1. Home
  2. / Science and Technology
  3. / 100.000 years without any humans: Inside the Onkalo underground tunnel, the geological tomb that will protect the planet from nuclear waste
reading time 3 min read Comments 74 comments

100.000 years without any humans: Inside the Onkalo underground tunnel, the geological tomb that will protect the planet from nuclear waste

Written by Rafaela Fabris
Published 02/12/2024 às 17:26
Updated 03/12/2024 às 12:50
100.000 years without any humans: Inside the Onkalo underground tunnel, the geological tomb that will protect the planet from nuclear waste
Onkalo, the world's first geological burial mound, will be sealed in Finland in 2025 to safely store nuclear waste 450 meters underground (Image: Reproduction)

In Finland, a groundbreaking project called Onkalo is set to redefine the concept of isolation. This underground complex, located near the Olkiluoto nuclear power plant, is designed to safely store nuclear waste for an impressive 100.000 years. Once sealed in 2025, no humans will be able to access the site, marking a milestone in sustainable nuclear energy management.

Onkalo, which translates to “cave” in Finnish, is more than just a curious name. It represents a bold and necessary response to one of humanity’s greatest challenges: the safe storage of nuclear waste. Developed by Posiva, a Finnish waste management organization, the site is an intricate network of tunnels and chambers dug 450 meters underground, designed to resist geological changes and the passing of time.

BBC journalist Erika Benke was one of the few people to visit the tunnel before it closed for good. “It takes 15 minutes by car to descend the 437 meters to the Onkalo service station,” Benke said, describing the 4,5-kilometer tunnel with its solid rock walls and minimal lighting. At points, the floor becomes wet and muddy, a reminder that the environment here is inhospitable even to humans.

In the heart of Onkalo

Onkalo will feature highly resistant concrete barriers and advanced robots to transport and seal the nuclear waste, ensuring maximum security for 100.000 years.
Onkalo will feature highly resistant concrete barriers and advanced robots to transport and seal the nuclear waste, ensuring maximum security for 100.000 years.

The spent nuclear fuel will be sealed in airtight containers and deposited in vertical holes. The operation involves robots designed to ensure precision and safety, away from human touch. These measures are essential to protect the radioactive material from future generations and from nature itself, which can be unpredictable over such long periods.

A challenge beyond human time

Understanding a period of 100.000 years is an almost impossible task for any human. For comparison, this interval is equivalent to 4.000 generations. 100.000 years ago, the planet was a place dominated by woolly mammoths and the first humans were beginning to explore the world outside of Africa.

This time horizon makes Onkalo a monument to Finland's commitment to environmental responsibility. The international community has already applauded the boldness and technical sophistication of the project, which combines natural and artificial barriers to safely isolate nuclear waste.

Onkalo's legacy

From 2025 onwards, Onkalo will be sealed, leaving behind a silent mission: to protect humanity and the environment from dangerous nuclear waste until nature itself makes it safe. Beneath the serene landscape of southwestern Finland, Onkalo will continue its work, unseen, while human history continues its course.

In this underground tunnel where no human will be able to set foot again, science, ethics and technology meet to leave a legacy that transcends our time.

  • Reaction
  • Reaction
  • Reaction
  • Reaction
  • Reaction
  • Reaction
413 people reacted to this.
React to article
Register
Notify
guest
74 Comments
Older
Last Most voted
Feedbacks
View all comments
Paul Rogerio
Paul Rogerio
02/12/2024 23:41

I would like more details, verification control methods, construction details, cost, etc.

Then
Then
In reply to  Paul Rogerio
02/12/2024 23:50

Any project that contains radioactive materials and is considered to be of strategic security, that is, details like the ones you want to know are not disclosed.

RAKPLEIADE PEREIRA VIANA
RAKPLEIADE PEREIRA VIANA
In reply to  Then
03/12/2024 06:41

Materials Used
Concrete: Used extensively to create barriers that isolate nuclear waste and prevent contamination1.
Copper and Iron: The canisters that store the waste are made of copper and iron, materials chosen for their durability and resistance to corrosion2.
Granite: Onkalo is built on granite bedrock, which provides an additional natural barrier against radiation release…

Leo
Leo
In reply to  Paul Rogerio
03/12/2024 07:11

If there is water infiltration, it is no longer safe. It will contaminate the water table at some point.

Richard
Richard
In reply to  Paul Rogerio
03/12/2024 22:00

The estimated cost of building the Onkalo underground tunnel in Finland, designed to store nuclear waste for 100 years, varies slightly depending on the source. However, we can consider an average:
* Estimated cost: Around 3,4 billion dollars (or 2,6 billion euros).
It is important to note that this is a long-term project and the final cost may be subject to adjustments. In addition, the cost is financed through taxes levied on electricity companies.
Other important information:
* Start of construction: Works began in 2021.
* Operating forecast: The deposit is expected to start operating in 2023, but the complete network of tunnels will only be completed in 2120.
* Purpose: Onkalo is considered an innovative solution for the safe storage of nuclear waste for an extremely long period of time.

Samuel Oliveira
Samuel Oliveira
In reply to  Richard
09/12/2024 19:43

Got it, GPT.

Arciel
Arciel
In reply to  Paul Rogerio
05/12/2024 10:27

Why? Are you going to inspect it or are you going to build something similar?

Marcelo Boni
Marcelo Boni
In reply to  Paul Rogerio
05/12/2024 13:39

What for? What are you an inspector of?

Peter
Peter
In reply to  Paul Rogerio
08/12/2024 00:08

It is probably an exhausted underground mine.

Hermes
Hermes
03/12/2024 07:23

It would be ideal to put **** and his entire clan there a little away from humanity.

Roberto Strazzabosco
Roberto Strazzabosco
In reply to  Hermes
03/12/2024 13:58

Squid?

Valmir
Valmir
In reply to  Roberto Strazzabosco
03/12/2024 21:01

ANOTHER MENTALLY ILL PERSON WITHOUT A BRAIN! SAD COUNTRY OF IGNORANT AND FUNCTIONALLY ILLITERATES!

Peter
Peter
In reply to  Valmir
08/12/2024 00:11

They even voted for ****!

Paco Torres
Paco Torres
In reply to  Roberto Strazzabosco
06/12/2024 09:02

****!!

G. Reis
G. Reis
In reply to  Roberto Strazzabosco
06/12/2024 11:56

**** THIEF 💎 💍 💎

Go ahead
Go ahead
In reply to  Hermes
03/12/2024 21:00

AND THE HYPNOTIZED DONKEYS KEEP NEIGHING!

Fabio
Fabio
In reply to  Go ahead
04/12/2024 05:05

Good 01 lol

George
George
In reply to  Hermes
04/12/2024 07:58

Hahaha your idea is perfect. ptpsol never again!!!!!!

Larry
Larry
In reply to  George
04/12/2024 10:18

Don't forget the PL, the party of thieves

JOHN RODRIGUES DOS SANTOS
JOHN RODRIGUES DOS SANTOS
In reply to  Larry
06/12/2024 10:22

If the PL was a **** party, it was at the time of Lula 1 and Lula 2, in the mensalão of the **** and terrorist José Dirceu and the PT gang, today PTCC!! And the Petrolão, of the skunk and 9-fingered gang leader and his terrorist accomplice Dilmanta! Who stole 4 trillion from the Brazilian economy and the national treasury from the people's taxes!!

Larry
Larry
In reply to  Hermes
04/12/2024 10:17

Yes it's true, best place to isolate B*z* and his straw Trump*os

Neiwaldo
Neiwaldo
In reply to  Larry
04/12/2024 21:09

Either you neigh or you are part of the **** that is f*cking up the country

Cadillac
Cadillac
In reply to  Larry
05/12/2024 06:57

Am I missing something? Is it B*z* who is throwing the country into the current shit?
****"alienated" is the same everywhere🤮🤮🤮

Last edited 1 month ago by Kadilak
Cadillac
Cadillac
In reply to  Cadillac
05/12/2024 07:01

Place without freedom of expression, words are censored.

JOHN RODRIGUES DOS SANTOS
JOHN RODRIGUES DOS SANTOS
In reply to  Larry
06/12/2024 10:26

Whoever goes there is the whole PTCC gang!! You can be sure of that!!
Brazil is going down the drain with the dollar going to around 7 reais and the **** **** neighing defending the gang that he seems to be part of!!

Tags
Rafaela Fabris

It discusses innovation, renewable energy, oil and gas. With over 1.200 articles published in CPG, it provides daily updates on opportunities in the Brazilian job market.

Share across apps
0
We would love your opinion on this subject, comment!x