Shanghai's New Environmentally-Friendly Mobile Toilets

Shanghai's new environmentally-friendly mobile toilets come in a variety of types, incorporating numerous innovative designs and functions, and are widely used in urban public spaces and large-scale event venues.

I. Classification by Technology Type

1. Solar-Powered Environmental Toilets
   Developed by Shanghai Huajie Ecological Environment Engineering Co., Ltd., these toilets are powered by solar panels, achieving self-sufficiency in energy for lighting, ventilation, and other functions. Their advantage lies in reducing reliance on the traditional power grid, making them suitable for outdoor scenarios without power access, such as marathons and mountain events.
2. Rainwater Harvesting Water-Saving Toilets
   Also from Huajie, these toilets convert rainwater into flushing water through a rooftop rainwater harvesting system and filtration device, significantly reducing water consumption. They are mostly used in water-scarce areas or temporary events, such as some venues during the Shanghai World Expo.
3. Contactless Smart Public Toilets
   Shanghai's first fully contactless public toilet employs sensor technology to automate operations such as door opening/closing, flushing, and handwashing, reducing the risk of cross-infection. Its tech-savvy design meets the public health needs of the post-pandemic era, becoming a model for upgrading urban public facilities.

II. Classification by Structure and Function

1. Lightweight Assembled Mobile Toilets
   Huajie's modular design allows for quick assembly and disassembly, facilitating transportation to different locations. They are suitable for temporary events or emergency scenarios. For example, such toilets were deployed during the Beijing Olympics to meet peak pedestrian flow demands.
2. Prefabricated Public Toilets
   A product of Shanghai Weize Environmental Engineering Equipment Co., Ltd., these toilets are assembled on-site using prefabricated components, shortening the construction period. They are equipped with an efficient sewage treatment system that purifies wastewater to reclaimed water standards for green irrigation or recycling for flushing.
3. Eco-Friendly Public Toilets
   Another masterpiece from Weize, these toilets treat feces through biodegradation technology, reducing the use of chemical agents and lowering environmental pollution. They are mostly used in ecological protection zones or areas with strict environmental requirements, such as Shanghai Oriental Land.

III. Customized Design by Scenario

1. Apple Pod-Shaped Mobile Toilets
   Customized for Shanghai customers, these toilets feature separate compartments for men and women, with metal carved panels on the exterior for waterproof, moisture-proof, and high-temperature resistance. A public handwashing area is set in the middle to enhance convenience, making them suitable for commercial districts or tourist attractions.
2. Special Scenario Application Cases
   Huajie's mobile toilets have served extreme environments such as the 101st floor of the Shanghai World Financial Center and the Olympic torch relay on Mount Everest, verifying their adaptability and reliability. Additionally, the rapid deployment capability of lightweight assembled toilets has been fully demonstrated in marathons across various locations.

Shanghai's new environmentally-friendly mobile toilets have promoted the intelligent and green transformation of urban public health facilities through technological innovation and scenario adaptation, providing a practical model for sustainable development.