Australian Centre for Water
and Environmental Biotechnology

AWMC Seminar Program: Johannes Jermakka

Nitrogen recovery from hydrolysed urine through microbial electroconcentration

Abstract: Microbial fuel cells (MFC) enable moderate electricity production from waste water streams, but feasible practical applications are still lacking. A novel chemicals free concept for nitrogen recovery for fertilizer use from human urine as a solid is presented, in which a microbial fuel cell is combined with electrodialytic unit. Urine is highly promising substrate for electrochemical treatment, as it is highly buffered, highly conductive and contains high concentrations of ammonium nitrogen. The concept efficiency and viability depends on several study questions forming the structure of this PhD. Firstly, a method of forming a solid nitrogen compound through electroconcentration is investigated. Secondly, the cathode oxidation rate is a bottleneck in MFC’s utilizing oxygen reduction cathode, and a previously unpublished oxygen delivery method is researched. Thirdly, hydrolysed urine is a difficult environment for a bioanode, and different anodic setups are regarded. Finally, this thesis aims to link and optimize all three individual aims into a working application.

Host: Advanced Water Management Centre
Event Details
Date & Time: 
Friday, 22 April 2016
9am - 10am
Venue: AIBN Building 75, Level 1 Seminar Room

Event Contact: