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Flue gas desulfurization gypsum. SEM. Scanning electron microscopy. SPC. Slag Portland cement. ST. Silica tailing. 1. Introduction. ... (Grant No. 51534003 and 51774066), the Ministry of Science and Technology of the People's Republic of China (Grant No. 2016YFC0801601), ...
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converted into a gypsum slurry by the desulfurization pro-cess. The latter is then dehydrated to produce FGD gypsum (as shown in the following equations).17 Thus, the synthetic FGD gypsum can be used to replace natural gypsum in sev-eral industries.18,19 SO 2 in flue gas: Dissolution of limestone: An overall chemical reaction of the above ...
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Flue gas desulfuration gypsum (FGDG) generated in coal-fired power plants is a material suitable for several beneficial use applications. Its generation has …
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New Limestone-Gypsum Flue Gas Desulfuization Technology Abstract: A new wet FGD processes which SO 2 was absorbed in the spray tower using granular limestone …
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Desulfurization gypsum is widely used in building materials because of its good energy saving, but it cannot be used in high humidity areas because of its highly soluble salt. ... This work was supported by the Major Engineering Technology Project of Jiangxi Provincial Department of Transportation (2021C0008) the Natural Science …
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Flue gas desulfurization gypsum (FGDG) is valuable waste resource which can be used to improve saline soil. Monolith lysimeter leaching experiment was conducted with FGDG in heavily saline-sodic soil of northwest China. ... flue gas desulfurization technology was introduced to fix SO 2 in the form of CaSO 4, …
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Preparation of α -High Strength Gypsum from Flue Gas Desulfurization Gypsum Pretreated by Hydrothermal-aging Method. Cementitious Materials. Published: …
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Flue-gas desulfurization (FGD) is a set of technologies used to remove sulfur dioxide (SO. 2) from exhaust flue gases of fossil-fuel power plants, steel company etc, and from the emissions of other sulfur oxide emitting processes. Limestone-gypsum desulfurization process is one of the most widely used desulfurization technologies in the world.
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Desulfurization wastewater is industrial wastewater with a high salt content, high metal ions, and high hardness produced by flue gas desulfurization of the limestone-gypsum method in coal-fired power plants. This paper summarizes the source of desulfurization wastewater, water quality characteristics, water quality impacts, and …
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The existing flue gas desulfurization technologies in China inc lude limestone gypsum wet process, ammonia process, magnesium oxide process, semi-dry process, sea water desulfurization, double alkali
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Wet desulfurization technology includes limestone-gypsum desulfurization, dual-alkali desulfurization, magnesium oxide desulfurization, zinc oxide desulfurization, …
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New Limestone-Gypsum Flue Gas Desulfuization Technology. Pages 78–81. ABSTRACT. Recommendations. Comments. ABSTRACT. A new wet FGD processes …
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Flue gas desulfurization gypsum (FGDG) is an industrial by-product of the flue gas desulfurization process in coal-fired power plants [28]. The continuous development of our industrial era will bring more and more industrial by-products. The process of treating FGDG requires substantial financial resources and land [29], [30]. …
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DOI: 10.1016/j.seppur.2021.119849 Corpus ID: 239274748; Summary of Research Progress on Industrial Flue Gas Desulfurization Technology @article{Li2021SummaryOR, title={Summary of Research Progress on Industrial Flue Gas Desulfurization Technology}, author={Xueke Li and Jinru Han and Yan Liu and Zhi-he Dou and Ting'an Zhang}, …
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In fact, jet mill grinding with superheated steam for desulfurization gypsum obtains superfine and semihydrated gypsum powder, ... (2018YFC1903500), and the research fund from Southwest University of Science and Technology (JZ21–027). Recommended articles. Data availability. Data will be made available on request.
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The results show that adding desulfurized gypsum, which accounts for 6% to 8% of the total mass of the cementitious material, has no adverse effect on the …
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Although the desulfurization technology of wet limestone gypsum powder used in thermal power generation can control SO 2 emissions and reduce air pollution [4, 5], the resulting industrial by-product desulfurization gypsum has not been properly dealt with. With the increasing output of desulfurization gypsum, it becomes the second …
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It has been documented that the addition of desulfurization gypsum (DG) can improve the engineering properties of OPC (Guo and Shi, 2008; Boonserm et al., 2012). Similarly, needle-like ettringite (AFt) can be generated by the activation of FA by DG in the GGBS-FA-DG ternary geopolymer ( Singh and Garg, 1995 ; Shen et al., 2007 ; Meskini …
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In this paper, a model of limestone/gypsum wet flue gas desulfurization (WFGD) system was developed based on unsteady theory. ... Because of its high efficiency and reliability, limestone–gypsum wet flue gas desulfurization (WFGD) technology is the most commonly used technology for controlling the emission of SO 2 in the world [1], …
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Thus, in view that the annual production of gypsum from gas desulfurization is more than 110 million tons in the whole world, 28.6 million tons of CO 2 could be sequestered by carbonation approach, signaling a great potential of this technology for CO 2 storage and gypsum utilization.
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The wet limestone/gypsum flue gas desulfurization (WFGD) technology has been attracting much interest, while handling with wastewater produced in WFGD is indispensable but difficult. Zero liquid Discharge (ZLD) technology is to recycle water content and reuse salt content of wastewater, which has becoming developing trend …
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Introduction. Flue gas desulfurization gypsum (FGD gypsum), which is mainly composed of CaSO 4 ·2H 2 O (DH), is the industrial waste residue produced by …
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Abstract. In recent years, simultaneous desulfurization and denitrification technology has gradually become a research hotspot at home and abroad. The purpose of this paper is to study simultaneous desulfurization and denitrification of electrodialysis/Fe (II) system. In order to study the electrochemical effect on …
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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 …
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Flue gas desulfurized gypsum mainly comes from thermal power plants, smelters, and large-enterprise boilers, and contains industrial by-products produced …
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Limestone-gypsum wet flue gas desulfurization (WFGD) process is widely used in coal-fired power plants in China because of its technical characteristics of high desulfurization efficiency, mature process, and strong adjustability (Córdoba, 2017; Wang et al., 2010).With the continuous improvement of atmospheric emission standards, the …
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Flue gas desulfurization is the process of removing sulphur compounds from the exhaust emissions of fossil-fueled power stations. This is done through the addition of absorbents, which can remove up to 95% of the sulphur dioxide from the flue gas. Flue gas is the emitted material produced when fossil fuels such as coal, oil, natural gas, or ...
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Abstract. Special attention is required on the fine particle control after desulfurization because a large quantity of fine particles are emitted into the atmosphere from the coal-fired power plants. In an attempt to figure out the transformation of fine particles during the limestone gypsum desulfurization, the physical properties of fine ...
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Abstract. Special attention is required on the fine particle control after desulfurization because a large quantity of fine particles are emitted into the …
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The desulfurization gypsum are widely utilized in cement retarder, building material, embedment and neutralizer or regulator of soil in agriculture [3, 4]. At same time, decomposing of desulfurization gypsum or Phosphogypsum to producing ( {text{CaO}} ) and ( {text{S}}{{text{O}}_2} ) is another promising utilization method for cement as ...
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