In agriculture, phosphogypsum is used as a soil conditioner to increase crop yield [20], but its utilization rate is low. In the chemical industry, it is used in the production of calcium sulfite cement [21], preparation of ammonium sulfate [22], preparation of potassium sulfate [23], and other applications, but the exploitation of the ...

Phosphogypsum Powder is a crystalline powder which is an ideal soil conditioner and a rich source of calcium and sulphur. It works as an agent to remove saline or alkaline ingredients in the soil and acts more or less …

Wu et al. found that the 0.5% calcium carbide slag, as an alkaline conditioning agent, ... Phosphogypsum as a soil fertilizer: ecotoxicity of amended soil and elutriates to bacteria, invertebrates, algae and plants. ... Treated waste can be used to improve the soil for road construction. Dredging is conducted annually throughout China to ...

Abstract Phosphogypsum (PG) is a calcium sulphate dihydrate and a by-product of the phosphate fertilizer industry. It is produced in huge quantities (300 MT/year), but only 15% of the PG produced is recycled. Phosphogypsum is valued in several sectors: road construction, building materials and agriculture.

Here, signs block a roadway in Boca Raton during a construction project in 2021. Florida is another step closer to paving its roads with phosphogypsum — a radioactive waste material from the ...

Phosphogypsum (PG) is a by-product of phosphorus fertilizer that is typically stacked near production sites. Phosphogypsum contains trace elements and naturally occurring radioactive materials which may be hazardous to the surrounding environment. Phosphogypsum stack reclamation typically involves placing a soil cap …

DOI: 10.1016/j.rineng.2023.101256 Corpus ID: 259584745; Utilizing expansive soil treated with phosphogypsum and lime in pavement construction @article{Malkawi2023UtilizingES, title={Utilizing expansive soil treated with phosphogypsum and lime in pavement construction}, author={Dima A. Husein …

The application of cement stabilized phosphogypsum soil (CSPS) in highway engineering has great economic and social benefits. ... (Pt) for brick production, soil amendment, road construction and ...

Abstract. Phosphogypsum (CaSO 4 ·2H 2 O) is heavy tonnage waste generated by binding calcium in the process of sulfuric acid decomposition of phosphate raw materials when obtaining wet-process phosphoric acid in the production of phosphate fertilizers. In appearance, it is solid fine-crystalline substance of white or gray color with …

1. Introduction. The manufacture of phosphoric acid (H 3 PO 4) through a wet acid process, using natural phosphate rock as raw material generates a major solid waste, the phosphogypsum (PG) [1].PG is highly acidic (pH 1) when initially stored, due to residual sulfuric acid, and consists mainly of calcium sulphate dehydrated (CaSO 4 ·2H …

DOI: 10.1016/J.RNREC.2019.01.029 Corpus ID: 117174436; Phosphogypsum, tropical soil and cement mixtures for asphalt pavements under wet and dry environmental conditions @article{Silva2019PhosphogypsumTS, title={Phosphogypsum, tropical soil and cement mixtures for asphalt pavements under wet and dry environmental …

Phosphogypsum (PG) is a waste (or by-product) of the production of phosphoric acid, a basic constituent in the manufacturing of modern fertilizers. The annual production of phosphogypsum in Tunisia is currently estimated to be 10 million tons. Its storage in slag in close proximity to production plants generates pollution problems; …

Phosphogypsum can be used as a soil amendment to repair sodic/saline or magnesium-affected soils, and those in low exchangeable calcium. It also tends to reduce crusting and enhance water retention properties of soil. Decreases water consumption. Reduces runoff and pollution of surface waters.

Effect of phosphogypsum on strength of lime stabilized expansive soil. J. James P. Pandian. Environmental Science. 2014. The use of phosphogypsum as an additive to lime, to enhance its performance in soil stabilization, is analyzed in this paper. Phosphogypsum is a by-product of the phosphate rock processing during….

Research is continuing on additional uses of phosphogypsum as a soil conditioner, as well as other uses, e.g., sulfur recovery, in ceramic products, as anti-skid aggregate, and as a concrete aggregate (SCA91). ... Parameter Vertical distance to aquifer Fertilizer scenarios Soil conditioner scenario Construction scenarios— humid site ...

Phosphogypsum can be used as a conditioner to improve the physical and chemical characteristics of soil, delay soil degradation, and passivate heavy metals to replace natural gypsum materials for ...

Valorization of phosphogypsum in cement-based materials: Limits and potential in eco-efficient construction. Bianca R.S. Calderón-Morales, ... Rafael García-Tenório, in Journal of Building Engineering, 2021. Abstract. Phosphogypsum (PG) is a type of synthetic gypsum generated during the production of phosphoric acid. Each ton of phosphoric …

Soil nutrients losses, such as Ca, magnesium (Mg), potassium (K), and nitrogen (N) has been released by PG (Brien and Sumner, 2008) and gypsum (Alva and Gascho, 1991) applications. Salinity is a growing threat to food security in arid and semiarid regions. Phosphogypsum is an affordable saline soil amendment.

Road Construction. Roof Tiles. Soil Conditioner. ... Based on Product Types the Market is categorized into Below types that held the largest Phosphogypsum market share In 2023. Soil Amendment.

Phosphogypsum (PG) is a by-product generated from the phosphorus fertilizer industry (phosphoric acid production). PG is similar to natural gypsum, but there are some differences, of which it contains some impurities such as water-soluble phosphate (P 2 O 5), water-soluble fluoride (F −) and P 2 O 5 substituted in the gypsum crystal …

Road Construction. Roof Tiles. Soil Conditioner. ... Based on Product Types the Market is categorized into Below types that held the largest Phosphogypsum market share In 2024. Soil Amendment.

Plots were on bare tilled soil with 8% to 12% slopes. The soil treatments consisted of a single 5 Mg ha-1 surface application of byproduct phosphogypsum (PG), a single 20 kg ha-1 surface application of anionic polyacrylamide (PAM), a combined amendment (PAM+PG) with the same rates as above, and an unamended soil (control).

Phosphogypsum (PG) is a major hazardous by-product of the phosphate industry. The whole world is facing the challenge of increasing stockpiles of PG, which significantly affect safety and the ...

The effects of CMC on the soil such as bonding, moisture conditioning, particle dispersion and aggregation may affect the effectiveness of PG and lime in the improvement of tunnel muck. Additionally, the dosage of CMC utilized during construction may vary based on soil properties or moisture content [26], [27]. Therefore, it is crucial …

When the number of wetting-drying cycles was lower than the 6, phosphogypsum showed a significant role in the reduction of C M loss at the same number of wetting-drying cycles. For instance, at the 4th cycle, C M loss significantly decreased with increase in the phosphogypsum content. This observation indicated …

Road Construction; Roof Tiles; Soil Conditioner; ... Based on Product Types the Market is categorized into Below types that held the largest Phosphogypsum market share In 2023. Soil Amendment;

Phosphogypsum Market Latest Research Report analyses the growth opportunities and trends in the markets development till 2031. ... Road Construction, Roof Tiles, Soil Conditioner, Others], by Type ...

Phosphogypsum is the most significant industrial solid waste in the world. Phosphogypsum has a complex composition and its traditional storage methods occupy large areas of land and also damage the environment. Currently, phosphogypsum is mainly used for the direct preparation of construction materials and chemical auxiliary …

In places where phosphogypsum accumulates, heavy metals undergo horizontal and vertical redistribution in the soil profile due to leaching from dumps and precipitation, which can lead to their subsequent migration to aquifers [43,44]. Therefore, expanding the possibilities of using phosphogypsum in an environmentally friendly …

Abstract. Phosphogypsum (PG), the main industrial by-product of phosphate fertilizer industry, primarily consists of calcium sulfate dihydrate. However, it contains various impurities with variable quantities depending on the origin of the phosphate rock. These impurities can restrict the reuse of phosphogypsum as a secondary …