— Gypsum is widely used in the construction sector, and its worldwide consumption has been increasing for several decades. Depending on the lifetime of the used gypsum products, an increase of gypsum in construction and demolition waste follows. Especially against the background of a circular economy, the recycling of waste gypsum …

Established in 2010, GLOBAL GYPSUM BOARD CO LLC is the first to operate gypsum board and value added plaster plants in the Sultanate of Oman, with production …

 — In order to achieve the resourceful, large-scale and high-value utilization of bulk industrial solid wastes such as flue gas desulfurization gypsum (FGDG), fly ash (FA) and ground blast furnace slag (GGBS), and to reduce the dosage of cementitious materials, orthogonal experimental methods were used to prepare composite cementitious …

 — Of Iran's five gypsum wallboard producers, only Sadaf Gypsum, which operates the 3Mm2/yr Bastak gypsum wallboard plant in Hormozgan Province, also appears as a natural gypsum supplier in the Global Gypsum Directory 2022. It mines gypsum at the site of its plant, near Iran's Gulf coast. ... Oman. Gypsum production: …

Long-term use of gypsum or using rates higher than given in the criteria can have adverse impacts on soil or plant systems. This can include: • Where gypsum-derived products are alkaline due to impurities, raising the soil pH to a level that is detrimental to plant growth or nutrient balance

 — Achieving high nutrient use efficiency (NUE) and high crop productivity has become a challenge with increased global demand for food, depletion of natural resources, and deterioration of environmental conditions. Higher NUE by plants could reduce fertilizer input costs, decrease the rate of nutrient losses, and enhance crop yields. Nitrogen and …

Flue gas desulfurization (FGD) gypsum, a coal combustion by-product, can be used to decrease water-extractable soil P, thereby lowering the potential for P export to surface waters. This decrease results from a conversion of loosely bound inorganic P (IP) which is readily desorbable to water, to less soluble Al- and Fe-bound IP and, to a lesser extent, …

Salalah International Gypsum Co. L.L.C., or SIG in short, is the leading natural gypsum producer & exporter from Sultanate of Oman. We are located at Salalah in the Dhofar …

 — About Phosphor-Gypsum: Phosphorus is a mineral critical to all life on Earth. As a requirement of all biological beings, it is a cornerstone of nutrition for plants, animals, and people. Phosphogypsum is a waste by-product from the processing of phosphate rock in plants producing phosphoric acid and phosphate fertilizers, such as superphosphate.

 — The FT-IR (Fig. 1 a) and XRD (Fig. 1 b) were used to analyze the composition and purity of the FGD gypsum.Table S3 showed the most characteristic FT-IR bands of the FGD gypsum reported in the literature. The doublet at 3554 cm −1 and 3405 cm −1 with a weak shoulder at 3243 cm −1 was assigned for O–H stretching. Peaks at 1685 cm −1 …

GMC is one of largest manufacturer of Gypsum in GCC sourcing most of raw materials from Oman itself. GMC also engages in production of Limestone, Marbles.

 — Field application of gypsum (CaSO4 × 2H2O) is a tool to decrease phosphorus (P) load to watercourses. Effects of gypsum application (4 tons ha-1) on soil and crop composition were monitored up to four years after the treatment in the Savijoki catchment, southwestern Finland. Eleven amended fields and 17 control fields were …

 — The pilot area (81.3 km 2) consisted of three consecutive reaches of the River Savijoki (Table 1, Fig. 1).The upper reaches (15.0 km 2) were left as the control area where gypsum was not used.The treatment area (66.3 km 2) was located immediately downstream of the control area and divided into an upper gypsum area (17.7 km 2) and a larger …

 — The Indian cement manufacturers are likely to face serious challenges regarding gypsum availability and cost in the near future. Ramachandran, Chief Executive Officer, Zawawi Minerals LLC, Sultanate of Oman, discusses how identifying and ensuring a consistent supply of gypsum will become an on-going challenge. The Indian cement …

 — In the building materials, the industrial byproduct gypsum is mainly used in the production of cement retarders, gypsum slats, gypsum bricks, gypsum blocks, etc. In recent years, new gypsum products, such as self-leveling gypsum, α-type high-strength gypsum, ii-type anhydrous gypsum, and calcium sulfate whiskers, have also been …

 — In addition, gypsum can help reduce the amount of phosphorus that enters waterways. Phosphorus is an essential nutrient for plant growth, but excess phosphorus can lead to harmful algal blooms in waterways. Gypsum helps reduce the amount of phosphorus that is available for plant uptake, which can help prevent harmful algal blooms.

 — Gypsum (CaSO4∙2H2O) amendment can reduce phosphorus (P) export from agricultural fields and protect water quality. Past studies have examined the impact of gypsum application rate, but limited research has been conducted to assess the effect of the time interval between gypsum application and P fertilization on treatment …

SIG is the leading natural gypsum producer & exporter from Sultanate of Oman. We are located at Salalah in the Dhofar governorate, which is the southernmost part of Oman. …

Gypsum production plants from Grenzebach: for cutting-edge building materials Gypsum; a building material that turns interior design dreams into reality: From free-standing to load-bearing walls, or a stunning surface finish, gypsum in its many facets as a building material gives room designs their individual flair.

 — 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, …

 — Phosphogypsum is an industrial byproduct from the wet preparation of phosphoric acid. Phosphorus building gypsum can be obtained from phosphogypsum after high-thermal dehydration. This study aimed to analyze the influence of ball milling with different parameters on the strength of phosphorus building gypsum. In this paper, the …

 — All experimental plots, including the control, received the same doses of phosphorus (21.6 kg P ha −1 as triple superphosphate), nitrogen (115 kg N ha −1 as Urea), and potassium (120 kg K ha −1 as KCl). The quantity of NPK applied was determined in accordance with the results of the initial soil analysis (Table 1, Table 2).Only the plots …

 — Phosphogypsum contains soluble and insoluble elements and impurities; it is composed mainly of gypsum (CaSO 4 ·H 2 O), with calcium, sulphur, and water being the major constituents (Table 1). Other elements including phosphorus, fluorine, magnesium, and potassium are also present at variable concentrations.

 — It is necessary to consider the dual problems of poor performance and low production efficiency that stem from the highly utilised water/gypsum ratios in the traditional preparation of phosphorus building gypsum (PBG)-based building materials. These problems cannot be easily overcome because that PBG tends to agglomerate at low …

The role of phosphorus (P) is critical in plant metabolism which plays an important role in energy transfer, respiration and photosynthesis. It is a key structural component of ... Between the two common sources of S, gypsum is available in India and is a cheaper source of S which may be used for oilseed crops. Rathore et al. (2015)

 — Soil salinization is a limiting factor affecting food security and land use efficiency, and it has become one of the major environmental and socio-economic issues worldwide (Cui et al., 2021).According to the statistics, up to the present date, >424 million hectares of topsoil (0–30 cm) and 833 million hectares of subsoil (30–100 cm) are …

The Mines has a reserve of 13 million tons of mineable gypsum. Al Jood has a permanent stockyard inside the port of Salalah. Al Jood is the 5th largest exporter of natural …

 — The Influences of soluble phosphorus on hydration process and mechanical properties of hemihydrate gypsum under deep retarding condition. Materials 15 (7), 2680 (2022).

 — The industrial byproduct gypsum is a general term for byproducts discharged from industrial production with calcium sulfate as the main ingredient. Due to the high number of impurities and production volume, the industrial byproduct gypsum is underutilized, leading to serious environmental problems. At present, only …

Keywords Gypsum · Soil hydrology · Phosphorus leaching · Manure 1 Introduction Phosphorus (P) is a critical plant nutrient but also a key contributor to the eutrophication of aquatic eco-systems, resulting in water quality impairment, the proliferation of harmful algal blooms and the for-mation of hypoxic zones. For example, the so-called