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Use of waste pyrite as an alternative to gypsum for alkaline soil amelioration
Date
2015-05-04
Author
TOZSİN, Gülşen
Arol, Ali İhsan
ÇAYCI, GÖKHAN
Metadata
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The reclamation of alkaline soils is of great interest especially in arid and semi-arid climatic regions of the world. The aim of this study was to investigate the application of pyrite from the waste materials of a copper concentration plant as an alternative to gypsum application for alkaline soil amelioration. The second aim was to assess heavy metal contamination. Waste pyrite (FeS2) obtained from a copper concentration plant and pure gypsum (CaSO4 center dot 2H(2)O) were added to soil within the columns and pots. Column-leaching tests were performed to determine the effectiveness of waste pyrite application on alkaline soil characteristics as compared with gypsum application. Greenhouse pot experiments were also conducted for evaluating the effects of these soil additives on plant growth. The results indicated that the pH and exchangeable sodium percentage of the experimental soil significantly decreased (p < 0.01) upon waste pyrite and gypsum applications. While waste pyrite was very effective in increasing the levels of essential plant micro-nutrients and dry matter weight of wheat, it did not cause pollution or toxicological problems in the soil. The results of this study clearly indicated that waste pyrite is a good ameliorating agent and an alternative to gypsum in reclamation of alkaline soils.
Subject Keywords
Management of Technology and Innovation
,
Earth-Surface Processes
,
Geotechnical Engineering and Engineering Geology
,
Geology
URI
https://hdl.handle.net/11511/41231
Journal
INTERNATIONAL JOURNAL OF MINING RECLAMATION AND ENVIRONMENT
DOI
https://doi.org/10.1080/17480930.2013.873257
Collections
Department of Mining Engineering, Article
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G. TOZSİN, A. İ. Arol, and G. ÇAYCI, “Use of waste pyrite as an alternative to gypsum for alkaline soil amelioration,”
INTERNATIONAL JOURNAL OF MINING RECLAMATION AND ENVIRONMENT
, pp. 169–177, 2015, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/41231.