(Source)
http://www3.nhk.or.jp/nhkworld/english/news/20131028_28.html
http://fukushima-is-still-news.over-blog.com/
The
operator of the damaged Fukushima Daiichi nuclear power plant has
resumed its trial run of a key water decontamination system. It was
shut down due to malfunctions.
Tokyo Electric Power Company on
Monday began test-running one of 3 channels of the Advanced Liquid
Processing unit, or ALPS. ALPS is capable of removing 62 different
kinds of radioactive substances, excluding tritium.
Operation
of the channel was suspended in June following leaks of unprocessed
radioactive water.
TEPCO engineers discovered holes in the
tank storing the contaminated water. Corrosion is apparently to
blame. Work to prevent corrosion has been ongoing in all 3 channels
of the ALPS system.
A test-run of another ALPS channel began
about a month ago. The remaining channel is scheduled for a trial-run
mid November.
Repeated suspensions of the unit have delayed
the start of full-fledged operation till next year. Full operation
was due to begin this autumn.
TEPCO plans to build 3 more ALPS
channels next year. They also plan to set up a facility with higher
water processing capabilities with government aid.
The utility
hopes to complete decontaminating all its stored wastewater by March
2015.
But the question remains whether the trouble-marred ALPS
system is capable of functioning over long periods.
Oct.
28, 2013 - Updated 07:05 UTC
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There
are 350 of the bolted-style tanks in place at Fukushima, and another
710 welded tanks, a more expensive design that takes longer to
assemble......
Tepco
plans to more than double the current storage capacity by 2016, but
doesn't have a plan beyond that point. The math is daunting. The
utility has to find space for an additional 400 tons of radioactive
water each day because of the need to keep the reactors cool for the
next seven years.......
A
radiation filtering machine known as ALPS was supplied by Toshiba
Corp to scrub the water clean of most radioactive elements,
including cesium and strontium. The system, which remains in testing
and under review by nuclear regulators, would leave treated water
with tritium, a radioactive element typically discharged in the
coolant water of reactors and considered one of the least dangerous
radioactive elements.
http://scandanewz.blogspot.co.uk/2013/08/insight-in-fukushima-end-game-radiated.html
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This
commentary is from Japanese comedian and activist Mako who has been
covering the Fukushima disaster ..
「アルプス（他核種除去装置）のバッチ処理タンクの漏洩（６月）もね、メーカーは、『この素材でその溶接で施工すれば、絶対に漏洩する、高い塩分濃度、
高濃度の放射性物質に持つはずがない！』と再三、東京電力に（意見を）上げたそうなんだけど、コストかけられないから、と安い素材、より安価な溶接で押し
切られたんだって。そうしたら、案の定、塩分と高濃度の放射性物質で腐食して、バッチ処理タンクから漏洩したじゃない、『だからずっと言ってたの
に～！！』と嘆いてたよ！」
I
heard that Toshiba who built ALPS, had complained on hearing the news
concerning the leaking problems. They knew leaking would have
happened because of the cheap materials being used and the rushed
welding job done to it. They tried again and again to use
materials with more salt water and radioactive resilience to build
ALPS, however, Tepco didn't listen to their advice, wanting to build
as quickly and cheaply as possible, so in the end they had to build
it within the budget that Tepco gave.
http://www.magazine9.jp/oshidori/130823/index.php
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