Cleaning Method for Mobile Toilets

The following standardized procedures should be followed when cleaning mobile toilets to ensure hygiene, safety, and long-term equipment operation:

1. Pre-operation Preparation
Operators must wear full protective gear, including waterproof aprons, non-slip rubber boots, nitrile gloves, and goggles, and set up mobile warning signs to isolate the work area. Key tools include high-power vacuum sewage trucks (equipped with corrosion-resistant hoses and quick connectors), high-pressure washers (pressure 120-180 bar), long-handled hard brushes, non-ionic surfactant cleaners, chlorine-based or hydrogen peroxide-based specialized disinfectants (effective chlorine concentration 500-1000 mg/L), and independently sealed waste collection bags.

2. Pre-treatment Inspection
Before operation, check the toilet's liquid level indicator, sewage valve connection status, and ground leakage to prevent secondary pollution during the operation. If a loose sewage valve or residual waste on the ground is found, prioritize handling before starting the cleaning process.

3. Sewage Evacuation
Tightly connect the suction hose to the sewage outlet, start the vacuum pump, and slowly extract liquid and solid residues from the storage tank, controlling the negative pressure humidity to avoid pipe blockage or splashing. After suction, inject a small amount of water for secondary suction to flush residual matter from the tank walls, ensuring thorough removal of waste.

4. Rinsing
Use a high-pressure washer to spray the toilet walls, fixtures, floors, and corners with a fan-shaped water jet, focusing on removing feces, tissue residue, and calcified dirt. Stubborn stains require repeated brushing with a long-handled brush dipped in cleaner until all visible surfaces are free of organic residue.

5. Deep Disinfection
After physical cleaning, apply disinfectant by spraying or wiping all contact surfaces, including door handles, locks, and flush buttons, maintaining contact for 10-15 minutes to kill germs. Then rinse surfaces with clean water to avoid skin irritation from chemical residues. Suction hoses, connectors, and tools must also be disinfected with the same intensity to prevent cross-contamination.

6. Air Treatment
Use atomized deodorizers to neutralize odors such as ammonia and hydrogen sulfide, rather than masking them with fragrances, ensuring the air is free of irritating odors after operation.

7. Equipment Maintenance and Waste Disposal
Inspect components such as toilet seals, exhaust fans, door hinge locks, and solar power systems, record any damage, and report it. After cleaning, leave a small amount of water in the storage tank and add biodegradable agents to suppress odors. Waste and wastewater must be transported to designated sewage treatment facilities or septic tanks and must not be dumped into storm drains or non-designed pipe networks.

8. Operation Records
Fill in records of cleaning time, disinfectant usage, equipment status, and wastewater flow to establish traceable operation archives.