Study on the treatment of acid mine wastewater by coal fly ash
- 10.2991/icmaee-14.2014.40How to use a DOI?
- AMD, Permeable Reactive Barrier, coal fly ash, modified, treatment effect
This paper studied the feasibility of treating the acid mine drainage (AMD) by using a process of permeable reactive barrier (PRB), in which coal fly ash(CFA) was used as the reaction medium. The adjustment of pH and the removal of COD, sulfate and three kinds of heavy metal ions (Cd2 +, Cu2 +, Zn2 +) were illustrated. The results showed that the coal fly ash was effective in treating AMD, and the highest removal rates for COD and sulfate could be obtained in 12 h with 53.4% and60.4%, respectively; the maximum removal efficiencies of Cd2 +, Cu2 + and Zn2 + were42.9%, 74.8% and 26.7%; Besides, in this work, the modification of CFA was conducted by using an acid modification method. In comparison to the original CFA, the modified coal fly ash presented not too bad and displayed a better treatment effect toward the acid mine wastewater. MCFA have higher removal rate of heavy metal ions(Cd2 +, Cu2 + and Zn2 +), the removal rate of Cu2 + even reached 91.85%.
- © 2014, the Authors. Published by Atlantis Press.
- Open Access
- This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).
Cite this article
TY - CONF AU - Jianping Xu AU - Haitao Wan PY - 2014/03 DA - 2014/03 TI - Study on the treatment of acid mine wastewater by coal fly ash BT - Proceedings of the International Conference on Material and Environmental Engineering (ICMAEE 2014) PB - Atlantis Press SP - 150 EP - 153 SN - 1951-6851 UR - https://doi.org/10.2991/icmaee-14.2014.40 DO - 10.2991/icmaee-14.2014.40 ID - Xu2014/03 ER -