Mobile Toilets in Hefei Earthquake Scenarios

Currently, no special deployment or publicly recorded use of mobile toilets has been found in earthquake scenarios in Hefei. The following is a detailed analysis:

1. Damage to Traditional Sanitation Facilities by Earthquakes
During the 4.7-magnitude earthquake in Feidong County, Hefei, on September 18, 2024, the walls of bathrooms in some villagers' homes in Liangyuan Town, the epicenter, cracked. This indicates that traditional fixed sanitation facilities are prone to becoming non-functional due to structural damage during earthquakes and may even trigger secondary disasters (such as sewage leaks and gas leaks) due to wall collapses and pipe ruptures, hindering post-disaster emergency rescue and residents' lives.

2. Conventional Application Scenarios of Mobile Toilets
Mobile toilet rental services in Hefei are primarily aimed at large-scale outdoor events, municipal engineering projects, or commercial exhibitions, such as marathons, music festivals, and concerts. The equipment types include environmentally friendly water-saving models (suitable for water-scarce environments), modular container models (quick to set up and with large capacity), and smart sensor models (enhancing the user experience). The common characteristics of these scenarios are that they are non-disaster emergency scenarios and have temporary and concentrated demands for sanitation facilities, differing from the needs after an earthquake.

3. Potential Demand and Challenges for Mobile Toilets in Earthquake Scenarios
Although there is no public record, theoretically, there may be a demand for mobile toilets after an earthquake:

• Demand at temporary shelters: If the water and power supply systems in the disaster area are damaged and traditional toilets cannot be used, mobile toilets can be quickly deployed to meet residents' basic sanitation needs.
• Support for rescue teams: Providing sanitation facilities for rescue personnel to avoid reduced work efficiency due to poor sanitation conditions.
• Prevention of secondary disasters: Avoiding environmental pollution or disease transmission due to sewage leaks.

However, actual deployment requires overcoming multiple challenges:

• Logistics and road conditions: Earthquakes may cause road disruptions, making it difficult to transport large mobile toilet equipment.
• Infrastructure support: Issues such as water supply (e.g., water storage tanks), sewage disposal (e.g., septic tanks or pumping services), and power supply (e.g., generators) need to be resolved.
• Sanitation management: In the complex post-disaster environment, it is necessary to strengthen the cleaning, disinfection, and waste disposal of mobile toilets to prevent disease transmission.

4. Existing Cases and Recommendations
No publicly available plans for the large-scale use of mobile toilets in earthquakes have been found in Hefei or other regions in China. If such scenarios need to be addressed in the future, international experience (such as the deployment of emergency sanitation facilities in Japanese earthquakes) can be referenced, and contingency plans can be formulated based on local conditions, including equipment reserves, rapid response mechanisms, and cross-departmental collaboration.