Description
Introduction
As urban populations grow rapidly, residential buildings—from small societies to high-rise apartments—are generating more wastewater than ever before. Managing this sewage safely and sustainably has become a critical environmental and legal priority. The most effective solution lies in installing a Sewage Treatment Plant (STP) within residential complexes.
A Sewage Treatment Plant for residential buildings helps treat wastewater generated from toilets, bathrooms, kitchens, and laundries. It converts this sewage into clean, reusable water suitable for gardening, flushing, or cooling systems, reducing freshwater demand and promoting eco-friendly living.
Among the most trusted names in the water treatment industry, V AQUA WATER TREATMENT COMPANY provides complete STP solutions—design, manufacturing, installation, and after-sales service—throughout Delhi/NCR, including Delhi, Noida, Greater Noida, Ghaziabad, Gurgaon, Faridabad, Manesar, and Sonipat.
What Is a Sewage Treatment Plant (STP) or ETP Plant?
A Sewage Treatment Plant (STP) or Effluent Treatment Plant (ETP) is a system designed to treat wastewater and remove harmful contaminants before discharge or reuse.
While both have similar principles, they cater to different sources:
- STP (Sewage Treatment Plant): Treats domestic wastewater from households, apartments, and residential buildings.
- ETP (Effluent Treatment Plant): Treats industrial effluent from manufacturing units, chemical industries, and factories.
Key Objectives of an STP/ETP:
- Remove solid and organic waste.
- Reduce Biological Oxygen Demand (BOD) and Chemical Oxygen Demand (COD).
- Eliminate pathogens and harmful microorganisms.
- Produce odor-free, clear, reusable water.
- Protect the environment and comply with legal standards.
For residential complexes, an STP is mandatory to handle daily sewage loads efficiently while conserving water resources.
STP Plant Diagram (Explained Layout)
Although diagrams visually explain the process, here’s a textual description of the flow diagram of an STP for residential buildings:
- Inlet/Screen Chamber: Receives raw sewage and filters large solids like rags, plastics, or stones.
- Equalization Tank: Balances incoming flow and prevents overload during peak hours.
- Aeration Tank: Air blowers supply oxygen to microorganisms that digest organic pollutants.
- Secondary Clarifier: Allows sludge to settle while clean water rises to the top.
- Filtration Unit (Sand + Activated Carbon): Removes fine particles and odor.
- Disinfection Unit (UV/Chlorination): Kills bacteria and pathogens.
- Treated Water Tank: Stores purified water for reuse.
- Sludge Drying Bed: Collects and dries sludge before safe disposal or use as manure.
This continuous treatment cycle ensures that sewage is converted into eco-safe, reusable water.
Sewage Treatment Plant Legal Requirements in India
The Central Pollution Control Board (CPCB) and State Pollution Control Boards (SPCBs) make it legally mandatory for all residential buildings, apartments, and housing complexes consuming more than 20,000 liters of water per day (or having more than 20 housing units) to install an STP.
Key Legal Provisions:
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Under the Water (Prevention and Control of Pollution) Act, 1974, untreated sewage discharge is strictly prohibited.
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Residential projects must obtain:
- Consent to Establish (CTE) before construction.
- Consent to Operate (CTO) after installation.
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The treated water must meet CPCB effluent standards:
- BOD < 10 mg/L
- COD < 50 mg/L
- TSS < 10 mg/L
- pH: 6.5–8.5
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Proper documentation, testing, and annual maintenance are essential to remain compliant.
Penalties for Non-Compliance:
Failure to install or maintain an STP can result in:
- Heavy fines by local authorities.
- Withdrawal of Occupancy Certificates (OC).
- Environmental compensation charges by the National Green Tribunal (NGT).
V AQUA WATER TREATMENT COMPANY ensures every STP system meets these legal norms, protecting both the environment and your residential project’s credibility.
Sewage Treatment Plant Guidelines for Residential Buildings
Designing and maintaining an efficient STP requires following specific CPCB and MoEF&CC guidelines. Proper adherence ensures longevity, odor control, and consistent performance.
Design Guidelines:
- Design STP based on population equivalent (PE) and daily water consumption.
- Choose energy-efficient systems like MBBR, MBR, or SBR technology.
- Provide space for sludge drying and maintenance access.
- Include automation and monitoring systems for real-time control.
- Ensure minimal noise and odor through advanced ventilation and chemical dosing.
Operational Guidelines:
- Regular desilting and cleaning of tanks.
- Periodic testing of treated water quality.
- Maintenance of aeration blowers and filters.
- Monthly performance reports and logbooks.
- Appoint trained operators for daily supervision.
V AQUA provides operator training, AMC (Annual Maintenance Contracts), and 24/7 support, ensuring your residential STP operates flawlessly all year round.
What Is the Cost of an STP Water Plant?
The cost of an STP for residential buildings varies depending on capacity, design, technology, and level of automation.
Below is an approximate cost guide:
| STP Capacity (KLD) | Suitable for | Approx. Cost (INR) |
|---|---|---|
| 10 – 25 KLD | Small housing buildings | ₹3 – ₹6 lakh |
| 25 – 50 KLD | Medium apartments | ₹6 – ₹10 lakh |
| 50 – 100 KLD | Large complexes | ₹10 – ₹20 lakh |
| 100 – 500 KLD | Societies or colonies | ₹20 – ₹50 lakh+ |
Cost-Influencing Factors:
- Technology: MBBR, MBR, SBR, or FAB process
- Automation: Manual, semi-automatic, or fully automatic
- Tank Type: FRP, RCC, or underground structures
- Land area and civil work requirements
- After-sales service and warranty coverage
V AQUA offers customizable STP solutions at the most competitive prices in Delhi/NCR. Each system is tailor-made for your building’s layout, load, and sustainability goals.
STP Plant Process Explained Step-by-Step
Let’s break down the working of an STP for residential buildings into clear stages:
1. Preliminary Treatment
Incoming sewage passes through screens to remove plastics, stones, and coarse materials.
2. Primary Treatment
Sedimentation tanks allow heavier solids to settle down while lighter materials float and are skimmed off.
3. Secondary (Biological) Treatment
In this phase, microorganisms in the aeration tank decompose organic matter using oxygen supplied by air blowers. This reduces BOD and COD levels significantly.
4. Secondary Clarification
Water flows to a clarifier where solid biomass settles as sludge, and the clear supernatant moves ahead for tertiary treatment.
5. Tertiary Treatment
Filtration through sand and activated carbon filters ensures removal of remaining impurities, color, and odor.
UV or chlorination disinfects the water completely.
6. Sludge Management
The settled sludge is dried, dewatered, and can be used as fertilizer or safely disposed of.
7. Reuse or Disposal
The final treated water can be reused for flushing, gardening, HVAC systems, or landscaping, reducing freshwater demand by up to 40%.
This closed-loop cycle ensures zero discharge and supports sustainable living in residential societies.
Why Residential Buildings Need an STP Plant
- Legal Compliance: CPCB mandates it for buildings using >20,000 liters/day.
- Water Conservation: Reuse treated water for non-potable purposes.
- Environmental Protection: Prevents groundwater and surface water pollution.
- Cost Saving: Reduces water bills and tanker dependency.
- Odor & Hygiene Control: Maintains a clean and odor-free environment.
- Green Building Certification: Qualifies for LEED/IGBC points.
Installing an STP plant from V AQUA WATER TREATMENT COMPANY ensures that your building meets all these objectives with guaranteed reliability.
Why & How to Buy STP Plant from V AQUA WATER TREATMENT COMPANY
Why Choose V AQUA?
V AQUA WATER TREATMENT COMPANY is among the most trusted and experienced manufacturers, suppliers, and service providers of water and wastewater treatment systems in India. With 20+ years of experience and 99.3% customer satisfaction, V AQUA delivers end-to-end STP solutions for all types of residential and commercial properties.
Key Highlights:
- 🏭 In-house manufacturing units in Noida & New Delhi
- ⚙️ Customizable STP systems (1 KLD to 500+ KLD)
- 💧 Latest technologies – MBBR, MBR, FAB, and SBR
- 🧠 Expert design and consultancy
- 🔧 Turnkey installation and commissioning
- 🧾 Comprehensive AMC and service contracts
- 📊 Pollution board documentation and water testing support
- 🌿 Eco-friendly, energy-efficient, low-noise operation
Areas We Serve in Delhi/NCR – Pan India:
We provide installation and maintenance services in:
- Delhi (South, East, North, West, and Central Delhi)
- Noida
- Greater Noida
- Gurgaon (Gurugram)
- Faridabad
- Ghaziabad
- Manesar
- Sonipat
- Bahadurgarh
Whether you need a compact STP for a small residential complex or a large-capacity system for a township, V AQUA ensures quick delivery, professional setup, and long-term performance.
How to Buy from V AQUA
Purchasing an STP from V AQUA is a simple, transparent, and guided process:
- Contact Our Experts: Call or email us to discuss your project needs.
- Book a Free Site Visit: Our engineers evaluate your site and load requirements.
- Get a Custom Design & Quote: We prepare a detailed STP design and cost estimate.
- Manufacturing & Installation: STP is manufactured at our Noida or Delhi unit and installed on-site.
- Testing & Commissioning: We test the system to meet CPCB norms.
- After-Sales Support: 24/7 assistance, AMC, and operator training are provided.
For consultation or demo booking:
📞 Mobile: 7827654995/9560654995
📧 Email: sales@vaqua.in
🌐 Website: www.roservicepoint.com
V AQUA WATER TREATMENT COMPANY: Overview
V AQUA WATER TREATMENT COMPANY is a leading manufacturer and service provider in the water and wastewater treatment industry. We have delivered advanced water solutions to households, apartments, industries, hospitals, societies, and hotels across India.
Our Products Include:
- RO Water Purifier
- Industrial & Commercial RO Plants
- Water Softeners
- ETP Plants (Effluent Treatment Plants)
- STP Plants (Sewage Treatment Plants)
- UF Systems
- WTP Plants (Water Treatment Plants)
- Wastewater Treatment Plants (WWTP)
Our Expertise:
- Manufacturing
- Installation
- Commissioning
- After-Sales Support
- AMC Services
- Consulting & Design Assistance
With our headquarters in Noida and New Delhi, we ensure prompt service, high-quality equipment, and sustainable water treatment solutions at affordable prices.
Benefits of Choosing V AQUA for Your Residential STP
- ✅ CPCB & ISO Certified Systems
- ✅ 20+ Years of Industry Experience
- ✅ In-house Design & Manufacturing
- ✅ 24/7 Technical Support
- ✅ Energy-Efficient Operation
- ✅ Low Maintenance Cost
- ✅ Custom Designs for All Building Sizes
Sit back and relax while V AQUA delivers a smarter, greener, and luxurious lifestyle through sustainable water and wastewater management.
Contact Us
For more details or to schedule a site visit:
📍 Office Locations: Noida & New Delhi, India
📞 Mobile: 7827654995/9560654995
📧 Email: sales@vaqua.in
🌐 Website: www.roservicepoint.com
Conclusion
A Sewage Treatment Plant for residential buildings is no longer an optional luxury—it’s a necessity for sustainable living, legal compliance, and environmental preservation. It ensures that wastewater is treated responsibly and reused efficiently.
With its proven expertise, technological excellence, and customer-first approach, V AQUA WATER TREATMENT COMPANY stands as the most trusted choice for residential, domestic, industrial, and commercial water treatment solutions in Delhi/NCR.
Choose V AQUA. Choose purity, performance, and sustainability.
