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The environmental impacts of FGD gypsum are mostly positive, with only a few negative results observed, even when applied at rates representing cumulative 80-year applications. Thus, FGD gypsum, if properly managed, seems to represent an important potential input into agricultural systems. ... In-season Effect of Flue Gas Desulfurization …
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Facing climate change: Environmental evaluation of gypsum-like CO 2 utilization Mg-based materials. Y J Liu 1, L Wang 1, Y W Kang 1, J R Fang 1 and J Q Liu 1,2. Published under licence by IOP Publishing Ltd IOP Conference Series: Earth and Environmental Science, Volume 612, The 6th International Conference on Water …
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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 …
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Injecting gypsum (calcium sulfate) into irrigation water increases salinity and calcium. As the sodium is replaced, water lower in calcium and salinity can be used. Gypsum is the most common material used to supply calcium for sodic soil reclamation. The "gypsum requirement" is the amount of gypsum needed to reclaim the soil to a specified ...
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The different moisture contents of the investigated gypsum types (natural gypsum 1%, recycled gypsum 3–5%, and FGD gypsum 8–10%) affect the energy …
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Life Cycle Assessment tools — including those employed in analyzing life-cycle impacts of gypsum products — use environmental, costing and human health criteria to compare building materials and building systems. Life cycle tools typically take two forms: They examine the financial life-cost of a material or system or appraise the environmental …
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The different moisture contents of the investigated gypsum types (natural gypsum 1%, recycled gypsum 3–5%, and FGD gypsum 8–10%) affect the energy consumption of the processing and, …
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A pot experiment was undertaken, to evaluate the effect of Phosphogypsum (PG) and Gypsum (G), to remove salts, nutrients and trace elements in leached water from saline and saline-sodic soils. In order to determine the efficiency and safety of these amendments, as an affordable strategy, for overcoming salinity and sodicity stress.
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XRD, SEM and elemental characterization of FGD gypsum. X-ray diffraction analysis revealed that the characteristic peaks at 2θ value of 11.8, 20.8 and 23.5 (Fig. 2a) of the FGD gypsum 1 suggested ...
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For gypsum drywall, the biggest opportunity to work toward lower-carbon is to reduce energy use at the drywall manufacturing site. The biggest opportunity to work toward ...
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Artificial waste dumps with ore debris are widely distributed in mines and lead to complex groundwater compositions, which affect slope stability. Soil salinization with calcium sulfate is prominent in a gypsum waste dump in southwestern Sichuan, China. To identify the interaction between the soil and calcium sulfate at this site, this paper …
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We study how variations of selected parameters would affect the environmental impacts associated with gypsum plasterboard over its life cycle. Both …
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Gypsum use for soil remediation can pose an added environmental hazard. Abstract. ... Therefore, the present study was designed to examine the effect of gypsum on plant growth in soils polluted by a copper smelter. We grew perennial ryegrass on untreated and gypsum-treated soils (at a dose of 3% by weight) under laboratory conditions. We …
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As with all construction materials, gypsum panel products must be installed and stored under specific environmental conditions. Failure to comply with basic application and maintenance requirements may limit the service life of the material.
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The use of recycled gypsum, which is derived from gypsum waste plasterboard, for ground improvement has recently been initiated in Japan and is not widespread around the world. As such, it is essential to explore the effect of environmental conditions on the performance and durability of soil stabilized with recycled gypsum.
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Later, they also analyzed the influence of gypsum waste on the environmental impacts of concrete preparation (Suarez et al., 2018). The life cycle analysis of the recycling gypsum plasterboard in the EU-27 context was also studied (Jimenez-Rivero et al., 2016). ... The Spanish building crisis and its effect in the gypsum quarry …
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It can be seen that the effect of the ion is the most significant. (2) In the environment of composite salt solution, ions will inhibit the sagging deformation of desulfurization gypsum. Specifically, in the compound salt solution environment of and the deformation values are 0.605 mm and 0.596 mm respectively.
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Flue gas desulfurization (FGD) gypsum is a byproduct of the combustion of coal, used for electricity generation. This material is generated during the process of scrubbing flue gases from power plants to remove sulfur dioxide emissions, which contribute to acid rain and other environmental problems.
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Unlike lime, gypsum does not affect soil pH, making it suitable for use in a variety of soil types and conditions. ... Sustainability and Environmental Impact. Gypsum is an environmentally friendly soil amendment. As a natural mineral, it is mined and processed with minimal environmental impact.
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The ideal conditions for installation, finishing, and decorating of gypsum materials are closely matched to intended occupancy environments. Anything too hot, too cold, too …
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Thus, there is a need to increase food production on existing farmland while improving soil health and water quality. We report the effect of two conservation practices, flue-gas desulfurization (FGD) gypsum …
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Different types of gypsum drywall had a significant effect on fungal sporulation and growth, yet the physical and chemical properties of gypsum drywall, ... Fallah P, Robbins C. Controlled study of mold growth and cleaning procedure on treated and untreated wet gypsum wallboard in an indoor environment. J Occup Environ Hyg. …
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Storage and landfill are the main ways to dispose of by-product gypsum (see Fig. 2), and discard is also a common way.In Turkey, the PG produced per year is direct discarded in landfills, rivers and ponds (Degirmenci et al., 2007).However, there are some harmful substances in the waste gypsum, which pollutes the environment and causes …
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Gypsum panels should not be installed where they will be subject to direct exposure to water or continuous high humidity conditions. As with all construction materials, gypsum …
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The ongoing global climate change and the associated environmental degradation pose a threat to Europe and the rest of the world. Raw materials and energy are required to produce building materials, which are used for construction purposes. Resulting buildings and structures generate waste during construction, operation, and …
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@article{Pu2021EvaluationOE, title={Evaluation of engineering properties and environmental effect of recycled gypsum stabilized soil in geotechnical engineering: A comprehensive review}, author={Shaoyun Pu and Zhiduo Zhu and Wangwen Huo}, journal={Resources Conservation and Recycling}, year={2021}, …
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about specific gene-environment interactions. • NIEHS is also interested in learning more about environmental exposures, such as air pollution and . related changes at the cellular level, that affect brain development. For more information on the National Institute of Environmental Health Sciences, go to
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Based on the results of this evaluation, the use of FGD gypsum can provide benefits to agricultural fields while remaining protective of human health and the environment. EPA's evaluation focused on potential environmental impacts unique to FGD gypsum. However, risks can also result from the mismanagement of other types of …
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1. Introduction. Phosphogypsum (PG) is an industrial waste derived from the wet process for the manufacture of phosphorus fertilizer, during which the natural phosphate rock ore reacts with sulfuric acid [[1], [2], [3]]: (1.1) Ca 5 (PO 4) 3 F + 5 H 2 SO 4 + 10 H 2 O → 3 H 3 PO 4 + 5 C a SO 4 ⋅ 2 H 2 O + HFApproximately 4–5 tons of PG are …
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The most effective way to tackle subsurface acidity is to physically mix a agent into the acid layers. As top-dressing lime and waiting for it to move deeper of its own accord takes years, and where …
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