Advanced Water Management Centre

AWMC Seminar Program: Guillermo Pozo Zamora

Effective chemical-free treatment of acid mine drainage based on a novel bio-electrochemical process

Acid mine drainage treatment technologies are historically conceptualized to meet discharge limits and produce clean water and not to recover marketable materials. Even though metal sulfides can be recovered using biological sulfate reduction processes, these require large quantities of organic compounds which are usually unavailable locally, thus constituting a barrier for widespread implementation. At the same time, it has to be considered that the final product of this sulfate reduction process is sulfide, which may then be re-oxidised even when precipitated with some of the metals present, thus regenerating acid and re-solubilising metals.

I am proposing a ground-breaking bio-electrochemical alternative which intends to overcome the limitations imposed by the more traditional and available methods.

This presentation will summarise the work on sulfur and metal recovery from mining wastewater of the last 3 years, including the first batch tests, the continuous operation and the overall feasibility of the simultaneous sulfur and metal recovery concept. Furthermore, the expansion of the technology for the selective recovery of high-value products such as metal nanoparticles and rare earth elements on the overall feasibility will be discussed.

 

Event Details
Date & Time: 
Friday, 02 December 2016
9am - 10am
Venue: AIBN Building 75, Level 1 Seminar Room

Event Contact: awmcseminars@awmc.uq.edu.au