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Chlorination Systems

Chlorination Systems – Secure Water Disinfection

 

What is a chlorination system?

Chlorination systems are used to disinfect water by automatically injecting a chlorine-based solution (such as sodium hypochlorite) into potable water networks, wastewater, or industrial water.

They ensure continuous and effective disinfection against:

  • Bacteria (e.g. E. coli)
  • Viruses
  • Pathogens

These systems are essential in:

  • Municipal and industrial wastewater treatment plants
  • Potable water distribution networks
  • Storage tanks and reservoirs
  • Food and beverage industry
  • Any process requiring bacteriological control

How a Chlorination System Works

A complete chlorination system includes:

  • A chlorine solution storage tank (e.g. sodium hypochlorite or equivalent)
  • One or more dosing pumps
  • Sensors for free chlorine or redox (ORP) monitoring
  • An automated control panel that adjusts dosing according to target values

The dosing rate is automatically regulated based on:

  • Real-time flow rate
  • Desired chlorine concentration (mg/L or ppm)
  • Feedback from an analyzer or sensor

 

Benefits of Waste & Water Chlorination Systems

  • Accurate and reliable disinfection
  • Fully automatic control via PLC or dedicated regulator
  • Compatible with sodium hypochlorite, chlorine dioxide, or gaseous chlorine
  • Open- or closed-loop operation (with sensors)
  • Anti-corrosion structure, suitable for oxidizing agents
  • Enhanced safety: non-return valves, retention tanks, leak detectors
  • Compact, pre-wired, plug-and-play designs

  

Standard & Custom Models

 

Model

Injection Flow (L/h)

Product Used

Dosing Pump

Tank Capacity (L)

Control Unit

WW-CHL/05/IS

0.5–5

Sodium hypochlorite (12–15%)

Stainless diaphragm

100

Manual regulator

WW-CHL/10/IS

1–10

Hypochlorite, Chlorine Dioxide

Peristaltic

200

PLC + Redox

WW-CHL/20/IS

5–20

Hypochlorite, Gaseous Chlorine

Dual-head

300

PLC with free chlorine analyzer

 

Available Options:

  • Leak alarms
  • Neutralization system
  • Continuous chlorine analysis
  • SCADA connectivity

Applications

 

  • Disinfection of potable water at plant outlet
  • Rechlorination at pumping stations or water towers
  • Tertiary treatment in wastewater plants
  • Industrial cooling water systems
  • Retention basins (stormwater or industrial water)

  

Integration & Support

Our systems are delivered:

  • Ready-to-use, mounted on stainless steel panels or skids
  • With user manuals and wiring/hydraulic diagrams
  • With on-site installation and commissioning options

We also provide:

  • Annual maintenance contracts
  • On-site chlorine testing
  • Responsive technical support in France and internationally

  

FAQ – Chlorination Systems

 

💬 What types of chlorine can be injected?

Our systems are compatible with:

  • Sodium hypochlorite (most common)
  • Chlorine dioxide
  • Gaseous chlorine (upon request with enhanced safety measures)

💬 Can the chlorine level be adjusted automatically?

Yes. Using our automatic regulators or PLCs, the dosing pump adjusts injection based on:

  • Flow rate (via 4–20 mA signal)
  • Sensor readings (free chlorine or redox)

  

💬 Does chlorination affect water taste or odor?

At the right concentration (0.2–0.5 mg/L), residual free chlorine ensures safe disinfection without affecting taste or odor.

  

💬 Can the system operate 24/7?

 Absolutely. All models are designed for continuous operation, with alarms for failure, interruption, or overdosing.

 

💬 Do you also supply the chemical reagents?

 Yes, we can also provide:

  • Stabilized hypochlorite
  • Neutralizing agents (e.g. sodium thiosulfate)
  • Associated safety equipment (retention tanks, leak detection systems)