Evaluation of geochemical behaviour of flooded cemented paste backfill of sulphide-rich tailings by dynamic-tank leaching test

被引：15
|
作者：
Yilmaz, Tekin [1 ]
Ercikdi, Bayram [2 ]
Deveci, Haci [2 ]
机构：
[1] Abdullah Gul Univ, Mat Sci & Nanotechnol Engn Dept, Kayseri, Turkey
[2] Karadeniz Tech Univ, Mining Engn Dept, Trabzon, Turkey
来源：
INTERNATIONAL JOURNAL OF MINING RECLAMATION AND ENVIRONMENT | 2021年 / 35卷 / 05期
关键词：
Hazardous heavy metals; alkaline industrial by-products; ground-water quality; STRENGTH; ADMIXTURE; LIMESTONE; BRICKS; WASTE; ASH;
D O I：
10.1080/17480930.2020.1829778
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
This research elucidates the geochemical behaviour of cemented paste backfill (CPB) of sulphide-rich tailings (S-rT). The dynamic-tank leaching test was performed on the CPBs for up to 360 days. The CPBs with the alkaline industrial by-products (AIPs) produced relatively lower acidity, Ec and SO(4)(2-)than the Control. The AIPs replacement appeared to considerably mitigate the release of heavy metals (HMs) including As. Only Mo and As in CPBs of AIPs exceeded the limit-values for ground-water. These findings demonstrated that a suitable CPB mixture design to control the release of all HMs in CPB is of practical importance for ground-water quality.
引用
收藏
页码：336 / 355
页数：20
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