The commonly used septic tank is generally composed of three prefabricated concrete septic tank molds. The installation method of three sections is very advantageous. Let me introduce it in detail. The installation of three sections can ensure the full reaction and multiple sedimentation of sludge, so as to effectively separate and prevent the blockage of pipeline. The domestic sewage enters into the prefabricated parts of the septic tank on the top floor from the water inlet. In the prefabricated parts of the concrete septic tank mold, the heavy solid matter will first settle at the bottom of the tank, and the solid matter settled at the bottom of the tank will react with the bacteria in the water, so as to carry out the decomposition. The remaining sewage will be in a turbid state, and then it will flow to the secondary septic tank. At this time, the sewage has been digested and treated, the bacteria and insect eggs are basically eliminated, and then it will be precipitated for the second time, and then it will enter the tertiary septic tank. At this time, it is mainly to discharge the clarified sewage, so as to make more space for the septic tank to ensure more sewage Handle.
At present, the octagonal or circular septic tank mold of the overall structure is widely used in various communities. According to the structure of octagonal septic tank mold, three sections are often connected together, and there will be a pipeline channel below, on which a material cap will be placed, so as to form a concrete septic tank with dozens or more placed side by side. The design and description of the septic tank mold represents not only the production level of the steel mold, but also the expectation of the prefabrication plant to use the mold all the year round. According to the steel plate for making the septic tank steel formwork now, it is later said that the 5mm panel meets the requirements of vibration and deformation, while the 10mm thickened plate used for the outer reinforcement prolongs the service life of the mold, thus saving a large amount of mold cost in the long run. The use of septic tank is the surface of civilization and progress in the treatment of toilet waste in urban and rural areas, and the septic tank can be used to extract clean energy, so that two birds with one stone can be achieved.