Results 171 to 180 of about 7,633 (210)

Comparison of the stabilized waste soil properties and stabilization mechanism of phosphogypsum-fly ash-steel slag based cement versus Portland cement. [PDF]

PLoS One
Guo J, Xu X, Song X, Wei J, Shi W, Xia Y.   +5 more
europepmc   +1 more source

Comparative sustainability investigation on a novel industrial-waste-based soil stabilizer and cement based on life cycle assessment. [PDF]

Sci Rep
Luo J, Yu F, Chen X, Li S.
europepmc   +1 more source

Study on the Extraction of Rare Earth Elements (REEs) from Phosphogypsum Using Gluconobacter oxydans Culture Solution. [PDF]

Molecules
Zhang J, Qi Z, He Z, Zhang X, Zhang Q, Su X.   +5 more
europepmc   +1 more source

Determining the Sulfate Content in Phosphogypsum and Cement-Based Materials Based on Conductivity Titration. [PDF]

Materials (Basel)
Wang D, Zhang J, Zhou J, Sun Y, Ren J, Li X, Liu Z.   +6 more
europepmc   +1 more source

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Radiological impacts of phosphogypsum

Journal of Environmental Management, 2011
This study was carried out to assess the radiological impact of Syrian phosphogypsum (PG) piles in the compartments of the surrounding ecosystem. Estimating the distribution of naturally occurring radionuclides (i.e. (226)Ra, (238)U, (232)Th, (210)Po and (210)Pb) in the raw materials, product and by-product of the Syrian phosphate fertilizer industry ...
Lina, Al Attar, Mohammad, Al-Oudat, Salwa, Kanakri, Youssef, Budeir, Hussam, Khalily, Ahmad, Al Hamwi   +5 more
openaire   +2 more sources

Determination of uranium in phosphogypsum

Talanta, 1984
A method for determination of uranium in phosphogypsum is based on extraction of uranium from phosphoric acid in which hydration transformations of calcium sulphate hydrates have occurred. The uranium is extracted with a kerosene solution of a mixture of mono- and dinonylphenylphosphoric acids, then stripped with concentrated phosphoric acid, and ...
H, Górecka, H, Górecki
openaire   +2 more sources

Radon Emanation Coefficients for Phosphogypsum

Health Physics, 1995
Phosphogypsum is a by-product of the phosphate fertilizer industry which is stockpiled in large quantities world-wide. Phosphogypsum consists mainly of dihydrate gypsum (CaSO42H2O) but also contains elevated concentrations of 226Ra and other inorganic species which originate from the processing of phosphate rock. 222Rn gas is the first decay product of
P M, Rutherford, M J, Dudas, J M, Arocena   +2 more
openaire   +2 more sources

A Radiological Evaluation of Phosphogypsum

Health Physics, 1991
Phosphogypsum is the by-product resulting from phosphoric acid or phosphate fertilizer production. The phosphate are used in these chemical processes contains the naturally occurring radioactive material U and all its subsequent decay products. During processing, the U generally remains in the phosphoric acid product, while the daughter, 226Ra, tends ...
T P, Laiche, L M, Scott
openaire   +2 more sources

Fly Ash-Calcined Phosphogypsum Cementitous Materials with Different Thermally Treated Phosphogypsum

Advanced Materials Research, 2011
Experiments were performed to investigate the properties of fly ash-calcined phosphogypsum (PG) cementitous materials with PG different thermally treated, including being calcined at 135°C, 430°C and 800°C separately. Durability of the cementitous materials was investigated by determination of mass loss of binders immersed in water for different ...
Min Yang, Qing Chen Sun
openaire   +1 more source

Potential uses of phosphogypsum: A review

Journal of Environmental Science and Health, Part A, 2022
Phosphogypsum (PG) is a by-product of the phosphate fertilizer industry that is produced during the phosphoric acid production process. Annual global PG production ranges between 100 to 300 Mt, with only 15% of that utilized while the rest is usually placed on large dumps with potential serious human and environmental impacts.
Maria Pliaka, Georgios Gaidajis
openaire   +2 more sources