@article{(Open Science Index):https://publications.waset.org/pdf/8043,
	  title     = {Treatment of Acid Mine Drainage Using Un- Activated Bentonite and Limestone},
	  author    = {Thembelihle Nkonyane and  Freeman Ntuli and  Edison Muzenda},
	  country	= {},
	  institution	= {},
	  abstract     = {The use of un-activated bentonite, and un-activated
bentonite blended with limestone for the treatment of acid mine
drainage (AMD) was investigated. Batch experiments were
conducted in a 5 L PVC reactor. Un-activated bentonite on its own
did not effectively neutralize and remove heavy metals from AMD.
The final pH obtained was below 4 and the metal removal efficiency
was below 50% for all the metals when bentonite solid loadings of 1,
5 and 10% were used. With un-activated bentonite (1%) blended with
1% limestone, the final pH obtained was approximately 7 and metal
removal efficiencies were greater than 60% for most of the metals.
The Langmuir isotherm gave the best fit for the experimental data
giving correlation coefficient (R2) very close to 1. Thus, it was
concluded that un-activated bentonite blended with limestone is
suitable for potential applications in removing heavy metals and
neutralizing AMD.},
	    journal   = {International Journal of Materials and Metallurgical Engineering},
	  volume    = {6},
	  number    = {8},
	  year      = {2012},
	  pages     = {667 - 672},
	  ee        = {https://publications.waset.org/pdf/8043},
	  url   	= {https://publications.waset.org/vol/68},
	  bibsource = {https://publications.waset.org/},
	  issn  	= {eISSN: 1307-6892},
	  publisher = {World Academy of Science, Engineering and Technology},
	  index 	= {Open Science Index 68, 2012},