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Desulfurized gypsum (DG) presents significant challenges in recycling with the rapid development of industrialization. To explore the feasibility of DG as a sulfate source in …
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The type of hydration products is determined mainly by the ratio of gypsum and C 4 A 3 S ̅ in BSAC [33], [34]. When the gypsum content is sufficient in the early hydration stage, …
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Flue gas desulfurized (FGD) gypsum is an industrial by-product produced during the combustion process of wet desulfurization, which mainly originates from thermal power …
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ABSTRACT. As a relatively fast-setting building material, desulfurized gypsum is difficult to use. Citric acid, sodium gluconate, and sodium tripolyphosphate were used to …
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The cemented paste backfill technology can avoid the hazards caused by surface disposal and provide safety guarantees for underground mining of metal mines. ... pyrite, …
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GYPSUM† Chemical Identification ... NIOSH: Pocket Guide to Chemical Hazards - Gypsum Literature References ACGIH: Documentation of the Threshold Limit Values (TLVs) …
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The presence of hazardous elements such as arsenic, mercury, cadmium, lead, and selenium in FGDG has reduced its beneficial value.
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To address the issues of the low pozzolanic activity and high pollution potential of red mud (RM), this study utilizes different industrial solid wastes to synergistically enhance the …
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The experimental analysis revealed that the influence of the desulfurized gypsum content on the strength at 3, 7, and 28 days is greater than that of the cement clinker content. …
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The ultra-high addition of 20 % desulfurized gypsum is beneficial to improve the strength of DG-based binary cementitious materials with low energy consumption. The …
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however dew point conditions or other conditions causing presence of moisture may harden gypsum during storage. Use adequate ventilation and dust collection equipment and ensure …
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At present, the industrial utilization of desulfurized gypsum has become one of the main research directions of scholars. Comprehensive utilization of desulfurized gypsum …
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Estimating the feasibility of using industrial solid wastes as raw material for polyurethane composites with low fire hazards. J. Clean. ... Preparation, characterization and …
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The main component of desulfurized steel slag is calcium sulfate, which is similar to desulfurized gypsum. ... it could be expected that DS could be used as the amendment of saline-sodic soil. …
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Thermal Power Plant generates FGD gypsum as by-product during coal combustion. This study evaluates the characterization (spectroscopic and elemental), …
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In response to the basic policy of green and low-carbon circular development to solve resource, environmental and ecological problems, gypsum is considered to be a filling …
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Flue gas desulfurized gypsum (FGD gypsum), mainly originates from thermal power plants, smelters, and large-scale enterprise boilers.This article reviews the production in China …
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The trace elements will be captured in the gypsum slurry and wastewater produced by the FGD system, and then enriched in the desulfurized gypsum and sludge [7]. Currently, …
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Desulfurization gypsum is also known as smoke desulfurization gypsum, sulfur gypsum or FGD gypsum, the main component is the same as natural gypsum, calcium sulfate dihydrate …
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In this study, the potential of using desulfurized gypsum (DG), phosphogypsum (PG), gypsum dihydrate (G), and calcium carbide slag (CS) in the production of supersulfated …
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The obtained semi-aqueous desulfurized gypsum was the original desulfurized gypsum, which was placed in an oven at 180 °C and dehydrated for 2 h under synchronous …
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This study indicates that: (1) Desulfurized gypsum could promote the hydration and dissolution of steel slag, while cement clinker, slag, and fly ash provide an alkaline environment for steel …
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Desulfurized gypsum has high water content and high fluidity, only suitable for belt transportation. Desulfurization gypsum and natural gypsum are different in dehydration, grindability and …
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An Experimental Study on the Effect of Desulfurized Gypsum on Geopolymer-Solidified Soil
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Citric acid, sodium gluconate, and sodium tripolyphosphate were used to design and prepare a desulfurized gypsum paste containing single or combined retarders. The effects …
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Calcium(II) sulfate dihydrate, Gypsum stone, Hydrated calcium sulfate, Mineral white [Note: Gypsum is the dihydrate form of calcium sulfate; Plaster of Paris is the …
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The fineness of desulfurized construction gypsum is fine, the specific surface area is large, the particle size range is narrow, the water consumption of the standard consistency …
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BPG primarily consists of desulfurized gypsum, phosphogypsum, and titanium gypsum, which account for 88% of the total BPG in China. The large-scale utilization of these three types of …
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Flue gas desulphurisation gypsum (FGDG) mainly refers to the solid by-product produced via lime gypsum desulphurisation that is performed in various industries to treat flue …
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Dicarboxylic acid modifiers play a crucial role in the controlled synthesis of α-hemihydrate gypsum (α-HH) with an aspect ratio (AR) close to 1 from flue gas desulfurized …
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