The septic tank — a septic tank’s purpose is to separate solids from the wastewater, store and partially decompose as much solid material as possible, while allowing the liquid (or effluent) to go to the drainfield. …more.
What Is Septic Tank Used For?
A septic tank is a key component of a septic system, a small–scale sewage treatment system common in areas with no connection to main sewers.
Septic tanks are used in both rural and urban areas, and are most commonly used in areas where public sewerage systems are not available. A septic tank consists of one or more concrete or plastic tanks of between 4000 and 7500 liters (1000 and 2000 gallons) in size.
The tank(s) are buried in the ground and connected to an inlet and outlet pipe. Wastewater from the home (or other building) flows through the inlet pipe into the septic tank.
The tank allows solids to settle out of the wastewater, and the treated effluent then flows out of the tank through the outlet pipe. The septic tank is a watertight chamber that is typically made of concrete, fiberglass, or plastic.
It is designed to hold sewage from a home or business for a short period of time so that solids can settle out of the waste stream.
This settled material, called sludge, is broken down by bacteria in the septic tank. The effluent from the septic tank then flows through a soil absorption field, where it is further treated by
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