for Japanese


30 January, 2020

ALPS Achieves Treatment Volume of One Million Tons in Less than Seven Years

On the evening of January 24, the total volume of contaminated water treated by the Advanced Liquid Processing System (ALPS) at the Fukushima Daiichi Nuclear Power Plants (NPPs) surpassed the milestone of one million tons. ALPS is a product of Toshiba Energy Systems & Solutions Corporation (Toshiba ESS).

ALPS is used to treat wastewater that has first gone through a reverse-osmosis process to remove cesium and is then desalinated to separate the fresh water. ALPS can then remove as many as sixty-two kinds of nuclides.

At the Fukushima Daiichi NPPs, operation of the first ALPS system began in March 2013, and additional systems were installed in September 2014. In little less than seven years from the start of the operation of the first one, they have treated a combined total of one million tons of contaminated water.

Goro Yanase, vice president and chief nuclear officer (CNO) of Toshiba ESS’s Power Systems Div., released a comment after the achievement, stressing that the ability to treat one million tons of contaminated water means that the company’s technology has consistently contributed to dealing with the contaminated water at the Fukushima Daiichi NPPs.

The cesium is first removed from the contaminated water—reactor-cooling water and ground water flowing in the buildings—using Toshiba ESS’s Cesium Adsorption Instruments (SARRY II), from which the freshwater component for further reactor cooling is separated. The remaining wastewater from the reverse-osmosis process is then treated by ALPS.

No other large-scale system in the world can remove as many as sixty-two kinds of nuclides (but not tritium). Based on a design concept from the American firm Energy Solutions Inc. (now part of Atkins), Toshiba ESS was responsible for its detailed design, production and installation. The maximum treatment capability per day for the first and each of the subsequent systems is 750 tons.

Since their delivery, Toshiba ESS has continuously provided support for their operation, and has been engaged in making improvements and conducting replacement work, contributing to the high operating rates.


This site uses Akismet to reduce spam. Learn how your comment data is processed.

SNS facebooktwitter

NPPs Map


Grossi on Fukushima: Marking a Decade Since the Accident

10 March, 2021
Grossi on Fukushima: Marking a Decade Since the Accident04:11

Recent News

18 November, 2021
METI Minister Speaks to IAEA International Conference on Decade of Progress Since Fukushima Daiichi Accident
15 November, 2021
Nuclear Energy’s Contribution to Achieving SDGs
8 November, 2021
COP26: Prime Minister Kishida Announces Additional Contribution of USD10 Billion for Climate Change Measures
30 October, 2021
Reelection of Suttsu Mayor Means Literature Investigation for HLW Disposal Will Continue
21 October, 2021
Kishida Makes First Visit to Fukushima Since Becoming Prime Minister
15 October, 2021
LDP Adds SMR Development and Nuclear Fusion to NPP Restarts in Its Policy Manifesto
7 October, 2021
Kishida Administration Inaugurated, with New METI Minister Hagiuda Holding Press Conference on Taking Office
6 October, 2021
IAEA Holds 65th General Conference in Vienna, with Japanese Minister of State for Science and Technology Delivering Statement in the General Debate
30 September, 2021
JAEC Releases 2020 White Paper on Nuclear Energy
17 September, 2021
NRA Permits Shimane-2 under New Regulatory Standards
14 September, 2021
IAEA Deputy Director General Evrard Visits Japan in Advance of Safety Review of ALPS-treated Water
1 September, 2021
Evaluation Report Issued by IAEA’s Review Mission to Fukushima Daiichi: First Visit since 2018
24 August, 2021
METI and IAEA Agree on Further Review Missions to Fukushima Daiichi
4 August, 2021
JAEA Restarts High-Temperature Engineering Test Reactor “HTTR”
2 August, 2021
Information about Fukushima Daiichi NPS Water Treatment
28 July, 2021
METI’s Committee Shows Rough Draft of Next Strategic Energy Plan
2 July, 2021
Mihama-3 Restarted After Decade-long Hiatus: First Restart in Japan of a Reactor Operating Beyond 40 Years
28 June, 2021
Mihama-3 Restarts after Decade-long Hiatus
25 June, 2021
New Canada-Japan Partnership Supports Greater Collaboration to Meet Climate Change Objectives and Net-zero Goals
24 June, 2021
METI Issues New Green Growth Strategy Through Achieving Carbon Neutrality