Food & Hygiene Ozone Treatment
The food and bevarage industry faces a number of challenges in order to advance towards a more sustainable and environmentally friendly production. This comprises, among other, reduction of chemical use, water consumption and energy preservation. Ozonetech participates in these advancements by offering an innovative technology which can reduce the environmental foodprint while at the same time improves profitability and product quality.
Sanitation of process equipment
Closed process equipment which comes in contact with fresh or processed food and beverage, such as pipes, vessels and evaporators must be kept clean and sanitized in order to maintain proper level of hygiene and work environment. The stongly oxidizing characteristics of ozone makes it a viable complete replacement for traditional chemical disinfectants. Typical heat treatment of components such as heat exchangers and valves can also be avoided. Ozone provides this capability in all industrial food and beverage segments such as:
- Sauce production
- Dairy producers and milking systems
- Juice processing
- Handling of fresh produce like fruit and spices
- Water bottling plants
- Personal care production plants
Filling & packaging
To achieve prolonged shelf-life, ozone technology provides effective sanitation of packages and rinsing of bottles, both for beverages, foods, spices and highly viscous fluids such as sauces, ketchup and mustard.
Pipes, vessels & heat exchangers
Any type of process equipment such as piping systems, heat exchangers and storage tanks which are in contact with food product need to be thoroughly sanitized in order to maintain a high level of standard and to avoid spoilage and reduced durability. Ozone can be used a replacement for heat treatment thanks to its powerful disinfection and oxidation potential, especially for heat exchangers, valves and piping which are typically prone to organic fouling and bacterial growth. Ozonetech's system is easily integrated into the exisiting process equipment and can be used both for flow-through type treatment or recirculating cleaning cycles.
Rinsing & conveyor belts
During handling of fresh produce like tomatoes, potatoes and lettuce it is of utmost importance to avoid cross-contamination of bacteria and other microorganisms that may arise from growth on open process equipment, for example conveyor belts. Upon utilizing ozone as a sanitizer, the only bi-product is oxygen (which is the natural break-down compound of ozone). This makes a solution from Ozonetech an environmentally friendly alternative to ensuring high standards and freshness in the fresh food handling procedures. Thanks to its non-organic, intrinsically natural characteristics, ozone is an ultimate compound for rinsing vegetables, fresh-cuts and other non-processed products.
Many food processing facilities are dependent on cooling loops and towers for low temperature storage or temperature control of purified water (PW) used in production. Ice water based cooling systems are prone to microbial growth which clog filters and enhances the risk of legionella outbreaks and general non-hygienic conditions. Ozone technology provides a very efficient way of ridding the system from all potential growth of bacteria and mold. It provides a microbe free environment at with the following benefits:
- Elimination of biofilm
- Very low operational cost (between 0.2-0.5 kW total input power depending on the flow and volume of the cooling system)
- No harmful by-product build-up
- Very gentle on all materials
Ozonetech possesses experience and deep knowledge in the field of cooling systems. Please go to this section for more information.
Benefits from powerful disinfection and cleaning using ozone
Ozone has an inherently high oxidation potential, in other words, it has a high ability of oxidizing compounds it comes in direct contact with. It generates a series of chemical pathways upon reaction with organic compounds, producing radicals which display an even high oxidation potential compared to ozone itself. This provides very high disinfection capability and complements traditional chemicals when it comes to breaking down residues of fat, proteins and corbo hydrates.
Ozone cannot be stored which is one of its main application benefits. It eliminates the need to store and handle chemicals that are traditionally used for disinfection and cuts the costs for consumables. Ozone is produced from oxygen by exposing a gas feed to a voltage field, called Corona Discharge technology. High concentration ozone is produced by Ozonetech's water cooled and stable system with low power consumption.
Compared to other cleaning and disinfection agents, ozone holds many advantages which are outlined in the table below:
|Acetic Acid (cleaner)|
|Chlorine Dioxide and Chloride Hypoclorite (sanitizer)|
|Ozone (cleaner, sanitizer)|
|Sodium Hydroxide (cleaner)|
|Paracetic Acid (sanitizer)|
A novel technology for Clean-in-Place (CIP) systems
For closed process equipment in the food and beverage industry, ozone completely eliminates the need for traditional, organic and chlorine based disinfectants. This reduces the consumables cost and handling. It also makes typical CIP cycles more effective:
- Eliminate the need for final disinfection rinsing thanks to oxygen being the only bi-product. This enables a higher production capacity.
- Total disinfection time can be reduces owing to the high disinfection potential of ozone compared to traditional organic compounds
- By ozonating pre-rinse water, the main cleaning phase can be made more effective due to the high oxidation potential of ozone. This may lower the application temperature or the amount of chemicals used.
- Disinfection volumes can be reused, saving money and securing a lower environmental footprint
These benefits are conceptualized in the image below.
Water & wastewater
Since ozone does not leave any harmful by-products, ozonated disinfection water can be reused for other CIP phases, such as pre-rinse. In this respect, ozone disinfection can reduce the water consumption of the whole CIP process. Reduced water consumption means less load on wastewater treatment plants. Some wastewater effluent is inevitable in any food & beverage plant. Our ozone systems break down industrial wastewater COD, TOC and BOD effectively and can be integrated into existing wastewater treatment plants. Read more about BOD and COD treatment here.
Reduce energy consumption
Thanks to the benefits of cold water disinfection, large amounts of energy can be saved, which would otherwize be used to for hot water or vapor. This makes ozone a smart choice both in terms of operational costs and the environment.
Lower chemical consumption and handling
For disinfection, ozone completely eliminates the need for traditional chemical dosing, which lowers the chemical costs. It may be used in combination with cleaning agents to enhance the cleaning efficiency, thereby further reducing the amount of cleaning agents or required water temperatures.
In summary, ozone presents en effective way to keep fresh products and process equipment sanitized, saving water, energy as well as chemical handling and consumables costs. Don't hesitate to contact Ozonetech today if you aspire to move towards a more sustainable and environmentally friendly production.