What is ozone water treatment?
Ozone (O₃) is a powerful, naturally occurring oxidiser — roughly 3,000 times faster than chlorine at killing bacteria, viruses and protozoa, and the only widely-deployed disinfectant capable of reliably inactivating chlorine-resistant pathogens like Cryptosporidium and Giardia. Unlike chlorine, ozone leaves no chemical residue, no taste, and no harmful by-products such as trihalomethanes (THMs) or chlorates. After contact with water it reverts to pure oxygen. Ozone is generated on demand from ambient air or oxygen using corona-discharge generators, dissolved into water through a contactor, given sufficient contact time to achieve the required CT (concentration × time) value, and any excess gas is destroyed before release. This makes ozone the cleanest, most effective disinfection method available — and the standard choice for premium bottled-water producers, municipal drinking water plants and food processors worldwide.
Applications we treat across New Zealand
Ozone is used wherever water quality, hygiene or product purity matter. Our installed base across New Zealand and the Pacific includes: bottled and natural spring water plants (bromate-controlled disinfection, ozone destruct, CIP); council and municipal drinking water (primary disinfection, manganese and iron oxidation, taste and odour removal, Taumata Arowai compliance); recirculating aquaculture systems and hatcheries (pathogen control, dissolved oxygen enhancement, fine-solids removal); food processors and packhouses (wash-water sanitation, surface disinfection, cool-store mould control); wineries and breweries (barrel sanitation, tank CIP, replacing chlorinated sanitisers); dairy processing facilities (chemical-free CIP, raw-water disinfection); industrial cooling towers and process water (biofilm control, Legionella prevention); leachate and PFAS-contaminated waters (advanced oxidation with foam fractionation); and greenhouse irrigation (root-zone pathogen control without chemical residues).
How we design your system
Every ozone water treatment project starts with a water-quality and process audit. We need to understand your source water (bore, surface or municipal), target flow rate, the contaminants of concern (microbial, organic, inorganic), downstream processes, regulatory requirements (DWSNZ, Taumata Arowai, MPI, BRC, HACCP, FSANZ) and your existing infrastructure. From there our engineering team produces a fully documented design package: process flow diagram, P&ID, ozone-demand calculation, contactor sizing, CT-value modelling, control philosophy, instrument list and a complete bill of materials. We design and build in our own Napier workshop using only ozone-compatible materials (316L stainless, PVDF, PTFE, Viton, ozone-grade EPDM). Systems are fully tested and commissioned before being shipped to site.
Maintenance, safety and ongoing support
Ozone is highly effective but must be handled correctly. All our systems include dissolved ozone monitoring, ambient ozone safety detectors, automatic shut-down on alarm, and ozone destruct units to ensure no off-gas leaves the contactor. Operators are trained on site and receive a full O&M manual along with as-built drawings. We offer scheduled preventative maintenance contracts (typically annual or six-monthly), 24-hour callout service from our Napier base, and remote monitoring options that let our engineers diagnose performance issues without a site visit. Generator dielectrics, gas-side desiccants, oxygen-concentrator molecular sieves and PSA valves are stocked locally so we can keep your plant running.
Why choose a New Zealand-based ozone supplier?
Most ozone equipment in the world is built in Europe or North America by suppliers who have no presence in this part of the world. When a generator dielectric fails on a Sunday, that matters. We manufacture in Napier, hold critical spares in stock, and our engineers can be on site anywhere in New Zealand within 24 hours. Our systems are compliant with NZ electrical standards (AS/NZS 3000), built to the conditions of the Pacific (high salt-air corrosion in coastal applications, seismic restraint), and designed to meet New Zealand drinking-water, food-safety and aquaculture regulations from day one. We work with Coca-Cola Amatil, Fonterra, Indevin, Craggy Range, DB Breweries, Timaru, Whanganui and Waitaki District Councils, United Fisheries and dozens of small and medium NZ producers.
