It has far exceeded the similar products of ceramics, hard plastics, steel and other materials, and is widely used in chemical industry, petroleum, construction, textile, aviation, navigation, transportation, electric power, metallurgy, machinery, medical care, food, paper making, environmental protection and other fields.
Extended data:
Fresh manure enters the first tank through the manure inlet, and the manure in the tank begins 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 eggs of bacteria and parasites are the most in the upper dung skin and lower dung residue, and the eggs in the middle layer are the least. The intermediate manure liquid from the initial fermentation overflowed into the second tank through the manure pipe, while most of the manure skins and manure residues that were not fully fermented remained in the first tank for further fermentation.
The fecal liquid flowing into the second pond is further fermented and decomposed, the eggs continue to sink, the pathogen gradually dies, the fecal liquid is further harmless, and the thickness of the fecal skin and feces produced is obviously reduced compared with that of the first pond. The fecal liquid flowing into the third pond has generally decomposed, and the germs and parasite eggs have been basically killed. The function of the third tank is mainly to store basically harmless fecal liquid.
Baidu encyclopedia-FRP septic tank
Baidu encyclopedia-tertiary septic tank