A stabilized ozone fog to efficiently sanitize greenhouses and other difficult to clean structures, using micro / nano bubble stabilization and vaporisation control - Greenhouse Sanitisation

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The UK produces nearly 2000 Ha of high value greenhouse-protected crops, with a sales valueapproaching £1 billion. These intensive crops experience bacterial and fungal infectivediseases, causing losses of up to £150 million. Resistance to treatments is increasing andchemical use is becoming increasingly restricted and also require long airing times to allowtoxic residues to dissipate, meaning that a more effective form of greenhouse disinfection isneeded. The use of ozone as a sanitizer is one possibility, since it is highly effective andbreaks down to oxygen. However its high reactivity causes unacceptable variability in itsefficacy.We have identified a method to create a novel stabilized ozone ‘fog’ that resistsdecomposition during distribution and reaches the target surface with consistently high levelsof potency, with minimal wetting of surfaces by condensation. We believe we can develop asanitization unit that can reliably disinfect complex greenhouse structures and can possiblyalso be used in the presence of growing plants. Our project is to prove the feasibility of thisconcept and to understand the dosage and aerosol characteristics that would be required. Thefuture developed technology is envisaged to be usable to treat an entire greenhouse and alsohave the embodiment of a hand- held unit to treat individual areas when required; ultimately itmay also be applicable to use in healthcare and food warehousing.