Is brown the new green? UCLA researchers are using waste matter (yes, including poop) to make a new generation of advanced biofuels.
The U.S. alone annually produces over 1 billion tons of manure from agriculture, which produces nitrous oxide methane emissions, greenhouse gases 325 times more potent than carbon dioxide. But what if all this poop could have another use – one that could stimulate a sustainable biofuel movement?
Graduate researcher David Wernick talks about ongoing work at UCLA to turn manure, sewage, plant waste and even carbon dioxide out of the atmosphere into feed stocks for producing biofuels, and for making the process of manufacturing biofuels clean and sustainable.
UC San Diego biology and chemistry students have created the world’s first algae-based, sustainable surfboard.
The project began several months ago when undergraduate biology students began working with a group of undergraduate chemistry students to solve a basic chemistry problem: how to make the precursor of the polyurethane foam core of a surfboard from algae oil.
Polyurethane surfboards today are made exclusively from petroleum.
“Most people don’t realize that petroleum is algae oil,” explained Mayfield. “It’s just fossilized, 300 million to 400 million years old and buried deep in underground.”
The chemistry students figured out how to chemically change the oil obtained from laboratory algae into different kinds of “polyols.” Mixed with a catalyst and silicates in the right proportions, these polyols expand into a foam-like substance that hardens into the polyurethane that forms a surfboard’s core.
Although the board’s core is made from algae, it is pure white and indistinguishable from most plain petroleum-based surfboards. That’s because the oil from algae, like soybean or safflower oils, is clear.
“This shows that we can still enjoy the ocean, but do so in an environmentally sustainable way,” added Stephen Mayfield, a professor of biology and algae geneticist who headed the effort.