Building a septic tank is absolutely necessary in places without sewers or a centralized sanitation network system. Although in a lot of cities there’s a centralized sanitation system, there’s a lot of other places where there’s no access to a sewer system or centralized sanitation networks and probably never will.
Rural areas with a disperse and low density population, urban peripheries and isolated places, amongst others are often deprived of municipal sewer networks. Further, and given all of the unconventional factors around these living spaces make the installation of a centralized sanitation system economically unappealing, and in some cases not even feasible for the local government and other institutions in charge of the supply of these services.
When this is the case, it is of utmost importance and absolutely necessary to install this sanitation systems in-situ, in a way that’s autonomous and independent, making the septic tank for storage, treatment and evacuation of the domestic effluents the most logical and practical solution.
But what’s the purpose of it all? Well, septic systems fulfill the purpose of avoiding soil, underground and superficial water bodies to be get polluted with wastewater to avoid human diseases. Remember that sanitation is key to keep clean zones for people that are fit to sustain a healthy life, free of disease and plague.
It is important to know, that all effluents represent most of the waste a house can generate: feces, dust, leftovers, toilet paper, soap, laundry detergent and cleaning products. And since all feces contain pathogens, which can contaminate the residual water of a house, the lack of a septic system or another kind of permanent sanitation mechanism makes it dangerous for people and the environment.
If your property doesn’t have access to the local sewage system, then building a septic pit will help you sanitize and depurate your properties effluents at a larger scale, minimizing direct exposition of humans, pets and the overall environment to the potentially dangerous residues of your everyday activities at home.
Since your septic tank is the primary treatment unit after municipal domestic sewers, these systems combine physical and biological processes that are meant to:
- Remove most of the solids which are a part of the residual domestic water
- Split these solids in the septic chamber
- Retain the solids that do not decompose (Organic refractory matter)
Additionally, the physical processes in the septic tank include:
- Sedimentation, which is the separation – by effect of gravity — of the suspended particles heavier than water.
- Flotation, which is the retention of suspended solids – usually fat.
Whether sediment or floating, all solids must be periodically removed from the septic chamber, to its final place of disposal.
