China News Service, September 7th. According to comprehensive Japanese media reports, Japan’s Tokyo Electric Power Company disclosed on the 6th the excavation site of the submarine tunnel used for the discharge of nuclear sewage from the Fukushima Daiichi Nuclear Power Plant into the sea.
It is reported that the tunnel officially started on August 4, with a total length of about 1 km, and has been excavated about 80 meters.
Strive to start emission around next spring.
The picture shows the Fukushima Daiichi nuclear power plant in Japan on February 13.
According to Kyodo News, the excavation uses a large equipment called a shield machine, and the reinforced concrete wall is attached to every 1 meter of excavation. This operation is repeated about a thousand times.
It is reported that the initial plan is about 150 meters of careful excavation, and the speed will be accelerated from around late October.
According to the Japan Broadcasting Association (NHK), so far, the shield machine has been excavating at a speed of about 5 to 6 meters per day, and the length of 80 meters was excavated on the 6th.
Kyodo News quoted the person in charge of Tepco as saying: "The operation is very smooth. In order to gain an understanding of the sea discharge, a detailed explanation will be given on the progress of the project and the safety of the equipment."
It is reported that depending on future weather and ocean conditions, the project may also be delayed, and the start of the discharge may be delayed until around next summer.
On March 11, 2011, an earthquake with a magnitude of 9.0 occurred in the waters off northeastern Japan and triggered a huge tsunami, causing heavy casualties.
Affected by the earthquake and tsunami, a large amount of radioactive material leaked from the Fukushima Daiichi Nuclear Power Plant.
On April 13, 2021, the Japanese government decided to discharge a large amount of nuclear sewage from Fukushima into the sea.
According to the plan, the nuclear sewage will be diluted with sea water and then discharged about 1 km offshore through an undersea tunnel.
The move was strongly opposed by the Fukushima Prefecture Fisheries Association and the National Federation of Fisheries Associations of Japan, as well as the international community.