Effect of neutralized solid waste generated in lime neutralization on the ferrous ion bio-oxidation process during acid mine drainage treatment》.pdf

Journal of Hazardous Materials 299 (2015) 404–411 Contents lists available at ScienceDirect Journal of Hazardous Materials j o u r n a l h o me p a g e : w w w. elsev /locate/jha z mat Effect of neutralized solid waste generated in lime neutralization on the ferrous ion bio-oxidation process during acid mine drainage treatment Fenwu Liu a,1, Jun Zhou b,1, Lixiang Zhou c,∗ , Shasha Zhang a , Lanlan Liu a , Ming Wang d a Environmental Engineering Laboratory, College of Resource and Environment, Shanxi Agricultural University, Taigu 030801, China b College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing 211816, China c Department of Environmental Engineering, College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing 210095, China d Department of Environmental Engineering, College of Resources and Environmental Science, Hubei University, Wuhan 430062, China h i g h l i g h t s g r a p h i c a l a b s t r a c t • Ferrous ion oxidation prior to lime neutralization is necessary for AMD treatment • Neutralized solid waste (NSW) can enhance ferrous ion bio-oxidation efficiency • NSW can act as seed for iron oxyhy- droxysulfate mineral bio-synthesis • NSW can improve total iron pre- cipitation during ferrous ion bio- oxidation process a r t i c l e i n f o a b s t r a c t Article history: Bio-oxidation of ferrous ions prior to lime neutralization exhibits great potential for acid mine drainage Received 3 April 2015 (AMD) treatment,