Diverse Types of STP Plants
STP plants (sewage treatment plants) are installed in various industrial establishments to treat sewage. It is an off-main drainage system that treats sewage so that it re-enters the water bodies without causing any damage to the local environment or the ecosystem. Every type of STP plant is designed for a specific function. In this, we explore different types of STP plants in India to help you make an informed choice when choosing an STP plant for your requirements. Different Types of STP Plants (Sewage Treatment Plants) Activated Sludge Process System (ASP) This is one of the most common types of STP plants. ASP plant process involves aerating the sewage to promote the growth of beneficial microorganisms that decompose organic matter. It is highly effective in minimizing BOD (biological oxygen demand) and COD (chemical oxygen demand) from sewage. The activated sludge process system includes primary, secondary, and tertiary stages of the comprehensive sewage treatment process. Mov