ECA technology — European-standard HOCl
How it works, how it compares with other disinfection methods, and how to use it safely.
From brine to a natural antimicrobial agent
At near-neutral pH the HOCl molecule carries no charge, so it passes through the (negatively charged) microbial cell membrane more readily than the hypochlorite ion (OCl⁻) found in traditional bleach.
Dilute brine electrolysis
Current passes through a saline solution in a dedicated electrolysis cell, with tight pH and concentration control.
HOCl is formed
Stable hypochlorous acid at pH 5.0–6.5, at 400 ppm (ready to use) or 2000 ppm (concentrate).
Membrane penetration
Being charge-neutral, HOCl enters the cell and disrupts bacterial and viral DNA/RNA.
Biofilm handling
Penetrates and breaks down biofilm in pipework — something conventional chlorine struggles with.
Degrades after use
Reverts to water and a trace of salt, leaving no synthetic chemical residue.
Batch-level control
Every production batch is checked for active-ingredient concentration and pH before filling.
HOCl versus traditional chlorine (bleach)
| Criterion | Traditional chlorine (bleach) | HOCl (Bio ActiW) |
|---|---|---|
| Active species | Hypochlorite ion (OCl⁻) | Hypochlorous acid (HOCl), charge-neutral |
| Cell membrane penetration | Repelled by the negatively charged membrane | Charge-neutral, penetrates readily |
| Optimal pH | Efficacy falls above pH 7.5 | Stable at pH 5.0 – 6.5 |
| Biofilm removal | Poor against thick films | Penetrates and handles biofilm better |
| Corrosion & scaling | Higher; prone to lime scaling | Lower at near-neutral pH |
| Odour & residue | Pungent; may form by-products (DBPs) | Mild odour; degrades to water & salt |
This table reflects widely published science on HOCl/OCl⁻ chemistry and is not the result of Bio ActiW's own testing.
Do & Don't
✓ Do
- Use the concentration recommended for each line (400 ppm ready to use / 2000 ppm requires dilution)
- Dilute concentrate lines with clean water (mains or filtered)
- Store in a cool, dry place away from direct sunlight; close the cap after use
- Wait until surfaces are dry (15–30 minutes) before returning animals to a treated area
✕ Don't
- Use it to wash away gross soiling (manure, mud) — clean with water first
- Mix with alcohol, ammonia, other acids, or soap and detergents
- Over-concentrate the dilution "to be on the safe side"
- Dilute using iron-rich borehole water or turbid water
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