The three-format fecal tank is composed of three connected tanks separated by partitions connected by pipes. The ratio of the three grids is 2:1:3, which is mainly used for anaerobic fermentation, middle-level waste parasites. Based on the principle that the general mixed liquid has a specific gravity is easy to settle, the feces are fermented decomposed in the tank for more than 30 days, the middle layer of fecal liquid flows 1 to 2 3 in order to settle kill the parasite eggs intestines in the feces. For the purpose of pathogenic bacteria, the manure liquid of the third tank of the integrated septic tank becomes a high-quality fertilizer.
