WHY CHLORINE DIOXIDE IS IDEAL FOR COOLING TOWERS
Unlike traditional chemicals, chlorine dioxide (ClO₂) is highly effective across varying conditions:
- Works efficiently even in high pH environments
- Does not react with ammoniacal compounds
- Stable performance even in the presence of organic contaminants
- Consistent dosage requirements for reliable microbial control
This makes CDD 5000 one of the most dependable solutions for industrial cooling tower water treatment.
HOW CDD 5000 WORKS
CDD 5000 comes as a two-component powder system (A & B):
- Fill the container with clean tap water (1L, 5L, 10L, 50L – as per label).
- Add component A, followed by component B.
- Gently swirl and close the container securely.
- Allow 4 hours for activation.
- Once ready, you have a 0.5% chlorine dioxide solution prepared for use.
COOLING TOWER WATER TREATMENT METHODS
Chlorine dioxide should be applied directly to the recirculating pump suction or beneath the sump near the pump intake. Two treatment strategies are commonly used:
- Intermittent Treatment (for less critical systems)
- Applied 3 times daily (dawn, dusk, midnight)
- Achieves 0.5 – 1.0 ppm residual
- Duration: 30 minutes or 4 system turnovers (whichever is greater)
- Continuous Treatment (for critical systems)
- Continuous dosing throughout operation
- Maintains 0.1 – 0.2 ppm residual
- Higher cost but ensures uninterrupted protection
MEASURING EFFECTIVENESS
Two methods are widely used for monitoring chlorine dioxide levels:
DPD Method
- Produces a red solution proportional to concentration.
- Requires adjustment (multiply by 1.9) for chlorine dioxide.
CPR Method
- More precise, specific to chlorine dioxide.
- Measures how much red CPR dye is bleached.
KEY BENEFITS OF CDD 5000 IN COOLING TOWER TREATMENT
- Consistent microbial control
- Effective even in high pH or contaminated water
- Reduces scale, fouling, and corrosion
- Improves cooling efficiency & energy savings
- Extends system lifespan
CDD 5000 TREATMENT EXAMPLE: INDUSTRIAL COOLING TOWER APPLICATION
The water of an industrial cooling tower with a total system volume of 40 m3.The following table and calculation give the estimated daily CDD 5000 requirement.
| SR. No. | DAILY WATER CAPACITY(LIT) |
REQUIRED DOSE OF CDD 5000 PER CYCLE(LIT) |
CDD 5000 REQUIRED(LIT PER CYCLE) |
|---|---|---|---|
| 1 | 40000 | 0.3 | 2.4 |
| 2 | 40000 | 0.4 | 3.2 |
| 3 | 40000 | 0.5 | 4 |
FORMULA FOR CALCULATING CDD 5000 DOSE:
CDD 5000 required = Required dose rate (PPM) /5000 x Quantity of Water (Lit)
SVS AQUA’S COOLING WATER TREATMENT SERVICES
We provide complete cooling tower water treatment solutions, including:
- Water demand analysis for accurate dosing
- System design & customized treatment strategies
- Ongoing monitoring & optimization
- Expert support for compliance & safety
Partnering with SVS Aqua helps industries achieve maximum efficiency and long-term reliability.
FAQs ABOUT CHLORINE DIOXIDE FOR COOLING TOWERS
It prevents microbial growth, controls biofilm, and reduces scaling without being harsh on equipment. SVS Aqua has industrial-grade tablets for this.
In many cases, yes. It can replace multiple chemicals and simplify your treatment routine.
Depends on water load and system type. SVS Aqua can help with a dosing schedule tailored to your setup.
Yes. It’s one of the most effective solutions for Legionella control in recirculating water systems.
Yes, chlorine dioxide works well alongside most anti-scalants and corrosion inhibitors.