Disinfection of well water is essential to ensure its microbiological safety and make it drinkable or suitable for domestic use. Various systems exist, each with specific advantages depending on the type of contamination and the user’s needs.
A proportional chlorine dosing system is an automated water disinfection solution that adjusts the amount of chlorine based on the flow rate of the treated water. This ensures precise dosing, preventing waste and overdosing.
Main System Components
1. Flow Meter
Measures the amount of water flowing through the system in real time.
2. Proportional Dosing Pump
• Regulates the amount of chlorine injected based on the detected volume of water.
• Can be peristaltic, electromagnetic, or piston.
3. Chlorine Tank
Contains the sodium hypochlorite solution or other disinfectant.
4. Mixing System
Ensures that the chlorine is evenly distributed throughout the water.
5. Contact Tank
Allows the necessary time for the chemical reaction (minimum 30 minutes).
6. Residual Chlorine Sensor (Optional)
Verifies that the free chlorine concentration is within the desired limits (e.g., 0.2–0.5 mg/L).
Operation
- When water passes through the volumetric meter, it sends a pulse to the dosing pump.
- The pump injects a quantity of chlorine proportional to the volume of water detected.
- For example: 1 pulse every 10 liters → 1 ml of chlorine for each pulse.
- The system can be calibrated for different concentrations based on water quality.
Advantages
- Precision: Dosage is always proportional to the flow.
- Efficiency: avoids chemical waste.
- Safety: reduces the risk of overdose.
- Automation: can be integrated with remote monitoring systems.
Considerations
- It is important to calibrate the system based on chlorine concentration and water flow rate.
- Chlorine must be stored properly to avoid degradation.
- The system must be checked periodically to ensure proper operation.
Contact Dosita Srl to evaluate and recommend the system best suited to your needs.
