Skytech Water is the group’s water disinfection division. It lets a facility generate its disinfectant on site at the moment of use, rather than transporting and storing it.
Skytech Water designs, installs, commissions and services E.C.A (electrochemical activation) systems that generate hypochlorous acid on site. Its diaphragm electrolysis cell produces hypochlorous acid (HOCl) for disinfection at the anode and sodium hydroxide (caustic) at the cathode, which can be used on site for alkaline cleaning and pH correction. The only inputs are salt, water and electricity; no hazardous chemicals are transported or stored.
An electrochemical activation cell
How the work is done
Salt, water and electricity. That is the whole input list
Skytech Water designs, installs, commissions and services E.C.A (electrochemical activation) systems that generate hypochlorous acid on site. The only inputs are salt, water and electricity; no hazardous chemicals are transported or stored.
At its centre is a diaphragm electrolysis cell. It produces hypochlorous acid (HOCl) for disinfection at the anode and sodium hydroxide (caustic) at the cathode, which can be used on site for alkaline cleaning and pH correction.
Hypochlorous acid is the same oxidant that the white blood cells of the immune system produce against microbes. Once it has reacted, it is largely reduced to chloride ions and water.
What the cell produces
The diaphragm electrolysis cell yields two separate products.
Anode (+): main product
An oxidant solution consisting mainly of hypochlorous acid (HOCl) (anolyte). For disinfection. 2Cl⁻ → Cl₂ + 2e⁻ · Cl₂ + H₂O → HOCl + HCl
Cathode (−): second product
Sodium hydroxide (NaOH, caustic) (catholyte). Can be used on site for alkaline cleaning (CIP) and, where the process allows, pH correction. 2H₂O + 2e⁻ → H₂↑ + 2OH⁻ · Na⁺ + OH⁻ → NaOH
Diaphragm
Separates the anode and cathode chambers. It lets Na⁺ ions through and keeps HOCl and NaOH from mixing.
Hydrogen (H₂)
The hydrogen formed at the cathode is separated and vented in a controlled way.
Inputs
Salt · water · electricity
How the system runs
Water is drawn from the main line and prepared; the solutions made in the electrolysis unit are collected in separate tanks and dosed against measurement.
01
Feed and pre-treatment
The main line (mains, storage tank or process line) feeds the system through a valve and pressure regulator. The water passes a mechanical filter and a water softener, and a brine (NaCl) tank is kept ready for electrolysis.
02
E.C.A electrolysis unit
In the diaphragm cell, HOCl forms at the anode and NaOH at the cathode. Hydrogen is separated and vented in a controlled way.
03
On-demand production
HOCl is collected in a tank with a level sensor, NaOH in a separate tank. When the HOCl level drops, production starts; when the tank is full, it stops.
04
Automatic dosing and remote monitoring
A dosing pump runs against a flow meter and residual-chlorine / ORP measurement. The system is monitored remotely through its control panel.
Applications
Drinking water
Disinfection of network and reservoir water.
Swimming pools
Disinfection of pool water.
Healthcare facilities
Water lines and surface hygiene.
Food processing
Food-contact surfaces and CIP lines.
Agriculture and greenhouses
Irrigation water and greenhouse hygiene.
Livestock
Drinking lines and housing hygiene.
Industrial plants
Cooling towers, process lines and CIP.
Space disinfection
Disinfection of enclosed spaces and surfaces.
The Balıkesir Avlu canal after treatment
Reference: the Balıkesir Avlu canal, ready for the swim leg in 5 days
In August 2024, ahead of the Balıkesir Avlu triathlon, the canal water was cleaned and disinfected. The canal is 900 m long, 30 m wide and 2.0–3.5 m deep (2.5 m on average) — about 65,000 m³ of water.
Mobile E.C.A units running on salt, water and electricity were set up right on the canal bank, and HOCl was generated on site. A shock dose was applied at set points along the canal, followed by continuous feed. The first dose settled the organic load and algae, the water cleared quickly, and the official samples were taken once it was fully clear. The whole job took 5 days.
No hazardous chemicals were transported or stored. Sources: the BASKİ 2024 Annual Report, p. 127, and the Balıkesir Sprint Triathlon race regulations. Project details
Avlu canal: before and after
Laboratory analysis. Figures in brackets are the bathing-water reference.
Buying a ready-made chemical brings hazardous material into the facility: it is hauled, stored and handled. Every one of those steps carries an occupational risk and a regulatory obligation.
On-site generation removes that chain. Salt is what is kept as input, and because the solution is made on demand, dosing follows the facility’s live need.
Sizing
Capacity is sized to each facility; contact us for technical values.
Skytech Water sizes the system to the facility, installs it, commissions it and services it.
Capabilities
What this division does
The services and engineering scope we deliver.
On-site HOCl generation
Hypochlorous acid (HOCl) for disinfection, made at the anode of a diaphragm electrolysis cell.
Second product: sodium hydroxide
Caustic (NaOH) formed at the cathode, for alkaline cleaning (CIP) and, where suitable, pH correction on site.
On-demand production
Production starts when the HOCl tank level drops and stops when it is full.
Automatic dosing
Dosing against flow and residual-chlorine / ORP measurement.
Control and remote monitoring
The system is monitored remotely through its control panel.
Installation, commissioning and service
Each system is sized to the facility, installed, commissioned and serviced.
Platform
Product
HOClE.C.A systemsElectrochemical activation systems that make hypochlorous acid (HOCl) on site from salt, water and electricity
Sectors
Where we work
Drinking water
Swimming pools
Healthcare facilities
Food processing
Agriculture and greenhouses
Livestock
Industrial plants
Space disinfection
From the field
Operating basis
How we operate
Capacity is sized to each facility; contact us for technical values.
The only inputs are salt, water and electricity; no hazardous chemicals are transported or stored.
An E.C.A system makes hypochlorous acid (HOCl) on site from salt, water and electricity through electrochemical activation. At its centre is a diaphragm electrolysis cell: HOCl for disinfection forms at the anode and sodium hydroxide (caustic) at the cathode. Skytech Water designs, installs, commissions and services the system.
What is hypochlorous acid (HOCl)?
Hypochlorous acid is the same oxidant that the white blood cells of the immune system produce against microbes. In E.C.A systems it forms at the anode of the diaphragm electrolysis cell and is used for disinfection. Once it has reacted, it is largely reduced to chloride ions and water.
What is the sodium hydroxide from the cathode used for?
The sodium hydroxide (NaOH, caustic) formed at the cathode is the system’s second product. It can be used on site for alkaline cleaning (CIP) and, where the process allows, pH correction.
Why is generating disinfectant on site safer?
Because the only inputs are salt, water and electricity, no hazardous chemicals are transported or stored. Production follows demand: it starts when the HOCl tank level drops and stops when the tank is full.
How is a system sized?
Capacity is sized to each facility; contact us for technical values. Skytech Water sizes the system to the facility, installs it, commissions it and services it.
Have an enquiry for this division?
Reach our technical team and we will size the solution and prepare a quote.
