Discharge of sewage to progenitor and the human being's life waste pollution. The impurities containing a large amount of feces, confetti, parasite, 5D biochemical oxygen demand BOD is generally between 100 mg/L-300 mg/L. total organic carbon is 100mg/L-350mg/L. general neutral weak alkali, suitable for microbial breeding. The role of FRP septic tank
The sewage into the glass steel septic tank, without stirring, heating, under natural conditions, after a few hours after precipitation of impurities in the sewage can be feces, confetti, bacteria and pathogens such as removal of about 50%-60%, sludge settling down in a closed time or lack of leisure conditions next month of anaerobic decomposition. The organic matter into the stable state, the sludge with acidic hair more than 3 months after the dehydration of drunk aging, can be put forward as sludge fertilizer. The BODS of domestic sewage in the treatment of sewage treatment is reduced by about 20%.
Thus, the main effect is the removal of sewage pool in precipitation and suspended dirt storage wells. The anaerobic digestion sludge settling in the bottom of the pool. And the sludge concentration. For sludge cleaning treatment, to a certain extent to protect the environment.! The role of FRP septic tank