Schematic Diagram of a Temporary Storage Facility (Example)
Chart 1
Sand bags
Mound
Flexible container Water collection Protection layer
保護層
bags
(supplementary water
and drainage pipe*
フレコン
遮水層もしくは
遮水シート
Seepage control layer
or sheet
浸出水中の放射能濃度
Tank for
checking radioactive
materials in 確認用タンク
the water seepage*
collection layer)*
（集水補助層）
集水排水管
（※）
（※）
Monitoring radioactive materials in groundwater*
* The components indicated with a * will not be installed when soil and
waste is stored for short periods of time at decontamination sites.
Approach to Ensuring Safety at Temporary Storage Facilities
Prevent the removed soil stored at the storage site from dispersing or flowing out (methods include covering
with soil or packing the removed soil in containers).
Take measures to prevent rainwater, etc. from flowing in (e.g. using rainwater seepage control sheets, etc.).
Take measures to prevent the contamination of groundwater, etc. (e.g. using seepage control sheets, bentonite,
etc.).
Take necessary measures for radiation protection (e.g. restricting access to the sites, covering with soil,
shielding, etc.)
Note: When combustible waste is temporarily stored, measures to prevent fire and measures to prevent it from being mixed
with other waste need to be taken, in addition to above-mentioned measures.
Flow Diagram for the Treatment of Specified Waste and Waste
Generated as a Result of Decontamination (Fukushima Prefecture)
Specified
waste
Waste from “Contaminated
Waste Management Areas”
8,000 Bq/kg
or less
Exceeding
8,000 Bq/kg
Soil and waste generated as
a result of decontamination
Designated waste
Exceeding 8,000
Bq/kg
Incineration
Combustibles
The waste will be
treated in the same way
as designated waste.
The waste will be treated in
the same way as waste generated
outside the “Contaminated
Waste Management Areas.”
Approx. 15-31
million m3
Approx.
60,000 t/year
Approx.
500,000 t
Chart 2
Incineration
Incineration
ash, etc.
Waste which can be
incinerated
E.g.) Sludge, rice straw, livestock
manure compost, etc.
(The radioactivity concentration value at
this point will be used to determine which
treatment method should be used.)
100,000 Bq/kg
or less
Exceeding
100,000 Bq/kg
Leachate-controlled landfill sites for domestic
and industrial waste
(Mainly existing facilities are expected to be used.)
(Remaining capacity within the prefecture: approx. 1.8 million m3 for
dmestic waste and approx. 5 million m3 for industrial waste)
The national government will conduct
monitoring, etc. after treatment.
Temporary
storage
facilities
Reducing the
volume, etc.
Interim storage
facilities
Final
disposal
Flow Diagram for the Treatment of Specified Waste and Waste Generated
as a Result of Decontamination (Prefectures other than Fukushima Prefecture)
Specified
waste
Exceeding
8,000 Bq/kg
A total of approx. 1.4-13 million
m3 outside Fukushima
Prefecture
A total of approx. 80,000
t/year outside Fukushima
Prefecture
Designated
waste
Soil and waste generated as
a result of decontamination
Incineration
Incineration
Combustibles
Waste which can
be incinerated
Incineration
ash, etc.
E.g.) Sludge, rice straw, livestock
manure compost, etc.
(The radioactivity concentration value at
this point will be used to determine which
treatment method should be used.)
100,000 Bq/kg
or less
Chart 3
Exceeding
100,000 Bq/kg
Isolated-type landfill sites for
hazardous industrial waste
Leachate-controlled landfill sites for
domestic and industrial waste
(Mainly existing facilities are expected to be used.)
The national government will conduct
monitoring, etc. after treatment.
Temporary
storage
facilities
Chart 4
Schematic Diagram of Interim Storage Facilities
Waste is brought in and placed into compartments as soon as they are constructed, before the entire construction site is completed in order to
speed up the process.
Before construction begins
Under construction
Soil and waste being brought in Transportation completed
After the soil and waste have been
placed in the compartment
建設中
搬入中
Example of facilities for highly radioactive
waste which can generate leachate
Roof for preventing rainwater from flowing in (It is
installed only while the soil and waste are being
brought in.)
Example of facilities for low radioactive waste
which does not generate leachate
Soil and waste will be packed in appropriate containers
(such as flexible container bags)
Planting vegetation (after
the soil and waste
transportation is
completed)
Covering with soil (after
the soil and waste
transportation is
completed)
Radiation
monitoring
Radiation monitoring
Lid (to cover the storage after
completing transportation)
Rainwater collection and
drainage ditch
Rainwater collection and
drainage ditch
Seepage control structure (top, side
and bottom parts)
Reinforced concrete barrier covering the outside of the storage compartment
Monitoring radioactive materials in
groundwater
Seeping water collecting system and a
water treatment system
(monitoring radioactive materials)
Schedule for Preparing Interim Storage Facility
No
.
Item
Survey on basic
1 concept
Selection of site
2 for interim
FY2011
Details
4
Investigate type, condition and volume of wastes and soil, as
well as concentration of radioactive materials
Rough estimate of cost of facility structure, scale and
contruction costs, investigate potential locations (several sites)
7
10
FY2012
1
7
10
1
4
7
10
FY2014
1
4
7
10
FY2015 and beyond
1
4
7
10
1
4
Notes
Concept survey
Coordination with prefecture, municipality or locality
of selected site for interim storage facility
Coordination with prefecture,
municipality or locality
storage facility
Basic design,
4
FY2013
Chart 5
Rough estimate of cost of structure, scale and contruction
Basic
design
3 execution design for interim storage facility *Basic design(outline for various
preliminary discussions), execution design(for contracting of
Execution design
project and acqiusition of land)
4
Environmental impact
assessment, impact study of
radioactive materials on the
environment
5 Site acquisition
6
Processing of
various types of
permits for
development
Study, assessment and survey of countermeasures
on environmental impact
Study on environmental impact, assessment, and
measures for radioactive materials
Document1
research1
Land survey for site acquisition
Site acquisition for interim storage facility etc.
Field study
Survey
Consultation on development permit
agricultural land, forest, urban area, natural
park, buried cultural property etc.
Preliminary
Site
acquisition
Main consultation
(held as needed)
Construction of
7 roads etc. for
construction site
Main construction
8 of interim storage
facilities
Installation of
9 wastes etc.
Construction of roads, temporary facilities etc.
Implementation of main construction of interim
storage facilities
Installation carried out in order,
starting with completed sites
Installation of wastes etc.
Survey of use of existing disposal sites
Monitoring,
planning
Decontamination
Decontamination, installation into temporary sites, management
by municipalities and national government
(especially outside highly contaminated areas)
Model project (especially highly
contaminated areas)
Wastes from areas under
measures
Disposal of wastes
Designated wastes
Planning
installation into
temporary sites
designation of
designated
waste
Decontamination
of highly
contaminated areas
Temporary storage of highly radioactive materials etc
Begin installation to interim
storage facilities
Begin installation to interim storage facilities
Wastes from areas under measures will be disposed of in order
from FY2011
Begin installation to interim storage facilities
Designated wastes will be designated in order and disposed of as
generated
Disposal in existing sites of low level radioactive material
Temporary storage of highly radioactive materials etc
Even after the initial major decontamination, it is expected that long term,
supplimental decontamination will be needed to deal with natural pollutant
movement. Nevertheless, the national government will complete final disposal
outside Fukushima prefecture within 30 years starting from the beginning of
installation into interim storage. For final disposal, much will depend on advances in
technology to effectively isolate and condence radioactive materials and so the
national government will make efforts in research development and evaluation of
technology
Disposal in existing sites of low level radioactive material
*For decontamination, installation into interim storage facilities will start after 3 years from beginning of the installation into temporary facilities.