TEPCO to discharge contaminated water 1 km off the Fukushima plant

Tokyo Electric Power Co. plans to begin preparations for laying pipes on the seabed to discharge tons of treated contaminated water 1 kilometer from its crippled Fukushima No.1 nuclear power plant soon to free up storage capacity. on the site.

TEPCO is plagued by a continuous buildup of highly contaminated water in the complex following the plant’s triple meltdown triggered by the 2011 earthquake and tsunami.

The utility announced on August 25 that it plans to start releasing water in the spring of 2023.

It will be a study of the seabed from September to prepare the installation of the pipes.

The volume of radioactive water at the plant continues to increase at a rate of 140 tonnes per day, as groundwater and precipitation on damaged reactor buildings is contaminated by mixing with highly radioactive water used for cooling. nuclear fuel melted at the site.

Contaminated water is kept in storage tanks after most of the highly radioactive material has been treated with equipment known as an Advanced Liquid Handling System (ALPS).

More than 1,000 tanks have been installed in the nuclear complex to store the contaminated water, and the space is rapidly reaching capacity.

The government decided in April that dumping treated water into the Pacific Ocean was the only way to solve the problem.

Before being released, the radioactive water will be additionally treated with ALPS and mixed with seawater to dilute the contents.

As for tritium, a radioactive isotope of the element hydrogen that the ALPS cannot eliminate, it will be diluted to less than one 40th of the regulatory discharge standards before being released.

TEPCO must obtain approval from the government’s Nuclear Regulatory Authority to implement its release plan explaining the necessary equipment design and other details.

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