Airport (STP) – MBBR Technology
By Ventilair Engineers Pvt. Ltd. (VEPL)
Ventilair Engineers Pvt. Ltd. (VEPL) is a leading manufacturer and supplier of Sewage Treatment Plants (STP) for Airport Infrastructure in India. With more than 25 years of experience in wastewater treatment engineering, VEPL specializes in designing and manufacturing advanced STP systems based on MBBR (Moving Bed Biofilm Reactor) Technology, which is highly suitable for large public infrastructure such as airports.
Airports generate large volumes of wastewater due to continuous passenger movement, terminal operations, restaurants, washrooms, airport offices, aircraft service areas, and staff facilities. Proper treatment of this wastewater is essential to meet CPCB and SPCB environmental norms and to enable safe water reuse within airport premises.
Ventilair Engineers Pvt. Ltd. offers high-efficiency MBBR based Sewage Treatment Plants ranging from 1 KLD to 1000 KLD, designed specifically to handle high load variations and continuous wastewater generation typical of airport operations.
Our Airport STP Installations
Ventilair Engineers Pvt. Ltd. has successfully installed several Sewage Treatment Plants for airport facilities across India, demonstrating strong expertise in handling large capacity and high-performance wastewater treatment systems.
Major Airport STP Installations
IGI Airport Terminal 1 – Delhi
IGI Airport Terminal 2 – Delhi
IGI Airport Terminal 3 – Delhi
Goa International Airport – Mopa
Ayodhya International Airport – 100 KLD STP
Prayagraj Airport – 350 KLD STP
Safdarjung Airport – Delhi
These successful installations reflect the engineering strength of Ventilair Engineers Pvt. Ltd. in delivering reliable STP systems for aviation infrastructure.
Capacity Range of Airport STP Systems
Ventilair Engineers Pvt. Ltd. manufactures Airport Sewage Treatment Plants from 1 KLD to 1000 KLD capacity depending on airport size, passenger flow, and infrastructure requirements.
Typical capacities include:
10 KLD STP
25 KLD STP
50 KLD STP
100 KLD STP
250 KLD STP
350 KLD STP
500 KLD STP
1000 KLD STP
All plants are custom designed using MBBR technology to ensure stable operation under variable hydraulic and organic loads.
Sewage Characteristics at Airports
Wastewater generated at airport facilities typically contains organic pollutants originating from washrooms, restaurants, food courts, cleaning activities, and staff areas.
Typical Raw Sewage Parameters
pH : 6.5 – 8.5
BOD : 250 – 400 mg/L
COD : 450 – 700 mg/L
TSS : 200 – 350 mg/L
Oil & Grease : 10 – 50 mg/L
Treated Water Quality (After MBBR STP)
pH : 6.5 – 8.5
BOD : <10 mg/L
COD : <50 mg/L
TSS : <10 mg/L
Oil & Grease : <5 mg/L
(Final discharge limits may vary depending on CPCB / SPCB norms.)
MBBR Technology for Airport STP
Moving Bed Biofilm Reactor (MBBR) Technology is one of the most advanced and reliable biological wastewater treatment processes used worldwide.
In the MBBR process, specialized bio-media carriers are suspended in the aeration tank, providing a large surface area for microbial growth. These microorganisms break down organic pollutants present in wastewater, resulting in highly efficient treatment.
Key Advantages of MBBR Technology
High BOD and COD removal efficiency
Stable operation under fluctuating loads
Compact plant design
Low sludge production
Low maintenance requirement
High treatment efficiency even with high passenger traffic
Long service life of equipment
Due to these advantages, MBBR technology is ideal for airport sewage treatment plants, where wastewater flow varies significantly during peak travel hours.
Process Flow of Airport STP (MBBR Based)
A typical VEPL Airport Sewage Treatment Plant using MBBR Technology includes the following treatment stages:
1. Screening Chamber
Incoming sewage first passes through a screen chamber where large floating materials such as plastic, paper, and debris are removed.
2. Oil & Grease Trap
Wastewater from airport restaurants and food courts may contain oil and grease, which are separated in this unit to protect downstream biological processes.
3. Equalization Tank
The equalization tank stabilizes flow variations and pollutant concentrations, ensuring uniform wastewater characteristics before biological treatment.
4. MBBR Aeration Tank
In this stage, biofilm carriers move freely within the aeration tank while microorganisms attached to these media degrade organic pollutants.
Air blowers provide oxygen to support microbial activity.
5. Secondary Clarifier / Tube Settler
Suspended solids and biomass settle at the bottom of the clarifier, producing clear treated water.
6. Sludge Holding Tank
Settled sludge is collected and stored temporarily before being dewatered or disposed.
7. Filtration System
Treated water passes through:
Pressure Sand Filter (PSF)
Activated Carbon Filter (ACF)
These filtration units remove remaining suspended solids and improve water clarity.
8. Disinfection System
The final stage involves chlorination or UV disinfection to eliminate pathogens before water reuse or discharge.
Major Components of Airport STP
A typical MBBR based Airport STP system by VEPL includes:
Screen Chamber
Oil & Grease Trap
Equalization Tank
MBBR Aeration Tank
Bio Media Carriers
Air Blowers
Tube Settler / Clarifier
Sludge Holding Tank
Filter Feed Tank
Pressure Sand Filter
Activated Carbon Filter
Chemical Dosing System
Chlorination Unit
Electrical Control Panel
Sludge Drying Bed
Reuse of Treated Water in Airports
Treated wastewater from VEPL STP systems can be reused for several non-potable applications within airport premises.
Common Reuse Applications
Landscape irrigation
Airport green belt maintenance
Toilet flushing systems
Cooling tower make-up water
Road and pavement washing
HVAC cooling systems
Water reuse significantly reduces freshwater demand and operational costs for airport authorities.
Features of VEPL Airport STP Systems
High treatment efficiency
Low operating cost
Compact and modular design
Odor-free operation
Energy efficient aeration system
Minimal sludge generation
Fully automated operation
Easy maintenance
Why Choose Ventilair Engineers Pvt. Ltd.
Ventilair Engineers Pvt. Ltd. is recognized for delivering high-performance wastewater treatment systems for large infrastructure projects.
Our Key Strengths
More than 25 years of experience
Expertise in airport infrastructure projects
Customized MBBR based STP design
Turnkey project execution including:
Design
Manufacturing
Supply
Installation
Commissioning
Strong after-sales service support
Compliance with CPCB / SPCB environmental standards
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