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What Are The Stages of Wastewater Treatment?

What Are The Stages of Wastewater Treatment?

There are three main stages of the wastewater treatment process, aptly known as primary, secondary, and tertiary water treatment.

More advanced treatment is required in some applications, known as quaternary water treatment.


  • What is the primary water treatment?

Primary wastewater treatment is the process of removing solid matter from wastewater. This process generally utilizes mechanical equipment to break up larger particles.

  • What is the secondary water treatment?

Secondary water treatment uses biological processes for extraction. Through secondary wastewater treatment, smaller particles are removed.

  • What is the tertiary water treatment?

The aim of tertiary wastewater treatment is to raise the quality of the water to domestic and industrial standards or to meet specific requirements around the safe discharge of water.

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