Sewage Treatment Plant

What Are Sewage Treatment Plants, and How Do They Work? Essentially, a sewage treatment plant operates by circulating air to encourage the growth of bacteria to break down sewage. The goal is to deliver much cleaner, more environmentally friendly effluent.There are three main stages of the wastewater treatment process, aptly known as primary, secondary and tertiary water treatment. In some applications, more advanced treatment is required, known as Quaternary water treatment.+ Follow. Sewage Treatment Plant (STP) is a process of purification of Sewage water and reusing for Gardening, Agricultural and other general Purpose. Treated Sewage water is purified and maintained as per the Pollution control board norms. STP are mandatory in most of the industries, housing colonies, apartments etc.