mechanism of desulfurized gypsum improving soil in Oman
The Study of Improving Saline-Alkali Soils by Means of the …
After application of 11,250 kg · hm-2 of desulfurized gypsum in the 0-20 cm surface layer of soils moderate in sodic salinity, the chemical properties of the soils improved with ESP reduced down ...
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Research on effects of desulfurization gypsum, humic …
The treatments of DB3, DF2, and DP3 (0.5% desulphurized gypsum +1.5% polymaleic anhydride) had shown great potential to improve soil salinization characteristics and enhance soil fertility, which ...
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Application of flue gas desulfurization gypsum improves multiple
Gypsum addition with irrigation can ameliorate saline-sodic soils by displacing excessive sodium in soils with calcium from gypsum, with the excessive sodium (Na) leached down to deeper soil layers. Like natural gypsum, the application of flue gas desulfurization gypsum (FGDG) with irrigation provides economic and environmental …
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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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Cover Crop Complements Flue Gas Desulfurized …
Cover Crop Complements Flue Gas Desulfurized Gypsum to Improve No-till Soil Quality Khandakar R. Islam a, Greg Roth b, Mohammad A. Rahman a, Nataliia O. Didenko c, and Randall C. Reeder d aSoil, Water and Bioenergy Resources, The Ohio State University South Centers, Piketon, Ohio, USA; bDepartment Of Plant Science, …
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Silage and flue gas desulfurized gypsum as additives improve …
DOI: 10.1016/j.jece.2023.109385 Corpus ID: 256291270; Silage and flue gas desulfurized gypsum as additives improve green waste composting @article{Yang2023SilageAF, title={Silage and flue gas desulfurized gypsum as additives improve green waste composting}, author={Wan Yang and Ze Yin and Lu Zhang}, journal={Journal of …
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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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Flue gas desulfurization gypsum by-products alters …
The principle of using FGDB to improve sodic soil involved the replacement of exchangeable Na ... The mechanism of how the Ca 2+ in soil was absorbed by the plant under alkali ... Xiao G, Luo C, Zhang F, Wang B, Zheng G, Yang J, Mao G, Bai H. 2010. Application amount of desulfurized gypsum from coal fired power plants on improving …
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Effect of Polyethylene-Grafted Maleic Anhydride on the
Semidry desulfurization and wet desulfurization in a furnace are usually used in the circulating fluidized bed boiler in the power production of thermal power plants, and these two approaches lead to high calcium content in the fly ash and bottom slag of circulating fluidized beds and produce abundant flue-gas desulfurized (FGD) gypsum …
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Properties and microstructure of soil solidified by titanium …
Using Portland cement for soil solidification has sustainability issues due to high energy-consumption and carbon emissions.An innovative approach suggests using titanium slag and flue gas desulfurized gypsum as substitutes for Portland cement for soil solidification. This study systematically evaluates the effects of titanium slag-flue gas …
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High value-added utilization of desulfurized building gypsum …
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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Combined Application of Flue Gas Desulfurization Gypsum …
Flue gas desulfurization (FGD) gypsum and straw return have been recognized for their roles in reducing soil sodicity and improving soil organic matter. …
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Recent advances in flue gas desulfurization gypsum …
Kost et al. (2014) compared the influence of FGDG and natural gypsum on soil chemistry. After one year at a gypsum rate of 20 Mg ha − 1, soil treated with FGDG had pH levels lower than the untreated soil, and lower than the soils treated with natural gypsum, because natural gypsum has a higher CaCO 3 content, hence a higher ANC. …
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Effect of Mineral Admixtures on Physical, Mechanical, and
The production of flue gas desulfurization gypsum poses a serious threat to the environment. Thus, utilizing gypsum-based self-leveling mortar (GSLM) stands out as a promising and effective approach to address the issue. β-hemihydrate gypsum, cement, polycarboxylate superplasticizer, hydroxypropyl methyl cellulose ether (HPMC), retarder, …
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Remediation of heavily saline-sodic soil with flue gas …
tive management practices is the primary goal for improving sodic-saline soil. Gypsum is an excellent amendment to improve sodic-saline soil.Asearlyaslate1900s,Hilgad,Americansoilscientist,guided farmerstoimprovesodic-salinesoilbyusinggypsum(Kelly1959; Jenny 1988). At the early twentieth century, the …
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Processes | Free Full-Text | Synergetic Mechanism of …
In order to improve the comprehensive utilization rate of industrial solid waste and the road quality, a novel low-carbon and environmental friendly soil stabilizer is proposed. In this study, steel slag (SS), carbide slag (CS), blast furnace slag (BFS), fly ash (FA), and desulfurized gypsum (DG) were used as raw materials to develop a multiple …
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Gypsum for Soil: Revitalize Your Garden Clay for …
Gypsum for Soil: A Gardener's Best Friend. Gypsum, or calcium sulfate, is a natural mineral that has been used in agriculture for centuries. Unlike lime, which alters soil pH, gypsum is one of the …
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Deterioration of mechanical properties and damage mechanism …
Deterioration of mechanical properties and damage mechanism of flue gas desulfurization gypsum backfill under long-term erosion of chloride salt solution Tianqi Jiang ( ) 0000-0003-3500-8435
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Study on the influence mechanism of flue gas desulphurisation gypsum …
1. Introduction. 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 gas after the combustion of sulphur-containing fuels, such as coal and petroleum [1].In the limestone gypsum flue gas desulphurisation process, 2.7 …
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In-Season Effect of Flue Gas Desulfurization Gypsum on Soil …
Integration of flue gas desulfurized gypsum (FGD-gypsum) with cover crops is expected to improve soil quality (SQ). ... but the mechanism of FGDG decreasing aggregate stability was not clear. Some ...
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Application of flue gas desulfurization gypsum improves multiple
The by-product of wet flue gas desulfurization, desulfurized steel slag (DS), had chemical characteristics like natural gypsum that can be used to improve saline-sodic soil.
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Experimental Study on the Properties and Hydration Mechanism of Gypsum …
In order to achieve the resourceful, large-scale and high-value utilization of bulk industrial solid wastes such as flue gas desulfurization gypsum (FGDG), fly ash (FA) and ground blast furnace slag (GGBS), and to reduce the dosage of cementitious materials, orthogonal experimental methods were used to prepare composite cementitious …
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Cover Crop Complements Flue Gas Desulfurized …
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 …
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Cover Crop Complements Flue Gas Desulfurized Gypsum to …
Integration of flue gas desulfurized gypsum (FGD-gypsum) with cover crops is expected to improve soil quality (SQ). Our objectives were to evaluate the …
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Effects of decomposed straw and desulfurized gypsum on …
Saline-sodic soil colloids contain a large number of exchangeable sodium ions,leading to soil aggregates breakdown,clay dispersion and soil pores blocking.Saline-sodic soils improvement requires two processes,providing calcium source to exchange with sodium on soil surface and removing salt through leaching or drainage.In this study,we used corn …
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Strength and Mechanism of Carbonated Solidified Clay
Li et al. discovered that by utilizing steel slag and desulfurized gypsum as soil stabilizers, the ultimate compressive strength of the stabilized soil can be enhanced and the curing period can be ...
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A comprehensive review of flue gas desulphurized gypsum: …
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 ...
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Amendment of Saline–Alkaline Soil with Flue-Gas …
One potential technique is the application of flue-gas desulfurization gypsum, a by-product of technologies developed to remove sulfur dioxide from the exhaust flue gases of coal- and gas-fueled power …
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Strength and Mechanism of Carbonated Solidified …
carbonate are primary reasons for improving the UCS of the stabilised clay during carbonization. This research promotes steel slag and desulfurized gypsum as green stabilisers for soil stabilization, and the method of carbonation curing contributes to the higher UCS, which also greatly shortens the curing time. Solidified clay
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Recent advances in flue gas desulfurization gypsum …
The authors suggested the decrease in earthworm density and biomass could be attributed to the increased soluble salt content of soil by gypsum application. …
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