Mobile Toilet Basics

Mobile toilet basics cover multiple aspects including definitions, components, structural forms, mobility methods, sewage treatment methods, design principles, and requirements for foundation installation.

Definitions and Components: A mobile toilet is a facility that can be moved as a whole to provide toilet services to the public. It generally consists of a fecal sewage storage tank (or disposal device), floor slab, sanitary ware, walls, washing equipment, water tank, roof, and mobility device.

Structural Forms: Mobile toilets are divided into single-structure and composite-structure types. Single-structure toilets are relatively independent and simple, while composite-structure toilets may be composed of multiple parts and have more complex and diverse functions.

Mobility Methods: There are lifting and handling types, which rely on cranes and other equipment for overall lifting and handling; and powered and towed types, which can be moved using their own power or be towed by other vehicles.

Sewage Treatment Methods: Water-flushing and non-water-flushing suction types. The former uses water for flushing, while the latter treats fecal sewage through suction. There are also circulating water-flushing types that recycle flushing water, and dry-packing types that pack feces for treatment without using water.

Design Principles: Adhere to the principles of mobility convenience, economic durability, using lightweight and durable materials, and having a sturdy structure; environmental protection and ecology, reducing the impact on the environment; improving efficiency and promoting humanity, considering ease of use. At the same time, control the height and width of the toilet, and ensure that the mobility device is complete and reasonable.

Requirements for Foundation Installation:

• Load-bearing Capacity: The foundation must be able to bear the weight of the toilet. Lightweight toilets require a foundation load-bearing capacity of about 100 kPa, while large combined types require higher capacities depending on the toilet type, size, and service load.
• Flatness: The surface should be flat, with an error of no more than 20 mm per square meter, to prevent the toilet from shaking and the connection parts from loosening.
• Stability: Avoid geological disaster areas. Soft soil foundations need to be replaced and compacted.
• Size: The foundation size should be slightly larger than the bottom outline of the toilet, with space left around for installation and maintenance.
• Surface Quality: It should be solid and crack-free to avoid affecting load-bearing and stability.
• Anti-corrosion Treatment: In special environments such as coastal areas, the foundation needs anti-corrosion treatment to prevent seawater erosion.