Utility of Eucalyptus tereticornis (Smith) bark and Desulfotomaculum nigrificans for the remediation of acid mine drainage

Bioresource Technology
Evvie Chockalingam, S Subramanian

Abstract

The efficacy of the bark of Eucalyptus tereticornis (Smith) as an adsorbent for the removal of metal ions and sulphate from acid mine water was assessed. About 96% of Fe, 75% of Zn, 92% of Cu and 41% of sulphate removal was achieved from the acid mine water of pH 2.3 with a concomitant increase in pH value by about two units after interaction with the tree bark, under appropriate conditions. The adsorption isotherms adhered to Freundlich and Langmuir relationships and were exothermic in nature. The free energy of the adsorption process was found to be negative attesting to the feasibility of the reaction. The adsorption kinetics followed the first-order Lagergren rate equation. The filtrate obtained after treatment with E. tereticornis (Sm) bark was found to contain essential elements like potassium, magnesium, calcium, sodium and phosphate apart from carbon which served as a successful growth medium for the sulphate reducing bacteria (SRB) namely Desulfotomaculum nigrificans. Bacterial growth studies showed that about 57% and 72% of sulphate reduction could be achieved at initial pH values of 4.1 and 5.5 respectively of the acid mine water. Pretreatment of the acid mine water with tree bark followed by bioremoval using Dsm. ni...Continue Reading

References

Sep 27, 2003·Water Research·Thomas A DavisAlfonso Mucci
Jun 23, 2004·Water Research·G BoshoffP D Rose
Feb 1, 2005·The Science of the Total Environment·D Barrie Johnson, Kevin B Hallberg
Feb 1, 2005·The Science of the Total Environment·D Barrie Johnson, Kevin B Hallberg
Mar 1, 2005·Bioresource Technology·S K Patidar, Vinod Tare
Dec 27, 2005·The Science of the Total Environment·Margarete KalinWilliam N Wheeler
Dec 19, 2006·Bioresource Technology·Tran Thi Hien HoaAjit P Annachhatre
Jun 19, 2007·Biotechnology Advances·Warounsak Liamleam, Ajit P Annachhatre
Mar 4, 2008·The Science of the Total Environment·R Guy RieflerCheryl Socotch
Apr 18, 2008·Bioresource Technology·Yong-Jin ParkSeog-Ku Kim

❮ Previous
Next ❯

Citations

May 2, 2014·Environmental Science and Pollution Research International·Lena Johansson WestholmMika Sillanpää
Mar 10, 2015·Journal of Hazardous Materials·Tianyu GaoGuohong Qiu
Nov 13, 2010·Bioresource Technology·Takahiro YamashitaJianqing Zhu

❮ Previous
Next ❯

Related Concepts

Related Feeds

Bioremediation (ASM)

Bioremediation is the treatment and removal of harmful pollutants or contaminants through the use of microorganisms. Discover the latest research here.