Today in Biofuels Opinion: “A report published by the UN’s World Water Assessment Programme (WWAP) has warned that the sharp increase in biofuel production has impact significantly on water demand.”
From Zacks.com: “Last Friday Cosan Ltd. (CZZ) shares went up more than 20% based on a statement from the chairman of Petrobras Biocombustiveis, a subsidiary of Petrobras (PBR), that the Brazilian state-owned giant oil company would be considering some kind of partnership with local ethanol producers. There were even some rumors that Petrobras would be considering an acquisition of Cosan…The statement of the Chairman of Petrobras Biocombustiveis only reinforces our positive view on Cosan. We continue to rate the stock a Buy.
From Biofuels International: “A report published by the UN’s World Water Assessment Programme (WWAP) has warned that the sharp increase in biofuel production has impact significantly on water demand….One of the major problems with biofuels is the need for large quantities of water and fertilisers to grow the crops. Between 1,000 and 4,000 litres of water are needed to produce a single litre of biofuel.”
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larryhagedon | Aug 18, 2009 | Reply
Here in the American Midwest, the rain falls on crops as well as fallow ground. We save no water by not growing corn.
As for water used in biotech processing, much of it is only borrowed, purified and returned to the rivers after use.
As we move into another generation of bio tech processing, we will salvage the water from sewage, animal manures, even garbage. We will use it in bio-technology processes, purify it with green algae, and send it on down the river, cleaner than the river water is.
There are hundreds of products to produce from the various bio tech feedstocks besides ethanol and bio diesel. Fertilizers are one product of many that will be recovered and reused over and over.