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Title | Ecological properties of phosphogypsum and its products: biogeosystem technique for management |
Authors |
Chernysh, Yelyzaveta Yuriivna
Chubur, Viktoriia Serhiivna Haneklaus, N. Roubik, H. |
ORCID |
http://orcid.org/0000-0003-4103-4306 http://orcid.org/0000-0003-4871-1162 |
Keywords |
фосфогіпс забруднення навколишнього середовища хімічні відходи промислові відходи фосфогіпсу phosphogypsum environmental pollution chemical waste industrial waste of phosphogypsum |
Type | Conference Papers |
Date of Issue | 2022 |
URI | https://essuir.sumdu.edu.ua/handle/123456789/90173 |
Publisher | Sumy State University |
License | In Copyright |
Citation | Chernysh Y. Y., Chubur V. S., Haneklaus N., Roubik H. Ecological properties of phosphogypsum and its products: biogeosystem technique for management // Хімічна технологія: наука, економіка та виробництво : збірник наукових праць VI Міжнародної науково-практичної конференції, м. Шостка, 23-25 листопада 2022 р. / гол. ред. Р. В. Закусило. Суми : Сумський державний університет, 2022. С. 97-102. |
Abstract |
In dried form, phosphogypsum is a fine powder, which becomes
loose and prone to lump formation, and in the case of long-term storage in a fixed layer,
it becomes caked. Hundreds of millions of tons of industrial waste phosphogypsum are
available in five regions of Ukraine: Sumy, Kharkiv, Dnepropetrovsk, Rivne, and
Cherkassy. The main source of environmental pollution in the areas of mineral fertilizer
production (in Ukraine, these are Armyansk, Sumy, and Rivne) is phosphogypsum. The
sulfuric acid method of opening the apatite concentrate produces 4,3-5,8 tons of
phosphogypsum per 1 ton of H3PO4, depending on the raw materials and the adopted
technology. At dry storage of phosphogypsum (without preliminary neutralization),
about 10 g of fluorine per 1 ton of phosphogypsum is released into the gas phase, and
approximately 10% of fluorine is washed out by atmospheric precipitation.
Phosphogypsum should be stored in specially equipped storages isolated from water
bodies. Phosphogypsum has to be neutralized with lime milk before it is placed in the
storage facility [1]. Conclusions. The issue of phosphogypsum utilization is worth reconsidering by
improving the technical solutions and technologies of phosphogypsum disposal to use
beneficial constituents of potential value in the life cycle. Regulation of the use of
chemical waste needs to be revised, taking the maximum potential of the material, with
environmentally friendly cycles closing in phosphogypsum biogeosystem management. |
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