What is the structure working principle of septic tank system?

A septic system is a facility used to collect treat human waste sewage, is often used in places that are away urban water supply sewage treatment networks, such as rural areas remote buildings. Below I will give you a detailed introduction to the structure working principle of the septic system.

1. Structure:

The septic system mainly consists of the following parts:

- Storage tank: Used to collect feces sewage, usually an underground concrete tank plastic container.

- Intake pipes: Connect toilets other waste water discharge pipes to storage tanks.

- Outlet pipe: Discharge the treated water the septic tank.

- Sanitary facilities: such as toilets, washbasins, etc., connected with water inlet pipes.

2. Working principle:

The working principle of the septic system is basically divided into three steps: decomposition, precipitation discharge.

Decomposition: When feces sewage enter the septic tank, bacteria in nature begin to decompose organic material. These bacteria use oxygen as a metabolite, converting organic matter into nitrogen, phosphorus other compounds.

- Precipitation: In the process of decomposition, the heavier material will settle to the bottom to form a sediment, while the lighter material floats on the surface of the liquid to form scum. This layered structure prevents oxygen entering the septic tank promotes the decomposition of organic matter.

- Discharge: After decomposition precipitation, the liquid portion is called the anaerobic digestion liquid can be discharged through the outlet pipe. Then, the solid part will gradually accumulate at the bottom of the septic tank need to be cleaned at intervals.

Septic systems reduce environmental pollution by decomposing settling human waste sewage. It is a common effective treatment method, especially suitable for places without access to urban water supply sewage treatment networks.