CANDU/ACR/EC6/AFCR Materials Degradation, Process Chemistry and Corrosion; Environmental Qualification AssessmentsAECL-CANDU: Process chemistry, materials degradation and corrosion, equipment qualification, and environmental qualification investigations/assessments on numerous CANDU, ACR, EC6, and AFCR process systems.Highlights:• Degradation mechanism analysis to support high energy line break assessments (HELBA) for CANDU 6.• CANDU/ACR/EC6/AFCR material degradation, radiation mechanisms, and mitigation.• Bruce Power Pressure Tube Inspection - REMAS crew supervisor and technical lead.• Revision/updating of Chemistry Design Manual for CANDU 6.• Bruce Power BRIMS development – chemistry and material support.• Various engineering evaluations, documentation tasks, and presentations to middle & senior management.• Technical review of CANDU/ACR/EC6 design documentation: HTS; AGS; resin transfer system; moderator system, D20 collection and clean-up system; shield cooling system; VRS, liquid poison system; purification systems.• Annulus Spacer Qualification – Test Lead.• Technical Analysis/Studies: Activity transport in CANDU/ACR/EC6 HTS; Hydrogen generation due to LOCA; Hydrogen generation due to waste material radiolysis (waste storage). • Environmental Qualification Assessments (author) – CANDU materials & components.• Technical study of ACR hot test loop purification system, loop lay-up, system reconfiguration, and associated documentation.• Numerous technical investigations/assessments of nuclear processes, materials, and consumables.• Strong technical knowledge of radioisotope production methodology & chemistry, radiation effects on materials, equipment evaluation and selection for nuclear applications, and hot-cell design & operation.• Technical assessments of the AFCR moderator and PHT purification systems with use of thorium fuel.• Assisted in developing Recycled Uranium & Natural Uranium Equivalent technical specifications.

Isotope Processing Facility Design & Operation; Radioactive Waste Processing, Transfer, Storage, and Waste Canister-Welding Design & Qualification; Industrial Process Chemistry.AECL-MMIR Engineering Design Team - process flow-sheet development, process & equipment design, process & equipment specification, prototype equipment development & testing, commercial equipment selection, and equipment & process qualification for Chalk River Laboratories NPF Isotope Processing Facility.• MMIR-NPF Highly Enriched Uranium (HEU) waste processing system design/development and qualification testing; waste storage vessel design; waste transfer system design; welding equipment design, development & qualification, and welding procedure development.• Design, assembly, and testing of a prototype welder head for closure of HEU waste canister from the Chalk River Isotope NPF.• Developed the weld acceptance criteria for the weld closure on the highly radioactive NPF calcination and overpack “vetted” vessels. Utilized knowledge of CSA N285, ASME BPVC Sec III, ASME BPVC Sec V, and ASME BPVC Sec IX.• Evaluated sub-system designs in the CRL NPF hot-cells. Provided recommendation and guidance on system replacement or re-design.• Orchestrated shielding verification modeling and performed design for modifications for CRL isotope waste transfer components (inter-cell transfer portal assembly, in-cell waste storage array, waste storage baskets, and waste transfer flask).

4.5 MW Co-generation Demonstration PlantNatural/Biogas Electrical Generation Utility/Chemical Process Industry: Process flow-sheet development, process test-work, plant design, equipment selection, plant construction, commissioning, process monitoring/optimization, sub-process re-designs, operations support, and on-site engineering support.• Designed, constructed, and commissioned plant material process systems, polymer make-up and dosage facilities, solids extraction/treatment systems, metals recovery methodologies, and solid-liquid process treatment systems. Trained operators on the theory and use of these systems.• Developed and instituted employee safety protocols and detection systems plant-wide for gas detection and equipment/employee exposures.

(1) R&D for new target processes; feasibility studies of chemical processing technologies applied to industrial solutions/solids.(2) Process engineering to take applications from lab testing, through piloting, and on to large-scale development. Develop project economic models for full-scale projects.(3) Plant construction (team member), process commissioning. (4) Plant circuit troubleshooting and process optimization.(5) Industrial process treatment system design and operation.The principal subject of my research pursuits was the application of target lixiviant solutions to solids, in conjunction with the use of ion exchange and/or chelating agents, for the recovery of heavy metals, precious metals, cyanide, and/or contaminants. I directed and performed all mining related research towards the development of new metal and cyanide extraction and recovery techniques. This research focused on chelating agents, primarily resins, with applications centered on improving recoveries in the minerals industry, particularly precious metals systems. The research led to one patent and one provisional patent. The practical application of this research has been manifested in numerous on-site field pilot operations and implemented at a number of full-scale plants worldwide.Organized and conducted on-site pilot operations (USA, Canada, Australia) for testing and demonstrating the use of chelating agents in the capture and recovery of precious metals, cyanide, and heavy metals from mill process streams such as tailings from leach or CIP circuits. These projects demonstrated the efficiency of chelating resin agents in the capture of heavy metals, gold, silver, cyanide, reducing costs and contaminant loads in waste streams by augmenting cyanide re-use, enhancing recovered metal values, and decreasing processing costs. Piloting data was used to configure and size the subsequent full-scale hydrometallurgical plant (adsorption, elution, and resin transfer facilities).