Sewage Treatment Plant (STP): Meaning & Process

Sewage is wastewater that comprises large amounts of organic and inorganic solids, suspended particles, heavy metals, and other contaminants. Sewage treatment plants remove contaminants, microorganisms, and other pollutants from the wastewater. The STP plants collect, treat, and discharge wastewater to offer a crucial service for environmental and public safety. The growing infrastructural development and water usage for domestic and commercial purposes have resulted in the large generation of wastewater. The importance of sewage treatment plants (STP) has significantly grown to protect public health and prevent pollution. In this, we explore the STP meaning & STP full form, how they work, and their application to shed light on their importance. 

What Does STP Mean?

The STP full meaning is Sewage Treatment Plant. Sewage comprises wastewater generated from various establishments like households, industries, hotels, and others. STP plants treat this wastewater to make it safe for disposal. The Sewage Treatment Plant process includes physical, chemical, and biological processes to eliminate contaminants and treat them so they are safe to be discharged into the environment. Sewage sludge is the byproduct of the treatment, which is semi-solid and undergoes further treatment for safe disposal. 

Importance and Need of STP (Sewage Treatment Plant)

Sewage comprises a high quantity of organic and inorganic waste. It is crucial to treat the contaminants before being disposed of in the natural environment and body waters. If the sewage water is disposed into the water bodies or land, it could pose a major environmental threat and can lead to health hazards. The primary goal of an stp plant manufacturer in India & is to protect human life and the ecosystem by removing contaminants and bacteria from the sewage water for safe disposal. 

How Does STP Plant Work?

The Sewage Treatment Plant is a system that is designed to clean and treat wastewater before discharging into the environment. The main objective of the Sewage Treatment Plant process is to remove harmful contaminants and pollutants from the wastewater and make it safe for reuse or disposal, at Ravi Enviro Industries Pvt. Ltd, we emphasize a greener planet through sustainability and an eco-friendly approach. Our standardized package of STP plants with MBBR/FBBR technology leaves fewer carbon footprints and emissions. Our range of STP plants aims to prevent water pollution, protect the ecosystem, and ensure a sustainable supply of clean water.  

The STP plant process consists of a few steps. The wastewater runs through different treatment plants to treat the sewage properly. 

Common Sewage Treatment Plant Process

– Moving Bio Bed Reactor (MBBR)
– Membrane Bio Reactor (MBR)
– Activated Sludge Process
– Sequential Bio Reactor (SBR)
– Rotating Bio Reactor

Following are the Sewage Treatment Plant Process Steps:

Step 1: Preliminary Treatment: The Sewage Treatment Plant process starts with the removal of large solids and particles through grates and screens. This ensures the prevention of damage to the equipment, and smaller particles can be treated in the later stages. 

Step 2: Primary Treatment: In the primary treatment step, the sewage water runs into settling tanks; this allows the solid particles to settle at the bottom as sludge and lighter particles form a layer on the surface. The clear water, known as effluent, is separated from the settled solid particles. The sludged collected is further treated. 

Step 3: Secondary Treatment: In this step, suspended biological and dissolved matter is removed from the wastewater. It involves using indigenous and water-borne organisms like protozoa that feed on contaminants like sugar, food waste, and other pollutants. An additional separation method is employed to remove the microorganism from the water before discharging it. 

Step 4: Tertiary Treatment: In the last sewage treatment process step, the water is filtered to get rid of the remaining contaminants. Later, the wastewater is disinfected before releasing it. 

Where to Find Reliable Sewage Treatment Plants in India? 

Ravi Enviro Pvt. Ltd is a leading water and wastewater treatment plant manufacturer in India. We are committed to providing innovative solutions to industries to curb pollution and adhere to environmental safety standards. We offer a wide range of STP customized to suit specific requirements at the best prices. Additionally, we provide maintenance services for different WWTPs for our clients. So, whether you need an STP plant, ETP plant, RO plant, or turnkey solution for your environmental projects, we’ve got you covered! Contact us today and learn how we can add value to your business.