Functional orientation of the three-chamber septic tank toilet and errors in its application in rural toilet reform

Because of its low price and simple operation and maintenance, the three-compartment septic tank toilet has become the main technical mode of the rural toilet revolution in underdeveloped areas. However, there are some widespread misunderstandings about its functional orientation, which will have a negative impact on the correct use of the septic tank, the harmless disposal of manure, and the reuse of manure. Therefore, this paper traced the development of the septic tank, analyzed its functional orientation under different sanitation patterns, and revealed the historical mission of sanitation and environmental protection of septic tank toilets. On this basis, analysis of the three typical misunderstandings of the current rural toilets in some areas, namely, the problem of common use flush toilets, "pipe collection+(centralized) large septic tank","collection+off-site dehydration dry fertilizer", revealed the need to pay attention to the correct use of septic tanks, and incorporated the septic tank toilet in rural areas into the application of rationalization recommendations.