Leachate Treatment for Radioactive Waste Containment Mound: Pilot Test and Design - 19098
- AECOM, Grand Rapids, Michigan (United States)
- Canadian Nuclear Laboratories, Chalk River, Ontario (Canada)
Canadian Nuclear Laboratories plans to construct an engineered containment mound (ECM) at its Chalk River Laboratories site in Ontario for safe management of radioactive and mixed waste at the facility. The ECM is designed for containment of 1,000,000 cubic meters of waste, and will be operated over a period of 50 years. Contact storm water, leachate, and other wastewater will be generated during operation of the ECM, and must be treated prior to discharge to the environment. The wastewater is projected to contain low concentrations of radionuclides and metals, as well as other cations and anions, and low concentrations of organic chemicals. Through comparison with surface water discharge criteria, radionuclides cesium-137 and strontium-90, and metals including aluminum, barium, copper, iron, lead, and manganese were projected to be present in the wastewater at concentrations that may exceed surface water discharge criteria, and were therefore targeted for treatment. Several technologies, including chemical precipitation, membrane filtration, ion exchange, and reverse osmosis were reviewed and tested on a laboratory scale using simulated wastewater prepared to replicate the concentrations of both target and non-target constituents. Based upon the results of the laboratory-scale tests, a six-week pilot test was conducted to simulate the performance of the technologies under continuous-flow conditions and determine full-scale design criteria. This paper describes the methodology and results of the six-week pilot test, and how the test results were used to inform the full-scale wastewater treatment system design. (authors)
- Research Organization:
- WM Symposia, Inc., PO Box 27646, 85285-7646 Tempe, AZ (United States)
- OSTI ID:
- 23002918
- Report Number(s):
- INIS-US-21-WM-19098; TRN: US21V1033043251
- Resource Relation:
- Journal Volume: 2018; Journal Issue: 13; Conference: WM2019: 45. Annual Waste Management Conference, Phoenix, AZ (United States), 3-7 Mar 2019; Other Information: Country of input: France; 5 refs.; available online at: https://www.xcdsystem.com/wmsym/2019/index.html
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
ALUMINIUM
ANIONS
BARIUM
CATIONS
CESIUM 137
CHALK RIVER
COMPUTERIZED SIMULATION
CONTAINMENT
COPPER
ECOLOGICAL CONCENTRATION
ENVIRONMENT
FILTRATION
ION EXCHANGE
IRON
LEACHATES
LEAD
MANGANESE
OSMOSIS
PERFORMANCE
PRECIPITATION
RADIOACTIVE WASTES
STRONTIUM 90
WASTE WATER
WATER TREATMENT