Can you make lemonade from algae?

Figuratively, yes. A bunch of students from the University of Michigan and Michigan State University have a business plan to use algae to treat wastewater and make biofuels.

It’s a double play, like taking lemons and making a cool, refreshing drink. Or maybe even a three-pointer, since these are rival schools.

The students, calling themselves Team Algal Scientific, were recently awarded the first-ever Clean Energy Prize from U of M and DTE Energy.

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by agathabrown, turtleanddove

The current cap is 10 percent. An ethanol trade group called Growth Energy has formally requested an increase to 15 percent, saying it will create more than 100,000 jobs and pump more than $24 billion into the economy, Reuters reports. There’s also the added benefit of increasing the demand for ethanol by 6 billion gallons a year, MSNBC says.

The U.S. Environmental Protection Agency is studying whether a higher blend would harm older cars. Some newer vehicles are designed to run on E-85 (an 85 percent blend).

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Coal is dirty. Nuclear is dangerous. Wind and solar are intermittent. Trash is a constant, which brings us to landfill gas.

People throw things away. They recycle, sure, but consider all the waste in the world the next time you unpack your groceries. Product packaging alone can fill your trash can after one trip to the supermarket.

Garbage goes into landfills, where it decomposes,  and creates methane, a gas much more potent than the whipping boy, carbon dioxide. For years, landfills have gotten rid of this gas, which builds up inside, by flaring it off. Burning it, wasting it.

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Courtesy U. of Minnesota

Exit up ahead: A University of Minnesota study has concluded that corn-based ethanol is no better than gasoline.

The Star Tribune says ethanol may even be a bigger polluter, when it comes to greenhouse gas emissions and particulate matter. Cellulosic ethanol made from switchgrass and other plant materials is far better for human health, the scientists say.

But the Renewable Fuels Association claims the study is flawed. Among other things, it assumes that grassland will be taken out of the federal Conservation Reserve Program to make more corn-based ethanol. The RFA says most of the increase in corn production in the U.S. has been through higher yields rather than conversion, and there’s no peer-reviewed evidence for the study’s methods. (see the pdf).

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