Science

Symposium: Tackling waste

Sunday, 6 October, 2013

Academic and industry delegates from China, India, South Korea, Japan, Sweden, the UK and the US, as well as Australia, have attended a UNSW Science symposium on recycling.

The two-day long 2013 International Sustainability Symposium on innovative waste recycling and energy efficient solutions was hosted by the UNSW Centre for Sustainable Materials Research and Technology, SMaRT@UNSW, and opened by UNSW Vice-Chancellor, Fred Hilmer.

Professor Hilmer said that in the last 50 years the world had consumed more resources than in all of the thousands of years of its previous history.

Dealing with waste presented a major challenge: “We’re producing waste far ahead of our ability to recycle it, with current technologies, and far ahead of our ability to store it, unless we use increasing amounts of valuable real estate as garbage dumps,” he said.

He recalled the “bottle-o” of his youth, who was able to make a business out of collecting glass bottles for recycling. “Today we have got much more complex waste and we have got much more of it,” Professor Hilmer said.

About 85 million new cars and light commercial vehicles came onto the world’s roads last year, almost 20 million of them in China. For every vehicle, about 120 kilograms of it - a residue made up of plastic, rubber, textiles, fibrous materials and wood, contaminated with metal and oil – ends up in landfill.

Professor Hilmer said the university was committed to materials research, including the SMaRT Centre’s project aimed at using the mixed residue waste from cars in the production of metal alloys. “Technology is really the only answer,” he said.

Reflecting this commitment, work has recently begun on a new Material Science and Engineering building, which will be the largest research building on the UNSW campus when it opens in 2015.

Julie Hare, the editor of the Higher Education section of The Australian newspaper, co-chaired the plenary session with Scientia Professor Veena Sahajwalla, director of the SMaRT Centre.

Professor Sahajwalla said the aim of the symposium was to bring industries and researchers together to discuss advances in sustainable materials and processes, and the economic benefits of these approaches.

Speakers included representatives of Arrium Steel, Transpacific Industries, BlueScope Steel, Lend Lease, the NSW Environment Protection Authority, as well as the University of Tokyo, Xi’am University of Architecture and Technology in China, and CSIRO.

UNSW Science media: Deborah Smith, 9585 7307, 0478 492 060, deborah.smith@unsw.edu.au