Renovation of Mobile Toilets in Tongzhou Urban Area
The renovation of mobile toilets in Tongzhou urban area has adopted multiple measures, including introducing new technologies, enhancing functionality and interior design, promoting the application of environmental protection technologies, and achieving intelligent management.
In terms of introducing new technologies, firstly, biodegradable mobile toilets are adopted, which do not rely on traditional water-flushing sewage systems. Instead, they use microorganisms to decompose and treat excrement, with the final product serving as a soil conditioner for green maintenance. Secondly, the "intelligent micro-water flushing" technology is applied, such as in the "Liyuan Road Public Toilet" and "Xingfu Yiju Public Toilet," integrating the concepts of "technology, ecology, and environmental protection." By combining a small amount of water with efficient bacterial agents, this technology ensures cleaning effectiveness while decomposing odor substances at the source, effectively preventing pipe blockages and winter freezing issues, achieving a water-saving rate of over 90%.
Regarding the enhancement of functionality and interior design, in terms of functional integration, the interior space design of mobile toilets incorporates modules for barrier-free access, maternal and infant care, and emergency calls. Some facilities are equipped with environmental sensing devices that can monitor gas concentrations in real-time and adjust the air status in conjunction with the ventilation system; others optimize the structure to reasonably distribute facilities for adults, children, and special populations. In terms of appearance and interior environment, the newly unveiled mobile public toilets feature a simple and modern exterior design, occupying a small area and harmoniously blending with the surrounding streetscape. The interior space layout is compact, with sufficient lighting and good ventilation, creating a clean, tidy, and odor-free overall environment.
In the promotion of environmental protection technology applications, in terms of resource treatment technologies, relying on two technical paths of in-situ treatment and centralized recycling, for example, urine can be converted into slow-release fertilizer through struvite crystallization technology, and flushing water can be reused for non-potable purposes after filtration and disinfection. In terms of resource recycling, involving three dimensions of water, materials, and energy, through the collaborative scheduling of intelligent control systems, overall energy efficiency is optimized.
In terms of intelligent management, new mobile toilets achieve status monitoring, usage data analysis, and maintenance warnings through the Internet of Things network. Managers can remotely obtain facility information and dynamically adjust cleaning, maintenance, and resource replenishment scheduling plans to improve the precision of resource utilization.
Regarding the renovation progress, Tongzhou Jinghuan Company completed the upgrading and renovation of 7 mobile public toilets in November 2025 and plans to renovate 30 mobile public toilets in the 155 area of Tongzhou District in 2026.
