Biotechnological magnesite enrichment using a carbonate dissolving microorganism, Lactococcus sp.

Yanmis D., Orhan F., GÜLLÜCE M., Sahin F.

INTERNATIONAL JOURNAL OF MINERAL PROCESSING, cilt.144, ss.21-25, 2015 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 144
  • Basım Tarihi: 2015
  • Doi Numarası: 10.1016/j.minpro.2015.09.014
  • Dergi Adı: INTERNATIONAL JOURNAL OF MINERAL PROCESSING
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.21-25
  • Anahtar Kelimeler: Decalcification, Lactococcus spp., Magnesite, DISSOLUTION KINETICS, NATURAL MAGNESITE, OXIDIZING BACTERIA, ACID CONCENTRATION, EMITTERS, TAILINGS
  • Atatürk Üniversitesi Adresli: Evet

Özet

The usage of magnesite strictly depends on its impurities. CaCO3 is the major impurity in magnesite ores. The amount of CaCO3 should be less than 1% for the quality and economical use of magnesite ores. Some magnesite ores in Turkey cannot be used due to high amount of CaCO3 (>= 3%). This study aims to investigate an alternative biotechnological method for decalcification of magnesite ores by using a microorganism (Lactococcus spp.). The amount of CaCO3 was reduced from 2.94% to 0.57%. This reduction improved the quality of magnesite ore by approximately 80.61%. The results showed that Lactococcus spp. can be used safely in industrial decalcification of magnesite ore as the microorganism has no pathogenic properties. (C) 2015 Published by Elsevier B.V.