Mobile Toilets at Construction Sites

Mobile toilets at construction sites are facilities set up to meet the temporary and phased toilet needs of construction sites, featuring mobility, modularity, and ease of transportation.

I. Basic Components Mobile toilets are generally composed of fecal sewage storage tanks (or disposal units), floor slabs, sanitary fixtures, walls, washing facilities, water tanks, roofs, and mobile units. In terms of materials, wood was initially used, gradually evolving into corrosion-resistant and lightweight materials such as fiberglass and polyethylene to adapt to the complex environment of construction sites.

II. Classification Methods

1. By structural form: They are divided into single-unit structures (independent units) and composite structures (multi-unit combinations), with the latter capable of expanding capacity to meet the needs of large construction sites.
2. By mobility: They include lifting and handling types (requiring manual or mechanical handling) and powered and towed types (connectable to vehicles for traction and movement), offering high flexibility.
3. By sewage treatment method:
   • Water-flush and non-water-flush suction types: Rely on external water sources or regular suction of fecal sewage.
   • Recirculating water-flush types: Reuse water resources through filtration systems to reduce water consumption.
   • Dry-pack types: Use biodegradable bags to collect feces without flushing, suitable for water-scarce areas.

III. Application Characteristics Color-steel mobile toilets have become a common choice at construction sites due to their sturdiness, resistance to damage, rain, and sun. They can be used immediately after connecting to water and electricity upon arrival, saving time and costs. For example, Dezhou Hongtu Metal Products Co., Ltd. once customized a mobile toilet for a factory in Zhejiang, setting up 7 male squatting positions and 1 female squatting position according to the gender ratio, with installation completed in 4 days, demonstrating the flexibility of customization.

IV. Market and Installation There are numerous brands on the market (such as Naliang, Gelaruisi, and Shiteng), with installation methods including integral lifting, turnkey installation (labor, materials, and installation included), and wall-mounted types. Sewage disposal methods cover water-flush direct discharge, microbial degradation, vacuum collection, and mechanical packing, with heights typically ranging from 2.3m to 3m to adapt to different site requirements.

V. Typical Case When a company customized a mobile toilet for a factory, it adjusted the number of squatting positions according to actual needs, shortening the construction period to 4 days. This illustrates that mobile toilets can be rapidly deployed based on project scale, construction period, and personnel distribution, making them an efficient solution for sanitation facilities at construction sites.