Mobile Public Toilet Manufacturing

Mobile public toilet manufacturing involves multiple aspects such as materials, structure, mobility methods, sewage treatment, and design principles.

Material Selection

Initially, mobile toilets were mostly made of wood. With technological advancements, materials like fiberglass-reinforced plastic (FRP) and polyethylene have gradually been adopted. FRP is lightweight yet hard, non-conductive, has high mechanical strength, is rarely recycled, and is corrosion-resistant. Polyethylene is odorless, non-toxic, has excellent low-temperature resistance, good chemical stability, and can withstand the erosion of most acids and alkalis. These materials make mobile toilets more durable and easier to maintain.

Structural Composition

Generally, they consist of a fecal sewage storage tank (or fecal sewage treatment device), floor, sanitary ware, walls, washing facilities, water tank, roof, and mobility device. The fecal sewage storage tank is used to collect and store excreta; sanitary ware includes toilets or squat pans; walls and the roof ensure the privacy and protection of the toilet; the mobility device facilitates the overall movement of the toilet.

Structural Forms

They can be divided into single-structure mobile toilets and composite-structure mobile toilets. The single structure is relatively simple and suitable for places with limited space or low temporary demand. The composite structure is more complex and may contain multiple functional areas, such as separate areas for men and women and a management room, making it suitable for places with high foot traffic and diverse needs.

Mobility Methods

There are lifting/handling-type mobile toilets and powered/trailer-type mobile toilets. Lifting/handling-type mobile toilets are usually smaller in size and lighter in weight and can be moved by cranes or manual handling. Powered/trailer-type mobile toilets are equipped with power devices or trailer devices and can move on their own or be towed by vehicles, making them suitable for long-distance or frequent movement scenarios.

Sewage Treatment Methods

There are water-flush and waterless suction-type, circulating water-flush type, and dry-packing type methods. The water-flush type uses water from a water tank for flushing, and the sewage is discharged into a storage tank. The waterless suction type uses the principle of vacuum suction to treat excreta. The circulating water-flush type purifies and recycles the sewage. The dry-packing type packs the excreta for treatment without using water.

Design Principles

They should follow the principles of easy mobility, economic durability, environmental protection, ecological friendliness, improved efficiency, and the promotion of humanitarianism. The overall structure should be lightweight, using lightweight and durable materials, with a sturdy structure, controlled height and width, and a well-equipped and reasonable mobility device.