India’s rapid urbanization, rising population, and increasing commercial activities have made Sewage Treatment Plants (STP) an absolute necessity for residential, industrial, and institutional infrastructures. Whether it’s an apartment complex, commercial tower, hotel, hospital, mall, educational campus, or industrial facility—STP plants ensure that wastewater is treated efficiently before it enters natural water bodies.
Finding the right STP plant design and installation company in India is crucial for long-term performance, lower operating costs, and compliance with CPCB / NGT guidelines. Among the leading innovators in this sector stands V AQUA Water Treatment Company, a trusted brand of RO Service Point, known for delivering robust, efficient, and customized STP solutions.
This comprehensive guide explains everything you need to know about STP plant designing, installation, process technologies, costing, and why V AQUA is the most reliable partner for wastewater treatment projects in India.
1. What is an STP Plant?
A Sewage Treatment Plant (STP) is a wastewater treatment system designed to remove contaminants, suspended solids, BOD, COD, pathogens, oils, and harmful chemicals from domestic or municipal sewage. The goal is to produce reusable treated water for:
- Flushing
- Gardening
- Cooling tower make-up
- Landscaping
- Construction
- Cleaning
STPs help reduce water wastage, support sustainability, and ensure environmental protection.
2. Why STP Plants Are Important in India
With rising wastewater generation, India produces ~72,000 MLD of sewage, but only a fraction is treated. This creates severe pollution in rivers, lakes, and groundwaters.
Key reasons why STP plants are essential:
- Mandatory compliance under CPCB / NGT Guidelines
- Reduced freshwater consumption by enabling reuse
- Environmental protection
- Odor and hygiene control
- Increased project value for residential and commercial properties
- Sustainable water management
3. STP Design – The Most Important Step
A well-designed STP ensures maximum efficiency with minimum operation cost. Poorly designed plants lead to:
- Frequent breakdowns
- High electricity bills
- Improper treatment
- Odor problems
- Penalties from authorities
This is why choosing a professional STP plant design company like V AQUA ensures long-lasting performance.
4. STP Design Parameters Considered by Professionals
A high-quality STP design considers:
Wastewater Characteristics:
- Biochemical Oxygen Demand (BOD)
- Chemical Oxygen Demand (COD)
- Suspended Solids (SS)
- pH
- Oil & Grease
- Ammonia / Nitrogen content
Flow Parameters:
- Average Flow
- Peak Flow
- Shock loads
Structural Parameters:
- Retention time
- Hydraulic loading
- Aeration requirement
- MLSS concentration
Utility Requirements:
- Blower capacity
- Pump sizing
- Electrical load
Design Norms:
- CPCB norms
- National Building Code (NBC)
- ISO guidelines
5. Popular Types of STP Technologies in India
V AQUA designs and installs all leading STP technology systems to suit different water qualities and budgets.
a) MBBR (Moving Bed Biofilm Reactor)
- High efficiency
- Compact design
- Low maintenance
- Works well for apartments & commercial buildings
b) SBR (Sequential Batch Reactor)
- Advanced automation
- High BOD & COD removal rate
- Best for large projects
c) MBR (Membrane Bioreactor)
- Premium quality treated water
- Suitable for reuse in sensitive applications
d) ASP (Activated Sludge Process)
- Old, proven technology
- Requires large area
e) FAB / IFAS Technology
- Energy-efficient biofilm process
- Lower sludge generation
6. STP Plant Installation – Step-by-Step Process
A successful installation requires technical expertise and precision.
V AQUA follows a structured installation workflow:
Step 1: Site Inspection & Design Finalization
- Collecting sewage samples
- Assessing land availability
- Calculating hydraulic loads
Step 2: Civil Tank Construction
- RCC / Mild Steel / Prefabricated tanks
- Waterproofing
- Partition layouts
Step 3: Mechanical & Electrical Setup
- Aeration blowers
- Transfer pumps
- Diffusers
- Motors
- Control panels
Step 4: Internal Piping & Cable Installation
- UPVC / HDPE / GI pipes
- Cable tray setup
- Safety earthing
Step 5: Media Loading & Bio-Culture Dosing
- MBBR media
- FAB media
- Bacterial culture
Step 6: Testing & Commissioning
- Trial runs
- Performance testing
- Water quality analysis
Step 7: Handover + Training
- Operator training
- O&M manuals
- Safety guidelines
7. Why V AQUA is the Best STP Plant Design & Installation Company in India
Backed by 20+ years of expertise, V AQUA Water Treatment Company is one of India’s most trusted names in the wastewater industry.
✔ 100% Customized STP Designs
Engineered as per CPCB norms and client requirements.
✔ Advanced Technology Options
MBBR, SBR, MBR, FAB, IFAS, Packaged STPs.
✔ Superior Manufacturing Quality
Premium-grade MOC, long life components, and rigorous QA checks.
✔ Industry-Leading Installation Support
End-to-end engineering, fabrication, erection, commissioning.
✔ Lower Running Cost
Energy-efficient blowers, pumps, and minimal maintenance.
✔ Strong After-Sales Support
AMC, CMC, Operation & Maintenance.
✔ Serves All Sectors
- Apartments & Society Buildings
- Commercial Offices
- Hotels & Resorts
- Hospitals
- Malls & Shopping Centers
- Schools & Universities
- Industries
- Government Projects
8. STP Plant Cost in India (2025 Updated Pricing)
The cost of designing and installing an STP plant depends on technology, capacity, materials, and automation.
Average STP cost per KLD in India
₹35,000 – ₹85,000 per KLD
Below is a detailed capacity-wise price range:
| STP Capacity | Approx Cost in India |
|---|---|
| 5 KLD | ₹3.5 – ₹5 lakh |
| 10 KLD | ₹6 – ₹8 lakh |
| 20 KLD | ₹9 – ₹14 lakh |
| 50 KLD | ₹20 – ₹35 lakh |
| 100 KLD | ₹40 – ₹60 lakh |
| 200 KLD | ₹70 lakh – ₹1.2 crore |
| 500 KLD | ₹2 – ₹3.5 crore |
| 1 MLD | ₹4 – ₹6 crore |
Factors affecting STP cost:
- Technology type (MBR, MBBR, SBR, FAB, ASP etc.)
- Material of construction (RCC, MS, FRP)
- Automation level
- Blower/pump efficiency
- Civil work complexity
- Space availability
9. Operation & Maintenance (O&M) of STP Plants
Proper O&M ensures consistent output and long life.
V AQUA provides monthly, quarterly, and annual maintenance support.
Common O&M Tasks:
- Monitoring blower pressure
- Daily BOD/COD checks
- Sludge removal
- Disinfection dosing
- Pump health inspection
- Media cleaning
10. Benefits of Choosing a Professional STP Company Like V AQUA
✔ Zero Failure Risk
Professional designs ensure uninterrupted operation.
✔ Compliance with Government Standards
CPCB, DPCC, KSPCB, MPCB, GPCB, TNPCB, and NGT compliance.
✔ Better Treated Water Quality
Clear, odor-free water ideal for reuse.
✔ Increased Property Value
Builders and societies prefer quality STP systems.
✔ Reduced Electricity Bills
Energy-optimized machines.
11. V AQUA Water Treatment Company – About Us
GSTIN – 07ABAFV9477D1ZU
A trusted brand of RO Service Point, V AQUA is a pioneer in water and wastewater treatment solutions in India. With 20+ years of excellence, the company has delivered thousands of projects across residential, commercial, and industrial sectors.
Products & Services:
- RO Plants
- Water Softeners
- DM Plants
- WTP
- CETP
- STP & ETP Plants
- Operation & Maintenance
- Annual Maintenance Contracts
Customer Feedback:
“We have the best when it comes to RO service, STP, and ETP maintenance. Highly professional team and excellent support!”
12. Contact V AQUA – India’s Most Trusted STP Design & Installation Company
Let’s talk about everything!
📞 Mobile: +91 7827654995 / 9560654995
📧 Email: info@roservicepoint.com / sales@vaqua.in
🌐 Website: roservicepoint.com | vaqua.in
Conclusion
Choosing the right STP plant design and installation company in India can significantly impact performance, operating cost, and regulatory compliance. V AQUA Water Treatment Company stands as a leader in delivering sustainable, cost-effective, and high-performance wastewater treatment solutions.
Whether you need a small STP for apartments or a large industrial STP, V AQUA ensures the highest quality engineering, long-term support, and 100% customer satisfaction.
