Cool stuff is afoot in NZ's sewage works...
http://www.stuff.co.nz/stuff/0,2106,3665147a7693,00.html
http://www.stuff.co.nz/stuff/0,2106,3665147a7693,00.html
Firm claims biofuel breakthrough
12 May 2006
By DAN HUTCHINSON
A Marlborough company says it has made a huge breakthrough in alternative fuel by turning sewage waste into a diesel substitute.
After eight months of research, the international team of New Zealand-based scientists yesterday announced it had successfully turned sewage algae into biofuel.
Nick Gerritsen, director of Aquaflow Bionomic Corporation, said many people were finding it hard to believe that a viable fuel had been developed so quickly.
The company was now increasing its capacity to produce one million litres over the next year from the Blenheim sewage ponds.
High sunshine hours in Marlborough already produced quality wines and most of the country's salt, and it was the same sunny climate that made the fuel project successful.
Aquaflow spokesman Barrie Leay said the company had achieved a world first with the commercial production of biodiesel outside the laboratory.
The resulting product could be added to regular diesel, bulking it up without any need for engine modifications.
Far from pooh-poohing the idea, the Marlborough District Council had welcomed the company into its sewage ponds, because the process provided a way of cleaning up excess algae.
"The market potential for this product is almost unlimited in the peak-oil environment we are in, as there is now a global demand for biodiesel of billions of litres per year," Leay said.
Production of the necessary algae was enhanced by high sunshine, and Leay said that was why the oxidation ponds at the Wairau Lagoons were chosen.
"We expect to produce one million litres of biodiesel a year from Blenheim," Leay said.
Gerritsen said the process had been designed so that plants could be set up at sewage ponds anywhere, providing a large quantity of fuel close to markets. The new fuel could also be made from dairy farm effluent and waste from food-producing factories.
The Government has a target of five per cent biofuel in its diesel by 2008.
Leay said their production would help meet those targets and increase the ratio to 20% as production increased.
Gerritsen said the one million litres produced from the Blenheim ponds would be a commercial-scale trial. It was a drop in the bucket compared with what could be produced from sewage ponds round the country.
Aquaflow had applied for government funding and would also raise money from a share float.
Gerritsen said there had been considerable interest in the product overseas.
He said the United States Department of Energy had identified algae as the most promising large-scale source of alternative fuel after the last oil shock.