What is the difference between septic tank and sewage tank?

In this article we know about difference between septic tank and sewage tank and also know the advantage and disadvantages of both.

What are septic tanks?

A septic tank is a small underground structure made of fibreglass, concrete, plastic, or PVC. It is used for wastewater treatment in homes and uses bacterial activity to decompose waste or sewage. It is a small-scale sewer system that is mostly used in areas that do not have access to the government's sewage pipes.

-  Pros of septic tanks-

1. They are more eco-friendly because they do not require power or chemicals to clean wastewater.

2. They are more responsible because house owners who have a septic tank in their home are personally liable for the upkeep and maintenance.

-  Cons of septic tanks-

1. They are more sensitive to solid waste and can be easily damaged.

2. They need more regular maintenance than sewer systems.

What are sewage plants?

To treat and remove pollutants from waste or sewage from houses, a sewage treatment plant or sewer uses a three-stage process. It aims to produce environmentally friendly sewage water and effluent.

-  Pros of sewage plants-

1. They require less maintenance than septic tanks

2. They are less susceptible to damage from solid waste.

-  Cons of sewage plants-

1. Sewer system upgrades can put a serious dent in your wallet. Furthermore, you must pay for its use in the same way that you do for electricity.

2. In addition, the house owner is responsible for the repair and upkeep of the sewer line that connects the house.

Working mechanism:

· Septic tank: Bacterial activity is used in a septic tank. They aid in the breakdown of solid waste. The liquid effluent is then discharged into the drain field.

· Sewage plant: To remove contaminants from wastewater, biological, chemical, and physical processes are used, which is better for the environment. Before being released, solid and semi-solid waste are treated further.

What happens to the waste?

· Septic tank: Even though treated wastewater is not environmentally friendly, it is stored in a holding tank.

· Sewage plant: A sewer treatment plant's sewer lines transport waste to a treatment facility.

Cost factor:

· Septic tank: In India, a septic system for a three-bedroom apartment typically costs around Rs. 5,000. It may rise in response to ones needs.

· Sewage plant: The cost of a public sewer system varies depending on the area.

Maintenance:

· Septic tank: Septic tanks must be pumped every 3 to 5 years in order to function properly. Furthermore, a thorough inspection will reveal how frequently maintenance is required. Even though it is typically for individual houses, the house owner is responsible for septic tank maintenance.

· Sewage plant: In terms of both frequency and effort, it requires less maintenance than septic tanks. Since it is a public sewer system, the local municipality is in charge of its upkeep.

Conclusion:

The main difference between a septic tank and a sewage treatment plant in terms of the process is that a sewage treatment plant purifies the effluent before it is released, allowing it to be released into streams without further filtering.

Aside from the cleanliness of the effluent, there are a few other distinctions.

• Sewage treatment plants require electricity to power the air pump, whereas septic tanks do not.

• Septic tanks do not require servicing (but must be emptied), whereas sewage treatment plants must be serviced and emptied.

• Septic tanks need to be emptied more frequently than sewage treatment plants.

For design and installation of sewage treatment plants for domestic, commercial or industrial purposes, contact Netsol Water. We are just a call away!