Tag Archives | water

1200 gals water make 1 gal ethanol

Corrected headline reads 1200 gal water Wholly irrigated corn can take up to 1200 gal of water to produce 1gal ethanol, according to a report on the MinPost today. That’s a lot of water and touches again on my obsession with aquifers. 

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The right cellulosic biofuels might help protect the environment

Biofuels from cellulosic feedstock could help to protect the environment by reducing the amount of nitrogen that runs off into rivers and by providing coverage that helps protect the land against wind and rain erosion. That is one of the central assertions in a guest article by Richard Cruse and Hillary Olson in the Des […]

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Will water be the limiting factor in biofuel production?

I have blogged in the past about the relationship between water and biofuels. There can’t be conventional grain-based biofuels without water. But there was an interesting post on EurActive a little earlier today in response to the annual Davos meeting. This year it produced a  Water Initiative. Buried deep (page 22),the Davos report it suggests […]

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Syngenta unveils tropical sugar beet in India

Syngenta has unveiled a new tropical sugar beet that produces around as much sugar as cane, the company says. The crop matures in five months and uses less water than cane. This could be useful for ethanol production in the tropics.

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Desert greenhouses could harness the sea to grow bioufels

Greenhouses in desert areas near the sea could be used to grow a range of plants including Jatropha according to Guardian Unlimited. The answer lies in using the sun’s energy to evaporate sea water… 

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A biofuels polemic from Huffington Post

If you are interested in the environmental impact of biofuels in the US check this polemic on the Huffington Post. Makes some good points about the end to end efficiency of biofuels in the automotive sector. You can’t comment on it there, so perhaps you’d like to do so here.

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Ethanol without the microbes

Interesting comment from David Benson, a bit off topic,  but bang on the money about alternative technologies. This has a lot of things I like, especially the Fischer-Tropsch Synthesis plant which uses hydrogen from electrolysed water, (electricity generated by wind) and smokestack carbon dioxide to make ethanol. It would be interesting to see how Doty […]

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Kudzu its catching on

I reported that Kudzu could be a good biofuel source for ethanol. Looks like the Huffington post agrees. Kudzu is the latest new craze, according to Huffington. Like all crazes I’ll give it a couple of months. Now what about water hyacinth as a possible biofuel?

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19 US Govenors sign up to renewable fuels

Green Car Congress tells us that 19 state governors have signed up to an agreement to speed the adoption of biofuels in their sates. Which sounds fine as long as they have got plans to manage the increased water demand that this might produce… I wonder.

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Ethanol puts pressure on Minasota’s water reserves

Ethanol puts enough pressure on Minnesota’s water reserves for the state to ask the Environmental Quality Board to look at the demands that planned ethanol plants could put on water in the state, according to the Associated Press. Hattip to the Worthington Daily Globe

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