Production of High Quality Drinking Water - Bore Water Treatment
Client: Quarry, Auckland, NewZealand
Our privately-owned client runs a successful quarry that is rich with naturally occurring greywacke rock and supplies aggregates and bulk fill. Beneath the quarry is an aquifer that gives the client access to groundwater. The local community is not connected to the mains water and sometimes struggles to meet their water needs in dry seasons.
The surrounding community does not have reticulated water and individual homes rely on 10m3 rainwater tanks for their water supply. Given the unpredictable weather patterns and often dry conditions, the residents buy tanker water to supplement their supply. The client saw this as an opportunity to supply safe drinking water for domestic consumption via tankers to the surrounding community.
However, the bore-water had higher than acceptable levels of Manganese and iron.
Infinite Water designed and manufactured a 540m3/day water treatment plant that provided a multi-barrier approach to guarantee safe and secure drinking water.
Approved by the New Zealand Ministry of Health, the solution incorporates HydroxonTM, cartridge filtration and UV treatment to ensure effective disinfection, low turbidity and reduction of elevated metals to meet NZ drinking water guidelines.
HydroxonTM utilises catalytic oxidation and co-precipitation processes. These processes are more effective than size exclusion processes such as dual media filters (DMF’s) and membranes for producing high quality water.
Filtration (turbidity & suspended solids)
Disinfection (viruses, bacteria, protozoa)
Heavy metals removal
Metals removal (including iron and manganese)
Organics reduction
Taste and odour compounds
The system is designed as a containerised package to facilitate shipment and installation. It is fully automated, with process monitoring and control to ensure stable operations.
Automated continuous processing, including sequencing and chemical additions are controlled via the PLC. The system is equipped with remote monitoring for data analysis and for ongoing service and maintenance.