Sydney Water’s waste-to-energy is using food waste sourced locally to power Cronulla Wastewater Treatment Plant. A positive example of organic waste being used to generate biogas.
Sydney Water already uses an anaerobic digester at the site to process sewage sludge and a co-generator engine to generate power. By building another tank to take liquefied food waste, it can boost the microbes to make the methane, and generate the power required for operations at the Cronulla plant.
The food waste (organic waste) helps to generate renewable energy to power the plant, it will also save 150,000 wheelie bins of fruit and vegetables per year from landfill.
Renewable energy being produced from food waste will generate more than 60% of the energy the plant needs to run, which is enough to power a third of homes in Cronulla for a whole year. Fruit and vegetable waste which is typically driven many kilometres away for landfill will also now stay in Cronulla.