Labeled with the symbol HC.
Septic tank (huàfènchí) is the treatment of feces and filtering precipitation equipment. The principle is that the solidified material in the bottom of the pool decomposition, the upper layer of hydrated objects, into the pipeline flow away, preventing the clogging of the pipeline, to the solidified objects (feces and other waste) have enough time to hydrolyze. Septic tank (septic tank) refers to the domestic sewage compartment precipitation, and anaerobic digestion of sludge small treatment structures.
Expanded:
One, the role of the septic tank
Septic tank is a basic sludge treatment facilities, but also pre-treatment of domestic sewage facilities, its role is manifested in:
1, to protect the environmental health of the living community, to avoid the proliferation of domestic sewage and pollutants in the living environment.
2, in the septic tank anaerobic corrosion of the working environment, kill mosquitoes and flies.
3, temporary storage of sludge, organic sludge for anaerobic putrefaction, cooked organic sludge can be used as agricultural fertilizer.
4, pre-treatment of domestic sewage (primary treatment), precipitation of impurities, and hydrolysis of macromolecules of organic matter into acids, alcohols and other small molecules of organic matter, to improve the subsequent sewage treatment.
Two, the process
Septic tank is the use of sedimentation and anaerobic fermentation principle to remove suspended organic matter in domestic sewage treatment equipment. High-efficiency corrugated glass fiber reinforced plastic septic tank is equipped with a partition, the holes on the partition are dislocated up and down, so it is not easy to form a short flow, and the whole tank is divided into three parts; the first anaerobic chamber, the second anaerobic chamber and the clarification chamber, the first and the second anaerobic chambers are connected to each other at the bottom, and the inner part of the tank is equipped with "special filler for MDS".
This separation reduces the contact time between sewage and sludge, so that the two processes of acidic fermentation and alkaline fermentation do not interfere with each other, and at the same time, the presence of filler increases the contact surface area between sewage sludge and anaerobic bacteria, which greatly improves the reaction efficiency.
Baidu Encyclopedia-Septic Tank