[沅 格 FRP products] Septic tank widely used
） (Picture from the home of electromechanical )
Compared with general sewage discharge wells, septic tanks are extremely prone to produce biogas. Generally in the sewage pipe, because there is water flowing, even if biogas is generated, it will be discharged outward with the water flow and the small holes in the well cover. The septic tank is different. It uses the principles of sedimentation and anaerobic fermentation to remove suspended organic matter in domestic sewage. Anaerobic reaction will produce a large amount of biogas.
China currently has brick septic tanks, reinforced concrete septic tanks, glass reinforced plastic septic tanks, and stainless steel septic tanks. Since the construction of septic tanks in the urban area is basically stereotyped products, in daily work, the staff is generally only responsible for selecting the material of the septic tank according to the standard and the planned location. Generally, septic tanks are placed in places that are relatively inaccessible to ordinary people, such as green belts and edge areas of roads.
Although there are generally two small holes in the manhole cover for venting, they are generally small, and if they are set in the middle of the road, they are easily blocked. Biogas contains a large amount of methane, and it will explode if it encounters a micro ignition source or friction. Its impulse is so great that any manhole cover of any material can't stop it at present.
In order to prevent the explosion of biological septic tanks, first of all, residents of the community should not dump slag into the septic tank at random and keep it cleared regularly. In addition, do not set off firecrackers in sewage wells, septic tanks and sewer mouths, and keep away from fire At the same time, each septic tank should be provided with a special ventilation pipe and unobstructed.