Water Temperature Control in Dissolved Air Flotation
1. Optimal Temperature Range
Integrated High Speed Dissolved Air Flotation has its optimal operating water temperature range where:
- Water density and viscosity are moderate
- Microbubble stability is excellent
- Pollutant adsorption efficiency is high
- Air flotation separation remains stable
Recommended range: 15-30°C (59-86°F)
2. Low Temperature Effects & Responses
When water temperature is too low:
- Water viscosity increases significantly
- Microbubble rising speed slows down
- Separation time becomes prolonged
System response:
- Built-in heating activates to raise temperature
- Dissolved gas pressure increases
- Microbubble density increases for compensation
Low temperature threshold: <10°C (50°F)
3. High Temperature Influence & Control
When water temperature is too high:
- Air solubility in water decreases
- Dissolved gas water concentration drops
- Microbubbles merge and rupture easily
System response:
- Dissolved gas tank pressure reduces
- Residence time shortens
- Cooling water jacket activates
High temperature threshold: >35°C (95°F)
4. Extreme Temperature Protection
When temperature reaches extreme levels:
- Protection mechanism triggers automatically
- Water intake suspends
- Alarm system activates
PLC system response:
- Real-time temperature monitoring
- Operating parameters adjust automatically
- Prevents scum loosening and turbidity
Maintaining proper water temperature is essential for optimal DAF performance. The system's automated controls and protection mechanisms ensure stable operation across varying temperature conditions while maintaining treatment efficiency.