Akademik Veri Yönetim Sistemi
17. Intermational Mineral Processing Symposium, İstanbul, Türkiye, 15 - 17 Aralık 2022, cilt.1, ss.869-874
Görgü (Malatya) zinc-lead deposit is one of the
important metallic ore deposits operated in Turkey. The ore is enriched by
gravimetric and flotation methods and the wastes are stored in waste ponds. The
chemical and mineralogical analyzes of the fresh waste samples were determined
and AMD potential of the samples was determined by static AMD tests. Chemical
and mineralogical analyzes have shown that the raw waste is rich in carbonate,
but low in pyritic (or sulphitic) sulfur content. Paste pH of the waste was measured
as 8.01 and was found to be quite high to generate AMD. Standard and modified
Acid Base Accounting (ABA) tests were performed and Net Neutralization
Potential (NNP) values were calculated as 641.25 and 242.031 kg CaCO3/ton,
respectively. Since NNP >> 10, it is concluded that the waste has no AMD
generation potential. B.C. Research Initial test results showed that the acid
consumption of the waste (372.89 kg H2SO4/ton ore) was much higher than the
acid production (4.56 kg H2SO4/ton ore). Because a pH of 8.77 was obtained in
NAG test, it was concluded that the waste did not produce net acid as pH
remained above 7.0. All of the studied static AMD test results showed that the
waste did not have AMD generation potential.