Share

Nuclear fuel removed from crippled Japan plant

The operator of Japan's crippled Fukushima power plant on Monday began removing atomic fuel from inside a building housing one of the reactors that melted down in 2011.

The delicate operation represents the first time the Tokyo Electric Power Co (TEPCO) has pulled out fuel rods from inside a highly contaminated building containing the melted-down reactor, and comes four years behind schedule.

Due to high radiation levels, technicians used remote-controlled equipment to haul fuel from a "storage pool" inside the building.

Operations were briefly suspended early on Monday afternoon after a problem with the equipment removing the fuel, but resumed shortly afterwards.

"We finally started this work. We will spend two years removing 566 units of fuel from reactor three," said Takahiro Kimoto, a TEPCO spokesperson.

TEPCO removed four units as planned on Monday, with workers continuing to remove debris that have fallen inside the pool and other areas, Kimoto told reporters.

"Factors such as removal of debris and various troubles have caused delays, which we realise have caused significant worries to people in the region and others," Kimoto said.

"Putting safety as our priority, we will carefully continue this work," he promised.

Engineers have had to contend with clearing earthquake debris inside the building and an array of other technical challenges, said TEPCO spokesperson Yuka Matsubara.

"We had to proceed carefully (to remove debris), and we needed to take measures as dust would waft up and increase radiation readings," she told AFP.

TEPCO engineers will not yet attempt to extract molten nuclear fuel that remains deep inside the mangled reactor. This is considered the most difficult part of the massive clean-up operation and is not expected to begin until 2021.

'Reconstruction plan'

In February, TEPCO sent a remote-controlled probe to pick up pebble-sized pieces of the melted fuel in a bid to find out whether the material could be moved.

The next step in that painstaking process will be to remove some of the fuel as a sample, which is scheduled to happen by March 2020.

The company also faces other difficult challenges, including working out how to dispose of large quantities of contaminated water stored in containers at the plant site.

In the worst nuclear disaster since Chernobyl in 1986, reactors one, two and three at the Fukushima Daiichi power plant melted down after a deadly earthquake and tsunami that struck Japan in 2011.

The tsunami killed around 18 000 people and caused widespread devastation, and the nuclear meltdown forced the evacuation of areas near the plant.

Reactors four through six were offline at the time of the disaster for inspections and did not suffer meltdowns, though reactor four was damaged by an explosion in the days after the tsunami.

In December 2014, TEPCO finished removing all 1 535 units of nuclear fuel kept inside the storage pool at reactor four.

The company aims to conduct the same operations for the buildings for reactor one and two by 2023 as part of a four-decade plan to dismantle the entire Fukushima plant.

Japan's government has pushed a reconstruction plan for the surrounding region that includes decontaminating affected areas and removing topsoil.

This month, an evacuation order was lifted for part of Okuma, one of two towns where the nuclear plant is located.

But regions affected by the disaster have struggled to attract back residents who fled in the wake of the meltdown, with many still concerned about radiation despite government assurances.

KEEP UPDATED on the latest news by subscribing to our FREE newsletter.

- FOLLOW News24 on Twitter

We live in a world where facts and fiction get blurred
Who we choose to trust can have a profound impact on our lives. Join thousands of devoted South Africans who look to News24 to bring them news they can trust every day. As we celebrate 25 years, become a News24 subscriber as we strive to keep you informed, inspired and empowered.
Join News24 today
heading
description
username
Show Comments ()
Voting Booth
Do you think corruption-accused National Assembly Speaker Nosiviwe Mapisa-Nqakula will survive a motion of no confidence against her?
Please select an option Oops! Something went wrong, please try again later.
Results
No, her days are numbered
42% - 394 votes
Yes, the ANC caucus will protect her
58% - 551 votes
Vote
Rand - Dollar
18.94
-0.2%
Rand - Pound
23.91
-0.1%
Rand - Euro
20.43
+0.2%
Rand - Aus dollar
12.34
+0.1%
Rand - Yen
0.13
-0.2%
Platinum
910.50
+1.5%
Palladium
1,011.50
+1.0%
Gold
2,221.35
+1.2%
Silver
24.87
+0.9%
Brent Crude
86.09
-0.2%
Top 40
68,346
+1.0%
All Share
74,536
+0.8%
Resource 10
57,251
+2.8%
Industrial 25
103,936
+0.6%
Financial 15
16,502
-0.1%
All JSE data delayed by at least 15 minutes Iress logo
Editorial feedback and complaints

Contact the public editor with feedback for our journalists, complaints, queries or suggestions about articles on News24.

LEARN MORE