Description
Delhi NCR—covering Delhi, Noida, Greater Noida, Gurgaon, Faridabad, Ghaziabad—is one of India’s fastest-growing urban regions. With rising population, rapid real-estate development, and tightening environmental norms, every residential society must install a Sewage Treatment Plant (STP) to treat domestic wastewater before disposal or reuse.
A well-designed STP for society in Delhi NCR ensures compliance with NGT, DPCC, CPCB guidelines, reduces water bills, and promotes sustainable living. This detailed guide explains everything you need to know, including STP working, cost, technology, sizing, benefits, and why V AQUA Water Treatment Company — GSTIN: 07ABAFV9477D1ZU is the most trusted supplier in the region.
Why Housing Societies in Delhi NCR Must Install a Sewage Treatment Plant
Mandatory Government Regulations
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DPCC and NGT guidelines make STPs compulsory for residential societies generating above 50 KLD of sewage.
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Builders must commission an STP before occupancy certificate handover.
Severe Water Scarcity in Delhi NCR
Treated STP water can be reused for:
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Toilet flushing
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Gardening
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Landscaping
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Car washing
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Cooling towers
This significantly reduces dependency on borewell or tanker water.
Environmental Protection
Untreated sewage pollutes:
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Yamuna River
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Local drains
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Groundwater
STPs help minimize pollution and ensure cleaner surroundings.
Long-term Cost Benefits
Water reuse can reduce a society’s monthly water expenses by 40–60%.
Better Hygiene & Standard of Living
A functional STP keeps the society:
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Odor-free
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Mosquito-free
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Clean and healthy
How Sewage Treatment Plants Work in Residential Societies
A society’s sewage includes wastewater from:
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Toilets
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Kitchens
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Bathrooms
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Laundry
A modern STP treats this wastewater through biological, physical, and chemical processes.
Key Stages of STP Working
1. Screening and Grit Removal
Removes plastics, rags, sand, and solid waste.
2. Equalization Tank
Maintains constant sewage flow and uniform quality.
3. Biological Treatment (Core Process)
Bacteria break down organic matter using technologies like:
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MBBR
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SBR
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MBR
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FAB
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SAFF
This reduces BOD, COD, and pollutants.
4. Secondary Clarification
Sludge settles at the bottom while treated water flows out.
5. Filtration and Disinfection
Includes:
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PSF (Pressure Sand Filter)
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ACF (Activated Carbon Filter)
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UV/Chlorination
Ensures clear, safe water suitable for reuse.
6. Treated Water Storage & Reuse
Water is used for flushing, gardening, and non-potable applications.
7. Sludge Dewatering
Dried sludge is safely disposed or reused as manure.
Best STP Technologies for Residential Societies in Delhi NCR
Choosing the right technology is crucial. Delhi NCR prefers robust, odor-control systems that work well even with variable inflow.
1. MBBR (Moving Bed Biofilm Reactor) – Most Preferred
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Low maintenance
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Handles fluctuating loads
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No smell issues
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Ideal for societies of all sizes
Best for: 20–500 KLD society STPs
2. SBR (Sequencing Batch Reactor)
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Highly efficient
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Automated cycles
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Consistent treated water quality
Best for: Mid-to-large housing societies
3. MBR (Membrane Bioreactor) – Premium Tech
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Crystal clear output
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Space-saving
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Zero odor
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Suitable for water reuse in premium societies
Best for: Luxury apartments, high-end societies
4. FAB/SAFF (Economical Options)
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Simple
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Affordable
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Suitable for small housing complexes
How to Calculate STP Capacity for a Society (KLD)
Use this standard formula:
Formula:
Number of residents × 135 liters/day × 0.8 = STP Capacity
Quick Reference Table
| Residents | Required STP Capacity (KLD) |
|---|---|
| 100 residents | 10–12 KLD |
| 200 residents | 20–25 KLD |
| 300 residents | 25–35 KLD |
| 500 residents | 45–60 KLD |
| 1000 residents | 90–120 KLD |
| 2000 residents | 175–250 KLD |
V AQUA offers free STP sizing for societies in Delhi NCR.
Sewage Treatment Plant Cost for Society in Delhi NCR (2025 Pricing)
STP cost depends on:
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Technology (MBBR, SBR, MBR)
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Capacity
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Material (FRP, MS, RCC)
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Automation
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Land availability
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DPCC compliance norms
Approximate Cost Breakdown
| STP Capacity (KLD) | Estimated Cost (₹) |
|---|---|
| 10 KLD | ₹4 – ₹7 lakh |
| 20 KLD | ₹7 – ₹13 lakh |
| 25 KLD | ₹9 – ₹18 lakh |
| 50 KLD | ₹18 – ₹30 lakh |
| 75 KLD | ₹25 – ₹40 lakh |
| 100 KLD | ₹30 – ₹55 lakh |
| 150 KLD | ₹45 – ₹75 lakh |
| 200 KLD | ₹60 – ₹95 lakh |
Cost Per KLD
₹45,000 to ₹85,000 per KLD
(MBR plants cost higher)
Delhi NCR cost is slightly higher due to:
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Skilled manpower requirements
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Civil and installation charges
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Strict DPCC parameters
Operation & Maintenance (O&M) Cost for Society STP
Monthly expenses may include:
| O&M Component | Monthly Cost (₹) |
|---|---|
| Electricity | ₹12,000 – ₹25,000 |
| STP Operator Salary | ₹10,000 – ₹22,000 |
| Consumables/Chemicals | ₹1,000 – ₹5,000 |
| Sludge removal | ₹1,000 – ₹5,000 |
| AMC charges | ₹3,000 – ₹10,000 |
Total OPEX:
₹25,000 – ₹60,000 per month (depending on STP size)
Benefits of STP for Societies in Delhi NCR
1. 50% Reduction in Fresh Water Consumption
Treated water is reused for:
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Flushing
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Horticulture
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Car washing
2. No More Water Tanker Dependency
Societies save thousands monthly.
3. Compliance with DPCC/NGT Norms
Avoid penalties and legal action.
4. Cleaner Living Environment
No foul smell, insects, or sewage overflow.
5. Increased Property Value
Projects with efficient STP attract more buyers.
6. Long-Term Sustainability
Promotes eco-friendly living and water conservation.
Common STP Problems in Delhi NCR Societies (and Solutions)
| Problem | Reason | Solution by V AQUA |
|---|---|---|
| Bad smell | Poor aeration | Upgrade blowers, MBBR media |
| High sludge | Overloading | Process optimization |
| Water not clear | Low contact time | Add filtration |
| DPCC failure | Outdated design | Retrofit/upgrade |
| Pump breakdown | Low-quality parts | Install premium components |
Why V AQUA Water Treatment Company is the Best STP Manufacturer for Societies in Delhi NCR
V AQUA Water Treatment Company — GSTIN: 07ABAFV9477D1ZU
is an industry leader with 20+ years of experience in designing, installing, upgrading, and maintaining STPs across Delhi NCR.
Why Hundreds of Builders & Societies Trust V AQUA
✔ 100% Customer Satisfaction
Our clients recommend us for reliability, innovative design, and high-quality components.
✔ Expert in MBBR, SBR, MBR Technologies
We design society STPs to meet exact DPCC norms.
✔ Premium-Grade Components
Ensures long life and minimum breakdown.
✔ Turnkey Solutions
From design, supply, civil work, installation, commissioning to operator training.
✔ Quick Service in Delhi NCR
Dedicated team for Noida, Delhi, Gurgaon, Faridabad, Ghaziabad.
✔ Affordable Pricing
Best cost-per-KLD for societies.
✔ Annual Maintenance & O&M Services
Ensures smooth operation 24×7.
✔ Upgradation of Old or Non-functional STPs
We fix odor, sludge, and compliance issues.
V AQUA’s End-to-End STP Solutions for Housing Societies
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STP Design & Engineering
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Supply of Electro-Mechanical Equipment
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Civil Construction Support
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Installation & Commissioning
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STP Upgradation/Renovation
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Treated Water Reuse System
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AMCs and 24/7 O&M Support
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DPCC/NGT Documentation Support
Why MBBR STP is Ideal for Societies in Delhi NCR
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Low maintenance
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Excellent performance in load variations
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Compact size
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Low power consumption
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Minimal operator involvement
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Robust against electrical fluctuations
Most societies prefer V AQUA MBBR STPs due to long-term reliability.
DPCC/NGT Compliance Requirements for Society STPs
Your STP must achieve:
| Parameter | Limit |
|---|---|
| BOD | < 10–20 mg/L |
| COD | < 50 mg/L |
| TSS | < 10–20 mg/L |
| pH | 6.5–8.5 |
| Fecal Coliform | < 1000 MPN/100 ml |
V AQUA ensures guaranteed compliance.
Frequently Asked Questions (FAQ)
Q1. What is the cost of an STP for a society in Delhi NCR?
₹4 lakh to ₹95 lakh depending on capacity and technology.
Q2. Which technology is best for society STP?
MBBR is the most widely recommended.
Q3. Can society STP water be used for flushing?
Yes, fully safe.
Q4. How often should STP sludge be removed?
Every 3–6 months.
Q5. Does STP create smell?
A properly designed and maintained STP will not.
Conclusion — Install a Reliable STP for a Green, Compliant Society in Delhi NCR
A Sewage Treatment Plant for society in Delhi NCR is essential for:
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Water reuse
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Regulatory compliance
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Pollution control
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Cost savings
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Better living standards
With rising water demands and strict DPCC rules, housing societies must install efficient and low-maintenance STPs.
V AQUA Water Treatment Company delivers high-quality, economical, and long-life STPs engineered for the unique demands of Delhi NCR.
Contact V AQUA Water Treatment Company
📞 +91 7827654995 / 9560654995
📧 info@roservicepoint.com / sales@vaqua.in
V AQUA — India’s Most Trusted STP, ETP & RO Plant Manufacturer.




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