Environmental Protection Standards for Mobile Toilets
The environmental protection standards for mobile toilets cover multiple aspects such as material selection, energy efficiency, pollutant control, and resource recycling, as detailed below:
Material Selection
Prohibition of Harmful Substances: The use of materials containing heavy metals such as lead, mercury, cadmium, and hexavalent chromium, as well as coatings and adhesives containing volatile organic compounds (VOCs) like formaldehyde and benzene series, is prohibited. For example, the EU CE certification requires the outer shell materials to comply with the RoHS Directive, and the interior materials to pass the REACH Regulation. Priority for Recyclable Materials: The use of recyclable materials such as recycled plastics, bamboo, and aluminum alloys is encouraged. China's 'Green Product Certification' requires that the proportion of recyclable materials be no less than 30%. Application of Biodegradable Materials: Biodegradable materials (such as polylactic acid (PLA) and starch-based plastics) are used for toilet bowls and partitions. Japan's 'Eco-Mark Certification' requires that the proportion of biodegradable materials be over 50%.
Energy Efficiency
Low-Energy Design: LED lighting and solar power systems are adopted, with the average daily power generation of solar panels needing to cover basic power demands. The U.S. Energy Star certification requires that the energy efficiency of lighting systems be over 60% higher than that of traditional lighting fixtures. Energy-Saving Equipment: Accessories such as variable frequency fans and low-flow water valves are used. China's 'Energy-Saving Product Certification' requires that the fan power does not exceed 50W and the water valve flow rate is ≤3L/min. Intelligent Control System: Lighting and ventilation intensity are automatically adjusted through sensors. Germany's Blue Angel certification requires a 40% reduction in energy consumption compared to traditional models.
Pollutant Control
Wastewater Treatment: Septic tanks, microbial treatment tanks, or membrane bioreactors (MBRs) are equipped, and the treated water must meet the reclaimed water standards (e.g., COD ≤ 50mg/l, ammonia nitrogen ≤ 10mg/l). Australia's Watermark certification requires compliance with local municipal wastewater standards. Exhaust Gas Purification: Activated carbon filters or photocatalytic devices are installed. China's 'Environmental Label Certification' requires that the ammonia concentration in exhaust gases be ≤0.5mg/m³. Noise Control: The noise level during equipment operation is below 55 decibels. The EU CE certification requires compliance with the EN 12053 standard (daytime ≤ 55db, nighttime ≤ 45db).
Resource Recycling
Excrement Resource Utilization: Techniques such as composting and biogas power generation are used to convert excrement into organic fertilizers or clean energy. The compost products must comply with organic fertilizer standards (e.g., N+P₂O₅+K₂O ≥ 5%).
Other Specifications
These include spacing between installation points, facility configuration, site selection suitability, and compliance acceptance, which must comply with the 'Standards for the Installation of Urban Environmental Sanitation Facilities'. Detection reports and environmental protection filing qualifications must be provided.
