#Fukushima : “TEPCO to `Build Underground Ice Wall’ to `Stop Contaminated Groundwater’ from Running into the Sea”

#AceNewsServices says  `TEPCO Drills freeze wells to stop contaminated groundwater

Published time: January 29, 2014 08:25
A Tokyo Electric Power Co. (TEPCO) employee wearing a protective suit and mask uses a survey meter near the spent fuel pool inside the No. 4 reactor building at the tsunami-crippled TEPCO's Fukushima Daiichi nuclear power plant in Fukushima prefecture (Reuters/Kimimasa Mayama)

A Tokyo Electric Power Co. (TEPCO) employee wearing a protective suit and mask uses a survey meter near the spent fuel pool inside the No. 4 reactor building at the tsunami-crippled TEPCO’s Fukushima Daiichi nuclear power plant in Fukushima prefecture (Reuters/Kimimasa Mayama)

The operator of the crippled Fukushima nuclear power plant is erecting an underground wall of frozen soil, which would hopefully stop radioactive water from running into the sea. However, doubts remain over whether it will fix the leak problem.

Tokyo Electric Power Company (TEPCO) pours tons of water into damaged reactors to keep the melted fuel from overheating. But the buildings, which were damaged by the earthquake and tsunami of 2011 and the consequent disaster at the plant, are allowing radioactive material to seep into groundwater and pollute the nearby sea.

In September 2013, the Japanese government announced a plan to drill a row of wells around the area. A liquid coolant running through the wells will cool the soil around them and form a frozen wall in an attempt to prevent contaminated groundwater from getting into the environment.

The work on the wall due to start Wednesday at the Number 2 and Number 3 reactors, Japanese TV station NHK reported.

The program to isolate groundwater is to cost some $320 million in construction plus run costs and is scheduled to be complete by March 2015. The wall, maintained by rows of wells drilled at 1–meter intervals, is to run 500 meters north to south and 200 meters east to west.

The Japanese government chose the approach over more permanent solutions like erecting concrete underground barriers, which do not require a constant operation of freezers and coolant pumps. They said it allows for a quick rebuilding of the wall in case it is damaged by a new quake.

The plan is not guaranteed to work, with some experts fearing the groundwater may end up seeping even deeper once the frozen wall is in place.

The soil-freezing technology has long been used for civil construction in areas of abundant groundwater, for example for building subway lines. But it is usually done temporarily, and there is no record to indicate how reliable the solution would be in the long run.

Fukushima nuclear power plant was crippled in March 2011 by a powerful earthquake and subsequent tsunami, becoming one of worst nuclear disasters in history. TEPCO has been struggling to contain the fallout from the incident, but radiation leakages continue at the facility.

The disaster triggered a massive public outcry against nuclear energy, with several countries going completely rejecting it.


Enhanced by Zemanta

#acenewsservices, #2011-tohoku-earthquake-and-tsunami, #fukushima, #fukushima-daiichi, #fukushima-daiichi-nuclear-disaster, #fukushima-daiichi-nuclear-power-plant, #fukushima-nuclear-power-plant, #government-of-japan, #japan, #tepco, #tokyo-electric-power-company

#AceNewsDesk :`Headlines – 28 January 2014′

World News Banner

Ace News Services 2014 – Providing News – Around the Globe – Daily


A policeman detains a squatter during clashes at a squatter district in Quezon city08:10

Shots fired at Thai army facility where PM Shinawatra holds meeting

Shots were fired at a Thai army facility in north Bangkok on Tuesday where Prime Minister Yingluck Shinawatra was holding meetings, Reuters reported. Two people were injured, said Chumpol Jumsai, an anti-government protest leader. “Someone fired shots. One protester was hurt and the man who fired the shots was hurt, too,”Chumpol said. Yingluck was meeting members of the country’s Election Commission on Tuesday. The commission says the country is too unstable to hold an election on February 2.

Authorities in eastern China announced a ban Tuesday on live poultry sales07:21

Poultry trading halted in eastern China after new H7N9 cases

Authorities in eastern China announced a ban Tuesday on live poultry sales. The move followed an increase in the number of people infected with the H7N9 strain of bird flu. The virus has killed 19 people in China so far this year out of 96 infections, AP quoted Feng Zijian, the deputy director of the Chinese Center for Disease Control and Prevention, as saying. More than 50 cases had been reported a week ago, and most cases have been linked to contact with poultry. The jump in cases comes during the 40-day travel period around Chinese New Year.

Japanese Government to Review Terrirtorial Waters Rights with South Korea06:30

Japan revising teaching manuals to emphasize territorial claims

The Japanese government is revising official teaching manuals to emphasize territorial rights to the islands disputed with China and South Korea, AP reported. Tuesday’s decision is to reflect the government’s official view on the territorial claims, according to the Education Ministry. The revision affects ministry-issued teaching manuals for junior high and high school social classes, but the manuals are not legally binding. The manuals currently in use do not mention the Japan-claimed East China Sea islands, which are also claimed by China. Officials also say and the reference to the Japan-claimed islands held by South Korea in the Sea of Japan is “too soft.”

Senate Agriculture committees announced Monday a bipartisan deal on a new farm bill02:39

​US farm bill deal proposes 1% cut to food stamps, continues big subsidies

After a two-year fight, the US House and Senate Agriculture committees announced Monday a bipartisan deal on a new farm bill that proposes a one percent cut to funding for food stamps while continuing to heavily subsidize major crops. The legislation is expected to cost around $100 billion a year over five years, a cut of around $2.3 billion a year from current spending levels, AP reported. The measure would cut $800 million per year, or one percent, from the $80 billion-a-year food stamp program – a decrease from House legislation that proposed a five percent decrease, yet more than the Senate’s $400 million cut. The bill released Monday also proposes a work-requirement test program for food stamp recipients in 10 states. The farm bill also continues generous subsidies for major crops like corn, soybeans, wheat, rice, and cotton, though many subsidies will shift to an insurance program, requiring farmers to take losses before any payout. Powerful meat and poultry groups said they will not support the legislation, given that the bill’s language does not delay a country-of-origin labeling program they have opposed. House GOP leaders have said they will support the deal made with the Democratic-led Senate.


19 people die from H7N9 virus in China as infections rise

The H7N9 bird flu virus has killed 19 people in China this year. The total number of human infections now stands at 96, the Chinese Center for Disease Control and Prevention announced. China has also banned live fowl trading in some areas, following more reports of the H7N9 infection in several provinces, Xinhua reported. On Monday evening, Hong Kong’s health authority confirmed a H7N9 case at a local market. It plans to slaughter about 20,000 birds to curb the infection from spreading.


Enhanced by Zemanta

#acenewsdesk, #associated-press, #china, #chinese-center-for-disease-control-and-prevention, #chinese-new-year, #east-china-sea, #government-of-japan, #hong-kong, #japan, #south-korea, #tuesday, #yingluck-shinawatra