The system decontamination of ALPS water from the damaged plant of Fukushima He has been completely paralyzed since May 20 in the morning, after stopping the third line of treatment.
The device, which serves to eliminate a sixty part of the radionuclides of the waters that were used to cool the reactors, is made up of three parallel lines of decontamination.
The first two (A and B) stopped working a few days ago. The third (named C) stopped early in the morning because of the degradation of their returns.
The cause of all these problems is unknown and has not been explained by the company Tokyo Electric Power (Tepco) that directs the operations. The system ALPS It has been trying to work for several months, but in fact it does not stop encountering different problems.
This equipment developed by the Japanese group Toshiba has been presented to solve the problem of contaminated water from the damaged plant of Fukushima Daiichi, partly destroyed by the tsunami of March 11, 2011.
More than 400.000 cubic meters of water contaminated are currently stored in more than a thousand gigantic deposits hastily assembled in the atomic complex, and Tepco continues to install another forty a month to try to keep up with the continuous flow of liquid extracted from the subsoil of the site and the permanent irrigation of the reactors destroyed.
Current impact of the Fukushima accident
The impact of the disaster has been difficult for Tepco to control, as it not only involves the constant disposal of contaminated water, but the leaks of this water into the Pacific continue to be a concern. This has led various scientific studies and international organizations to monitor the situation and demand greater transparency in management. Nearly 31.200 tons of radioactive water have already been dumped into the Pacific Ocean, and it is estimated that Japan will continue to dump these waters for at least three more decades.
The risks to the environment are evident, with some species such as fish and shellfish showing radioactive traces above established levels. Although the Japanese government and the IAEA claim that the levels emitted are insignificant, fishing communities and neighbouring countries continue to express their concerns. In particular, countries such as China have imposed bans on all Japanese seafood imports in response to these radioactive leaks into the ocean.
Consequences of radioactive contamination in Fukushima
El Fukushima nuclear accident has turned out to be a disaster that continues to generate consequences, both environmental and public health. radiation leak both on land and at sea, it has caused ecological, economic and human damage that is difficult to repair. There are still doubts about whether current measures will be sufficient to mitigate the long-term effects.
Globally, the Fukushima disaster has sparked new fears about the use of nuclear energy, and has generated debates about the future of the use of renewable energy sources to replace nuclear energy.
A lot of studies They have determined that, if not handled properly, radioactive leaks from such accidents can continue to affect the environment for centuries. Since the accident, some 27,000 residents of the prefecture have been unable to return to their homes, and the situation does not seem to be improving anytime soon.
Although Japan continues to discharge radioactive water, experts recommend storing the contaminated water on land, mixed with cement, to prevent it from being released into the ocean. This would be a more viable long-term solution, as it would reduce radioactivity by 97% in about 60 years.
What is the Advanced Liquid Processing System (ALPS)?
ALPS It is a system that has the objective of filter radioactive water, removing most of the dangerous radionuclides present in it. However, this system is not able to remove some elements, such as tritium. This element, although it has a low level of radioactivity, can accumulate in the food chain and is one of the main causes of alarm for fishing and scientific communities concerned about the long-term effects of their release into the ocean.
The ALPS system has been criticized for its inability to effectively handle tritium and other radionuclides that leak into the water. Although efforts have been made by the Japanese government and the IAEA To ensure that the discharges meet international safety standards, resistance from neighbouring countries such as China and South Korea persists, with bans on fishery products from Japan.
Impact on food security and the economy
The Fukushima accident has not only affected the environment, but has also created a major economic crisis for fishing communities. Despite the Japanese government’s claims that the level of radiation is safe for human consumption, many countries, including China, continue to block the import of Japanese seafood. The implications of this ban have had a strong impact on the Japanese economy, especially in areas directly affected by radiation.
Tritium, which is one of the most present radionuclides in treated water, represents one of the main threats to the fishing industry. Although the concentrations of tritium released into the ocean are below the dangerous threshold, consumers have lost confidence in seafood from Japan, generating a negative effect on the supply chain.
Lessons learned on nuclear waste management
The Fukushima disaster has highlighted the urgency of reviewing international protocols on nuclear waste management, as well as emergency plans to prevent similar accidents. Local administrations in Fukushima have demonstrated that the radiological monitoring tasks and recovery can be effective, if carried out diligently and with international cooperation.
The IAEA has played a key role in helping Japanese authorities constantly monitor radiation levels in the environment. But questions remain about the ability of energy companies to handle disasters of this magnitude without global consequences.
The impact on public health remains a matter of debate. Although no deaths from direct exposure to radiation from the accident have been reported, psychological damage and chronic diseases among evacuated residents have increased. The international scientific community suggests that long-term health monitoring of people exposed to low levels of radiation is a crucial aspect of understanding the full extent of the disaster.
How could future disasters be prevented?
The Fukushima accident is an alarming reminder of the need for more robust contingency systems at nuclear plants. Many safety measures in place for years were not prepared for a disaster on the scale of the 2011 earthquake and tsunami.
In the wake of the accident, both Japan and other countries with nuclear plants have implemented additional stress tests and adopted new technologies to improve safety. However, some experts suggest that the only way to ensure 100% prevention of nuclear risks is to opt for alternative energy sources, such as renewable energy.
The debate will continue in the coming years as decommissioning and cleanup projects at Fukushima continue, but the tragedy is a constant reminder of the risks of nuclear dependence.
Advances in technology and international monitoring are helping to significantly reduce the effects of radiation on the population. But little is known about the long-term effects of exposure to the low levels of tritium released, as well as other radionuclides still lingering in the environment. The global community needs to continue to closely monitor the actions of both the Japanese government and Tepco, and assess whether the proposed solutions are the most appropriate to mitigate the risk.