Mobile Chlorine Dosing UnitWatercare Services Ltd, Auckland, New Zealand

PROJECT:

Mobile Chlorine Dosing system to boost Cl₂ residual near the end of a new CLS water main.

MTL ROLE:

MTL provided process and mechanical design, project management and commissioning services for the containerised unit to maintain Cl₂ residual due to initial low water demand. The system included the following features:

• High & low range Cl₂ gas dosing capability
• Automatic gas dosing control via PLC
• Inlet treated water and dosed treated water analysers
• Operation at water main pressures of 200 to 1600 kPa
• Hardwired emergency gas shut-off and gas leak detection systems
• HSNO compliant design
• Remote monitoring and alarms via SMS

PROJECT OUTCOME:

MTL worked very closely with Filtration Technology, the Siemens dosing equipment supplier and installation contractor to ensure the dosing unit met the high standards required.

PROJECT PARTNERS:

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