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A 70% reduction is not adequate, IMO. It is (just) better than doing nothing.

I beg to disagree... A 75% reduction would be equivalent to two half-lives of radioactive decay, and in the case of Cs137 with its 30-year halflife that's eliminating the first (and most intense) 60 years of the contamination.

Economics is politics by other means

by Migeru (migeru at eurotrib dot com) on Sat Jun 11th, 2011 at 02:33:39 AM EST
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But given the amount already dumped unfiltered and the toxicity of this water is it really too much to ask that they put a few of these filters in series? Subsequent ones should be quicker and cheaper to build and it is not really high tech stuff. Even with effectiveness declining over the useful life of the zeolite, four filters in series would reduce the concentration of cesium to around 5%. Of course, the power to run the pumps could be a problem for TEPCO. They might have to set up fossil fuel based generators on site instead of drawing power from an already starved grid. Better just to poison the oceans.

"It is not necessary to have hope in order to persevere."
by ARGeezer (ARGeezer a in a circle eurotrib daught com) on Sat Jun 11th, 2011 at 10:15:44 AM EST
[ Parent ]
It might be more effective to run multiple in parallel ~ there'll be quite a bit of water that could do with processing.

I've been accused of being a Marxist, yet while Harpo's my favourite, it's Groucho I'm always quoting. Odd, that.
by BruceMcF (agila61 at netscape dot net) on Sun Jun 12th, 2011 at 11:59:10 AM EST
[ Parent ]
Well, they need to get ahead of the rate at which they are generating new contaminated water, at a minimum. I am just astounded that it has taken three months to come up with one such filter, possibly two. But they can thoroughly test this one and the next and possibly, by the time the testing is complete the issue will be moot.

"It is not necessary to have hope in order to persevere."
by ARGeezer (ARGeezer a in a circle eurotrib daught com) on Sun Jun 12th, 2011 at 12:18:10 PM EST
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