網址：www.www.sgfhsl.com 2021-11-15 作者：admin 閱讀：
The three compartment septic tank is composed of three connected tanks, the middle of which is connected by fecal pipes. It mainly uses the principle of anaerobic fermentation, the proportion of fecal and parasitic eggs in the middle layer is greater than that of the general mixed liquid and is easy to precipitate. The feces are fermented and decomposed in the tank for more than 30 days, and the fecal liquid in the middle layer flows from tank 1 to tank 3 in turn, In order to precipitate or kill parasite eggs and intestinal pathogenic bacteria in feces, the fecal liquid in tank 3 becomes high-quality chemical fertilizer.
Fresh feces enter the first tank from the fecal inlet. Feces in the tank begin to ferment and decompose. Due to different specific gravity, fecal liquid can be naturally divided into three layers, the upper layer is pasty fecal skin, the lower layer is massive or granular fecal residue, and the middle layer is relatively clear fecal liquid. The upper fecal skin and lower fecal residue contain the most bacterial and parasitic eggs, and the middle fecal residue contains the least insect eggs. The preliminarily fermented middle fecal liquid overflows to the second tank through the fecal pipe, and most of the fecal skin and fecal residue that have not been fully fermented are prevented from remaining in the first tank for further fermentation. The fecal fluid flowing into the second tank is further fermented and decomposed, the insect eggs continue to sink, the pathogens gradually die, the fecal fluid is further harmless, and the fecal skin and fecal thickness are significantly reduced compared with the first tank. The fecal liquid flowing into the third pool has generally been rotten, in which the bacteria and parasite eggs have been basically killed. The function of the third tank is mainly to store the basically harmless fecal liquid.