Renovation and Installation of Mobile Toilets

When renovating and installing mobile toilets, it is necessary to comprehensively consider key points such as composition structure, design principles, classification of structure and mobility methods, and toilet displacement handling.

Mobile toilets are typically composed of fecal sewage storage tanks (or disposal units), floor slabs, sanitary ware, walls, washing equipment, water tanks, roofs, and mobility devices. Their design must adhere to three major principles: mobility and cost-effectiveness, with an overall structure that is lightweight yet sturdy, prioritizing the use of lightweight and durable materials while controlling height and width for ease of movement; environmental protection and ecological benefits, taking into account the impact of sewage treatment methods on the environment; efficiency enhancement and humanitarian promotion, meeting functional and humanized needs. For example, the common “2+1” layout (two toilet stalls plus one sink) requires reasonable space planning, and the use of metal carved panels for exterior walls can provide both fire resistance and thermal insulation.

Mobile toilets are classified by structural form into single-unit structures (independent units) and composite structures (multiple units combined); by mobility method into hoisting and handling types (requiring manual or mechanical handling) and powered and towed types (capable of self-movement or being towed by vehicles); and by sewage treatment method into flush and non-flush suction types (relying on septic tanks or pumping), circulating flush types (water-saving and requiring filtration systems), and dry packing types (waterless use with fecal packing). Selection should be based on a comprehensive consideration of usage scenarios, environmental requirements, and maintenance costs.

If adjusting the toilet installation position, a toilet displacement device may be used. Its function is to solve the mismatch of the sewage outlet position, allowing changes to the front-back or left-right positions of the drain. Common displacement distances range from 5 to 10 centimeters, with special cases up to 15 centimeters, but exceeding 15 centimeters can easily lead to poor drainage or blockages. Installation points include: construction before laying floor tiles to ensure tight adhesion between the displacement device and the floor; setting a drainage slope, with the slope requirement increasing with displacement distance (generally not less than 2%), and the need to lower or raise the floor if necessary; avoiding long-term use, as displacement devices may increase drainage resistance, and it is recommended to prioritize adjusting the bathroom layout to avoid displacement needs.

The installation of mobile toilets must strictly adhere to design specifications, selecting structures and mobility methods based on actual needs, and carefully handling toilet displacement issues to ensure functionality and durability.