Within the food and beverage markets there are many applications in which Gee & Co are involved.
The applications range from Disinfection of process water and bottle washing, boiler and cooling tower water treatment including the prevention of Legionnaires disease. CIP applications. Vegetable washing and root care using disinfection such as chlorine dioxide.
Chlorine dioxide is gaining popularity as a useful process as food processors look for more efficacious products to help them win the sanitation battle. Approved by various organisations , it is as powerful oxidant, making it an excellent choice for food processing plants. It has been shown to destroy and prevent biofilms, one of the biggest challenges to food processors in destroying harmful bacteria.
It is a versatile chemical that can be used in a number of applications applications, including pasteurization equipment, heat exchangers, cooling towers, hard surface disinfecting, potable water treatment and deodorizing stacks in rendering plants. It is increasingly being used as a tool to control microbiological growth in the dairy industry, the beverage industry, the fruit and vegetable processing industries, canning plants, and in poultry and beef facilities.
Chlorine dioxide is 2.6 times more powerful than chlorine of waterborne chlorine, making it a suitable disinfectant in many applications, studies have shown that it produces as high as a 6-log reduction.
Also chlorine dioxide has a much wider pH spectrum than chlorine. The lack of any significant reaction of chlorine dioxide with water is partly responsible for its ability to retain its biocidal effectiveness over a wide pH range. It also has limited reactions with organics, indicating that much more of the chlorine dioxide added to a system is available as a biocidal agent, and is not consumed to the degree that chlorine would be under the same circumstances. In addition, chlorine will react with, and be consumed by ammonia or any amine, while chlorine dioxide reacts very slowly with secondary amines, and sparingly with primary amines or ammonia.
i) Soft Drinks & Fruit juice
Chlorine dioxide is often used in the pre-treatment of process water. In the case of fruit juices bacteria can make the juices cloudy leading to a poor product and lower production output.
ii) Vegetable washing
It is also used in in vegable washing where fresh fruits and vegetables can carry surface microorganisms consisting of harmless soil organisms, fungal spores, and yeasts, as well as potential pathogens. Washing with chlorine dioxide is commonly used to remove these contaminants. Processed fruits and vegetables can be transported via flumes through processing plants. With numerous exposures to water, the potential for microbial cross-contamination is high.
Salads in particular are not enticing to eat if they become effected by bacteria, spores or mould. This can be prevented by keeping the vegetables’ cool and washing with chlorine dioxide. Typically lettuce is washed using chlorine dioxide at a temperature around 10-15oC then subject to rinsing until the concentration falls to 0.2 ppm.
Bio slimes can also form in rinse and flume systems. Chlorine dioxide can be used to provide effective treatment. Its aggressive attack on bioslimes ensures less fouling of piping and is efficient at eliminating bacterial “seeding” within the process water. Chlorine dioxide does not produce halogenated organic byproducts, which can be associated with chlorine and bromine compounds. Typically doses of 5 ppm available chlorine dioxide is added to the rinse water. The end result is an extended shelf life.
CIP is in important part of the process to ensuring high quality and a long shelf life of the products. Chlorine Dioxide can be an important part of this process.
|Application||Chemicals Used||Gee’s Solution|
|Boiler water feed||Speciality chemicals for pH correction, oxygen scavenging scale/corrosion inhibition||Packaged Plant ,Dosing Skids, Dosing Pumps and bunded chemical storage tanks|
|Cooling towers||Speciality chemicals for the control of Legionella and the prevention of scale and corrosion||Packaged Plant ,Dosing Skids, Dosing Pumps ,bunded chemical storage tanks and chlorine dioxide|
|Effluent treatment||Primary coagulants based on iron or aluminium saltsPolyelectrolytes/flotation aidAnti-foams||Packaged Plant ,Dosing Skids, Dosing Pumps and bunded chemical storage tanks|
|CIP||Acids, alkalis and surfactants||Packaged Plant ,Dosing Skids, Dosing Pumps ,bunded chemical storage tanks and chlorine dioxide|
|Sanitising||Speciality Products||Bunded chemical tanks ,dosing skids and|