Feces Disposal in Rural Mobile Toilets
The disposal of feces after defecation in rural mobile toilets needs to be comprehensively determined based on the responsible party, environmental protection requirements, and toilet type. The specific disposal methods are as follows:
I. Disposal Methods Based on the Responsible Party
Mobile toilets managed by the government or renovation implementers If the mobile toilets are uniformly managed by the government or renovation implementers, they need to arrange for professional cleaning teams to regularly handle the feces. The cleaning frequency is determined according to the number of users and the toilet capacity to ensure that the feces are transported to sewage treatment facilities that meet environmental protection standards (such as municipal sewage pipelines and centralized sewage treatment stations) or harmless treatment sites (such as composting plants and biogas digesters). The treatment process should comply with national standards such as the "Hygienic Requirements for Harmless Disposal of Feces" (GB 7959-2012) to avoid secondary pollution.
Mobile toilets managed by villagers themselves If the mobile toilets are maintained by individual villagers, they need to contact the local rural environmental sanitation management department or qualified cleaning service agencies to handle the feces in accordance with local environmental protection regulations. It is strictly prohibited to randomly dump feces into farmland, rivers, or open environments, as this may violate the "Water Pollution Prevention and Control Law" or the "Solid Waste Pollution Environment Prevention and Control Law". Some regions require that feces be subjected to harmless treatment (such as high-temperature composting) before they can be returned to the fields for utilization.
Special feces containing harmful substances If the feces are detected to contain harmful substances such as heavy metals and pathogens (such as those contaminated by medical waste), they should be managed in accordance with the "List of Hazardous Wastes" and the "Measures for the Management of Hazardous Waste Transfer Manifests". Professional treatment should be carried out by institutions with hazardous waste treatment qualifications (such as hazardous waste disposal centers) to prevent soil and water pollution.
II. Treatment Technologies Based on Toilet Type
Flush-type mobile toilets Feces are flushed into the bottom sewage tank through the water in the top water tank. The contents of the sewage tank need to be regularly pumped out. The pumping frequency depends on the number of users (such as pumping once every 50 person-times) to avoid overflow. The pumped fecal sewage needs to be transported to a sewage treatment plant or a septic tank for further treatment.
Non-flush suction-type mobile toilets Excreta is directly collected in the sewage tank without a flushing process. Due to the relatively small capacity of the sewage tank (usually 1-2 cubic meters), more frequent pumping is required (such as pumping once every 30 person-times). The fecal sewage can be transported to a biodegradation tank or a solar composting house for harmless treatment through microbial decomposition, and the final product can be used for greening and fertilization.
III. Key Precautions
- Environmental protection compliance: All disposal methods should comply with the requirements of the local environmental protection department to avoid being punished for illegal dumping.
- Regular maintenance: Regardless of the toilet type, the tightness of the sewage tank should be regularly checked to prevent leakage and soil pollution.
- Public education: It is necessary to strengthen the publicity of knowledge on feces classification and harmless treatment among villagers to reduce random dumping behavior.
