Carbon Dioxide DosingWatercare Services Ltd, Auckland, New Zealand.

PROJECT:

Mobile CO₂ Dosing Skids for potable water pH control.

MTL ROLE:

Watercare identified the need for two mobile CO₂ Dosing units for temporary deployment to ensure potable water pH compliance with NZDWS as new concrete lined steel watermains are entered into service. MTL provided ‘fast-track’ process and mechanical design, project management and commissioning services for containerised units with the following features:

• High and low range CO₂ dosing capability
• Dual pH analysers
• Operation at watermain pressures of 200 to 1100 kPa
• Utilising existing water main connections where possible
• Remote monitoring and alarms via SMS
• Mains power or generator connectivity.

PROJECT OUTCOME:

MTL worked very closely with Filtration Technology, the Siemens dosing equipment supplier and ‘turn-key’ contractor for supply and installation of the dosing units. The dosing units were installed and successfully commissioned within the fast track timeframe of 14 weeks.

PROJECT PARTNERS:

Ergo Consulting Ltd (Electrical & Controls), Filtration Technology/Kinetic/PLNZ.