Adelaide's own Jeffries a world leader/innovator in the recycling and composting of organics
Jeffries Group introduced a commercial food organics recycling service, involving supermarkets, hotels and restaurants across metropolitan Adelaide.
Image courtesy Jeffries Group
A world-first screening system, to remove contaminants such as plastic bags, boosted the quality of green organics collected by councils from most Adelaide households. The Recycled Organics Screening System (ROSS), designed and built in South Australia with engineering firm Quarry and Mining Manufacture, was part of a $3 million plant upgrade by Jeffries Group, supported by $300,000 from the state government’s Zero Waste SA (now Green Industries SA).
Jeffries Group recycles more than 100,000 tonnes of organic material each year, including almost three-quarters of greater Adelaide’s garden organics through kerbside collections. Recyclable organics are taken to Jeffries' Wingfield transfer site for primary processing and then sent to Buckland Park.
The three-storey ROSS system can remove up to one tonne of metal a day from organic material. It has three custom-made mechanical screens and two sorting rooms where up to eight people can manually remove unwanted material. Two magnets remove steel, two fans extract light plastics and a conveyor screens out rocks and plastic bottle caps.
Jeffries’s composting involves placing organic material on concrete channels with pipes that deliver fresh air to the material via automated fans. Probes measure oxygen levels to ensure the correct temperature is maintained throughout.
Jeffries' compost, soil and mulch experts introduced the innovative commercial food organics recycling service, involving supermarkets, hotels and restaurants across metropolitan Adelaide. The collected food is turned into compost, soil and mulch products used by home gardeners, landscapers and horticultural farmers, including vineyards.
Jeffries is wholly owned by a fourth-generation South Australian family from 1842. It is internationally recognised as a leading and innovative organic recycler.