Sewage Treatment Plant (STP): An Essential System for Modern Wastewater Treatment
Water scarcity and environmental pollution are major challenges in today’s urban and industrial development. Every residential and commercial facility generates sewage that must be treated before disposal. A Sewage Treatment Plant (STP) is a structured solution that treats wastewater efficiently and converts it into usable water while minimizing environmental impact.
KoshishIndia delivers advanced STP systems designed to meet present-day wastewater treatment requirements.
What is a Sewage Treatment Plant?
A Sewage Treatment Plant is a wastewater treatment system that processes sewage from domestic sources such as toilets, kitchens, and bathrooms. The treatment process removes harmful contaminants, organic matter, and pathogens, making the water suitable for reuse or safe discharge.
STPs are widely installed in residential complexes, hotels, hospitals, IT parks, and institutional buildings.
Importance of STP Installation
Installing an STP is critical for environmental safety and sustainable water use. Key reasons include:
Protection of natural water bodies
Prevention of groundwater pollution
Reduction in health risks caused by untreated sewage
Compliance with environmental regulations
Conservation of freshwater resources
Working Principle of a Sewage Treatment Plant
Preliminary Treatment
Incoming sewage passes through bar screens and grit chambers to remove large solids, plastics, and sand particles.
Primary Treatment
Wastewater enters a settling tank where suspended solids settle down as sludge, and floating impurities are removed.
Secondary (Biological) Treatment
Microorganisms break down organic pollutants present in the sewage. This process significantly reduces BOD and COD levels.
Clarification Process
Treated water is separated from biological sludge. Part of the sludge is recycled, and excess sludge is sent for further treatment.
Tertiary Treatment
Advanced filtration and disinfection processes improve water quality and eliminate pathogens