How does High Efficiency Air Flotation Equipment affect the air flotation separation effect

HEAF Separation Efficiency Factors

Equipment Design Factors

• Flotation tank geometry (depth and surface area) affects settling time and separation space
• Shallow and wide tanks enhance upward movement of bubbles and particles
Dissolved air system produces optimal microbubbles of 10–30 μm diameter for maximum particle attachment
• Smaller, uniformly sized bubbles provide larger surface area for improved separation

Operational Parameters

• Dissolved air tank pressure affects air solubility and energy consumption
• Optimal pressure range: 0.3–0.5 MPa balances bubble generation and energy use
Recycle ratio of dissolved air water typically 10–30% of influent flow for efficiency
• Incorrect settings can cause either insufficient flotation or energy waste

Component Performance

• Malfunctioning release nozzles may produce large, ineffective bubbles
• Worn-out scrapers reduce sludge removal efficiency
• Chemical additives (flocculants) must be compatible with mixing/aeration systems
Regular maintenance and calibration are essential for consistent performance

HEAF separation efficiency is determined by an interplay of design, operational parameters, and component performance, requiring holistic optimization for maximum effectiveness.