Ecologically Friendly, Slow-Release Granular Fertilizers with Phosphogypsum
Zhantasov K. Ziyat A. Sarypbekova N. Kirgizbayeva K. Iztleuov G. Zhantasov M. Sagitova G. Aryn A.
2022HARD Publishing Company
Polish Journal of Environmental Studies
2022#31Issue 32935 - 2942 pp.
The paper provides information about phosphogypsum waste from various enterprises and how it can be used in the production of slow-release fertilizer mixtures. Such fertilizer mixes can potentially be used with different types of soil, including acidified soils. Experiments were conducted on phosphogypsum samples from the old and new dumpsites under the Taraz branch of Kazphosphate LLP. All representative samples underwent chemical, mineralogical, thermal gravimetric and differential thermal analyses, as well as Fourier-Transform Infrared (FTIR) spectroscopy and polarized optical microscopy (POM). No significant differences were found in the content of the samples. Phosphogypsum from the old dumpsite contained 87.93% gypsum (CaSO4 · 2H2 O), 9.10% quartz (SiO2), 17.55% calcium (Ca), 0.13% potassium (K), 0.35% phosphorus (P), and 0.80% phosphorus pentoxide (P2O5). Phosphogypsum from the new dumpsite contained 85.04% gypsum, 10.58% quartz (SiO2), 19.42% calcium (Ca), 0.14% potassium (K), 0.30% phosphorus (P), and 0.69% phosphorus pentoxide (P2O5). The current paper also offers a technological scheme for making a slow-release fertilizer mixture with phosphogypsum.
differential thermal analysis , granular fertilizer mixture , internal overburden , microscopy , mineral fertilizer , phosphogypsum , slow release , trace elements , vermiculite , X-ray diffraction
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Department of Chemical Technology of Inorganic Substances, M. Auezov South Kazakhstan University, Shymkent, Kazakhstan
Department of Chemistry and Chemical Technology, M. Auezov South Kazakhstan University, Shymkent, Kazakhstan
Department of Standardization, Certification and Metrology, L.N. Gumilyov, Eurasian National University, Nur-Sultan, Kazakhstan
Department of Ecology, M. Auezov South Kazakhstan University, Shymkent, Kazakhstan
Department of Oil and Gas Business, M. Auezov South Kazakhstan University, Shymkent, Kazakhstan
Department of Refining and Petrochemicals, M. Auezov South Kazakhstan University, Shymkent, Kazakhstan
Department of Chemical Technology of Inorganic Substances
Department of Chemistry and Chemical Technology
Department of Standardization
Department of Ecology
Department of Oil and Gas Business
Department of Refining and Petrochemicals
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