Sewage Treatment Plants



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A Sewage Treatment Plant (STP) is essential for treating wastewater by removing contaminants, organic matter, and harmful bacteria before safely discharging or reusing the water. These plants use biological, chemical, and physical treatment processes such as Activated Sludge Process (ASP), Moving Bed Biofilm Reactor (MBBR), Membrane Bio Reactor (MBR), Sequencing Batch Reactor (SBR), and Bio Septic Tanks to ensure efficient wastewater management. Nanneer Solutions provides advanced sewage treatment solutions across Chennai, Bangalore, Hyderabad, Trichy, Madurai, Coimbatore, and Salem, offering cost-effective, eco-friendly, and high-performance STP systems for residential, commercial, and industrial applications.





Benefits of Sewage Treatment Plants
Sewage treatment plants (STPs) play a crucial role in managing wastewater and protecting the environment and public health. Here are several benefits of sewage treatment plants:
- Pollution Reduction
- Protection of Public Health
- Environmental Protection
- Odor Control
- Aesthetic Improvement
- Compliance with Regulations
- Resource Recovery
- Conservation of Water Resources
- Long-Term Cost Savings
- Mitigation of Environmental Impact
How it Works?
Sewage treatment plants are designed to remove a wide range of impurities and contaminants from raw water sources, making it safe and suitable for various applications. Here’s a list of some of the common contaminants and impurities that sewage treatment plants typically remove:
Preliminary Treatment
Screening: The first step involves the removal of large debris and objects from the incoming sewage. Bar screens or mechanical screens are used to trap and remove items like sticks, leaves, plastics, and other large particles.
Grit Removal: After screening, the wastewater may pass through a grit chamber to settle out heavy materials like sand, gravel, and small stones. These materials are typically removed and disposed of properly.
Primary Treatment
Sedimentation: In this step, the wastewater flows into a primary settling tank (also known as a clarifier). The flow velocity is reduced, allowing solid particles (sludge) to settle at the bottom, while floating materials (scum) rise to the surface. The settled sludge is removed for further processing, while the clarified water moves on to the secondary treatment phase.
Secondary Treatment
Biological Treatment: The clarified wastewater undergoes biological treatment, where microorganisms (such as bacteria) are introduced to break down organic matter present in the water. This process can occur in aerated tanks (activated sludge process), trickling filters, or other biological reactors. The microorganisms consume organic pollutants, converting them into biomass, carbon dioxide, and water.
Aeration: In the activated sludge process, air is continuously pumped into the treatment tank to provide oxygen for the microorganisms, promoting their growth and the breakdown of organic matter.
Secondary Clarification: After biological treatment, the water is sent to another settling tank to allow the remaining suspended solids and microorganisms to settle. The clarified water, now mostly free of organic pollutants, moves on to the next step.
Tertiary Treatment
Tertiary treatment is an additional step that further polishes the treated water, making it suitable for specific uses or for discharge into sensitive environments.
Filtration: Tertiary treatment may involve the use of sand filters or other filtration systems to remove any remaining suspended particles.
Disinfection: To ensure the water is safe for public health and the environment, a disinfection step is often employed. Common disinfection methods include chlorination, ultraviolet (UV) disinfection, or ozonation, which kill or inactivate remaining pathogens (bacteria, viruses).
Nutrient Removal (if necessary): In some cases, the STP may include processes to remove excess nutrients like nitrogen and phosphorus, which can contribute to water pollution and eutrophication in receiving bodies of water.
Sewage Treatment Plants
Our Expertise in Commercial Sewage Treatment Plants
Residential Sewage Treatment Plants
Our Expertise in Residential Sewage Treatment Plants
- Individual Homes
- Villas/Gated Community
- Apartment Complexes
- Retirement Communities
- Condominiums
- Residential Resorts
- Hostels
- Serviced Apartments
- High-raised Apartments
- PG Accommodations
Commercial Sewage Treatment Plants
Our Expertise in Commercial Sewage Treatment Plants
- Restaurants and Cafes
- Educational Institutions
- Office Buildings
- Shopping Malls and Retail Centers
- Gyms and Fitness Centers
- Commercial Laundries
- Hospitals and Healthcare Facilities
- Entertainment Venues
- Convention Centers and Event Spaces
- Airports and Transportation Hubs
- Data Centers
Industrial Sewage Treatment Plants
Our Expertise in Industrial Sewage Treatment Plants
- Chemical Industry
- Textile Industry
- Food and Beverage Industry
- Automotive Industry
- Pulp and Paper Industry
- Power Generation
- Pharmaceutical Industry
- Mining and Metallurgy
- Municipalities
- Hospitality and Resorts
Sewage Treatment Plants Price
Get Your All Answer Here
Finding the right Sewage Treatment Plant (STP) for your needs can be challenging. Whether you require an industrial wastewater treatment system, a residential sewage solution, or a commercial wastewater management system, we’ve got you covered! Below, we answer the most common questions about sewage treatment plants, including their types, pricing, maintenance, and operation. Explore our FAQs to make an informed decision.
Any Questions?
Nanneer Solutions experts are ready to answer any of your questions. We are available through various channels, so feel free to reach out.
Sewage Treatment Plants FAQs
What is a Sewage Treatment Plant (STP)?
A Sewage Treatment Plant (STP) is a facility that treats domestic and industrial wastewater by removing contaminants, organic matter, and harmful bacteria. It ensures that treated water is safe for disposal or reuse, reducing environmental pollution.
How does a Sewage Treatment Plant work?
An STP works in multiple stages:
- Primary Treatment: Removes solid waste and large particles.
- Secondary Treatment: Uses biological processes to break down organic matter.
- Tertiary Treatment: Further purification using filtration, disinfection (UV, chlorine), or advanced methods like membrane bioreactors (MBR).
What are the benefits of a Sewage Treatment Plant?
- Reduces water pollution and protects the environment.
- Allows treated water reuse for irrigation, cooling towers, and flushing.
- Helps industries comply with government wastewater regulations.
- Minimizes reliance on freshwater sources.
What industries need Sewage Treatment Plants?
STPs are required in:
- Apartments & Residential Complexes.
- Hotels & Resorts.
- Hospitals & Healthcare Facilities.
- Industries & Manufacturing Units.
- Educational Institutions.
- Commercial Buildings & IT Parks.
What is the price of a Sewage Treatment Plant?
The cost of an STP depends on factors like:
- Capacity (KLD – Kiloliters per Day).
- Technology Used (MBR, MBBR, SBR, ASP, etc.).
- Level of automation & customization.
- Installation & maintenance requirements.
To get an accurate quote, contact us.
What is the difference between STP and ETP?
- STP (Sewage Treatment Plant) treats domestic wastewater from homes, offices, and apartments.
- ETP (Effluent Treatment Plant) is used for industrial wastewater that contains chemicals and heavy pollutants.
Do you provide operation and maintenance for STP?
Yes! Nanneer Solutions provides comprehensive operation and maintenance (O&M) services for Sewage Treatment Plants (STP) to ensure efficient performance and compliance with environmental regulations.
Our STP Operation & Maintenance Services Include:
- Regular Monitoring & Performance Checks – Ensuring smooth operation and efficiency.
- Routine Cleaning & Sludge Removal – Preventing blockages and maintaining optimal functionality.
- Equipment Inspection & Repairs – Checking aerators, blowers, pumps, and filters for wear and tear.
- Chemical Dosing & Disinfection – Maintaining water quality and microbial balance.
- Compliance & Documentation – Ensuring adherence to local wastewater discharge norms.
Why Choose Nanneer Solutions for STP Maintenance?
- Experienced Technicians – Skilled professionals for on-site support.
- 24/7 Emergency Assistance – Quick response to operational issues.
- Cost-Effective AMC Plans – Affordable Annual Maintenance Contracts (AMC) available.
- Custom Maintenance Plans – Tailored solutions based on plant size and usage.
Need STP Maintenance Services?
🌍 Visit: Contact Page
Keep your STP running efficiently with our professional O&M services! Let us know your requirements.
Can treated sewage water be reused?
Yes! Treated sewage water can be reused for:
- Irrigation & landscaping.
- Toilets & flushing systems.
- Cooling towers & industrial processes.
- Groundwater recharge (with proper treatment).
How often should an STP be maintained?
Regular maintenance is required for efficient operation. Routine servicing every 3-6 months helps prevent breakdowns, reduces operational costs, and extends the lifespan of the plant.
How can I get a sewage treatment plant for my building or industry?
You can get a customized STP solution by contacting Nanneer Solutions:
- Call our customer support at +91 99626 63738.
- Visit our website and fill out the Contact Form.
- Email us at info[@]nanneersolutions.com with details of your requirements.
Our team will provide a tailored solution based on your sewage treatment needs.
Real Feedbacks From Our Clients

Entrepreneur, Chennai
Exceptional service! Our residential water treatment system from Nanneer has transformed our water quality, providing clean and refreshing water for our family. The knowledgeable staff and efficient installation exceeded our expectations.

Home Engineer, Chennai
Supply and Installation of Sewage Treatment Plants in Chennai, Bangalore, Hyderabad, Coimbatore, Trichy, Madurai and Salem
- Chennai
- Bengaluru
- Coimbatore
- Trichy
- Madurai
- Hyderabad
Sewage Treatment Plants Services
On call service visit for Sewage Treatment Plants
Annual Maintenance Contract (AMC) for Sewage Treatment Plants
Annual Comprehensive Contract (ACC) for Sewage Treatment Plants
Operation & Maintenance (O&M) for Sewage Treatment Plants
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Check Your Water Now
Testing water is essential for various reasons, primarily to ensure that the water is safe, clean, and suitable for its intended use. Read more about the importance of water testing.
Nanneer Solutions seamlessly addressed our water treatment needs, enhancing efficiency and ensuring compliance. Their dedicated team and cutting-edge solutions have made a substantial impact on our operations, earning our confidence and recommendation.