Silage and flue gas desulfurized gypsum as additives …
Request PDF | On Apr 1, 2023, Wan Yang and others published Silage and flue gas desulfurized gypsum as additives improve green waste composting | Find, read and cite all the research you need on ...
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(PDF) Influence of Early Strength Agent on the Strength 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 ...
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Effect of Desulfurization Ash with Different Gypsum
Results show that the addition of calcined FGD gypsum and active calcium aluminate is able to improve the early compressive strength but using more FGD gypsum and a high sulfur aluminum ratio ...
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Utilization of low-quality desulfurized ash from semi-dry …
In the gypsum-metakaolin-cement system, although the dried FGD gypsum slightly reduced the workability of the mortar, the interval between the initial setting and the final setting was shortened ...
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Desulfurized gypsum regulates the hydration and …
The influence of different amounts of gypsum on the hydration of a belite-rich and a ye'elimite-rich belite-calcium sulfoaluminate clinker (BCSA) was investigated.
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Characterization and optimization of desulfurized …
By developing high-performance FGD gypsum-nanocellulose composites, this research contributes to the sustainable utilization of industrial by-products and the …
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Study on the desulfurization performance of calcium-based …
The ordinary calcium-based desulfurizer prepared by the traditional digestion best method was termed as 1 # desulfurizer under specific conditions (at 368.15 K for digestion, water-cement ratio (mass ratio) of 0.84:1, the stirring speed of 100 rpm, and 600 s digestion), whose bulk density and specific surface area were 496 kg∙m −3 and 19.02 m 2 ∙g −1.
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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 study was to improve. comprehensive properties of GSL and prepare qualied desulfurized building gypsum-based self-leveling
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Research on optimizing performance of desulfurization …
Desulfurization-gypsum-based composite cementitious materials were prepared by adding certain proportions of sulfoaluminate cement, mineral powder quick lime, retarder, and …
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A comprehensive review of flue gas desulphurized gypsum: …
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%).
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Synergistic effect of red mud, desulfurized gypsum and fly …
Electrolytic manganese residue (EMR) is a solid waste with a main mineralogical composition of gypsum. It is generated in the production of metal manganese by the electrolysis process.
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Recent advances in flue gas desulfurization gypsum …
According to the U.S. Energy Information Administration's statistics, in the 2006–2016 period, approximately 42% of the electricity consumed in the U.S.A was produced by coal combustion (U.S. Energy Information Administration, 2018).The coal combustion process generates various types of residues such as fly ash, bottom ash, boiler slag, flue bed …
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Advances on resource utilization of semi-dry desulfurization …
The semi-dry flue gas desulfurization ash (SFGDA) is an industrial waste generated by the semi-dry desulfurization process, and its resources have been continuously attracted attention. Through the method of heat decomposition, the SFGDA decomposed into CaO and SO2 has emerged as a prominent research topic. This paper summarizes various of research …
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(PDF) Progress of Desulfurization and Denitration …
The use of ammonium reagents in the processes of semi-dry desulfurization of flue gas is promising, since the product of desulfurization is ammonium sulfate, which can be used as a mineral fertilizer.
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Advances in Utilization of Flue Gas Desulfurization Gypsum
Flue Gas Desulfurization Gypsum; Utilization Status; Research Progress; Application Problems Abstract A large number of coal-fired flue gas is the culprit that caused by air pollution and …
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High value-added utilization of desulfurized building …
Gypsum, recognized as sustainable materials, has been commonly used in indoor structures due to its low cost, light weight, thermal/acoustic insulation, and fire resistance …
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WO2018166220A1
A method for co-producing sulphoaluminate cement and sulfur by using desulfurized gypsum and aluminum ash, comprising: (1) drying aluminum ash, and heating desulfurized gypsum for dehydration to obtain semi-hydrated gypsum; (2) mixing the aluminum ash with the semi-hydrated gypsum according to a preset ratio, pulverizing, and homogenizing; (3) calcining the pulverized …
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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 sulfate, compound activator ...
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Resource utilization of flue gas calcium-based …
Chen [] made statistics on the main physical phases of CDA from steel plant sintering machines and coal-fired power plants, and the results are shown in Table 2.Among the many components, CaSO 3 contains the highest percentage, which is generated by the reaction between SO 2 and lime in the flue gas. The CaCO 3 content is also higher because the flue …
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Reclamation of saline-sodic soil properties and improvement of rice
Desulfurized gypsum, a by-product of thermal power plants for removal of sulfur from coal, may be used as an external source of Ca2 + for reclamation of saline-sodic soil in this plain because it ...
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Global Desulfurized Gypsum Market Research Report …
planning to foray into the Desulfurized Gypsum market in any manner. Global Desulfurized Gypsum Market: Market Segmentation Analysis +44 20 8123 2220 info@marketpublishers Global Desulfurized Gypsum Market Research Report 2024(Status and Outlook)
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Preparation, characterization and application of red mud, fly …
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
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Study on Thermal and Durability Properties of Shape
In this paper, the research status of shape-stabilized phase change particles at home and abroad was extensively investigated, and the composite phase change materials of decanoic acid and myristic acid were prepared by heating and fusion of decanoic acid and myristic acid, and the optimum mass ratio of decanoic acid and myristic acid was measured as …
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Effects of hybrid fibers on properties of desulfurized gypsum …
In this study, hybrid-fiber high-durability concrete (HFHDC) for marine environment is developed by the orthogonal test, the effects of various factors on the performance of HFHDC were studied.
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(PDF) Study on the Harm of Saline Alkali Land and Its …
The research shows that desulfurization gypsum has the best effect in reducing pH value, and its r ange of reducing soil pH value is 0.71-1.25, with the maximum r eduction of 12.4%; followed by
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Global Desulfurized Gypsum Market Research Report …
Desulfurized gypsum is an industrial by-product gypsum obtained by desulfurizing and purifying the flue gas generated after combustion of sulfur-containing fuel (coal, oil, etc.). This report …
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Recent advances in flue gas desulfurization gypsum …
This review summarizes beneficial FGDG applications that have been deemed to pose minimal environmental concern, emphasizing their principles, research gaps, and …
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Investigation and Research on the Status Quo of …
Purpose-led Publishing is a coalition of three not-for-profit publishers in the field of physical sciences: AIP Publishing, the American Physical Society and IOP Publishing.. Together, as publishers that will always put purpose above profit, we have defined a set of industry standards that underpin high-quality, ethical scholarly communications.
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Progress in comprehensive utilization of electrolytic …
The EMR contains high minerals such as dihydrate gypsum and hemihydrate gypsum. Researchers at home and abroad mainly focus on the use of EMR as cement (Kovacs et al. 2017), wall material, and paving material. Dihydrate gypsum is an important raw material for the production of building materials. ... and the desulfurized EMR could be applied to ...
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Effect of inorganic salt composition on strength, …
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 ...
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