PROCESSING EQUIPMENT & CIP DISINFECTION

- - - USING OZONE OXIDATION - - -

Ozonetek offers a chemical-free solution for keeping food and beverage processing equipment

as well as closed cooling systems hygienic and sanitary.

Prevent Biofilm Build-Up

Increase Water ORP Levels

Lower Bacterial Counts

Reduce Chemical Expenses

Interest in ozone as a method of sterilisation has increased in recent years as regulations and consumer demands rise for safer, more environmentally-friendly alternatives. Since ozone reverts to pure oxygen once it encounters contaminants such as germs, viruses, and microbes that may cause surface or air contaminations, it makes ozone the natural choice.

By combining our ozone treatment with hydrogen peroxide, we increase the Oxidation Reduction Potential (ORP or Redox Potential) of the water. The higher the reading, the more oxidizing it is. Our controlled system switches off once the desired ORP level has been reached.

Once oxidisation is complete, the hydrogen peroxide will revert back to water and oxygen.

  • Ozone-enriched water can be sprayed directly on floors, drains, walls, wettable equipment and into tanks
  • Ozone can also be circulated through closed water piping systems to remove biofilm and prevent it from building up again
  • Eliminates the need for personnel to handle, mix and dispose of harsh chemicals associated with sanitation
  • Leaves no residue and reverts to oxygen once oxidation is complete
  • Ozone is generated on-site either via UV lamp or corona discharge
  • Setup can be as static or mobile for easy-to-use CIP
  • The system will circulate until the desired ORP level has been reached
  • ORP monitors allow for real-time monitoring of ORP levels

INDUSTRIES & APPLICATIONS

CLOSED WATER SYSTEMS
DAIRY & MILK PRODUCERS
FRUIT & VEGETABLE PRODUCERS
BOTTLING PLANTS
BREWERIES & WINERIES
FOOD PROCESSING

THE 5 STAGES OF BIOFILM

Graphics by Peg Dirckx, David Davies and Karin Sauer, courtesy of Dr. Gregory Schultz, WUWHS 2008, Toronto.

Biofilm under a microscope
Source: UCLouvain

1

Stage 1: Attachment (initial adhesion)

A very fine organic monolayer is deposited on surfaces exposed to water. This begins within moments of exposure to water, even sanitary municipal water. It is reversible if flushed or killed immediately and not re-exposed.
2

Stage 2: Aggregation and Irreversible Binding

These then switch on a mechanism to secrete EPS (Extracellular Polymeric Substance) that affixes them to the surface and holds the cells together in a protective matrix. This matrix protects them against detergents, antibiotics, most chemical disinfectants and even abrasive scouring.
3

Stage 3: Colonisation and Proliferation

Once the protective matrix is formed, the cells divide and recruit other cells through a unique form of chemical communication that identifies it as a hospitable environment.
4

Stage 4: Maturation

Formation of a fully functioning biofilm, with a three-dimensional structure containing cells packed in clusters with channels between them to transport water, chemical communication, nutrients and waste removal. Any microbe, pathogenic or not, may become enmeshed in the matrix.
5

Stage 5: Dispersion & Multiplication

Microbes detach from sections of biofilm and disperse, releasing free-floating microbes for further colonization. This is how the re-initiation of a new biofilm begins. Pieces spread downstream and can repair damage to the existing matrix if not continuously countered.

- - REFERENCES - -

Recent Ozone Applications in Food Processing and Sanitation

By Rip G. Rice, Ph.D., Dee M. Graham And Matt T. Lowe

Biofilm Basics

Montana State University – Centre for Biofilm Engineering

Oxidation-Reduction Potential (ORP) for Water Disinfection Monitoring, Control, and Documentation

TREVOR V. SUSLOW, Extension Research Specialist, Department of Vegetable Crops, University of California, Davis