Friday, September 14, 2012

Fukushima Disaster

Fukushima Disaster

March last year, the world has witnessed the second largest nuclear disaster in human history after Chernobyl. Fukushima Nuclear power plants in Japan, was hit by a wave of tsunami followed by an earthquake. This has knocked out the electrical systems and the operation of water pumps crucial to the cooling of the nuclear fuels. Generally speaking, nuclear power, when well-managed, is a viable source of energy at the cost of a very high risk during their lifetime due to the radioactive residue and waste materials after the exhaustion of the fuel rods. Generally plutonium and uranium are used as a fuel sources, and through a process called atomic fission –which is a decomposition of an atom into two different element of smaller atomic mass – these heavy elements become a number of various other elements in unstable state which emits radioactive energy. Besides uranium and plutonium, a number of other elements are being considered for use, such as Fluoride Thorium and Deuterium. Generally most of these fuel metals require enrichment, which is a process to extract atoms that are able to go through nuclear fission.

Sustainability
Besides other concerns such as nuclear proliferation or weaponization of the waste residues (or even the fuel metals), the main issue is that the waste materials can take up to few hundred years to lose its harmful radioactivity, and nuclear power is not considered sustainable –or rather, recyclable. Because Japan has very little resource in regards to fossil fuel, their energy consumption heavily depends on imported petroleum oil. For Japan, nuclear energy must have been the most viable alternative to foreign oil, and hence their high dependency on nuclear power plants for supplying the nation.


Prior Events that ultimately led to disaster
After the nuclear accident, there’s been a lot of investigation as to why such event could have occurred against claims made by Tokyo Electric Power Company (TEPCO) and the Japanese Government that nuclear plants are protected from such natural disasters. Studies have revealed that several factors have contributed to the disaster:

  • ·       Aging facility with low maintenance
  • ·       General neglect on safety precautions against earthquakes and tsunamis
  • ·       Inappropriate isolation of power facilities against tsunami and flooding
  • ·       Ineffective Government bureaucracy hindering the implementation of preventive measures
  • ·       Governments and TEPCO ignoring Safety Study reports suggesting that Fukushima plant is not able to withstand a flooding of more than 5 meters
  • ·       Despite nation’s self-claimed world’s top robotics expertise, they had not a single robot to deploy into the accident
  • ·       Officials and staffs had excessive confidence in the nation’s “technological infallibility” and the myth of safety
  • ·       Importance of saving face, reluctance to send bad news upwards


Japan drew a lot of criticism for their ineffective, inefficient and disorganized effort to contain the disaster. The government and TEPCO had poor communication with each other –not to mention they did poor job at reporting the actual truth and state of the reactors to the public and the international media – but also the issue was aggravated due to cultural tendencies where Japanese people are reluctant to inform bad news to the public or their superiors. The need to save their dignity, and the reluctance to inform the factual bad news have brought the crisis, whereas the risks and preventive methods were very well known as early as 2008 when the safety reports were written. These suggestions were not only present in the report, but were completely ignored by the decision makers.

The Aftermath
It is understandable that Japan is an island nation with no energy resources. Also the renewable energy is expensive to harness given the fact only recently these new alternative technologies for generating energies are becoming available. However, despite the circumstances, the government and the utility company officials have hid the facts and ignored warnings and studies suggesting a critical modification of the plant, not to mention reject IAEA’s suggestions and kept the actual status of the Fukushima plant to the public and the media. Results were catastrophic, not only in terms of casualties and damages done, but in terms of public and international trust and the system on how important decisions are handled. The events that happened during the unfolding of the disaster dates as early as 1991, and 2007 being the most critical year in which TEPCO ignored Tsunami studies warning the risk of tsunami flooding of the Fukushima reactor. It is simply appalling to know these facts, on how much negligence was present up to the moment the tsunami hit the plant.



References
Buzzwords. (2012). What is Nuclear? Retrieved from http://www.whatisnuclear.com/resources/buzzwords.html#enrichment

Fukushima Accident 2011. (3 August, 2012). World Nuclear Association. Retrieved from http://www.world-nuclear.org/info/fukushima_accident_inf129.html

Fukushima Nuclear Accident Update Log. (6 January, 2012). International Atomic Energy Agency. Retrieved from http://www.iaea.org/newscenter/news/tsunamiupdate01.html

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