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Solar Energy Firms Leave Waste Behind in China http://apocadocs.com/s.pl?1205201113
With the prices of oil and coal soaring, policymakers around the world are looking at massive solar farms to heat water and generate electricity. For the past four years, however, the world has been suffering from a shortage of polysilicon -- the key component of sunlight-capturing wafers -- driving up prices of solar energy technology and creating a barrier to its adoption.
With the price of polysilicon soaring from $20 per kilogram to $300 per kilogram in the past five years, Chinese companies are eager to fill the gap.... But Chinese companies' methods for dealing with waste haven't been perfected.... the byproduct of polysilicon production -- silicon tetrachloride -- is a highly toxic substance that poses environmental hazards.... For each ton of polysilicon produced, the process generates at least four tons of silicon tetrachloride liquid waste....
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[Read more stories about:
toxic leak, unintended consequences, electronic waste]
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The ApocaDocs say:
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Actually, the companies' methods have been perfected:
"Stopping between the cornfields and the primary school playground, the workers dumped buckets of bubbling white liquid onto the ground. Then they turned around and drove right back through the gates of their compound without a word."
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