Zhoushan Water-Saving Mobile Toilet

The Zhoushan water-saving mobile toilet is a mobile sanitation facility that employs multiple water-saving technologies to meet the needs of island environments. Through technological optimization and flexible deployment, it effectively alleviates the challenges of toilet usage in scenarios with freshwater scarcity and high foot traffic.

Technology Types and Water-Saving Principles

The water-saving technologies of Zhoushan mobile toilets fall into two main categories:

1. Flush Type: Utilizes a small water tank and pressure flush valve to achieve precise flushing, reducing water consumption per flush by over 50% compared to traditional toilets. It is suitable for short-term event scenarios with freshwater supply.
2. Flush-Free Type:
   • Foam Sealing Technology: Uses a foaming agent to generate dense foam that covers the surface of excreta, isolating odors and reducing water evaporation. Only a small amount of water is needed to maintain foam stability, achieving a water-saving rate of over 90%.
   • Microbial Degradation Technology: Decomposes organic matter through specific bacterial strains, converting it into harmless gases and a small amount of residue. No flushing is required throughout the process, making it suitable for remote islands or long-term construction sites without freshwater access.

Core Functional System Design

1. Waste Collection: Employs detachable fecal storage buckets or biodegradable bags, with some models connected to small septic tanks for easy regular removal or on-site treatment.
2. Flushing System: The flush type is equipped with intelligent sensors to prevent human waste, while the flush-free type achieves waterless treatment through foam generators or microbial reactors.
3. Ventilation and Deodorization: A forced exhaust system combined with activated carbon filtration or photocatalyst technology ensures that air quality meets standards in enclosed spaces, particularly adapting to the high-humidity marine climate.

Application Scenarios and Deployment Advantages

The Zhoushan Archipelago is geographically dispersed and subject to high humidity and strong salt spray corrosion due to monsoon influences. The deployment of mobile toilets must balance flexibility and durability:

• Short-term Events: Such as the Putuo Mountain Incense Festival and the International Sand Sculpture Festival, mobile toilets quickly supplement the shortage of fixed toilets through "on-demand allocation" and can be transferred to other areas after the events.
• Construction Sites: During construction on remote islands, microbial degradation toilets can operate independently for more than six months, reducing the interference of sewage discharge with the nearshore ecosystem.
• Peak Tourist Seasons: In scenic spots like Zhujiajian and Taohua Island, foam-sealing toilets adopt a "one toilet, one bucket" model to achieve centralized waste treatment and resource recycling.

Environmental Requirements and Maintenance Services

1. Material Corrosion Resistance: Exposed metal components are made of 316 stainless steel or hot-dip galvanized to withstand high salinity environments, with electrical systems encapsulated in waterproof boxes.
2. Waste Treatment: Direct landfilling is prohibited. Waste must be treated through biological degradation, chemical decomposition, or professional removal trucks transported to municipal treatment plants to avoid soil and seawater pollution.
3. Rental Services: Provides a full range of services from needs assessment to waste removal, supporting 24/7 emergency response to ensure the stable operation of facilities during extreme weather conditions such as typhoons and heavy rain.