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Characterization and optimization of desulfurized construction gypsum

Download Citation | On Nov 1, 2024, Xuewei An and others published Characterization and optimization of desulfurized construction gypsum modified with functionalized nanocellulose | …

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Potential of desulfurized gypsum as a sulfate alternative in …

DOI: 10.1016/j.jobe.2024.111335 Corpus ID: 274039786; Potential of desulfurized gypsum as a sulfate alternative in preparing solid waste-based limestone calcined clay cement (LC3) and its …

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Recent advances in flue gas desulfurization gypsum …

Flue gas desulfurization gypsum (FGDG) is an industrial by-product generated during the flue gas desulfurization process in coal-fired power plants. ... Several people have used coal …

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Effect of Industrial Byproduct Gypsum on the Mechanical …

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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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 …

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Study on desulfurized gypsum used as cement retarder

Effect of desulfurized gypsum treated with hydrogen peroxide on setting time of Portland cement 3.4. The influence of the mixture of desulfurized gypsum and natural gypsum …

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Calcination of calcium sulphoaluminate cement using flue …

Flue gas desulfurized gypsum (FGD gypsum), mainly originates from thermal power plants, smelters, and large-scale enterprise boilers. This article reviews the production …

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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 …

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Desulfurization gypsum uses and …

Desulfurized gypsum contains partially unreacted CaCO 3 and partially soluble salts, such as potassium salts and sodium salts. The presence of these impurities promotes the hydration …

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Steering the early strength of clinker-free cementitious …

The production of cement is a highly energy-intensive process, which consumes 3.0 % of the world's annual energy output and releases roughly 8.0 % of the global CO 2 …

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Utilization of Desulfurization Gypsum to Producing SO

The system diagram of reducing gypsum in the multi- stage and multi-atmosphere fluidized beds. Diagrammatize: 1 raw material; 2 pelleter; 3 adhesion material; 4 drying …

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American-Made Drywall Emerges as …

Nearly half of American drywall is now made with this synthetic product, known as flue gas desulfurized gypsum or FGD gypsum. Despite its increasing popularity, synthetic …

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High value-added utilization of desulfurized building gypsum …

Desulfurized building gypsum (DBG) has great application potential and can be used to produce lightweight plastering gypsum (LPG). In this work, DBG was modified by …

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Mechanical Properties and Coagulation Characteristics of …

To resolve problems caused by the accumulation of flue gas desulfurization gypsum (FGDG) in the environment, a polymer material was prepared using FGDG, granulated blast furnace slag …

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Hao WEN | Taiyuan University of Technology, …

Given the great environmental pressure brought by the massive stacking of solid waste, red mud and desulfurized gypsum were used to prepare cementitious materials.

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Full article: Cover Crop Complements Flue Gas …

FGD-gypsum and cover crop effects on soil physical properties. Bulk density (ρb), as a measure of soil compaction, was significantly affected by FGD-gypsum and cover crop managements (Table 7). FGD-gypsum …

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Ignoring Emissions of Hg from Coal Ash and Desulfurized Gypsum …

It was reported that soot materials can be made by desulfurized gypsum, fly ash and lime, producing strength in the process of consolidation reaction, which are used as …

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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 …

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Recent advances in flue gas desulfurization gypsum …

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, …

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Cover Crop Complements Flue Gas Desulfurized Gypsum to …

Soil is one of the dynamic components of terrestrial ecosystems and a critical basis for food security and ecosystem services. Sustainable management

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Preparation, characterization and application of red mud, fly …

Red mud (RM), fly ash (FA) and desulfurized gypsum (DG) are harmful solid wastes that need to be treated. In this study, RM, FA, DG were used as the main raw materials to …

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High value-added utilization of desulfurized building …

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 …

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Land Degradation & Development | Environmental & Soil …

However, the large-scale application of flue gas desulfurization (FGD) gypsum for the reclamation of high-sodicity wasteland to obtain productive fields still lacks quick and …

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Potential of desulfurized gypsum as a sulfate alternative in …

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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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 and the ...

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Effect of Mineral Admixtures on Physical, Mechanical, and

The GSLM benchmark mix ratio was determined as follows: 94% of desulfurization building gypsum, 6% of cement, 0.638% each of water reducer and retarder, 0.085% each of …

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Recent advances in flue gas desulfurization gypsum …

Gypsum blocks are another type of construction material in which FGDG is being used as a replacement of natural gypsum. ... Several people have used coal combustion by …

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Desulfurization gypsum uses and …

Desulfurization gypsum has few harmful components. When used as a cement retarder, it can basically replace natural gypsum. The prepared cement performance is not much different from …

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Mechanical Properties and Coagulation Characteristics of …

In the limestone gypsum flue gas desulfurization process, 2.7 ton of desulfurized gypsum can be generated for each 1 ton of SO 2 removed . A 300 MW coal-fired thermal power unit …

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Recycling waste gypsum and calcium carbide slag …

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 cement (SSC) was investigated. The effects of …

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Study on the Micro Mechanism of Failure Evolution of

To investigate the macroscopic mechanical properties and failure evolution mechanism of desulfurization gypsum–fly ash fluid lightweight soil, a microscale numerical …

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Potential of desulfurized gypsum as a sulfate alternative in …

Desulfurized gypsum exhibits lower sulfate content and higher solubility than natural gypsum. The effect of desulfurized gypsum on the hydration, workability and strength …

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Comparative Analysis of Hydration Expansion Performance of Desulfurized …

Using desulfurized gypsum and steel slag as raw material make desulfurized gypsum-steel slag composite gelled material, by adding cement, triethanolamine, aluminium …

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Study on the Improvement Effect of Desulfurization Gypsum …

As the waste of coal-fired power plant, desulphurization gypsum is mainly composed of CaSO 3 and CaSO 4, which can replace Na+ in saline-alkali soil to improve …

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Research on saline-alkali soil amelioration with FGD gypsum

As we know, coal is the dominant energy in Chinese energy mix. Almost all of the coal-fired power plants are required to equip desulfurization facility to remove SO 2 in the flue …

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