Concerns expressed over $316m Fukushima ice wall

A top nuclear power official has expressed concerns about Tokyo Electric Power Company’s Fukushima ice wall project.

Dale Klein, former head of the US Nuclear Regulatory Commission and a senior adviser to Tepco, told Kyodo News in Japan: "I'm not convinced the freeze wall is the best option. What I'm concerned about is unintended consequences. Where does that water go and what are the consequences of that? I think they need more testing and more analysis."
Fukushima workers
The $316m, 1500-metre wall is intended to contain irradiated water and keep Fukushima safe from the damaged nuclear reactors. It is intended to stay in use until 2020, using enough electricity every year to power 13,000 households, according to officials.

By next March Fukushima Daiichi's four damaged reactors will be surrounded by an underground frozen wall that will be a barrier between highly toxic water used to cool melted fuel inside reactor basements and clean groundwater flowing in from surrounding hills.

UK newspaper The Guardian reports that up to 400 tonnes of groundwater that flows into the basements each day must be pumped out, stored and treated – and on-site storage is edging closer to capacity. Decommissioning the plant will be impossible until Tepco addresses the water crisis.

The wall is being built with technology that has never been used on such a large scale. Tepco has also had problems freezing irradiated water – using the same method being used to build the underground wall – that has accumulated in underground trenches, raising concerns that the ice technology is flawed.

The company had safely removed 1200 of the 1500 nuclear fuel assemblies that were being stored in a pool in Reactor 4 when the tsunami smashed into the plant, knocking out backup power supplies and sending three of its reactors into meltdown.

Attempts to address the buildup of contaminated water in reactor basements suffered a serious setback last year when storage tanks sprung leaks. Meanwhile, the plant's water treatment facility, which can remove all radioactive nuclides except tritium, has been suspended several times owing to malfunctions.

For more nuclear power news

Follow Power Engineering International on Twitter




Editor's Picks
GE Propak

Helping power plants meet the challenge of water preservation

By 2035, the world’s energy consumption will increase by 35 per cent, which in turn will increase water use by 15 per cent...
AFDB

AfDB says western nations ‘hypocritical’ in decision to rule out funding coal power

The head of the African Development Bank’s (AfDB) is defending his decision to continue financing coal-fired power plants,...
Klaus Schafer

Biggest ever annual loss confirmed at E.ON

Germany’s largest utility, E.ON, has announced its biggest ever annual loss, yet its chief financial officer says the comp...
European Court of Justice

Luxembourg confirms opposition to Hinkley Point nuclear power plant deal

Luxembourg has confirmed that it will back Austria in filing a lawsuit against the European Commission for the decision to...
Peter Polak

Top Austrian lawyer says Commission unlikely to be challenged on UK nuclear power project

One of Austria’s foremost legal experts in the field of energy believes Vienna will not go through with its proposed legal...

PEI Magazine Issues



>> Current Issue           >> Past Issues

Latest Wire News

Victory Energy Reports Full Year 2014 Results and Lucas Energy Business Combination Update

Victory Energy Reports Full Year 2014 Results and Lucas Energy Business Combination Update

Pacific Energy Development Announces Year-End 2014 Results With Significant Increase in Revenues, Production and Reserves

Pacific Energy Development Announces Year-End 2014 Results With Significant Increase in Reve...

PcVue to Speak at ENTELEC 2015 and Named a Silver Scribe Award Recipient

PcVue to Speak at ENTELEC 2015 and Named a Silver Scribe Award Recipient

Trelleborg Presents Innovations That Lower Total Operator Costs at OTC 2015

Trelleborg Presents Innovations That Lower Total Operator Costs at OTC 2015

Stephen Metz Appointed as VP/Executive Director of Navy Programs at AMERICAN SYSTEMS

Stephen Metz Appointed as VP/Executive Director of Navy Programs at AMERICAN SYSTEMS


Editorial Guides

Lubrication Challenges for the Biogas Industry in 2015

The biogas industry is growing in importance as the world continues to look for alternative, clean energy sources. However...

How to cut your OPEX

How to cut your OPEX In a constantly evolving electricity market, factors such as over capacity and low coal costs can pu...

Alstom Editorial Guide: Thailand to showcase latest upgrade of Alstom's GT26 in combined-cycle

Read all about Alstom's new advanced GT26 gas turbine in the North Bangkok CCPP expansion project online with the Power En...

PLEXOS® Integrated Energy Model – Leading the Field in Energy Market Modelling

PLEXOS® Integrated Energy Modelling is an advanced software tool that employs the latest mathematical programming methods ...

Buyers Guide Companies

ComRent International LLC

Offers rentals, sales, and services of load banks for testing generators...

Advanced Energy

Advanced Energy is a global leader in innovative power and control techn...

Fluid Energy Controls Inc

ACOEM AB

ACOEM is a supplier of Fixturlaser's innovative and user-friendly equipm...

CCI Thermal Technologies Inc

A leader in the development and manufacturing of industrial heating and ...

AKG of America Inc

AKG is a worldwide design leader and manufacturer of high performance co...

Acromag Inc

CU Services LLC

Manufactures plug resistant orifices for steam line drains, recirculatio...

FLSmidth Inc

Designs and supplies pneumatic conveying systems for power, cement, and ...

Frenzelit North America Inc

Frenzelit manufactures fabric, rubber, and metallic expansion joints. F...

Buyers Guide Products

Bore Measurement

Typical applications are full bore measure...

Fixturlaser NXA Pro

This laser alignment system features many ...

RETROFIT

Braden's retrofit strengths are divided in...

Air Filtration

Braden filtration offers a wide range of f...

Expansion Joints

Braden Exhaust Expansion Joints provide a ...

PARTS & FILTERS

Braden is uniquely qualified to provide ou...

Exhaust Systems

Leader in Exhaust Bypass, Simple Cycle, Ex...

HydroJet®-Retractable Boiler Cleaning System

A major breakthrough in furnace water clea...

IK-700® - Retractable Sootblower

Designed specifically for low maintenance,...

Spare parts manufacturing / Re-engineering / CNC / CMM / Machining / workshop service

CMM/laser scanning technology (workshop, r...

Power Engineering International

Whitepapers

Understanding Moisture Dynamics in Power Transformers

In this webinar recording "Moisture Dynamics in Power Transformers" (held originally in September 23, 2014) you will have a chance to learn about the phenomena and its importance to your ...

How to lower your total cost of ownership on DC Control Power

In this whitepaper, we look at implementing battery management solutions and how smart battery management effectively lowers the total cost of DC Control power systems and the risk of their failure...

Portfolio Optimization by PLEXOS

To achieve Portfolio Optimization, PLEXOS performs the Security Constrained Unit Commitment and Economic Dispatch using Mixed Integer Programming (MIP) to minimize a cost function subject to all op...

Evaluating cogeneration for your facility: A look at the potential energy-efficiency, economic and environmental benefits

The energy-efficiency, economic and environmental benefits of cogeneration are the subject of this in-depth white paper. The paper argues that producing electricity and heat/cooling from the same f...

The Effect of Moisture on the Breakdown Voltage of Transformer Oil

Power transformers utilize oil as a heat transfer medium and a dielectric material, together with cellulose. Breakdown voltage (dielectric strength) is one of the most important parameters of trans...

Improving Mission Critical Cooling Systems With More Reliable Level Sensing

The choice of coolant level sensor may seem like an insignificant detail when designing complex machinery such as emergency generators and cranes, but if this sensor fails, the operator has no warn...

Steps Towards a Low Carbon Future: Solutions and Technologies That Will Support the Global Revolution Required

A smart grid is becoming more and more essential as clean energy becomes more dominant. In addition, the demand for electricity is expected to treble the ability to supply it over the next decade. ...

Latest Digital Edition

  Power
  Engineering
  International
Look Inside >
Cover
Current Issue

Article Archives for Power Engineering International Magazine

Latest Energy Jobs

View more Job Listings >>