NADEA
NADEA.
Saline-sodic soils (i.e., electrical conductivity (EC) > 4 dS m −1 or pH > 8.5) cover ∼10% of the global land surface and deliver various ecosystem services for at least 75 …
WhatsApp: +86 18221755073
The invention discloses a method for preparing desulfurized gypsum, belonging to the technical field of flue gas desulfurization. The method comprises the following steps: taking desulfurizing …
WhatsApp: +86 18221755073
Desulphurization gypsum (DG) is the by-product of wet desulphurization of flue gas in power plant, with a large yields and low resource utilization rate. However, it is rich in CaSO …
WhatsApp: +86 18221755073
The different dominant components of fluoride-containing species at relevant pH values may experience different reactions with FGD gypsum. Fig. 4 shows the pC–pH diagram …
WhatsApp: +86 18221755073
The semi-hydrate content of desulfurized gypsum is adjusted as a natural plaster substitute for producing gypsum board, wallboard [107]. The modified treatment of desulfurized gypsum with …
WhatsApp: +86 18221755073
In 2015, the Ministry of Environment, Forest and Climate Change (MoEF&CC), India, introduced new standards for emission limits for coal power stations (Table 1). ...
WhatsApp: +86 18221755073
The study investigated the impact of red mud / desulfurized gypsum whiskers mass ratio, coupling agent dosages and calcination temperature on the Pb(II) adsorption by …
WhatsApp: +86 18221755073
What is desulfurization gypsum. Desulfurization gypsum, also known as FGD gypsum (flue gas desulfurization gypsum), is an industrial by-product gypsum obtained by desulfurization and purification of flue gas generated after …
WhatsApp: +86 18221755073
%PDF-1.7 %âãÏÓ 1 0 obj >/Metadata 1487 0 R/Pages 2 0 R/StructTreeRoot 59 0 R/ViewerPreferences 1488 0 R>> endobj 2 0 obj > endobj 3 0 obj >/MediaBox[ 0 0 595.2 ...
WhatsApp: +86 18221755073
The direct heaping of FGD in the natural environment also results in land occupancy and environmental pollution . At present, the industrial utilization of desulfurized …
WhatsApp: +86 18221755073
The obtained semi-aqueous desulfurized gypsum was the original desulfurized gypsum, which was placed in an oven at 180 °C and dehydrated for 2 h under synchronous …
WhatsApp: +86 18221755073
adsorption by desulfurized gypsum whiskers modied red mud ceramsites. The resulted optimum factor was the mass ratio of red mud / desulfurized gypsum whiskers as 2:1 with silane …
WhatsApp: +86 18221755073
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 …
WhatsApp: +86 18221755073
Influence of dicarboxylic acid modifiers on the growth habits of α-hemihydrate gypsum crystals prepared from desulfurized gypsum and its mechanisms of action ... and a …
WhatsApp: +86 18221755073
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 …
WhatsApp: +86 18221755073
In this study, calcium ferrites with different Ca : Fe atomic ratios (1 : 1, 1 : 2, 1 : 3 and 2 : 1) were prepared from Ca and Fe nitrates treated at 300, 700 and 900 °C and evaluated for ...
WhatsApp: +86 18221755073
Sintering process made red mud and desulfurized gypsum whiskers adhere evenly and closely, inducing the spilling out of crystal water to form porous structures favorable for the …
WhatsApp: +86 18221755073
It was found that the application of desulfurized gypsum could significantly increase crop yield by 91.2% ± 22.5% (average 95%), and reduce soil exchangeable sodium percentage (ESP) by …
WhatsApp: +86 18221755073
This content was downloaded from IP address 191.101.88.193 on 30/11/2019 at 01:46
WhatsApp: +86 18221755073
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 …
WhatsApp: +86 18221755073
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 …
WhatsApp: +86 18221755073
The invention discloses a device for measuring the density and pH value of desulfurized gypsum slurry, which comprises a sampling self-flowing pipeline, wherein the sampling self-flowing …
WhatsApp: +86 18221755073
*Corresponding author: [email protected] Influence of Reaction Parameters on Solid Outputs in CO 2 Mineralization of Desulfurized Gypsum Yu Dou 1,2, Wenxuan Wang 3, Chunlei Fan 4, …
WhatsApp: +86 18221755073
The study investigated the impact of red mud / desulfurized gypsum whiskers mass ratio, coupling agent dosages and calcination temperature on the Pb(II) adsorption by …
WhatsApp: +86 18221755073
The application discloses water-resistant gypsum board includes: plaster of paris, modified starch, silicone oil, a silicone oil catalyst, a ing agent, water-resistant mask paper and water. The …
WhatsApp: +86 18221755073
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 …
WhatsApp: +86 18221755073
In order to explain the growth mechanism of desulphurized gypsum whisker in hydrothermal environment and improve its high value-added utilization, calcium sulfate whisker (HH-CSWs) …
WhatsApp: +86 18221755073
The invention provides a method for solving the problem of difficult dehydration of desulfurized gypsum slurry, which comprises the following steps: s1, judging the reason of difficulty in …
WhatsApp: +86 18221755073
α-Hemihydrate gypsum (α-HH) is known as high strength gypsum, the strength of α-HHs is three times larger than that of building gypsum, in addition, α-HH has good working …
WhatsApp: +86 18221755073
Foronda and Colinet (2022) showed that the combined application of gypsum with manure was more effective than that of sole gypsum in reducing the initial soil exchangeable sodium percentage by 5% and soil pH by 0.65 …
WhatsApp: +86 18221755073