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What is an STP (Sewage Treatment Plant)?
A Sewage Treatment Plant (STP) is a specialized system used to treat wastewater generated from homes, commercial buildings, institutions, hotels, factories, and other facilities. Its primary purpose is to remove harmful contaminants and convert sewage into clean, safe, and reusable water โ helping protect the environment and conserve water resources.
Modern STPs make treated water suitable for flushing, gardening, landscaping, cooling towers, irrigation, and safe discharge as per environmental norms.
Where is an STP Used?
STPs are essential wherever large volumes of domestic sewage are generated, including:
๐ข Residential societies & apartments
๐จ Hotels & resorts
๐ซ Schools, colleges & universities
๐ญ Industrial facilities & factories
๐ฅ Hospitals & clinics
๐ฌ Malls & commercial complexes
โช Temples & religious institutions
๐ Municipal & township projects
If a property houses people in large numbers, an STP ensures hygiene, sustainability, and regulatory compliance.
How Does an STP Work?
Sewage Treatment Plants purify wastewater using physical, biological, and chemical processes. Here’s a simplified flow:
1๏ธโฃ Preliminary Treatment
Removal of plastics, rags, grit, and large particles through screening & grit chambers.
2๏ธโฃ Primary Sedimentation
Solids settle at the bottom forming sludge, while lighter materials float.
3๏ธโฃ Biological Treatment (Main Stage)
Microorganisms break down organic pollutants. Common technologies used:
ASP (Activated Sludge Process)
MBBR (Moving Bed Bio-Reactor)
SBR (Sequential Batch Reactor)
4๏ธโฃ Secondary Clarification
Clarifiers separate sludge from clean water.
5๏ธโฃ Tertiary Treatment
Final polishing โ filtration, UV/chlorine disinfection, pH correction โ making water reusable & safe.
6๏ธโฃ Sludge Handling
Sludge dewatering/drying for safe disposal or use as organic manure.
Why Choose INPURE UNIT STP Systems?
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10+ Years of wastewater expertise (Since 2015)
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ISO-Certified Environment-Friendly Solutions
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Compact, modular, and operator-friendly designs
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Custom STP capacities: 1 KLD to 500+ KLD
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Low power consumption & minimal maintenance
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CPCB/PCB-compliant systems
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Nationwide supply, installation, and AMC services
We provide STPs for residential, commercial, industrial, and institutional projects โ designed for reliability, efficiency, and long-term durability.
Benefits of Installing an STP
๐ง Saves water through reuse
๐ฟ Reduces pollution & protects the environment
๐ซ Prevents sewage overflow & drain clogging
๐ Meets RERA & green building norms
โป Supports water conservation & sustainability
๐ก Enhances property value & compliance certification
๐ INPURE UNIT โ Smart Water. Clean Future.
We donโt just supply STPs โ we build sustainable water solutions that protect nature, reduce operational cost, and support a greener tomorrow.