The use of waste to capture CO 2 has been on the rise, to reduce costs and to improve the environmental footprint. Here, a flue gas desulfurization (FGD) gypsum waste is proposed, which allows us ...
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 workability and can significantly improve ...
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 ...
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 …
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 …
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 …
[21] Tobert HA and Watt DB 2014 Impact of flue gas desulfurization gypsum application on water quality in a coastal plain soil J Environ Qual 43 273-280. Google Scholar [22] Tong ZJ, Li QS and Zhou YS 2009 Effects of desulfurized gypsum on heavy metal desorption and speciations in tidal flat reclaimed soil Eco and Environ Sci 18 2172 …
Integration of flue gas desulfurized gypsum (FGD-gypsum) with cover crops is expected to improve soil quality (SQ). Our objectives were to evaluate the impact of FGD-gypsum and rye on SQ and the ...
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 …
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 …
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 unclear. ... covering an area of more than 2 million hectares, and thus, imparting ecological and safety hazards [6, 7].
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, …
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
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 …
Thermal Power Plant generates FGD gypsum as by-product during coal combustion. This study evaluates the characterization (spectroscopic and elemental), potentially toxic elements (PTEs ...
The influences of desulfurization gypsum on the properties of both Magnesium oxychloride cement (MOC) pastes and MOC abrasive tools were investigated in this study.
DOI: 10.1016/j.jclepro.2020.124777 Corpus ID: 226335113; Preparation, characterization and application of red mud, fly ash and desulfurized gypsum based eco-friendly road base materials
the limestone gypsum flue gas desulfurization process, 2.7 ton of desulfurized gypsum can be generated for each 1 ton of SO2 removed [3]. A 300 MW coal-fired thermal power unit discharges about 30,000 ton of desulfurized gypsum every year (assuming 1.0% sulfur in coal) [4]. A substantial amount of desulfurized gypsum is generated as a by …
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 …
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
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 …
The treatment of flue-gas desulfurization (FGD) gypsum, a common solid waste material that is often affected by chloride ions, typically occupies large amounts of …
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 …
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 … Expand
Round 1. Reviewer 1 Report Authors are advised to include more details about. tensile strength and impact strength of composites measurements along with the equipment details in experimental section and results and discussion part, that would help the other to reproduce their results.
The presence of hazardous elements such as arsenic, mercury, cadmium, lead, and selenium in FGDG has reduced its beneficial value.
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 …
Thermal Power Plant generates FGD gypsum as by-product during coal combustion. This study evaluates the characterization (spectroscopic and elemental), …
In order to reduce industrial carbon dioxide emissions using the mineral carbonation reaction, the use of desulfurized gypsum to prepare high-purity calcium …
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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