what are septic tanks ? how are they useful
Answers
Explanation:
A septic tank is an underwater sedimentation tank used for wastewater treatment through the process of biological decomposition and drainage. Septic tanks allow a safe disposal of wastewater and hence are widely popular in areas that have a poor drainage system or are off the mains sewage network.
A septic tank is an underground chamber made of concrete, fiberglass, or plastic through which domestic wastewater flows for basic treatment. Settling and anaerobic processes reduce solids and organics, but the treatment efficiency is only moderate. Septic tank systems are a type of simple onsite sewage facility.
Septic tanks are often used in rural areas, campgrounds, and picnic areas in place of sewer systems to treat human waste and separate solids and liquids in wastewater. The liquid portion of the waste is disposed of through a drain field where natural filtering takes place in the soil.