The global Desulfurized Gypsum market was valued at US$ million in 2022 and is projected to reach US$ million by 2029, at a CAGR of % during the forecast period. The influence of COVID-19 and the Russia-Ukraine War were considered while estimating market sizes.
Gypsum is an excellent amendment to improve sodic-saline soil. As early as late 1900s, Hilgad, ... Xiao GJ, Luo CK, Zhang FJ, Wang B, Zheng GQ, Yang J, Mao GL, Bai HB 2010: Application amount of desulfurized gypsum from coal fired power plants on improving the quality of alkalized soil. Res. Environ. Sci., 23(6): 762–767.
This study aims to develop binary and ternary gypsum binders based on using the gypsum waste from the Flue Gas Desulphurization in Power Plants (Flue Gas Desulfurization …
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 prepare road base materials based on the different (CaO + Na 2 O)/(SiO 2 +Al 2 O 3 ) molar ratio, and its mechanical properties, durability, microstructure and environmental performance were investigated.
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 and the latest beneficial utilizations of FGD gypsum. China is a large coal-consuming country and has always had serious SO 2 emissions. Therefore, the Chinese ...
The grouting technique is an efficient method for enhancing the stability of cracked slopes through the use of grouting materials. Conventional cement-based grouting materials are costly, energy-intensive, and environmentally damaging. Additionally, cement-hardening slurry is prone to cracks between the slurry and the rock. To address these issues, this study proposed an …
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 ...
At present, industrial solid wastes in the world are characterized by high output, many kinds, large differences in physical and chemical properties, and uneven regional distribution [1], [2], [3].Typical industrial solid wastes are classified as: alkaline solid wastes (RM, carbide slag and alkaline slag, etc.), sulfate solid wastes (industrial by-product gypsum and …
High quality desulfurized gypsum and other industrial resource recycling has the effect of resource substitution at the national level, provides reclamation cost saving through complete resource utilization, and prevents possible secondary environmental contamination (scattered dust or leachate) after reclamation, making a contribution to the improvement of the electricity …
To solve the problems of difficult treatment of desulfurized gypsum and overmining of limestone, a kind of lime/gypsum flue gas desulfurization (FGD) collaborative desulfurized gypsum resource utilization process (LCS) was proposed. The system mainly includes the LCS-LFGD (lime/gypsum flue gas desulfurization system), LCS-C (desulfurized gypsum reduction …
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 and …
The effects of desulfurized gypsum on heavy metal contents of soils and leaves and stems of alfalfa were also investigated under field conditions. The experiment was conducted in a complete randomized design with four replicas of each treatment. Four treatments were control (without amendment), Guochan-1 (application rate of 2 250 kg·hm -2 ...
This work aimed to investigate the feasibility of utilizing the low-quality desulfurization ash from semi-dry flue gas desulfurization by mixing with α-hemihydrate gypsum, and then the environmental issues resulted from low-quality desulfurized ash from semi-dry flue gas desulfurization can be resolved, and both economic and ecological benefits are brought to …
Flue Gas Desulphurized Gypsum (FGDG) is a by-product generated by the thermal power industry to remove sulfur dioxide (SO 2) from flue gas emissions. This paper …
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 ash (FA) and desulfurized gypsum (DG), were used to prepare cementitious backfilling materials for underground mined-out areas. Ordinary Portland cement …
Gypsum deposits were formed during the Paleozoic Era, approximately 600 million years ago, when most of the Earth's surface was covered by salt water. Gypsum is composed of 79.1% calcium sulfate and …
The test takes the cementing system composed of ordinary Portland cement and desulfurized building gypsum as the research object, and the research is carried out based on the mechanism of the early strength agent that can accelerate the cement hydration reaction in the composite cementing system.
Calcium sulfate whiskers (CSWs) were synthesized using purified flue-gas desulfurization (FGD) gypsum as raw materials using a hydrothermal method, where the filtrate was recycled back to the reaction slurry. The study investigated the impact of pH and Cu2+ concentration in the reaction solution with or without reagent compensation. The effects of …
The use of cementitious materials to improve clay is a common technique in engineering. However, the effectiveness of these materials, particularly desulfurized gypsum, on clays with different mineral compositions remains unclear, resulting in a lack of theoretical basis for their application in engineering. This study investigated the synergistic effects of …
To investigate the macroscopic mechanical properties and failure evolution mechanism of desulfurization gypsum–fly ash fluid lightweight soil, a microscale numerical model using PFC2D (Particle Flow Code) was constructed. Uniaxial compression tests were conducted to determine the microscopic parameters of the model, extracting information on the discrete …
Fly ash–slag-based alkali-activated materials have excellent mechanical performance and a low carbon footprint, and they have emerged as a promising alternative to Portland cement. Therefore, replacing traditional Portland cement with slag–desulfurization gypsum-based alkali-activated materials will help to make better use of the waste, protect the …
On April 17, a train loaded with desulfurized gypsum slowly pulled out from Bijie East Station and was transported to Fangchenggang Station in Guangxi to realize the export …
In 2020, global FGD-gypsum production is expected to reach 255 million tons, with Asia accounting for 55%, followed by Europe (22%), North America (18%), and the rest of the world (5%).
Six treatments were set up (blank treatment (CK) desulfurized gypsum 15 t/ha (LH), desulfurized gypsum 30 t/ha (LA), desulfurized gypsum 15 t/hamixed application (FL), Aeolian sand 15 t/ha (FH), and Aeolian sand 30 t/ha (FA)). The effects of different treatments on CO 2 and N 2 O emission fluxes in cotton-pepper soil were observed. The results ...
Like natural gypsum, the application of flue gas desulfurization gypsum (FGDG) with irrigation provides economic and environmental value (Wang and Yang, 2018; Watts and Dick, 2014). FGDG is of low cost, because it is a side product of sulfur removal from fuel combustion in coal-fired power plants and does not require mining and processing ...
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
This research aims to study the utilization of waste from power plants, construction and demolition, and agriculture by varying the ratios of flue-gas desulfurization (FGD) gypsum, construction and demolition waste (CDW), and oil palm trunks (OPT) in concrete production. This research used these as the raw materials for the production of concrete bricks of 15 × 15 × 15 …
Asia-Pacific, particularly China, leads the global Desulfurized Gypsum market, with robust domestic demand, supportive policies, and a strong manufacturing base. Key Features: The …
Desulfurized gypsum/phosphoryl gypsum powder production line; II Anhydrous High Strength Gypsum Production Line; Plastering Gypsum Mortar Production Line ... On September 10, 2007, the company obtained the right to import and export by itself. . Our advantage. Thirty years of experience. Professional gypsum powder and gypsum board ...
Sales, as well as kiln engineering design, contracting, construction maintenance and refractory material import and export services.
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