Biological Bacteria Mobile Toilet

A biological bacteria mobile toilet is an environmentally friendly device that utilizes specific microbial communities to treat human waste, achieving harmless and resourceful disposal. Its technical principles, types, characteristics, advantages, and design concepts are as follows:

Technical Principles
It primarily relies on specific microbial communities (such as aerobic bacteria, facultative anaerobic bacteria, and enzyme preparations) to treat waste through biodegradation in a closed environment. After waste enters the treatment chamber, the microbial community hydrolyzes macromolecular substances (such as proteins, cellulose, and fats) into small molecules through extracellular enzymes, which are then oxidized and decomposed into carbon dioxide, water, inorganic salts, and humus. The entire process occurs at room temperature without the need for chemical agents, preventing sewage and odors from the source.

Types and Characteristics

1. Waterless Flush Types
   • Waterless Packaging Type: Uses biodegradable film to package waste, with mechanical devices automatically sealing it, requiring no water source or plumbing.
   • Waterless Biological Treatment Fertilizer Production Type: Converts feces into organic fertilizer and urine into liquid fertilizer through biochemical reactors.
   • Waterless Flushable Ecological Toilet: Separates urine and treats it into a flushing solution, which, when mixed with feces, turns into an odorless fluid.
2. Water-Saving Types
   • Foam Sealing Type: Uses foaming solution instead of water for flushing, achieving a water-saving rate of over 90%.
   • Vacuum Suction Type: Utilizes air pressure differences for waste discharge, consuming only 0.5-1 liters of water.
3. Recirculating Water Flush Types
   • Biological Treatment Type: Purifies feces and urine through electrocatalytic reactions, reusing clean water for toilet flushing or landscaping, powered by solar energy.
   • Membrane Separation Type: Uses membrane technology to separate supernatant for producing clean water and ferment feces into fertilizer.

Advantages

• Environmentally Friendly: Microbial agents are naturally renewable, and decomposition products can be used as fertilizers, avoiding chemical pollution.
• Energy-Saving and Consumption-Reducing: Requires no external water source and has extremely low energy consumption for room-temperature treatment, meeting low-carbon requirements.
• Widely Applicable: Can be flexibly deployed in areas lacking fixed facilities, such as parks, scenic spots, and construction sites.
• Easy Maintenance: Produces less residue, requires infrequent cleaning, and is odor-free, improving the usage and maintenance environment.

System Integration and Design

• Smart Monitoring: Sensor systems collect real-time data on temperature, humidity, etc., dynamically adjusting ventilation, stirring, and microbial nutrient supplementation.
• Energy Recycling: Integrates solar photovoltaic panels for self-sufficient energy; some designs recover pure water through condensation technology.
• Modular Structure: Uses aviation aluminum or composite materials for lightweight and corrosion-resistant construction; functional units are independently modularized for easy transportation and assembly.

Application Cases
In 2022, 13 venues at the Beijing Winter Olympics adopted this technology, with the cost per toilet seat being 100,000 yuan lower than that of traditional water toilets. In Chengdu, the carbon-neutral public toilets in 2024 saved over 3,000 tons of water annually, supported operation in environments as cold as -28°C, and had annual maintenance costs of only 15,000 yuan.