Mobile Toilet Disinfection Process

The disinfection process for mobile toilets includes pre-operation preparation, solid waste and dirt removal, rinsing, comprehensive disinfection, rinsing again, tool disinfection, air treatment, ventilation, equipment maintenance, waste disposal, and record-keeping, as detailed below:

Pre-operation preparation: Operators must wear protective gear such as waterproof aprons, non-slip rubber boots, nitrile gloves, goggles, protective suits, and masks to avoid direct contact with contaminants. Prepare tools including high-power vacuum sewage trucks, high-pressure cleaning machines, long-handled hard brushes, non-ionic surfactant cleaners, specialized disinfectants (chlorine-based or hydrogen peroxide-based, with a concentration of 500-1000mg/L), and waste collection bags. Check the toilet's liquid level indicator, sewage valve connection status, and ground leakage, and set up warning signs to isolate the work area.

Solid waste and dirt removal: Use a vacuum sewage truck to empty the liquid and solid residues from the storage tank, then inject clean water to rinse the tank walls a second time to ensure no residue remains.

Rinsing: Use a high-pressure cleaning machine to spray the toilet walls, fixtures, floor, and dead corners with a fan-shaped water jet, in combination with a long-handled brush and cleaner to remove stubborn stains, ensuring no organic residue remains on the surfaces.

Comprehensive disinfection:

• Physical disinfection: Spray high-temperature steam onto surfaces such as toilets and sinks for several minutes; or install ultraviolet lights and turn them on for more than 30 minutes during unoccupied periods.
• Chemical disinfection: Dilute chlorine-based disinfectants (such as 84 disinfectant) and spray them, allowing them to act for 30 minutes to 1 hour; spray peracetic acid (0.5%-1%) and then rinse with clean water; spray chlorine dioxide at a rate of 5-10mg per cubic meter for 30 minutes; wipe high-frequency contact areas such as door handles with 75% alcohol, keeping away from fire sources. Disinfectants must cover all contact surfaces and maintain contact for 10-15 minutes.

Rinsing again: Thoroughly rinse all surfaces with clean water to avoid skin irritation from chemical residues.

Tool disinfection: Clean and disinfect suction hoses, connectors, and tools with the same intensity to prevent cross-contamination.

Air treatment: Use atomized deodorizers to neutralize odors such as ammonia and hydrogen sulfide.

Ventilation: After disinfection, open doors and windows or activate ventilation equipment to maintain environmental ventilation for more than 30 minutes, reducing the concentration of disinfectant residues.

Equipment maintenance and waste disposal: Inspect components such as toilet seals and exhaust fans, and record any damage; leave clean water in the storage tank and add biodegradable agents; transport waste and wastewater uniformly to designated treatment facilities, prohibiting indiscriminate dumping.

Record-keeping: Fill out record sheets including cleaning time, disinfectant usage, equipment status, and wastewater flow direction.