Results 41 to 50 of about 7,633 (210)

Recycling high volume phosphogypsum in highway subgrade: Harmless, testing, and application [PDF]

E3S Web of Conferences
Based on solidification/stabilization theory, a self-made curing agent was used to stabilize the phosphogypsum, and a high-volume phosphogypsum subgrade filler was prepared.
Shen Jun, Cheng Yin, Li Lin, Liu Xuexin, Zou Dongbo, Yuan Chaoyue   +5 more
doaj   +1 more source

Investigating the novel process for thorough removal of eutectic phosphate impurities from phosphogypsum

Journal of Materials Research and Technology, 2023
Phosphogypsum is the major component in solid waste of phosphoric acid manufacturing. After purification, phosphogypsum can be used as an alternative material to natural gypsum.
Xinfeng Lv, Lan Xiang
doaj   +1 more source

Regulating the mobility of Cd, Cu and Pb in an acid soil with amendments of phosphogypsum, sugar foam, and phosphoric rock [PDF]

, 2006
11 pages, figures, and tables statistics.When acid soil has been contaminated by metals as a result of industrial discharges, accidental spills, or acid mine drainage it may be desirable to retain the metals in the soil rather than allow them to leach ...
Drude, Natascha, Erberich, Michael, Herbert, Christian, Möller, Martin, Okuda, Jun, Plampe, Felix A., Schulte, Björn, Steinschulte, Alexander Adonis   +7 more
core   +1 more source

Differential Shear Resistance of a Mixed Substrate of Gangue-Phosphogypsum-Mushroom Residue and Ryegrass Rhizosphere Complex

Shuitu baochi tongbao, 2023
[Objective] The effects of ryegrass growth on the physical properties and shear resistance of a mixed substrate were studied in order to provide a scientific basis for the rapid restoration of coal gangue hill vegetation and for the prevention of soil ...
Zhao Ju, Liu Fang, Zhu Jian, Liu Yuansheng, Chen Zuyong   +4 more
doaj   +1 more source

Multifunctional Tailoring of Fertilizer Composites Directly Derived From Phosphate Rock

Advanced Science, EarlyView.
A novel phosphorus‑sulfur mixed acid with urea (PSU) activation system converts low‑grade phosphate rock (LPR) into multifunctional fertilizer composites (MFCs). MFCs feature porous structures, high nutrient‑activation efficiency, superior slow‑release, and enhanced crop growth, offering a sustainable solution for integrated nutrient management and ...
Zenglian Qi, Jianchao Wang, Lulu Chen, Zhenya Lu, Guodong Wang, Hang Ma, Cuihong Hou, Xinxin Wang, Wenqi Ma, Changzhou Wei, Jianbo Shen, Fusuo Zhang, Minghao Zhuang, Chengdong Huang   +13 more
wiley   +1 more source

Trois traitements recommandés pour la culture de l'arachide au Sénégal : dénématisation, inoculation des semences par rhizobiums sélectionnés et apport de phosphogypse [PDF]

, 1991
Les nématodes parasitant l'arachide entraînent des pertes de rendement sévères et parallèlement gênent la nodulation naturelle. Sur sol dénématisé (injection de 9 kg/ha de DBCP/ha) un complément de calcium, soufre et azote à la fumure vulgarisée de 150 ...
Dhery, M., Dreyfus, Bernard
core   +2 more sources

Radioactive impact in sediments from an estuarine system affected by industrial wastes releases [PDF]

, 2002
A big fertilizer industrial complex and a vast extension of phosphogypsum piles (12 km2), sited in the estuary formed by the Odiel and Tinto river mouths (southwest of Spain), are producing an unambiguous radioactive impact in their surrounding aquatic ...
Bolívar Raya, Juan Pedro, García-Tenorio García-Balmaseda, Rafael, Más Balbuena, José Luis, Vaca Galán, Federico   +3 more
core  

Characterization and Modeling of Industrial Phosphoric Acids' Rheological Behavior: Impact of Magnesium Monoxide on Viscosity

Asia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT This study investigates the rheological behavior of industrial phosphoric acids (H3PO4) produced at the JORF–LASFAR phosphoric plant in Morocco, with P2O5 concentrations of 18%, 29%, 42%, and 54%. Rheological measurements were performed using a rotary cylinder rheometer over a shear rate range of 1–1000 s−1.
Hamza Belbsir, Abderrahim Benzaouia, Said Kounbach, Abdelghani Laamaoui, Said Laassiri, Khalil El‐Hami, Rachid Benhida   +6 more
wiley   +1 more source

Utilization of Waste Materials Using the Müller–Kühne Process—A Life Cycle Inventory Study

Chemie Ingenieur Technik, EarlyView.
This study presents a Life Cycle Inventory of the Müller–Kühne process (MKP), which converts gypsum waste into sulfuric acid and cement clinker. The MKP outperforms conventional cement production regarding material yield, though its specific energy demand is higher. Consequently, potentials for circular gypsum waste utilization are discussed.
Leon Kassner, Manfred Renner, Peter Fröhlich, Martin Bertau, Philip Biessey   +4 more
wiley   +1 more source

Research progress on resource utilization of phosphogypsum

Materials Research Express
Phosphogypsum is a by-product generated during wet phosphoric acid production. The massive accumulation of phosphogypsum has caused serious environmental issues, making the development of innovative and comprehensive utilization methods critically ...
Mingyue Wu, Junsheng Bai, Mingyi Cui, Dongyu Xu, Huaicheng Chen, Yuli Cui   +5 more
doaj   +1 more source