Lead leaching into potable water : metallurgical impact due to thermo-mechanical processing of copper-alloy pipework components
Grant Data
Project Title
Lead leaching into potable water : metallurgical impact due to thermo-mechanical processing of copper-alloy pipework components
Principal Investigator
Professor Ngan, Alfonso Hing Wan
(Project Coordinator (PC))
Co-Investigator(s)
Mr Cheung Rico
(Co-Investigator)
Dr Siu Kai Wing
(Co-principal investigator)
Duration
60
Start Date
2021-03-01
Amount
5000000
Conference Title
Lead leaching into potable water : metallurgical impact due to thermo-mechanical processing of copper-alloy pipework components
Keywords
Lead leaching, Potable water quality, Copper alloys, Thermo-mechanica processing, surface segregation
Discipline
WaterMaterials
HKU Project Code
R7012-20
Grant Type
Research Impact Fund (RIF)
Funding Year
2020
Status
On-going
Objectives
(1) To comprehensively study and produce a database on the effects of thermo-mechanicalprocessing on the lead leaching in a representative collection of commercially sourceable waterpipecomponents under the General Acceptance (GA) system of the Water Supplies Department (WSD)of the Hong Kong SAR Government.(2) To use advanced microscopy techniques to understand the thermo-mechanically induced leadsegregation mechanism within potable-water grade copper alloys.(3) To establish and verify a new scaling method, taking into account the lead segregationmechanism, to predict the lead leaching effects in real-scale waterpipe networks from small-sizedtestable samples.