Fosfogipso utilizavimo Lietuvoje problemos
There are no mines in Lithuania but there are fertilizer waste dumps. For many years phosphor fertilizer has been made in Kėdainiai chemical plant in the central part of Lithuania using apatite as a raw material which is brought from Kola peninsula. During the production of 1 t of phosphoric acid 4,...
| Main Authors: | , , |
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| Format: | Article in Journal/Newspaper |
| Language: | Lithuanian English |
| Published: |
1998
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| Subjects: | |
| Online Access: | http://ktu.lvb.lt/KTU:ELABAPDB2357123&prefLang=en_US |
| Summary: | There are no mines in Lithuania but there are fertilizer waste dumps. For many years phosphor fertilizer has been made in Kėdainiai chemical plant in the central part of Lithuania using apatite as a raw material which is brought from Kola peninsula. During the production of 1 t of phosphoric acid 4,5 t of phosphogypsum is produced. For many years phosphogypsum has been transported into the dump in which more than 10 mln tones of phosphogypsum have been accumulated. Phosphogypsum includes volatile fluor and phosphoric acid. Ecological polution of the waste materials is obvious, however, according to Lithuanian laws the plant does not pay any fee for the damage. Scientists of Lithuania have prepared several technologies concerning the utilisation and remaking of the phosphogypsum wastes into building materials and products. The report it based on the problems of their characteristics and realization. |
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