Presenters: Dave Perkins, Waste Management
Presentation title: Food waste only v mixed organic collections
Living Earths five years of operation in Christchurch evidences what can be achieved by a city to reduce waste to landfill. Together with Christchurch City Council, Living Earth has delivered high diversion rates which contribute to the city achieving their waste minimisation targets. The Christchurch model also represents the most economically efficient means of collecting and processing foodwaste and greenwaste from households. All of the Christchurch collection is converted into high quality compost of which is all sold to rural and commercial markets we have developed. Diversion under a foodwaste only collection, such as is proposed for Auckland City, is estimated by Living Earth at a very high cost of at least $400 per tonne. This high cost is unlikely to gain ratepayer engagement, as they will not perceive it as value for money. In our experience, the Christchurch ratepayers engage in the programme because they receive a beneficial service and, to them, it feels like “the right thing to do”. The Christchurch mixed collection model of 50,000 tonnes per annum. Taking this, Living Earth believes that Auckland could save over 170,000 tonnes of organic material from going to landfill. What Council would not want to deliver such a politically and economically successful solution for their city? Living Earth believes that the optimum collection solution for Councils is a mixed collection of foodwaste and greenwaste. Thereby it will achieve a greater volume of organic diversion allowing Councils to deliver waste minimization targets and do so cost effectively. Over the past 20 years, Living Earth has successfully designed and built processing facilities, created markets and developed and invested in its brand. We are well into our second millionth tonne!
Event: WasteMINZ Conference 2014
Date: Tuesday 22 October 2014