Effective and durable protection for water systems
Secondary disinfection provides enhanced, long-lasting protection for water systems by significantly inhibiting the growth of microorganisms that cause harm to human health.
Supporting primary disinfection, secondary disinfection is designed to provide ongoing mitigation against the risks associated with legionella and other waterborne pathogens.
Safety and compliance
The role of secondary disinfection is to maintain optimum water quality and protect building occupants, employees and visitors, while minimising the risk of the degradation of high value assets.
A robust programme of water disinfection methods enables facilities managers, site operators and other responsible parties to:
- Adhere to the UK, Northern Ireland and Scotland Drinking Water Regulations
- Comply with ACoP L8
- Meet WHO Guidelines for Drinking Water Quality
Guardian Secondary Disinfection services
Secondary disinfection is often delivered using powerful anti-microbial chemicals including chlorines, chlorine dioxides and monochloramines that are risky to store and handle and cause harm to the environment.
At Guardian Water Treatment, we take an alternative approach with a range of highly effective Hypochlorous Acid based secondary disinfection options that provide a safe working environment for engineers and protect animal species from harm.
“Hypochlorous acid (HOCl) [is] the form of chlorine that is most effective as a biocide.”
HSG274 – HSE’s technical guidance on Legionnaires’ disease, Part 1: The control of legionella bacteria in evaporative cooling systems
Hypochlorous acid (HOCl) benefits
HOCl is a particularly fast-acting biocide that can be used for flushing, shock-dosing, mobile and emergency disinfection and continuous disinfection in acute applications.
- Safe for humans
- Chemical-free, non-toxic and naturally occurring
- Improved safety, storage and handling
- No need for PPE
- Long-shelf life, less wastage
- Lower CO2 emissions
- Breaks down biofilms
- Quickly eradicates legionella
- Widely used across NHS sites
Secondary Disinfection Sectors
- Food & Beverage – dairies, fruit, vegetable, seafood, fish and poultry processing
- Industry – cooling water treatment, legionella control, process water, slime control
- Water companies – Disinfection of potable water and wastewater
- Healthcare facilities – Hospitals, care homes etc
- Hospitality and leisure settings – hotels, sports centres, swimming pools, spa facilities
