福島核電廠發現放射性冷卻水滲漏 | 環境資訊中心
國際新聞

福島核電廠發現放射性冷卻水滲漏

2013年04月10日
摘譯自2013年4月9日ENS日本,東京報導;姜唯編譯;蔡麗伶審校

2011年3月福島核電廠冷卻系統故障,以灑水車灑水冷卻反應爐。福島第一核電廠存放放射性冷卻水的地下儲水槽又傳出滲漏。根據東京電力公司提供的資訊,5日起總計有約32000加侖的放射性冷卻水流出。

日本政府已下令要求東京電力公司立刻修復福島第一核電廠放射性冷卻水滲漏的問題。

2011年3月11日海嘯和地震造成福島第一核電廠冷卻系統停擺後,曾連續數月以大量的水噴灑反應爐使之冷卻。這些具有放射性的水被儲存在核電廠的地下儲水槽。

繼車諾比之後,福島也爆發了全世界最重大的核能事故。福島核災中,第一核電廠的六個反應爐有三個有爐心熔毀的危險。

京電力公司蓋來儲存放射性冷卻水的七個儲水槽中,有三個儲水槽出現滲漏。這些儲水槽是由內部兩層聚乙烯和外層一層黏土所構成。

雖然在冷卻水進入儲水槽前,會先經處理將水中的放射性物質銫吸收,但水中仍有其他的放射性物質。東京電力公司證實,上周起陸續有兩個儲水槽發生滲漏,是2011年核災以來最嚴重的滲漏現象。9日發現第三處滲漏。

此外,三月曾發生多次電力中斷,讓核電廠的冷卻系統暫時停擺。

經濟產業大臣茂木敏充9日下令,要求東京電力公司總裁廣瀨直己徹底解決放射性冷卻水滲漏和電力中斷的問題,而且需確保放射性冷卻水不會流出至太平洋。

東京電力公司6日在其網站澄清,由於儲水槽並沒有向外的排水溝,不會有將放射性冷卻水排放進海洋的疑慮。

日本原子能管制委員會9日要求東京電力公司執行副總裁相澤善五與會,一同討論滲漏處置方式。

會後,管制委員會委員更田豊志表示,他們對放射水滲漏問題高度重視,但也向民眾保證不會有進一步的影響。

更田豊志指出,放射性冷卻水滲漏到影響外界環境需要一段時間,東京電力公司會在影響發生之前採取行動處理滲漏水。

看來東京電力公司還需要花相當大的力氣處理以及存放大量的放射水。

Radioactive Water Leaks From Japan’s Damaged Nuclear Plant
TOKYO, Japan, April 9, 2013 (ENS)

The Government of Japan has ordered Tokyo Electric Power Co. to fix fresh radioactive water leaks at its damaged Fukushima Daiichi nuclear power plant.

Leaks in three underground storage pits at Fukushima Daiichi have released an estimated 32,000 gallons of radioactive water since Friday, TEPCO officials report.

The underground tanks contain water that became radioactive when it was sprayed into the Fukushima Daiichi reactors continuously for months to cool the nuclear fuel after the earthquake and tsunami March 11, 2011 knocked out power to the power plant's cooling system.

Three of the power plant's six reactors suffered meltdowns anyway in the world's worst nuclear accident since Chernobyl.

The three leaking tanks are among seven that TEPCO built to hold the radioactive water. The tanks all have two inner polyethylene linings and an outer clay lining.

Although radioactive cesium is removed before the water is moved to the tanks, other radioactive substances remain in the water. TEPCO confirmed that two of the tanks have been leaking the radioactive water this past week, the biggest leak since the early months after the 2011 disasters.

Today, a third tank was found to be leaking.

There also were several power outages that temporarily disabled the plant's nuclear fuel cooling systems in March.

Economy, Trade and Industry Minister Toshimitsu Motegi today ordered TEPCO President Naomi Hirose to address public concerns about the radioactive water leaks and power outages.

In a meeting with Hirose, the minister instructed him to ensure that the radioactive water will not seep into the nearby Pacific Ocean.

TEPCO said Saturday on its website, "We assume that there is no leakage to the ocean since there is no drainage ditch near the reservoir."

The Nuclear Regulation Authority summoned TEPCO Executive Vice President Zengo Aizawa today to discuss the leaks.

After the meeting, NRA Commissioner Toyoshi Fuketa said they are taking the incident seriously but assured the public that there is no cause for alarm at this time.

Fuketa said it will take some time before the contamination reaches the environment and says that by then, the company will have taken steps to contain the leaked water.

TEPCO continues to struggle with an enormous volume of contaminated water and an shortage of alternate space to store it.

※ 全文及圖片詳見:ENS

作者

蔡麗伶(LiLing Barricman)

In my healing journey and learning to attain the breath awareness, I become aware of the reality that all the creatures of the world are breathing the same breath. Take action, here and now. From my physical being to the every corner of this out of balance's planet.