When operating Pressurised Dissolved Air Flotation (DAF) systems, several safety precautions are essential to prevent accidents, protect personnel, and ensure equipment integrity:

• Personal Protective Equipment (PPE)

  Operators must always wear appropriate PPE, including:

  Safety goggles to shield eyes from splashes of chemicals used in the flotation process

  Gloves to protect hands from corrosive substances

  In high-noise areas around the equipment, hearing protection should also be worn.

• Pressure System Safety

  Since DAF involves pressurized water, regularly inspect:

  - Pressure vessels, pipes, and valves for signs of wear, corrosion, or leakage

  - Ensure pressure gauges are functional and calibrated accurately

  Never exceed the maximum rated pressure of the equipment. Before maintenance, release all pressure in the system safely to avoid sudden bursts.

• Chemical Handling

  DAF often uses chemicals like coagulants and flocculants. Store these chemicals:

  In designated areas, away from incompatible substances

  Follow strict procedures when handling to prevent spills and inhalation

  Have proper neutralization agents and spill kits readily available and follow emergency response protocols.

• Electrical and Mechanical Hazards

  Keep electrical panels and wiring dry to prevent short-circuits and electrical shocks.

  Regularly check:

  Motors and pumps for proper lubrication and alignment

  Install guards around rotating components

  Lockout-tagout procedures should be followed during maintenance to isolate equipment from energy sources.

• Emergency Preparedness

  Have clear emergency exit routes and ensure they are unobstructed.

  Install fire extinguishers suitable for potential hazards near the DAF system.

  Train all operators in:

  Emergency shutdown procedures

  First-aid treatment for chemical exposure or injuries

  Evacuation protocols