Mobile Toilet

A mobile toilet is a facility that can be moved as a whole and provides toilet services to the public. It has the advantages of being movable, combinable, and easy to transport.

Composition and Materials

A mobile toilet generally consists of a fecal sewage storage tank (or fecal sewage treatment device), floor slab, sanitary ware, walls, washing equipment, water tank, roof, and moving device. Initially, it was made of materials such as wood, with a simple structure and function, and was prone to absorbing odors. Later, it gradually evolved to use materials such as fiberglass and polyethylene.

Classification Methods

• By structural form: It can be divided into single-structure mobile toilets and composite-structure mobile toilets. The single-structure type is relatively simple and independent, while the composite-structure type may be more complex in terms of function or space combination.
• By moving method: It is classified into lifting and handling-type mobile toilets and powered and trailer-type mobile toilets. The lifting and handling type may be suitable for relatively small scenarios where manual or simple mechanical operations are feasible; the powered and trailer type can be moved with the help of power equipment such as vehicles and is suitable for long-distance or large-scale moving needs.
• By sewage treatment method: It is divided into water-flush and waterless-flush suction-type mobile toilets, circulating water-flush mobile toilets, and dry-packing mobile toilets. The water-flush type is similar to traditional toilets, but the water consumption may be optimized; the waterless-flush suction type treats feces through suction; the circulating water-flush type can recycle water to save water resources; the dry-packing type packs feces for treatment, reducing sewage generation.

Origin and Application

It originated from people's temporary and phased needs for toilets in specific situations. Due to the shortage and unreasonable layout of urban public toilets, the government has placed them in areas where it is relatively difficult to build fixed public toilets to make up for the deficiency in the number and layout of public toilets. For example, in 2023, mobile toilets were gradually installed and put into use in the scenic area along the Yellow River in Lanzhou.

Design Principles

It should follow the principles of being easy to move, economically durable; environmentally friendly and beneficial to the environment; improving efficiency and promoting humanity. The overall structure should be light and consider using light and durable materials as much as possible. The structure should be sturdy, and the height and width of the toilet should be controlled. The moving device should be complete and reasonable. In addition, there are designs such as an integrated outer shell + reinforced chassis, with an internal vacuum squat pan and pneumatic flushing. A single flush requires only 1 liter of water, saving 80% compared to ordinary toilets. There are also mobile toilet rental services, such as those provided by Shangrao Qianghong Environmental Protection Equipment Co., Ltd.