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    Ice-wall coolant leaks from Fukushima nuclear plant in Japan


    January 24, 2022 - Xinhua News Agency

     

      The operator of Japan’s disaster-hit Fukushima No. 1 nuclear power plant has confirmed that four tons of coolant had leaked from two storage tanks, local media reported Monday.

      The coolant was used to create an ice wall refraining groundwater from seeping into reactor buildings, according to the Tokyo Electric Power Company Holdings Inc. (TEPCO).

      The company’s spokesperson Tsuyoshi Shiraishi said about four tons of the calcium chloride solution used to maintain the ice wall had leaked. “We’re now confirming the reason,” he said on Sunday, according to the Japan Times.

      The leakage was discovered on Jan. 16 near the ice wall. There may be damage to the ice pipes in the wall and the company will seek to repair the damage, according to TEPCO.

      There was no immediate impact on the wall’s function, as it takes several months for the wall to thaw in the absence of coolant, Shiraishi said.

      Although the company said the leakage has made no impact on the wall or the environment, it posed more potential danger and unpredictable challenges in the clean-up of the site, nearly 11 years after the massive earthquake and tsunami disaster on Japan’s northeastern coast.

      The last leak took place in December 2019 with 16 tons spilled, likely due to metal fatigue resulting from vibrations caused by construction vehicles, according to the company.

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