Elka Anastasova

State Enterprise “RAW”

SD” Disposal Facility for RAW -Novi Han”

Eleventh Annual Meeting of the International Decommissioning Network (IDN), 5-7 December 2017

1964 1994 1961

ИРТ-

2000

Time

2004 2006 2000

Reconstruction

Works

1994 1996 1998

Back in

operation

SE “RAW”

was established

SD “DFRW - Novi han”

was joined to SE “RAW”

2012 2025 2008

SD “Decommissioning”

was joined to SE “RAW”

SD “National Disposal

Facility

for Radioactive Waste”

Decommissioning of the

SD “DFRW-Novi han”

The “DFRW-Novi Khan” accepts radioactive waste generated from nuclear

applications in industry, medicine, research and education in Bulgaria

SE “RAW”, SD “DFRW - Novi Khan”

Concrete trench, that consists of eight separate cells– 200 m3

Bore hole for spent sealed sources– 1 m3

Disposal vault for LLW and ILW – 237 m3

Facilities in operation by 1994.

Accepting and preparatory laboratory complex (APLC)

Abrasive decontamination Press System Unit for liquid RAW

treatment

Cementation Unit

In the Accepting and preparatory laboratory complex there is a system of specialized workplaces used for acceptance control and processing of LLW

The Hot Cell is used for

acceptance control and

dismantling of containers

with SRS, used in

medicine and industry

Hot cell

Compliance with the national strategy According to the national strategy for management of

SNF&RAW, by 2025 should start the real decommissioning activities of SD ” DFRW-Novi Han "

Availability of resources The main source of funding is the State Budget – there are two Funds established - "Decommissioning" and “RAW".

Legislation During the recent years the Bulgarian legislation in the field of nuclear energy is updated in conformity with the European legislation. Additionally, we follow the recommendations of the IAEA.

Stakeholders It is important to inform stakeholders about the

decommissioning program of the DFRW Novi Han and to be involved in public discussions and decision-making.

RAW management

The generated RAW streams according to their final point of management are divided into the following main types:

Materials that meet the criteria for conditional or unconditional release from regulatory control;

RAW streams, which after processing meet the criteria for disposal at the NDF – Radiana;

RAW streams that do not meet the NDF WAC– DSRS which are dismantled in the APLC and the HC and temporarily stored on the site in specialized containers and drums for future repackaging (encapsulation, placing in canisters, etc.) and transfer for disposal/long term storage in the future storage/disposal facility .

Technological and Safety issues

Free release Body at the SD “

Decommissionig 1-4 Unit”

SD “DFRW-Novi Han”

SD NDF-Radiana

SD”RAW-Kozloduy”

DSRS ?

The facilities of the “DFRW Novi Khan" are relatively

independent concerning their location, physical and

radiation protection, monitoring, etc. This condition allows

decommissioning of the facilities to be implement

separately in stages.

In the Preparatory Stage (By 2025) all the spent

radioactive sources (DSRS) and RAW located at the

surface of the site will be removed from the containers,

characterized, treated and packed according to their type

(the RAW stream to which they refer). Some of the RAW

packages are transferred to the SD “RAW-Kozloduy” for

subsequent preparation for disposal, while other parts are

temporarily stored in containers until a decision is made for their management.

•Removal and processing of the over-ground RAW

Apr.2016 Nov.2017

Characterization of the historical radioactive waste by gamma scanning

system

Gamma scanning system is

designed for identification and

quantification of gamma emitters in

packages of RAW by assessing the

measured gamma spectrum on the

surface of the package.

Repacking and labeling of the characterized drums

The Drums with

radioactive waste, are

sorted and labeled by

the following features:

-type of RAW -

compactable, building

waste, metal, soil, etc .;

- Specific activity;

- A gamma dose rate.

Year Industry Medicine Research

Activity, Ci Volume, Weight, cub.m., kg

Activity, Ci Volume, Weight, cub.m., kg

Activity, Ci Volume, Weight, cub.m., kg

1967 370 kg 0.102 118 kg 1968 93.158 400 kg 152.81 156 kg 0.239 731 kg 1969 114 1004.5 kg 0.297 5795 kg 1970 440 250 kg 2.232 1000 kg 1971 250 1.836 400 kg 975 kg 1972 442 0.441 2137 kg 1973 618 45 kg 826 kg 1974 752 100 kg 4.896 2685 kg 1975 938 1449 kg 3.177 323 kg 1467 kg 1976 703.2 3254 kg 3.087 73 kg 321 kg 1977 428 0.096 cub.m. 2.597 0.04 cub.m. 1.074 cub.m.

1978 662.5 0.3 cub.m. 3.69 0.02 cub.m. 0.69 cub.m. 1979 797.69 0.003 cub.m. 3.15 0.005 cub.m. 0.1 0.49 cub.m.

1980 1010 0.17 cub.m. 4.458 0.007 cub.m. 0.03 cub.m. 1981 695.5 0.005 cub.m. 2.671 0.003 cub.m. 0.059 0.345 cub.m.

1982 798.3 1.39 cub.m. 4.323 0.002 cub.m. 0.054 cub.m.

1983 1020 0.14 cub.m. 3.14 0.26 cub.m. 0.025 0.129 cub.m 1984 1438.6 0.16 cub.m 3.7 0.031 cub.m 1.28 6.6 cub.m 1985 2100 3.5 cub.m 1.328 0.033 cub.m 4(1?).23 cub.m

1986 1492.97 2.37 cub.m 1.93 0.0039 cub.m 1.7 cub.m 1987 4122.66 3.1 cub.m 3.93 0.045 cub.m 5.0 cub.m 1988 2451 9.138 cub.m 2.66 0.041 cub.m 0.184 2.123 cub.m 1989 1743.13 2.009 cub.m 1.92 0.452 cub.m 3.57 1.67 cub.m 1990 921.76 5.66 cub.m 1.007 0.765 cub.m 0.144 2.256 cub.m 1991 192.6 3.721 cub.m 0.957 0.087 cub.m 0.232 2.625 cub.m 1992 215 18.1 cub.m 0.5 0.019 1.9 cub.m 1993 74.79 1.26 15.1 1.26 1994 384.9 0.1 cub.m 0.1 cub.m 5.7 cub.m Общо 24899.758 211.997 7.112

Strategy for Decommissioning of SD “DFRW-Novi Han.” (cont)

The Decommissioning of the historical vaults and remediation of the site

of “DFRW-Novi Han“ will start after 2025. The resulting radioactive waste

will be processed and transferred to disposal facilities.

RAW Removal from the historical

vaults

and dismantling the vaults

RAW treatment, conditioning, packing and transfer for

long term storage/disposal

Site

remediation

Stages of the SD “DFRW-Novi Han”

Decommissioning

RAW Removal from

containers

at the surface of the site

Review of the existing

documentation - shipment

documentation,

operational records

END-POINT by 2030

The APLC and HC facilities will remain at the site of

DFRW- Novi Han by the completion of all DSRS

activities – dismantling, characterization,

decontamination, repackaging for future disposal/long

term storage.

Remediation of the waste-free site will be performed.

2017 2025 2030

THANK YOU FOR YOUR

ATTENTION!

БЛАГОДАРЯ ВИ ЗА ВНИМАНИЕТО!

Държавно предприятие

„Радиоактивни отпадъци”

1797, гр. София, бул. „Г. М.

Димитров” № 52 А, ет. 6, тел.: 02/90

35 100 e-mail: info@dprao.bg