Efficient Methods for Drinking Water Disinfection
Keeping Water Healthy: Drinking Water Disinfection and Animal Health
Drinking water disinfection protects against germs. It ensures that our water remains free of pathogens and protects against viruses, bacteria, and parasites. Clean water is especially crucial in agriculture and in pigeon breeding.
What is drinking water disinfection?
Drinking water disinfection ensures that our water is safe. It is a key component of public health. The World Health Organization (WHO) recommends the multi-barrier approach: clean raw water, filtration, disinfection, and continuous monitoring.
Why is drinking water disinfection important?
- Prevents the transmission of waterborne diseases
- Protects people and animals from infections
- Improves drinking water quality and well-being
- Essential in agriculture and pigeon breeding
Methods of drinking water disinfection
Chemical methods
- Chlorine (hypochlorite): Effective against bacteria and viruses, provides residual disinfection in the distribution network.
- Chloramines: Long-lasting and stable, fewer by-products, but a risk of nitrification.
- Chlorine dioxide (ClO₂): Effective against biofilms, reduces microbial growth.
- Ozone: Very strong against germs, no residual protection, bromate must be monitored.
Physical methods
- UV light: Damages the DNA of microorganisms, highly effective against protozoa. Combination with chlorine or chloramine is recommended.
- Filtration and membrane processes (UF/NF/RO): Removes protozoa, bacteria, and dissolved substances. Activated carbon improves odor and taste.
- Other options: Distillation, heat treatment, reverse osmosis – useful in special cases.
Resistance-free alternatives
Phage therapy, plant extracts, or microbial competition – currently not approved as disinfection methods in the EU and Germany (§ 20 list of the UBA).
Practice: drinking water hygiene in agriculture and breeding
Clean water is crucial for animal health and performance. Biofilms form quickly, especially in drinking systems, releasing germs and toxins.
Recommended measures:
- Regular cleaning and disinfection of drinkers and pipes
- Biofilm prevention through flow and hygiene management
- Quality checks for private wells
These measures reduce the risk of disease, strengthen animal welfare, and lower medication use. Suitable products can be found under Drinking water hygiene, and the drinkers themselves under Drinkers & troughs.
Drinking water hygiene in the home and in emergencies
- Boiling: 1 minute at a rolling boil (above 2000 m: 3 minutes)
- Chlorine bleach (5–9 %): 2 drops per liter, leave to act for 30 minutes
- Filters and UV devices: Use only certified products
Challenges and tips for water quality
- Compliance with limit values (TTHM, HAA, bromate, chlorite/chlorate)
- Installation of modern systems, for example according to the multi-barrier principle
- Regular inspection and monitoring
- Education on water hygiene in households and businesses
Frequently asked questions about drinking water disinfection
Is UV alone sufficient?
Against germs, yes – but without residual protection in the network. Therefore, it is usually combined with chlorine or chloramine.
Chlorine or chloramine – which is better?
Chlorine works faster, chloramine lasts longer. The choice depends on the distribution network.
What can be done about bromate during ozonation?
Know the bromide content, optimize pH value and dosage, use activated carbon.
Conclusion: clean drinking water for people and animals
Sustainable safety does not come from a single process, but from combining methods. Those who combine UV with chlorine or chloramine, use ozone in a controlled way, and monitor by-products achieve healthy water quality in the long term – in the home, in agriculture, and in the network.