High value-added utilization of desulfurized building gypsum …
The utilization of desulfurized building gypsum as raw material for gypsum-based self-leveling mortar (GSL) is limited by its low strength and poor water resistance. The objective of this study is to enhance comprehensive properties of GSL and prepare qualified desulfurized building gypsum-based sel …
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Analysis of Strength and Microstructural …
The utilization of solid wastes (SWs) as a potential resource for backfilling is not only conducive to environmental protection but also reduces the surface storage of waste. Two types of SWs, including fly …
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Application of Flue Gas Desulfurization Gypsum and Its …
The 11 major electricity-generating coal combustion stations in the northern Great Plains have the potential to produce almost 1 million Mg of flue gas desulfurization …
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The Effects of Combined Retarders on the Properties of Desulfurized Gypsum
As a relatively fast-setting building material, desulfurized gypsum is difficult to use. Citric acid, sodium gluconate, and sodium tripolyphosphate were used to design and prepare a desulfurized gypsum paste containing single or combined retarders. The ef
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Gypsum in Oman
The fastest growing export markets for Gypsum of Oman between 2021 and 2022 were India ($25.7M), Nepal ($2.29M), and Indonesia ($1.5M). Imports In 2022, Oman imported $559k in Gypsum, becoming the 130th largest importer of Gypsum in the world. At the same year, Gypsum was the 854th most imported product in Oman.
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Effect of curing temperature on the reaction kinetics of …
Recently, the steel slag-fly ash-desulfurized gypsum (SS-FA-DG) composite system was developed as a novel building cementitious material, however, its reaction mechanism and reaction process mains ...
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Coatings | Free Full-Text | Study on the Micro Mechanism of …
The weighed fly ash, desulfurized gypsum, cement and silt are poured into the mixer for dry mixing for about 1 min. Next, pour half of the weighed water and stir for 30 s, followed by adding the remaining water and mixing for about 3 min to create a desulfurization gypsum–fly ash fluidized lightweight soil slurry. Pour the slurry into a test ...
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Performance Analysis and Improvement of Gypsum Board …
Research on the method of improving the influence of chloride ion on the performance of desulfurized gypsum products [J]. New building materials. 2014, 11: 41-45.
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Influence of Calcined Flue Gas Desulfurization Gypsum …
The above research shows that the application of desulfurized gypsum in concrete systems will help improve the overall performance of concrete, realize the industrial utilization of desulfurized gypsum, and turn desulfurized gypsum into treasure, which is in line with the green and low-carbon development concept. However, adding …
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Analysis of Strength and Microstructural Characteristics of …
ash and desulfurized gypsum to prepare backfills for underground mines. It is also good to notice that further investigations on optimization of the dosages of solid wastes used
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Oman Industrial Gypsum LLC
Oman Gypsum quarry is located 19 km South of Thumrait city, Salalah. Thumrait is the nearest city. Quarry is located 4 Km (well graded road) away from the Muscat- Salalah dual carriage main highway. Nearest sea port for shipment is Salalah Port. This is well connected with high quality road network of Oman. Salalah Port is located 82.0 Km from …
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Ignoring emissions of Hg from coal ash and desulfurized gypsum …
It would be expected that more mercury would be present in coal ash and desulfurized gypsum from the increased combustion of coal and the abundance of Hg removal facilities in Chinese coal-fired power plants, highlighting the increased emphasis on the removal of mercury from atmospheric emissions of coal- Fired power plants in …
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Properties and microstructure of soil solidified by titanium …
DOI: 10.1016/j.conbuildmat.2024.137061 Corpus ID: 270530557; Properties and microstructure of soil solidified by titanium slag-flue gas desulfurized gypsum-Portland cement composites as solidifiers
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Fine Particle Transformation during the …
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 …
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Amendment of Saline–Alkaline Soil with Flue-Gas …
The effective and safe use of FGD gypsum in agricultural land is still debated in some countries even though its effectiveness in soil management has been reported in many studies. Thus, the changes in …
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A comprehensive review of flue gas desulphurized gypsum: …
Flue gas desulfurization (FGD) gypsum is a byproduct of the combustion of coal, used for electricity generation. This material is generated during the process of scrubbing flue gases from power plants to remove sulfur dioxide emissions, which …
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Effects of hybrid fibers on properties of desulfurized gypsum …
DOI: 10.1016/j.conbuildmat.2023.131840 Corpus ID: 258997305; Effects of hybrid fibers on properties of desulfurized gypsum-based composite cementitious materials @article{Lv2023EffectsOH, title={Effects of hybrid fibers on properties of desulfurized gypsum-based composite cementitious materials}, author={Fangtao Lv …
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Recent advances in flue gas desulfurization gypsum …
The presence of hazardous elements such as arsenic, mercury, cadmium, lead, and selenium in FGDG has reduced its beneficial value.
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Study on the influence mechanism of flue gas desulphurisation gypsum …
Semantic Scholar extracted view of "Study on the influence mechanism of flue gas desulphurisation gypsum on solid waste-based geopolymer grouting materials" by Dedan Duan et al. ... Effect of curing temperature on the reaction kinetics of cementitious steel slag-fly ash-desulfurized gypsum composites system. Siyu Duan Hao Wu Ke …
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Experimental investigation of utilizing waste flue gas desulfurized …
Flue gas desulfurized gypsum (FGDG) is a waste material produced in the power stations during the flue gas desulfurization process. In China, a small amount of FGDG is used as cement additives or for gypsum boards, but there still exist a mass of FGDG due to the lack of reusing methods. Also, the waste fly ash (WFA) is another …
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Characterization of flue gas desulphurized (FGD) gypsum of …
Thermal Power Plant generates FGD gypsum as by-product during coal combustion. This study evaluates the characterization (spectroscopic and elemental), …
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Desalting effect of flue gas desulfurization gypsum (FGDG
The purpose of the study is to explore the desalting effect of flue gas desulfurization gypsum (FGDG) on coastal saline-sodic soils by evaluating changes of …
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Performance Analysis and Improvement of Gypsum …
Three batches of desulfurized gypsum with different chloride ion content were used to prepare gypsum board. According to JC/T 2074-2011 "Flue Gas Desulfurization Gypsum", the chloride ion contents in
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Improvement in Water Resistance of Desulfurized …
gypsum was divided into deta il, and its comprehensive utili-zation status was analyzed.14) Secondly, some progress has been made in the research of desulfurized gypsum as a waterproofing agent, and a new type of building gypsum-based waterproofing agent has been prepared.15) In addi-tion, a new type of high-efficiency inorganic composite
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Production and resource utilization of flue gas desulfurized gypsum …
DOI: 10.1016/j.envpol.2021.117799 Corpus ID: 236531280; Production and resource utilization of flue gas desulfurized gypsum in China - A review. @article{Liu2021ProductionAR, title={Production and resource utilization of flue gas desulfurized gypsum in China - A review.}, author={Sen Liu and Wei Liu and Fen Jiao …
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Influence of Calcined Flue Gas Desulfurization Gypsum and …
The above research shows that the application of desulfurized gypsum in concrete systems will help improve the overall performance of concrete, realize the industrial utilization of desulfurized gypsum, and turn desulfurized gypsum into treasure, which is in line with the green and low-carbon development concept.
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Effects of Fluorogypsum and Flue-Gas Desulfurization …
In order to reduce industrial carbon dioxide emissions using the mineral carbonation reaction, the use of desulfurized gypsum to prepare high-purity calcium …
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Preparation, characterization and application of red mud, fly …
Li et al. [12] showed that by adding desulfurized gypsum to concrete with a large amount of slag, the loss rate of early compressive strength of concrete was improved, the hydration reaction rate ...
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Flue Gas Desulfurization: The State of the Art
paper presents a comprehensive review of the state of the art in flue gas desulfurization (FGD) technologies for coal-fired boilers. Data on worldwide FGD applications reveal …
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Application of Flue Gas Desulfurization Gypsum and Its Impact …
F lue gas desulfurization gypsum (FGDG) is a synthetic gypsum that is created during the removal of SO 2 from flue gas by reacting the SO 2 with calcite (CaCO 3) to form calcium sulfite (CaSO 3 ·0.5H 2 O), which is further treated with wet limestone and forced oxidization to form calcium sulfate (CaSO 4 ·2H 2 O) (Laperche and Bigham, …
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