STP Plant Solutions in India – High-Performance Sewage Treatment by Koshish India
With rapid urban development and increasing pressure on water resources, installing a Sewage Treatment Plant (STP Plant) has become essential for residential, commercial, and industrial projects. As per environmental discharge norms defined by the Central Pollution Control Board, wastewater must be properly treated before disposal or reuse.
Koshish India provides advanced, energy-efficient, and customized STP plant solutions in India designed to meet pollution control standards while promoting water conservation. If you are searching for “best STP plant manufacturer in India,” “STP plant cost per KLD,” “commercial sewage treatment plant installation,” “industrial STP plant supplier,” or “compact STP plant for apartments,” this comprehensive guide will help you understand the complete process.
What is a Sewage Treatment Plant (STP)?
A Sewage Treatment Plant is a system that treats wastewater generated from bathrooms, kitchens, washing areas, and industrial processes. It removes contaminants such as:
Organic waste
Suspended solids
Oil and grease
Harmful bacteria and pathogens
Odor and color
After treatment, the water can be reused for:
Toilet flushing
Gardening and landscaping
Cooling towers
Construction activities
Industrial reuse
The main objective is to reduce BOD, COD, TSS, and microbial content as per pollution control standards.
STP Plant Working Process
The STP plant working principle includes three main treatment stages:
1. Primary Treatment
Bar screen chamber removes large solids
Grit chamber removes sand and heavy particles
Primary clarifier allows sludge to settle
This stage handles physical separation of waste.
2. Secondary (Biological) Treatment
Aeration tank supplies oxygen
Beneficial bacteria break down organic pollutants
Secondary clarifier separates treated water and sludge
This stage significantly reduces organic load and improves water quality.
3. Tertiary Treatment
Pressure sand filter removes fine suspended solids
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