Document: NUREG-0800
Document ID: 25e52c07-8f43-4a33-a908-01ec9eb02d06
Document Type: srp
Title: LIQUID WASTE MANAGEMENT SYSTEM
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML1304/ML13044A644.pdf
Revision Date: 2023-06
Chapter: 11
Section ID: 11.2
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Content:
tive dose (person-Sv (person-rem)) calculations and cost-benefit analyses. In its review, the staff has considered the potential effectiveness of augmenting the proposed LWMS using items of reasonably demonstrated technology and should confirm that that further effluent treatment will not affect reductions in cumulative population doses reasonably expected within an 80 km (50 mile) radius of the reactor, nor is it necessary to augment the design of the system for compliance with the cost-benefit ratio of Section II.D of Appendix I. RG 1.110 describes methods for performing such cost-benefit analyses. 4. The review of the LWMS design capacity will encompass the following major areas: A. The system capability to process waste volume inventories in the event of a single major equipment item failure (e.g., outage of the primary means for processing liquid wastes). B. The system capability to accept additional wastes during operations which result in excessive liquid waste generation. C. The total system capability to process liquid wastes at design-basis source term levels is evaluated based on information presented in SRP Section 11.1 and in this SRP section. The source term is based on a combination of assumptions of failed fuel fractions, BWR offgas release rates, TS limits for halogens and noble gases, presence of activation and corrosion products, and steam generator TS limits on allowable primary-to-secondary leakage rates. The design basis of the reactor coolant and reactor steam source terms is based on: 1) an offgas system noble gas release rate of 3.7 megabecquerels per second per megawatt thermal (MBq/s per MWt) (100 microcuries (μCi)/s per MWt) measured or estimated after a 30-minute delay for BWRs; 2) an assumed 1 percent fuel cladding defects for PWRs; and 3) technical specification limits for halogens (I-131 dose equivalent) and noble gases (Xe-133 dose equivalent), as defined in plant-specific TS. D. Types and characteristics of filtration systems,