Advanced Water Management Centre

AWMC Seminar Program: Granular Biofilm Growth of Purple Phototrophic Bacteria (PPB) and Its Role in Simultaneous Wastewater Remediation and Resource Recovery

Presenter: Sam Stegman

As the world moves away from the linear take, make, waste model to a circular economy, it’s important that our wastewater treatment technologies do so too. Some microorganisms, like the Purple Phototrophic Bacteria (PPB) convert organics and nutrients found in wastewater sources into other valuable products. PPB is a large group of anoxygenic phototrophs, which have been shown to effectively grow on a variety of wastewaters, including domestic and agri-industrial sources in lab- and pilot-scale systems. Furthermore, they are able to produce a range of valuable products (via assimilation of organics and nutrients in wastewater into biomass), from microbial protein for use in feed supplements, to organic pigments in the food or cosmetic industries. Wastewater treatment via suspended and submerged attached-biofilm PPB have been investigated in the literature, however the use of granular PPB has not. Granular biofilms are used in wastewater treatment (e.g. aerobic granular sludge) due to their advantageous settling properties, which allow higher biomass retention in reactors, and reduces reactor footprints and cost of wastewater treatment. This project aims to investigate the treatment of various wastewater sources with granular PPB and the suitability of the corresponding biomass as value-add products (e.g. feed additives, bulk feed supplementation). 

AWMC hosts a free seminar every Friday from 9am.

Event Details
Date & Time: 
Friday, 16 August 2019
9am - 10am
Venue: AIBN Building 75, Level 1 Seminar Room

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