Innovation in dewatering process of flotation tailings by study of particle interaction in colloidal environment

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• 作者：Petra Malí ; ková ; ^{petra.malikova@vsb.cz" class="auth_mail" title="E-mail the corresponding author} ; Jan Thomas ; ^{jan.thomas@vsb.cz" class="auth_mail" title="E-mail the corresponding author} ; Jitka Chromí ; ková ; ^{jitka.chromikova@vsb.cz" class="auth_mail" title="E-mail the corresponding author} ; Jiří ; Vidlá ; ř ^{jiri.vidlar@vsb.cz" class="auth_mail" title="E-mail the corresponding author} ; Jiří ; Kupka ^{jiri.kupka@vsb.cz" class="auth_mail" title="E-mail the corresponding author}
• 关键词：Dewatering ; Flocculation ; Flotation tailing ; Turbidity ; Zeta-potential
• 刊名：Perspectives in Science
• 出版年：2016
• 出版时间：March 2016
• 年：2016
• 卷：7
• 期：Complete
• 页码：171-177
• 全文大小：1666 K

文摘

Many mining operations produce tailings that dewater very slowly under self-weight consolidation. On way of reducing the water content of such tailings is by coagulation/flocculation processes (C/F processes). This paper describes a study using aluminium chloride and pre-hydrated aluminium salts as aluminium chlorohydrate – ACH (F1.2A, F1AM, FD15, FDM17H, F1S) and polyaluminium chloride – PACl (PAX-18) in dewatering of flotation tailing slurries, resulting from coal flotation in the coal preparation at the Paskov Mine (Czech Republic). Experiments were conducted at different temperature and mixing conditions to simulate full-scale conditions. The results point to a potentially technique for reducing the water content of tailings streams, thus increasing storage space, improving economic and environmental aspects.