Phosphate Amendments for the Inhibition of Acid Mine Drainage Generated from Sidi Kamber Tailings Facility

ENP Engineering Science Journal

article

Amira Merchichi¹  Malek Ould Hamou¹  MostafaBenzaazoua²  Farid Aghilasse Mansour¹  Nabil Babahoum³  Hakim Rabia¹ 

[1] Ecole Nationale Polytechnique;University of Quebec at Abitibi-Temiscamingue;SONATRACH

关键词: Sidi Kamber mine;    Acid Mine Drainage (AMD);    Phosphate material;    Mining tailings;    humidity cell leachingtest;    Neutralization;   

DOI  :  10.53907/enpesj.v2i1.67

学科分类：社会科学、人文和艺术（综合）

来源: Ecole Nationale Polytechnique

【 摘 要 】

The aim of this paper was to evaluate the efficiency of phosphates product and by-products from the DjebelOnk mine for the control of acidic mine drainage generated by exposure of Sidi Kamber mine tailings to climaticconditions. Kinetic tests in humidity cells were carried out according to the modified ASTM standard, was used toinvestigate the geochemical behaviour of the Sidi Kamber tailings mixed with phosphate materials (phosphatic limestonewastes, raw low grade phosphate ore and phosphate mine tailings) after being charcaterized. All amendmentcompositions led to an increase of the pH of the leachate from approximately 3 to circum-neutral values. Humidity cellsexperiments indicated that the materials were adequate to immobilize Pb, Zn, Cu and Fe by about 99% and prevent theirrelease from the tailings. The tests have also shown that the metals concentrations within the leachate are lower than thelimits allowed by Algerian legislation for industrial liquid effluents. Among the tested material amendments, PLW wasmore effective than other products in immobilizing metals. The result are most probably related to their Ca‑carbonatecontent and/or adsorption capacity.

【 授权许可】

CC BY-NC-SA