Baoding Mobile Toilet Septic Tank
The septic tanks for mobile toilets in Baoding mostly adopt three-compartment septic tanks, which treat domestic sewage through sedimentation and anaerobic fermentation principles. They have clear structural compositions, design requirements, and treatment effects. Professional companies can be contacted for relevant maintenance and cleaning services.
Principle and Treatment Effect of Three-Compartment Septic Tanks
Three-compartment septic tanks utilize sedimentation and anaerobic fermentation principles to remove suspended organic matter from domestic sewage. Domestic sewage enters the septic tank and undergoes sedimentation for 12 - 24 hours, removing 50% - 60% of the suspended solids. The settled sludge undergoes anaerobic fermentation and decomposition for more than three months, during which organic matter is broken down into stable inorganic substances. The easily decomposed sludge is transformed into stable mature sludge with reduced water content. Regular removal and external transportation of this sludge can be used for landfilling or as fertilizer.
Structural Composition of Three-Compartment Septic Tanks
It consists of three interconnected sealed septic compartments. Feces enter through the inlet pipe and flow sequentially to the third compartment. It is composed of an inlet pipe, compartmentalized tanks, overflow pipes, and cover plates. According to their functions, they are named the sedimentation and fermentation compartment (first compartment), the secondary fermentation compartment (second compartment), and the fecal storage compartment (third compartment).
Design Requirements for Three-Compartment Septic Tanks
The calculated volumes of the sedimentation and decomposition sections of the septic tank should be determined in accordance with the "Code for Design of Building Water Supply and Drainage" (GB50015 - 2003). The sewage retention time should preferably be 12h - 36h. For sewage treatment systems without sludge disposal, the volume of the septic tank should also include the volume for storing sludge.
Function of Three-Compartment Septic Tanks
It receives fresh feces daily, which decompose and stratify during anaerobic fermentation, forming an upper fecal crust, middle fecal liquid, and bottom fecal residue. At the same time, it can retain and settle parasite eggs. The septic tank needs to be tightly sealed to ensure relatively still or slow-flowing conditions inside the tank and have an appropriate hydraulic retention time.
Relevant Service Companies
Haoshitong Pipeline Engineering (Beijing) Co., Ltd. provides mobile toilet maintenance, septic tank cleaning, and fecal pumping services in Wangdu County, Baoding City. The contact number for the Beijing area is 13651152056, and the contact number for other areas in Hebei Province is 13611098718.
