Shanghai 4+1 Mobile Toilet

Shanghai has "4+1+1" type mobile toilets, with common models including waterless packing, foam-sealing luxury, and luxury micro-flush types. Some areas have also deployed "4+1" structure mobile toilets to meet high pedestrian traffic demands.

Specific Models of "4+1+1" Mobile Toilets

The "4+1+1" mobile toilets promoted in Shanghai typically refer to a modular structure consisting of 4 independent toilet stalls, 1 management room, and 1 tool room. Based on functional design differences, they are mainly divided into the following three categories:

1. Waterless Packing Mobile Toilet 4+1+1: Utilizes waterless flushing technology, collecting waste with biodegradable environmental bags, eliminating the need for connection to water supply and drainage systems, suitable for water-scarce or temporary use scenarios. The management room is equipped with storage and cleaning functions, while the tool room is used for storing maintenance equipment.
2. Foam-Sealing Luxury Mobile Toilet 4+1+1: Uses foaming liquid to cover the surface of waste, forming a sealed layer to block odors while reducing flushing volume. The toilet stalls are usually equipped with smart sensing systems, the management room can monitor the remaining amount of foaming liquid, and the tool room is used for storing refill liquid and cleaning tools.
3. Luxury Micro-Flush Mobile Toilet 4+1+1: Combines water-saving technology, with a single flush volume less than 50% of traditional toilets, achieving water reuse through a circulation filtration system. The toilet stall design focuses on privacy and comfort, the management room integrates sewage treatment monitoring functions, and the tool room is used for storing filter elements and repair parts.

Application Scenarios of "4+1" Structure Mobile Toilets

The Shanghai Waigaoqiao Free Trade Zone has deployed "4+1" structure mobile toilets (4 toilet stalls + 1 management room) to meet the toilet demands of 50,000 to 80,000 people per day. These toilets achieve efficient operation by optimizing spatial layout and sewage treatment capacity:

• Efficient Sewage Treatment: Adopts biodegradation or chemical treatment technologies to rapidly decompose waste, reducing odors and pollution.
• Water-Saving Function: Some models are equipped with micro-flush or vacuum suction systems, with a single water usage volume as low as 0.5 liters, suitable for areas with water scarcity.
• Modular Design: Facilitates rapid assembly, disassembly, and transportation, allowing flexible adjustment of the number of toilet stalls based on pedestrian traffic to meet the needs of temporary events or long-term use.

The aforementioned mobile toilets enhance functional adaptability through modular combinations, allowing independent use or customization by adding or removing toilet stalls or management rooms to meet different scenario requirements, reflecting Shanghai's technological innovation and practical orientation in public facility construction.