Why Aeration Is Central To Sewage Treatment

Sewage treatment is a multi-stage process focused on removing contaminants from municipal wastewater, making it safe to release into the environment. The process includes pre-treatment, primary, secondary, and tertiary stages. Pre-treatment removes large objects and grit, while primary treatment eliminates organic and non-organic material. Secondary treatment uses aeration and aerobic biological processes to break down remaining organic matter. Tertiary treatment employs advanced techniques to remove tough contaminants like heavy metals and toxins.

Aeration, a key part of secondary treatment, involves the addition of air to promote biodegradation. The goal of sewage treatment is to reduce contaminants to meet environmental regulations for disposal in an energy-efficient manner. Tertiary treatment can purify water to a degree that it can be reused for various purposes, including industrial, agricultural, recreational, and even as drinking water. Read the full article to learn more about where aeration comes into play.