A Portrait of Dr Andrew Benedek’s Ground-breaking Work

A Portrait ofDr Andrew Benedek's ground-breaking work in membrane technologies

It was in the late 1960s, when Canadian scientist Andrew Benedek - known today as an international authority on water technology - was starting his career as an engineer that he had a personal awakening to the world's watercrisis.

Fresh out of Canada's McGill University with a degree in chemical engineering, he was hired by a petrochemical company in the UnitedStates.

His first job, he says, was to measure the pollution coming out of its plants. But the scary thing was - nobody really knew what to do about the "chemicals from refineries going intorivers".

"We simply didn't have the knowledge," he tells Eco-Business in a recent interview. "Yes, we knew about sewage treatment in the 60s but we knew nothing about chemical treatment. We were just letting it out into therivers."

As he witnessed what he described as "gross pollution, untreated toxic waste" destroying the environment, he decided to pursue post-graduate studies to see if he could "turn the picturearound".

"It was awful. It had gotten to the point of rivers (in the US) catching fires," he says "And I wanted to be the one to undo thepollution."

He promptly left his job, went to University of Washington, Seattle, and by 1970 obtained his PhD in chemical engineering with a focus on wastewatertreatment.

He then accepted a professorship at Canada's McMaster University where he taught and conducted research on improving waterquality.

There, his obsession with finding scientific solutions to the water problem continued; and it was at McMaster that he discovered the great potential and benefits of low-pressure membranes that could replace existing wastewater treatmentprocesses.

"This made treating wastewater a lot cheaper, a lot easier, and more energy-efficient," he says. "We really changed the way it wasdone."

It was this breakthrough that would eventually win him recognition internationally as a technology pioneer, and paved the way for him to become the inaugural laureate of the Lee Kuan Yew Water Prize, which was set up by Singapore in 2008 to honour outstanding contributions by individuals or organisations towards solving the world's waterproblems.

The award was the icing on the cake for Dr Benedek, who had won previous accolades such as American Water Works Association's George Warren Fuller Award in 2000, the Queen's Golden Jubilee Medal in 2002, and the Society for Chemical Industry's International Award in 2004. His first company Zenon Environmental Inc, which he set up in 1980 to apply the membrane technology, also won the Stockholm Water Industry award in2003.

From scientist toentrepreneur

By adopting membranes in water treatment, Dr Benedek opened up new possibilities of water purification anddesalination.

These membranes use less energy, have lower operating costs and are easier to use, compared with conventional water purification technologies. Because the technique can be used in huge treatment facilities as well as small portable water treatment systems for rural communities, the versatility meant that good quality drinking water can now be produced affordably almost anywhere in theworld.

In countries such as Belgium, Canada and the US, this technology has allowed water of poor quality to be treated to drinkingstandards.

In developing countries such as China and Brazil, it can be used to produce drinking water through desalination, which has now become a cheaper and viableoption.

Singapore is also one beneficiary of his research. Its brand of ultra-clean, high-grade reclaimed water, called NEWater, is reclaimed from treated used water using membrane technology and has helped the resource-poor country attain watersustainability.

Zenon eventually became a world leader in the field, and was so successful that General Electric, the world's biggest industrial firm, bought the firm in June 2006 for a whopping C$790 million (US$659 million). At the time of the sale, the 26-year old company had annual sales of about CDN$250 million and employed 1,500people.

Dr Benedek left the firm and went back to academia thereafter, becoming a research associate at the Scripps Institute of Oceanography at San Diego - where he studied the effects of global warming on the world's oceans - until2008.

It was during this time that he learnt that he was nominated for the inaugural Lee Kuan Yew Water Prize, which honours the world's most outstanding contributions and innovations in water technology or management.

From a prize to the next bigidea

Established by Singapore to be the ‘crown jewel' of the Singapore International Water Week, the Lee Kuan Yew Water Prize is named after Singapore's first Prime Minister whose contributions helped put the country on the path of watersustainability.

Its nominating committee, in their citation, said Dr Benedek's revolutionary water treatment stood out in a field of 39 international nominations entered in the firstyear.

The committee comprised leading figures in the corporate, utility, research, policy and government sectors. They looked at the technology, policy or programme, its implementation and above all, its impact on humanity. The scientist says the prize brought him wider acclaim and enabled him to talk to a wider audience about his work and passion for water treatment. Today, Dr Benedek remains a close friend of Singapore, as part of the International Advisory Panel under the Environment and Water Industry Programme Office to grow the Singapore waterindustry.

"It's certainly an honour," he said of the prize. "And I am heartened that the people in Singapore take water soseriously."

He says he also has the prize to thank for giving him his next big idea - taking wastewater treatment a step further by not just cleaning water but also extracting resources in theprocess.

"When I had to presenta lecture about the prize, I talked about the next generation of wastewater treatment plants - which in my vision are really resource recovery plants. And I started a company doing justthat."

"So the idea of the company, it was borne pretty much out of the Lee Kuan Yew Water Prize," hesaid.

Going beyond protectingwater

These days, Dr Benedek is pre-occupied with this big idea of extracting resources out ofwater.

He says that sustainable development is not just about protecting water sources, but also about finding solutions to co-exist with the planet and having as little environmental impact aspossible.

"Turning wastewater plants into resource recovery centres is one humble way of going in that direction," headds.

Rather than looking at waste as something to get rid of, the right approach is to look at it as a resource, and make it "economically attractive" to recover materials from the resource, he pointsout

His firm, called Anaergia, which he started in 2008, now has four offices in Europe, three in Asia, two in North America and one inAfrica.

Anaergia's anaerobic digestion technology helps produce clean energy, fertilizer and recycled water from organic waste streams, and have relevance to municipal, industrial, commercial and agriculturalsectors.

Anaergia's technologies are now used at more than 1,600 resource recovery facilities worldwide, helping reduce greenhouse gas emissions while creating new revenue sources itsclients.

Dr Benedek said he is grateful to the Singapore for recognizing his work, and giving him the impetus to take his research to the nextlevel.

"It was a great experience to be here sharing my vision and discussing the untapped possibilities in water management," he says. "One of the greatest memories of the event was having dinner seated next to Mr Lee Kuan Yew. What struck me the most was the brilliant, strategic, clear and very firm thinking that Mr Lee exhibited on subjects as diverse as sustainability in Singapore, US politics and wealth creation in Singapore as well as elsewhere inAsia.

"As far as his views and actions on water sustainability, I have understood them and admired them even before meeting Mr. Lee as I have been fortunate to have participated in some of the projects over the years that came from his vision. It was an honour to have met him and be part of his continuing legacy for Singapore," Dr Benedek recalls.

Source: Eco-Business

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• Technology
• Membranes
• Water Management