Ozone Technologies has been operating since 1990 and has developed and designed, manufactured and supplied ozone generating systems from 0.25 grams per hour to 200 kilograms per hour.

Our offices are located in Napier, New Zealand with full manufacturing facilities and laboratory on site. Located only five kilometres from Hawke’s Bay Airport, we are ideally situated for client access to our services. In addition, consultation and system requirements are often carried out on our clients premises - for your convenience we can come to you. This hands on approach allows greater understanding of physical requirements and enables our process engineer to tailor a process for every clients specific needs.

Ozone Technologies has the experience and technical ability to assist in all aspects of the plant and process design based on customer specific requirements. Additionally we provide long term ongoing advice, maintenance and services for all of our installations. Our state of the art digitally controlled IGBT technology with its efficient high voltage power supply (PSU) is second to none and will provide long term reliability with low installation and operating costs.

contact details...

Telephone: ++64 6 843 2881

Facsimile: ++64 6 843 2441

Email: info@ozonenz.com

active resolution...

In addition to our experience within the industry, our greatest strength lies in our ability to address client's needs from conception through to completion of the project and beyond. This is quite different from the "equipment vendor" approach of many competitors. While Ozone Technologies is an OEM (Original Equipment Manufacturer), we consider process solutions our primary function.

Implementation of a maintenance program after plant commissioning provides ongoing support and security to our clients and maintains good working relationships with them. We advise on improvements and optimization of processes involving ozone plant and equipment. References and contact details can be provided if required.

development of process...

We are involved with universities and private institutions regarding the development of new technology processes in pharmaceutical, aquaculture, horticulture and small skid mounted water disinfection systems up to 1000 m3/day.

We have developed revolutionary ozone CT control systems for applying correct ozone doses to meet NZDW standards. This system enables on line monitoring of CT, temperature, pH and takes into account the hydraulic dynamics of the reaction chambers. All parameters are electronically controlled and recorded, and time and dated stamped. This control system has proven invaluable in the opening field of gas phase ozonation for horticultural applications. Currently development is underway for monitoring systems to partner this technology.

We can advise on methods of ozone contacting, design of reaction tanks and also supply laboratory ozonation equipment for trials, either on site or in our premises. We have our own laboratory and chemist available to carry out trials to establish the correct parameters for your situation should this be required.

about the ozone plant...

Our plant provides the following unique advantages and features:

progressive technology...

Developed Processes:
Patented ozonation treatment in tanneries for removal of sulphides (260752).

Ozone Technologies have developed a revolutionary process for 'cow water' treatment for the dairy industry. This copyrighted process utilises ozone as a micro-flocculant and also for disinfection enabling this wastewater to be reused as process water. We anticipate this process to be installed throughout the Dairy Industry in Australasia over the next few years.

Horticultural Developments:
There is a continuing search worldwide for sustainable and safe alternatives to the currently used hazardous and sometimes environmentally unfriendly materials for the control of harmful bacteria, fungi and insects in greenhouse crops. Low dose ozone, recently approved by United States Food and Drug Administration as a post-harvest fungicide treatment, could be a candidate sustainable and safe pesticide in both conventional and organic production. Ozone has a short half-life and rapidly breaks down to oxygen, leaving no chemical residue.

Studies on the efficacy of low dose ozone on pathogens and harmful insects such as whitefly, its effect on crop growth and quality and its effect of beneficial organisms in a protected cropping system are only in their infancy. Much of the research has been done in laboratory conditions, with no real reflection on commercial growing practices. We seek to determine correct dosage, concentration, time and ramp rates (a still higher concentration of ozone for a few minutes) to be of real benefit to the grower, without causing plant damage.

Gas Phase Ozonation for Sanitation in Greenhouses:
A survey undertaken recently for Vegfed’s Fresh Tomato Sector of a number of greenhouse tomato growers about their methods of crop protection in 2004 and changes in pest control over the past 15 years has again identified whitefly as the number one problem facing growers. Russet mite and thrips are also pests of concern to most greenhouse vegetable growers.

This past year has seen the completion of trials using gas phase ozone to reduce fungal, bacterial and insect damage in greenhouses. Our trial partners are T.Ivecevich (of Vegfed), BOC Gases, UNITEC and Aeroqual.

.A pilot study conducted at Unitec in 2002 showed that low ozone concentrations applied at night significantly reduced greenhouse fungal and bacterial populations. Another by Unitec staff in 2004 has shown that low ozone concentrations applied at night had no adverse effects on crop growth in a commercial greenhouse. There were early indications that when plants were infested by whitefly, sooty mould did not form on the resultant honeydew. This will be investigated further in 2005.

Gas Phase Ozonation for CA and Coolstorage Facility:
Trials for gas phase ozone to control ethylene production in a postharvest packhouse are well underway. These tests are being conducted in several identical rooms with different application rates and exposure times. All monitoring is being datalogged back to a central server to provide a record (and recipe writer) for the system.

We are priviledged to be part of this very forward thinking series of trials. The instigators have invaluable knowledge of their industry, and have made their staff and laboratory available to conduct exacting measurements of each step. So far the results are proving very positive. Along with the primary goal of ethylene reduction in the storage facility we are seeing a marked drop-off in plant pathogens and fungal damaged fruit, resulting in a better packout.

While it will be some time before accurate parameters can be known, this work is set to provide nothing but benefits and longer shelflife for many applications in the postharvest horticultural industry.

other services and related areas...

Ozone Technologies offer a range of services that are not directly related to ozone treatment. We are suppliers of oxygen generators and monitoring equipment for various applications also.

Our engineers can offer expert servicing of Thomas oxygen compressors for medical applications in our workshop. Currently we service the HBDHB, talk to us if you require a service agent for your medical compressors. In addition, we have an excimer laser technician in our team.

Ozone Technologies source and supply monitoring and test equipment such as spectrophotometers, dissolved oxygen monitors, test kits for various water treatment applications (for example, chlorine, ammonia, ozone, pH), ORP meters, and are able to provide a range of reagents and spares to support this equipment.

We are also suppliers of ozone monitors for both gas and aqueous phase monitoring.