ML18033A662
| ML18033A662 | |
| Person / Time | |
|---|---|
| Site: | Browns Ferry  |
| Issue date: | 03/02/1989 |
| From: | TENNESSEE VALLEY AUTHORITY |
| To: | |
| Shared Package | |
| ML18033A659 | List: |
| References | |
| PROC-890302, NUDOCS 8903100160 | |
| Download: ML18033A662 (10) | |
Text
ENCLOSURE 4 TENNESSEE VALLEY AUTHORITY SEMIANNUAL RADIOACTIVE EFFLUENT RELEASE REPORT BROWNS FERRY NUCLEAR PLANT REVISION OF PROCESS CONTROL PROGRAM (PCP) 890 100160 890-02 PDR AGOCK 05000259 R
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1 RETS Manual Revision 4
Page 185 RETS MANUAL Section IV PROCESS CONTROL PROGRAM (ace) o 1/
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IV-1 1977p
RETS Manual Revision 4
Page 186
- 1. 0 INTRODUCTION 1.1
~Sco e
This Process Control Program (PCP) is applicable to radioactive waste solidification and dewatering of wet solid radioactive wastes generated as a result of the operation and maintenance of Browns Ferry Nuclear Plant.
This PCP is not applicable to the treatment of mixed wastes.
1.2
~Pur ose The PCP provides those controls necessary to ensure that dispos~
criteria are met by BFN processing techniques, or by vendor supplied systems, if used for dewatering or solidification.
2.0 DEFINITIONS 2.1 Absorb - To take liquid in through pores, or as if through pores or interstices of a material.
2.2 Absorbent Media or material used to absorb liquid.
2.3 Batch - An isolated quantity of waste to be processed having constant physical and chemical characteristics.
?.4 Congainer -.The primary'-receptacle in which processed
~aste (dewafered, solidif'ied oW'Ssorbed) are packagea'for disposal..
2.S 'ewatered - Met solid wastes which have had excess
~ater removed.
2.6 Free Liquid - Uncombined liquid not bound by the solid matrix of the solid waste mass; capable of flowing.
2.7 Homogeneous - Of uniform composition; the waste is uniformly distributed throughout the container.
2.8 Liquid waste - For the purposes of this
- PCP, any aqueous or non-aqueous radioactive liquid which requires solidification or absorption before disposal.
This'may include oils, chemicals, water or other liquids unsuitable for in-plant clean-up or treatment.
IV-2 1977p
j"5 i)
RETS Manual Revision 4 Page 187 2.9 Mixed waste Low level radioactive wastes containing chemical constituents which are hazardous under Environmental Protection Agency regulations in 40 CFR Part 261.
2 10 Solidification agent Material, which when mixed in prescribed proportions with liquid oz wet solid wastes,.can form a free standing product with no free liquid.
2.11 Solidify - To immobilize by use of a solidification agent or method which converts the liquid or wet solid waste to a free standing monolithic solid.
2.12 Stability - A property of the waste form such that it is able.to maintain its structural integrity under the expected disposal conditions; stabilized waste should maintain its gross physical properties and identity over a 300 year period.
2.13 Wet solid wastes - Spent powdered ion exchange resins, filter aid
- sludge, bead ion exchange
- resins, and other sludges oz slurries consisting of liquids with a high insoluble solid content.
3.0 REFERENCES
3.1
..3:2 3.3 Code of Federal Regulations (CFR) Title 10, Pazts 20, 61, and 71
[10 CFR 20',
10 CFR 61, and 10 CFR 71] Energy
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Code of 'Federal Regufationl (CFR), Title "49 '(49.CFR]
. Transportation 0
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Browns Ferry'uclear Plant Final Sa'fety Analysis Report, Volume 4, Chapter=9.3, Solid Radwaste system
'.4 Browns Ferry Nuclear Plant Technical Specifications (BFN Tech Spec) 4.8.F.l, 3.8.F.l
& 3.8.F.2, 6.10.1.f, and.6.ll.l, g, &.3 3.5 TVA Office of Nuclear, Power Radioactive Material Shipment Manual (RMSM) 3.6 Nuclear Regulatory Commission (NRC) Low-Level Waste Licensing Branch Technical Position on Radioactive Waste Classification, May 1983, Rev.
0 3.7 Nuclear Regulatory Commission (NRC) Technical Position on Waste
- Form, May 1983, Rev.
0 IV-3 1977p
RETS Nanual Revision 4
Page 188 4.0 WASTE CHARACTERISTICS 4.1 'aste Streams Three general waste streams applicable to this PCP have been identified for Browns Ferry.
These are the Condensate Waste Phase Separator (CWPS), Reactor Water Cleanup Phase Separator (RWCU), and Dry Active waste (DAW).
Other waste streams may be established based upon plant operational needs.
CWPS is fed by several
~aste sub-streams, including the Equipment Drain, Chemical Waste, Floor Drain, Fuel Pool Cooling, and Condensate systems.
RWCU is fed by.Reactor Water Cleanup only.
DAW is used for wastes generated within the regulated areas of the reactor buildings and turbine buildings which cannot be apprapriately attributed to either RWCU or CWPS.
DAW normally includes paper, plastic, wood, metal and other such material generated as a result of the operation and maintenance of the plant..
4.2 Waste Form Wet, solid xadioactive wastes consist of bead resins, filter aids
~ (such as 'Mtiva'ted charcoals or carbons),
powered resins, and.
':. siuriies. or sludg'es.
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". Wastes which may'equire segdification may include, but are. not limited to, liquids which cannot be processed using install'ed plant systems, oils, chemicals, aqueous filter media, and decontamination wastes.
Wastes are processed as appropriate to ensure that the minimum physical characteristics required by 10 CFR and disposal site criteria are met.
All Class B and Class C waste is stabilized.
On
- occasion, Class A waste (such as aqueous filter media with a concentration
> L,uCi/cc of isotopes with half-lives 5 years) may.
be solidified or stabilized by BFN.
Class A liquid wastes may be either solidified or packaged in sufficient absorbent material to absorb twice the volume of the liquid, as appropriate to the specific disposal site criteria or license requirements.
Tests are performed on those wastes which are solidified to ensure the adequacy of the solidification agent and procedural technique.
These tests are made on a minimum of three samples from each waste batch to be solidified.
IV-4 1977p
RETS Manual Revision 4
Page 189 4.3 Waste Classification Scaling factors which relate hard-to-measure isotopes to key isotopes commonly measured at BFN have been developed for each waste stream.
These scaling factors are used in the classification of the waste for disposal.
Scaling factors may be developed on an as needed basis depending on changing plant operational conditions.
Updates are performed at least every two years for waste normally considered to be Class A, on an annual basis for other wastes, or,when the scaling factors are considered to be high or low by a factor of ten.
Batch samples, separator
- samples, or sludge samples are taken for radiochemical analysis prior to processing the-waste.*hn-shipmene.
DAW samples or area smears are taken to establish the relative percent abundance of isotopes for the DAW waste stream.
Materials which do not fit within the scope of existing sca1ing factors and waste streams are sampled.
The samples are sent offsite for analysis and development of staling factors prior to disposal of the materials.
5.0 SHIP MERE NANIFESTS 5.1 Manifest Pre aration
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-.2hnifests pre'prepared fo'r each shipment of radioactive waste for
~.. disposal.
Programmatic guidance fog m'an'ifest preparation is provided through the TVA Office of Nuclear Power, Radwaste Branch to ensure that all 10 CFR and 49 CFR 'criteria are met.
Procedures for manifest preparation implement the specific requirements of 10 CFR 20.311, Transfer for Disposal and Manifests.
5.2 Manifest Trackin Acknowledgment of receipt for each shipment to a disposal site is sent to BFN Water
& Waste Processing Group by the disposal site.
Shipments for which acknowledgment is not received within the time limits allowed in 10 CFR 20.311 are traced by the TVA Office of Nuclear Power, Radwaste Branch.
IV-5 1977p
RETS Manual Revision 4
Page 190 6.0 ADNINISTRATIVE CONTROLS 6..1
'Procedures and Suzveillance Detailed procedures are written and maintained by BFN which cover plant process
- systems, waste packaging, and shipment requirements.
Surveillance Instructions are used to verify that plant Technical Speci.fications for waste processing are met.
Programmatic guidance is provided through the TVA Office of Nuclear
- Power, Radwaste Branch.
The Radwaste Branch maintains the Radioactive ilaterial Shipment i~manual and the Package Quality Assurance Program (for packages licensed under 10 CFR 71).
6.2 ualit Assurance/ ualit Control Quality assurance audits are conducted by the BFN site Quality Assurance organization, and by the TVA Division of Nuclear Quality Assurance (DNQA).
Audit findings are zeviewed by BFN management, ensuring prompt corrective actions when needed.
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Quality control measures include quarterly'ests of the resin dewatering system performed by BFN personnel upon actual dewatezed High Integrity Containers (HICs) or liners, site review of all radwaste vendor procedures before use, and second party verifi"ation by BFN personnel of end points or acceptance criteria in ven'doi procedures 'uality contiol of. so'lidification methods is performed'through controlled testing of.a miaimum.of.three samples from each'batch to'e solidified.
Proportions of sofidification agents are eitablidhed'which meet the standards for waste form and free liquid criteria.
6.3
~Tnninin Personnel involved in processing radioactive waste for shipment are trained in site proc'edures, regulatory requirements, and disposal site criteria.
Training and retraining sessions are held when needed to support operations.
Retraining is required on an annual basis to maintain qualification.
Personnel found not complying with procedures may have their qualifications revoked by the Water and Waste Processing Group Supervisor, if deemed necessary.
Qualifications may be reestablished through completion of retraining, 'and approval of the Water
& Waste Processing Group
.Supervisor.
IV-6 1977p
RETS Manual Revision 4
Page 191 6.4 Retention of Records Records are maintained to furnish documentation of items or activities affecting quality.
guality assurance records are stored in accordance with plant instructions and the TVA Nuclear guality Assurance Manual.
Retention times for radwaste records are established in the Radioactive Material Shipment Manual.
7.0 APPENDICES 7.1 Solidification Descri tion Topical Report
Reference:
None System or method in use:
None PLant/Equipment Interfaces:
None 7.2 Dewaterin Description Topical Report
Reference:
DW-11118-01-P-A, Chem Nuclear Systems, Inc.,
CNSI Dewatering Control Process Containers, and RDS-25506-01-P, Chem Nuclear Systems, Inc,, RDS-1000 Radioactive Waste Dewatering System, Rev.
0
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NOTE:
See appended letter of interim approval Kvom NRC to TVA of
'-:Hag 6, 1988.
System or method in use.'acuum'dewatering using portable air driven diaphragm pumps and 10 HP electric high vacuum pump; and/or, Vacuum dewatering/high speed drying using the CNSI RDS-1000 Radioactive. Waste Dewatering System Plant/Equipment Interfaces:
See appended letters of February 11, 1987 and October 16,'987 from TVA to NRC.
(RIMS 8L44 870211 808 and NI.44 871016 807).
1977p IV-7