A sewage treatment plant produces a clean, non-polluting effluent which can be discharged directly to a stream ditch or other watercourse, or to a soakaway for dispersal into the soil. Septic tanks do not require electricity for the process, but all sewage treatment plants, except the BIOROCK, do.

A septic tank is a mini sewage treatment plant that is commonly used in areas where there is no access to a centralized sewage system. It is an underground chamber that collects and treats wastewater from households and other buildings.




How does a septic tank work?
A septic tank operates by utilizing a combination of natural processes to treat wastewater. Here is a breakdown of how it works:

1. Wastewater enters the tank: All wastewater generated from toilets, sinks, showers, and other drains in the building is directed into the septic tank.

2. Solids separation: Once inside the tank, the wastewater undergoes a process known as primary treatment. This involves the separation of solids from the liquid. Heavier solids settle at the bottom of the tank, forming a layer of sludge, while lighter materials such as grease and oils float to the top, forming a scum layer.

3. Bacterial digestion: The liquid portion of the wastewater, called effluent, remains in the middle layer of the tank. This effluent is rich in bacteria, which naturally digest and break down the organic matter present in the wastewater.

4. Effluent discharge: As new wastewater enters the tank, the treated effluent gradually fills up the tank and is pushed out into the drain field. The drain field consists of a series of perforated pipes or chambers buried in the ground. The effluent is evenly distributed in the drain field, allowing it to percolate through the soil.

5. Soil filtration: Once in the drain field, the effluent undergoes further treatment as it passes through the soil. The soil acts as a natural filter, removing remaining impurities and harmful bacteria. This filtration process also helps to prevent groundwater contamination.

6. Final treatment: After passing through the soil, the effluent is further treated by beneficial bacteria and organisms present in the environment. This final treatment ensures that the wastewater is fully purified before it re-enters the groundwater or nearby water bodies.




Advantages of a septic tank:

- Cost-effective: Installing a septic tank is generally less expensive than connecting to a centralized sewage system.
- Self-sufficient: A septic tank can operate independently without relying on external energy sources.
- Environmental-friendly: The natural treatment processes used in septic tanks help to minimize pollution and protect water sources.
- Versatility: Septic tanks can be installed in various terrains and are suitable for both urban and rural areas.
- Low maintenance: With proper care and regular inspections, septic tanks can have a long lifespan and require minimal maintenance.




Conclusion:
A septic tank serves as a decentralized sewage treatment solution, providing an efficient and environmentally-friendly way to treat wastewater. Through a series of natural processes, it separates solids from liquids, treats the effluent, and allows for further purification in the soil and surrounding environment. With its cost-effectiveness and versatility, a septic tank is a practical option for areas without access to centralized sewage systems.

No because it just a storage tank so that the waste will not go anywhere