review summarizes the recent …
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Introduction. Flue gas desulfurization (FGD) is the removal process of sulfur dioxide (SO2) from flue gases. Sulfur dioxide in gases is produced by the combustion of fossil fuels and many industrial processes such as gasoline refining as well as cement, paper, glass, steel, iron and copper production.
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FGD gypsum is a by-product of flue gas desulfurization (FGD) to remove sulfur dioxide emissions from coal-fired power plants. It has various applications in …
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Flue gas desulfurization (FGD) systems using lime or limestone as the chemical reagent are widely used throughout the world for SO 2 emissions control at coal-fired power plants. Ammonia-based ...
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Flue gas desulfurization gypsum (FGDG) and fly ash (FA) are by-products from coal-fired power plants. This study focuses on using them as the basic components …
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Semantic Scholar extracted view of "Characterization and leaching toxicities of mercury in flue gas desulfurization gypsum from coal-fired power plants in China" by Y. Hao et al. ... Coal-fired power plants produce flue gas desulfurization (FGD) gypsum as a byproduct of the sulfur removal process. This gypsum is contaminated with trace …
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Flue gas desulfurization gypsum (FGDG), the by-product of wet and semi-dry desulfurization processes, has been used as an alkali soil amendment in China. We evaluated the change in soil properties, agricultural production and the safety of FGDG as a soil amendment. As a result, soil pH and ESP (exchangeable sodium percentage) …
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Flue gas desulfurization gypsum (FGDG) is an industrial byproduct generated during the flue gas desulfurization process in coal-fired power plants. Flue gas desulfurization systems have been used to limit the release of sulfur dioxide from coal-fired power plants since the late 1960s, but in the past decade the production of FGDG …
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Keywords Flue gas desulfurization gypsum Desulfurization rate Calcium ferrite Sintered ore Green production 1 Introduction Sulfur dioxide is one of the main components of acid rain which has brought nearly 110 billion yuan economic losses to China every year [1, 2]. In 2017, the SO 2 emissions of
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Low sulfur content fuels with less than 0.5% S are available on the market, the cost of which is high. Flue gas desulfurization is an effective method in which the …
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Feng J, Jiang S. The discussion of desulfurization gypsum and its comprehensive utilization[J]. Nonmet Mine. 2000;23(6):18–20. MATH Google Scholar Hou K. Using flue gas desulfurization gypsum in power plant as cement retard replacing natural gypsum [J]. Cement. 2005;10:21–3. Google Scholar
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DOI: 10.1252/JCEJ.10WE282 Corpus ID: 94773775; Salt-Affected Soil Amelioration with Flue Gas Desulfurization By-Products and Waste Gypsum Board in Tianjin, China @article{Sakai2011SaltAffectedSA, title={Salt-Affected Soil Amelioration with Flue Gas Desulfurization By-Products and Waste Gypsum Board in Tianjin, China}, …
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(11.2 Mt) of the CCPs consisted of gypsum from flue gas desulfurization (FGD). The desulfurization process uses wet scrubbers and forced oxidation to reduce SO 2 emissions, and the gypsum produced is mineralogically identical to natural gypsum (CaSO 4?2H 2O), making FGD gypsum an ideal replacement for the mined gypsum used to …
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Three significant industrial gypsum by-products are flue-gas desulfurization gypsum (FGDG) [13], which is produced from coal combustion after the wet desulfurization of flue gas; phosphogypsum (PG ...
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Introduction. Flue gas desulfurized gypsum mainly comes from thermal power plants, smelters, and large-enterprise boilers, and contains industrial by-products produced through a wet desulfurization combustion process, where SO 2 gas and lime slurry react under strong oxidation conditions. The main component of this gypsum is …
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casting gypsum from various manufacturing processes, recycled wall board gypsum, and FGD gypsum from power plants. In 2012, synthetic gypsum accounted for approximately 54% of the total domestic gypsum supply. Flue gas desulfurization gypsum was by far the largest synthetic source produced and marketed,
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Abstract. Thermal Power Plant generates FGD gypsum as by-product during coal combustion. This study evaluates the characterization (spectroscopic and …
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Flue Gas Desulfurization. Application. Wet flue gas desulfurization or scrubber systems are an excellent way of reducing the sulfur dioxide emissions caused by coal combustion boilers. The flue gas discharged from the boiler is fed into the absorber. In the absorber, a mixture of water and pulverized limestone is sprayed on the flue gas.
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Mineralogically identical to natural gypsum, FGD gypsum, or synthetic gypsum, is produced from gas captured within emission control systems at coal fired electric utilities. An emission that would compromise air …
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Purpose For an alkaline–saline region in Northwest China, we examined the responses of soil microbial communities to flue gas desulfurization gypsum by-products (FGDB), a new ameliorant for alkaline–saline soils. In 2009 and 2010, we collected soils from 0–20 cm and 20–40 cm depths along an experimental FGDB gradient (0, 0.74, …
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The CAIR, at least in part, led to 91 GW of coal-fired power capacity being retrofitted with flue gas desulfurization (FGD) scrubbers between 2005 and 2011. In fact, by the end of 2011, 60% of the ...
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1. Introduction. In China, coal-fired power plants produced large amounts of combustion residuals, including fly ash and flue gas desulfurization (FGD) gypsum [1].Due to the increasingly strict air control policy, the amount of combustion by-products has increased rapidly.
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Advisory Board; Journal Development Team; Editorial Policies; Contact; News; ... Power plant flue gas desulfurization slag replaces natural gypsum as cement retarder," Cement 10, 21 ... Flue gas desulfurization gypsum (FGDG), a solid waste material generated by power plants, offers a cost-effective solution for preparing backfill …
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This article reviews the properties, production, and applications of flue gas desulfurized gypsum (FGD gypsum) in China, a by-product of coal combustion. It also …
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Current study proposes an effective way to modify the properties of super-sulfated cement (SSC) paste and mortar with preheated flue gas desulfurization (FDG) gypsum at different temperatures and durations, and different sulfate compositions. Preheated FGDs with temperatures between 25 and 150 °C and durations between 0 …
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1.1. Flue gas desulfurization processes. The flue gas desulfurization (FGD) processes can be separated into two main categories: once-through and regenerable processes, depending on how the sorbent is treated after SO 2 adsorption (Srivastava and Jozewicz, 2001).Once-through, or non-regenerable, processes utilize the sorbent as a …
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Flue gas desulfurization gypsum (FGDG) and fly ash (FA) are by-products from coal-fired power plants that urgently need to be recycled in a sustainable way. This study aims to develop a green binder using FGDG incorporating cement and large-volume FA that can substitute some cement in structural and geotechnical …
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The thermal instability of most mercury (Hg) species in flue gas desulfurization (FGD) gypsum may lead to the release of large amounts of Hg into the atmosphere. In this study, gypsum samples were collected from 13 major coal-fired power plants (CFPPs) for evaluating the Hg thermal stability within a temperature range of …
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Flue Gas Desulphurized Gypsum (FGDG) is a by-product generated by the thermal power industry to remove sulfur dioxide (SO 2) from flue gas emissions.This paper provides a comprehensive review of flue gas desulphurized (FGD) gypsum production, property, and applications in the construction industry.
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1. Introduction. The term Flue Gas Desulphurisation (FGD) system has traditionally referred to wet scrubbers that remove SO 2 emissions from large electric utility boilers. The FGD systems emerged in the industrial field of the coal-fired power plants and on some industrial processes in the early 1970s in United States (US) and Japan, and …
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