David is a chemical engineer specialising in the planning, design and optimisation of wastewater and recycled water treatment plants. He has delivered process designs and technical leadership for Australian biological nutrient removal (BNR) systems with a combined treatment capacity of approximately 1,500,000 EP.
Recent projects include the BNR plants at Cooroy, Murrumba Downs, Merrimac, Oxley Creek, and South Lismore. With extensive experience in both design and operation of BNR plants, David now runs his own process engineering consultancy, Tyr Group.
From 2000-2006, David was the Senior Process Engineer with MWH in Qld, where he was the Lead Process Engineer or Project Manager on over 20 wastewater treatment projects. Prior to this, David was the Process Engineer for Yarra Valley Waters 10 wastewater treatment plants and two odour control facilities. Outside of BNR, David’s papers on advanced biosolids treatment, pathogen removal for water recycling, and carbon accounting reflect his passion for wastewater’s value as a resource.