Jun Liu

Water and Wastewater Expert

Barrie, Ontario, Canada

About

Well-versed technical expert on wastewater UF membrane, wastewater and water treatment plant design, operation and optimization, pipe and open channel hydraulics, pumping station design, piping design, mechanical systems, HVAC. Solid technical foundation of math, physics, chemistry and mechanics. Broad experience in capital work delivery and construction. Hands-on experience on wastewater treatment and collection system operation. Licensed Class 4 Wastewater Operator. Extended international work experience.

Experience

  • Senior Engineer at Indigenous Services Canada | Services aux Autochtones Canada
    Apr 2023 - Present · 3 yrs 4 mos

  • Group Lead, Water and Wastewater at Tatham Engineering
    Sep 2022 - Mar 2023 · 7 mos

  • Senior Engineer at Indigenous Services Canada | Services aux Autochtones Canada
    Oct 2017 - Sep 2022 · 5 yrs

  • Water and Wastewater Process Engineer at The Regional Municipality of York
    Jun 2010 - Oct 2017 · 7 yrs 5 mos

    As an expert and technical lead in water and wastewater operation branch, mostly in wastewater operation side, overall responsible for optimization, biological treatment studies, plant upset correction to meet compliance, minor engineering design, standard operation procedure, chemical tests, new equipment piloting/trials, new chemical pilot trials. Expert in tertiary membrane, membrane optimization achieved significant improvement on membrane clean, chemical saving and operation energy reduction. Pump performance improvement by doing pump tests, piping design and pump replacements all by internal staff and saved energy by 40% to 60%. Developed operation spreadsheets for operational performance tracking.

  • Water and Wastewater Process Engineer at The Regional Municipality of Niagara
    Aug 2008 - Jun 2010 · 1 yr 11 mos

    Water and wastewater process optimization and troubleshooting. Water filter study to extend filter run time based on particle counter readings. Facultative lagoon operation improvement. Solely in charge of CSO high rate treatment study at Niagara Falls Central Pumping Station and CSO treatment facility with funding from Environment Canada by using explosion proof samplers and automatic control. Polymer study on gravity belt thickners and secondary clarifiers. Aeration improvement. New technology and new equipment pilot.