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·To effectively solve the problem of recovery and utilization of flue gas desulfurized gypsum FGDG a new method for preparing SO2 gas by adding a mixture of FGDG and pyrite into a boiling furnace and utilizing its high temperature waste heat is proposed Using the FactSage Reaction module and the Equilib module the pyrolysis behavior of FGDG
·The experiment carried out in 2022 and 2023 using a completely randomized block design Based on the physical and chemical properties of the soil the following five soil improvement treatments were designed 1 no fertilizer CK ; 2 desulfurized gypsum T t ha −1 ; 3 t ha −1 desulfurized gypsum and t ha −1 green manure green manure is
Analysis of moisture infiltration in saline alkali soil while adding desulfurized gypsum GAO Xiaolong 1 2 3 4 WANG Youqi 1 2 3 4 BAI Yiru 1 3 4 RUAN Xiaohan 1 2 3 4 ZHONG Yanxia 2 3 4 1 College of Geography and Planning Ningxia University 750021
·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
Chloride ion has an important influence on the performance of gypsum board prepared by desulfurization gypsum especially in wet environment Therefore this paper analyzed the influence of chloride ion on the bonding propertiesof gypsum board and studied the ways to improve the bonding properties of gypsum board prepared by desulfurization gypsum with
·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 enhance comprehensive properties of GSL and prepare qualified desulfurized building gypsum based self leveling mortar that can be effectively applied in
Tens of millions of tons of desulfurized gypsum can be produced in China every year Desulfurization gypsum is used as an admixture to replace part of cement in concrete And the smaller the particle size of desulfurized gypsum the better the mechanical properties of cement mortar The compressive and flexural tests show that the cement mortar with 3% and 4%
·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 contribution of core indicators to account for SQ variability in a rainfed corn soybean system A completely randomized design CRD with two FGD
·Effects of desulfurized gypsum on heavy metal desorption and speciations in tidal flat reclaimed soil 3 Research on the amount of desulfurized gypsum from the coal burning power plant applied to
·Desulfurized Gypsum Market Size Capacity Demand & Supply 2023 This report aims to provide a comprehensive presentation of the global market for Desulfurized Gypsum with both quantitative and qualitative analysis to help readers develop business/growth strategies assess the market competitive situation analyze their position in the current
·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
To deal with the high carbon emission and high cost of traditional backfilling materials taking green mine as the concept industrial solid wastes such as carbide slag desulfurized gypsum and slag were used as cementitious components and tailings were used as
·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
·The desulfurized gypsum application rates varied between 0 and 50 t·hm 2 across six treatment levels based on the soil Na and Mg 2 exchange capacity A control group was included at 0 t·hm 2 Each treatment consisted of five experimental plots including three for soil profile sampling and two for backfilling to mitigate the impact of
·CS desulfurization pH is not easy to control easy to block the pipeline gypsum moisture content is high and dehydration is not easy The pH of CS slurry is and that of desulfurized gypsum is The pH span is large and difficult to control which will lead to the oxidation of CS desulfurized gypsum and the formation of CaSO 3 ·0
·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
·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
·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
·6 % of Hg in FGD gypsum could be reemitted at 100 200 ° The Hg release ratio is directly related to the HgClx content in FGD Wallboard production and being used as cement retarder were two main Hg re emission pathways of FGD gypsum The secondary Hg emission from FGD gypsum utilization potentially impaired the
·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
DOI / Corpus ID 226335113; Preparation characterization and application of red mud fly ash and desulfurized gypsum based eco friendly road base materials
A control group without saline alkali stress and desulfurized gypsum application S 0 FGD 0 was included The results showed that the low saline alkali environment S<sub>1</sub> promoted the growth of <italic>Chenopodium quinoa</italic> above ground and root and increased antioxidant enzyme activities osmotic substances root activity and yield
·Different application rate of soil structure amendment 0 150 270 and 375 kg/hm 2 with uniform desulfurized gypsum application rate t/hm 2 were used in the experiment [Results] With the application of desulfurized gypsum and structure amendments
·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
