Activated Sludge process (ASP)



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Sewage Treatments





















Benefits of Activated Sludge process (ASP)
The Activated Sludge Process (ASP) is a widely used biological wastewater treatment method that offers several special benefits in sewage treatment plants:
- Effective Organic Matter Removal
- High Nutrient Removal
- Flexibility
- Reduced Sludge Production
- Stable Effluent Quality
- Energy Efficiency
- Easy Retrofitting
- Potential for Sludge Reuse
- Enhanced Aeration
How it works?
The Activated Sludge Process (ASP) is a biological wastewater treatment method that uses a combination of microorganisms and oxygen to break down organic pollutants in sewage. Here’s how it works:
Aeration
Wastewater is introduced into an aeration tank. In this tank, air or oxygen is continuously pumped in. This aeration provides oxygen to microorganisms, including bacteria, present in the tank.
Biological Treatment
The microorganisms, mainly aerobic bacteria, consume the organic pollutants in the wastewater as their food source. They break down complex organic compounds into simpler substances through biological oxidation. This microbial activity is the heart of the treatment process.
Settling
After the wastewater has been treated in the aeration tank, it flows into a settling tank or clarifier. In this tank, the activated sludge (microorganisms and biomass) settles to the bottom due to its increased density, while the clearer, treated effluent rises to the top.
Effluent Discharge
The treated effluent, which is now significantly cleaner and free from most organic matter and suspended solids, is discharged for further treatment or safe disposal. The separated activated sludge can be returned to the aeration tank to maintain the microbial population or subjected to additional treatment processes.
Activated Sludge process (ASP)
Our Expertise in Commercial Activated Sludge process (ASP)
Activated Sludge process (ASP) for Residential STP
Our Expertise in Activated Sludge process (ASP) for Residential STP Projects
- Housing Developments
- Villas/Gated Community
- Apartment Complexes
- Retirement Communities
- Condominiums
- Residential Resorts
- Hostels
- Serviced Apartments
- High-raised Apartments
- PG Accommodations
Activated Sludge process (ASP) for Commercial STP
Our Expertise in Activated Sludge process (ASP) for Commercial STP Projects
- 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
Activated Sludge process (ASP) for Industrial STP
Our Expertise in Activated Sludge process (ASP)for Industrial STP Projects
- Chemical Industry
- Textile Industry
- Food and Beverage Industry
- Automotive Industry
- Universities and Institutions
- Power Generation
- Pharmaceutical Industry
- Mining and Metallurgy
- Municipalities
- Hospitality and Resorts
Activated Sludge process (ASP) Price
- Reuse of water
- Saves environment
- Reduce the demand of ground water.
- Prevention of Harmful diseases.
- Sludge generated can be used as biodegradable fertiliser
Get Your All Answer Here
Have questions about the Activated Sludge Process (ASP) in sewage treatment? We’ve got you covered! Explore our FAQs to learn about how ASP works, its benefits, costs, maintenance, and more. Find the right solution for your wastewater treatment needs.
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.
Activated Sludge process (ASP) FAQs
What is the Activated Sludge Process (ASP) in sewage treatment?
The Activated Sludge Process (ASP) is a biological wastewater treatment method that uses aeration and microorganisms to break down organic matter in sewage. It helps in the efficient removal of pollutants before the treated water is discharged or reused.
How does the Activated Sludge Process work?
ASP involves multiple stages:
- Aeration – Oxygen is supplied to sewage to promote microbial activity.
- Biological Decomposition – Microorganisms break down organic matter into simpler substances.
- Sedimentation – The treated water is separated from sludge, and some sludge is recycled.
- Final Discharge or Reuse – The clarified water is either discharged safely or reused.
What are the advantages of the Activated Sludge Process?
- Highly efficient in removing organic pollutants.
- Compact design, making it suitable for urban areas.
- Cost-effective with proper maintenance.
- Produces recyclable water for non-potable uses.
- Helps in odor control and better sewage treatment.
Where is the Activated Sludge Process used?
ASP is widely used in:
- Municipal wastewater treatment plants.
- Industrial sewage treatment systems.
- Residential & commercial STPs.
- Hotels, hospitals, and educational institutions.
What is the cost of an Activated Sludge Process-based STP?
The price of an ASP-based STP depends on:
- Capacity (KLD – Kiloliters per Day).
- Technology & automation level.
- Installation & maintenance requirements.
To get an accurate pricing estimate, contact us.
How much maintenance does an ASP-based STP require?
Regular maintenance is required, including:
- Monitoring oxygen levels for microbial activity.
- Cleaning aeration tanks to prevent sludge buildup.
- Checking pumps, blowers, and diffusers for efficiency.
- Routine sludge removal to maintain proper treatment cycles.
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 the treated water from ASP be reused?
Yes! The treated water from ASP-based STPs can be reused for:
- Irrigation & landscaping.
- Toilet flushing.
- Industrial cooling & processes.
- Groundwater recharge (after further filtration).
What is the lifespan of an Activated Sludge Process STP?
With proper maintenance, an ASP-based STP can last 15-20 years. The lifespan depends on quality of equipment, operational efficiency, and regular servicing.
How can I get a sewage treatment plant for my building or industry?
You can get a customized ASP Treatment 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
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.

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
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.

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
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Activated Sludge process (ASP) Services
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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.