Septic System is known as septic tank soil treatment system and refers to a long standing and effective method for treating, collecting and disposal of sewage to sub-urban from rural homes. This article will answer some of the most asked questions about septic systems.
Why you should use Septic System
Septic systems are usually used when you cannot access sewage treatment plants. They are capable of safely treating and disposing of wastewater produced in the kitchen, bathroom and laundry. This is because these wastewaters contain harmful pollutants and germs that can cause diseases and thus need to be treated to protect the environment and human health. They mostly act as a temporary solution until when you are capable of installing sewer lines.
What usually takes place in the Septic System?
All of the wastewaters from your home should flow into the septic system’s tank. It is good to note that even waters from the bathtub, shower and washing machine can also contain harmful germs to the environment and human health. As the wastewater flow into the tank, the solid materials that are heavier settle to the bottom, thus forming a sludge layer, the lighter fats and greases float to the top and form a scum layer and then the liquid which is the sewage effluent then flows out. What prevents the solids from flowing out together with the liquid is an outlet baffle at the outlet end. Thus, the primary purpose of the tank is to retain the solids and then release the sewage effluent to drain field.
What happens in the drain field and the soil?
The soil beneath the drain field is where the real waste-water treatment occurs. When the sewage effluent comes out of the tank, it still contains germs that are harmful to human health and also environmental pollutants. As this effluent flows through the soil, most of bacteria that cause diseases are filtered out while some of the smear germs like viruses are absorbed into the soil by the time they are destroyed. In addition, the soil can also retain certain chemicals, including some forms of nitrogen and phosphorous.