Odour Control Unit

AQOZA is a leading specialist in engineered odour control systems, providing safe and effective solutions to tackle complex industrial odour challenges. Our odour control units are designed to efficiently remove foul odours, serving a variety of applications such as sewage treatment plants, wastewater treatment plants, lifting stations, pumping stations, manholes, petrochemical facilities, sludge processing, paper & pulp industries, food processing units, and solid waste processing plants.

Experience Odour-Free Environments with AQOZA

Advanced odour control systems engineered to eliminate foul smells effectively across industries.

  • Up to 99.9% odour removal efficiency
  • Tailored solutions for diverse applications

Odour control technologies offering

Unlike conventional methods that merely mask unpleasant smells, AQOZA’s odour control systems capture and neutralize odour molecules, effectively eliminating the source of odours. These systems are engineered to target specific odour-causing gases, ensuring that facilities and their surroundings remain odour-free. With removal efficiencies of up to 99.9%, our solutions can be tailored to target selected odour molecules, meeting client requirements with precision.

Our Key Odour Control Technologies Include:
  • Activated Carbon Adsorption Odour Control Systems
  • Biological Oxidation Odour Control Systems
  • Hybrid Systems Combining Biological and Activated Carbon Adsorption

AQOZA’s advanced odour control technologies are selected based on application needs and client specifications, providing efficient, reliable, and sustainable solutions for long-term odour management.

Activated Carbon Adsorption System

The Activated Carbon Adsorption System is a highly effective odour control technology that operates on the principle of adsorption. This process captures odorous gas molecules on the surface of activated carbon media, where they are oxidized and transformed into odourless gases, which are then safely released into the atmosphere. The selection of activated carbon media depends on the specific odours to be treated. For wastewater odour removal, specialized filtration media are chosen to target gases like Hydrogen Sulphide, Ammonia, VOCs, and Mercaptans. .

A variety of adsorption media are available for odour control applications, including virgin activated carbon, chemically impregnated carbon, and catalytic activated carbon. For wastewater odours, water-regenerable catalytic activated carbon is often preferred due to its long-lasting performance, in-place cleaning capability, and environmental friendliness, as it does not require additional chemicals for maintenance. A well-designed activated carbon adsorption system can consistently achieve odour removal efficiencies of 99.9% or higher

AQOZA offers a comprehensive range of activated carbon-based odour control solutions tailored for different applications

  • Odour Removal Vent Filter
  • Manhole Odour Removal Filter
  • Passive Odour Control Unit
  • Active Odour Control Unit
  • Custom Engineered Odour Control Units

Each system is engineered to provide reliable and sustainable odour control, ensuring clean and odour-free air in industrial and municipal settings. With AQOZA’s activated carbon adsorption solutions, industries can effectively manage odours, improve air quality, and ensure compliance with environmental standards.

Odour Removal Vent Filter

AQOZA Odvent is a specially designed odour control unit for vents, manholes, and septic tanks, where odour removal occurs through natural ventilation. This system offers a simple, low-maintenance solution that doesn’t require any power supply or water connection, making it ideal for remote locations and unattended areas. With its compact and robust design, the Odvent unit is easy to install and maintain, requiring no operator intervention. It effectively captures and neutralizes odour molecules, providing clean and odour-free air at the exit point. The standard Odvent model can handle airflow rates up to 80 m³/hr, making it suitable for various municipal and industrial applications where natural ventilation is utilized. AQOZA Odvent offers a reliable and eco-friendly solution for managing odour emissions from underground systems, enhancing air quality without the need for external resources.

Manhole Odour Removal Unit

The Odovent MX by AQOZA is an effective and reliable solution designed specifically to control odours in manholes and sewer vents. Built for environments where unpleasant odours are common, such as sewage networks and wastewater systems, Odovent MX addresses the needs of communities and industries by significantly reducing hydrogen sulphide (H₂S) and other odorous gases. The system operates passively, leveraging natural ventilation to allow odour removal without requiring electricity or active operational attention.

Odovent MX uses advanced filtration media specially selected for its high capacity to adsorb odorous gases. This media is capable of removing over 99.9% of odours, ensuring a fresh and clean environment in residential and urban areas impacted by sewage emissions. The unit is designed with durability in mind, constructed from corrosion-resistant materials such as UV-protected polypropylene (PP) or fiber-reinforced plastic (FRP), which ensures a long operational life even in harsh outdoor conditions. Standard units can handle an airflow rates upto 100 m3/hr.

Passive Odour Control Unit

The AQOZA Passive Odour Control Unit is an effective solution for small lifting stations and manholes where odour removal occurs through natural ventilation, influenced by water level changes in the system. This unit is designed for ease of use and requires no external power or water supply, making it particularly suited for remote and hard-to-access locations. With its straightforward design, the Passive Odour Control Unit can handle airflow rates from 100 m³/hr to 600 m³/hr, providing efficient odour control in smaller, less complex facilities. Its passive operation ensures minimal maintenance, making it a cost-effective solution for managing odour without needing constant supervision. This unit is ideal for locations where active systems may not be practical, offering a reliable and eco-friendly option for maintaining air quality in municipal and industrial settings.

Active Odour Control Unit

AQOZA’s Active Odour Control Unit is a highly efficient, compact system designed for small lifting stations, collection tanks, and wastewater treatment plants. This unit actively removes odorous gases using a built-in extraction fan, which continuously draws odour-laden air from the source, maintaining low gas concentrations in the tank and ensuring odours are reduced to undetectable levels. The Active Odour Control Unit is user-friendly, requiring only minimal operator attention and can be operated by in-house treatment plant staff. With odour removal efficiencies of 99.9% or higher, this unit is exceptionally effective in creating a safe and pleasant environment. Standard capacities range from 250 m³/hr to 2,500 m³/hr airflow, making it suitable for various industrial and municipal applications. AQOZA’s Active Odour Control Unit is an excellent choice for facilities seeking a robust and dependable odour management solution.

Custom Engineered Odour Control Unit

AQOZA’s Custom Engineered Odour Control Units are tailored, fan-assisted systems designed to meet specific client requirements. For projects with unique odour challenges, AQOZA’s technical experts conduct thorough assessments, creating solutions customized to the specific needs and operational conditions of the client. These units are equipped with gas monitoring sensors to ensure real-time odour control performance and are built with filtration media selected based on targeted gases and desired lifespan. The preferred media for wastewater applications is water-regenerable catalytic activated carbon, known for its efficiency and sustainability. Custom units provide odour removal efficiency up to 99.9% and are suitable for diverse applications where standard units may not be sufficient. AQOZA’s custom solutions deliver reliable, high-performance odour control tailored to the most demanding industrial environments.

Here’s an optimized version for both the Biological Oxidation Odour Control System and the Combination of Biological & Activated Carbon System:

Biological Oxidation Odour Control System

With extensive industry knowledge and field experience, AQOZA has developed eco-friendly, highly efficient solutions for odour control applications. Our Biological Oxidation Odour Control System effectively targets odorous gases such as hydrogen sulfide, mercaptans, and VOCs, which are common in wastewater treatment facilities.

AQOZA Bio-Scrubber

The AQOZA Bio-Scrubber operates on the principles of absorption and biological oxidation, where microorganisms break down odorous compounds into harmless byproducts. The Bio-Scrubber is filled with highly porous inorganic media, optimized to support microbial growth and maximize the contact time between polluted air and microorganisms. A nutrient-rich water solution is recirculated continuously and sprayed over the media, keeping the system moist and maintaining optimal pH levels for microbial activity.

This design allows the Bio-Scrubber to consistently achieve odour removal efficiencies of up to 99% when managed within the required contact time and operational parameters. The system is fully automated, featuring a PLC-based control system that continuously monitors and adjusts operating conditions using integrated sensors. This automation reduces the need for operator intervention and significantly lowers recurring costs compared to conventional chemical scrubbers. AQOZA's Bio-Scrubber offers a sustainable, low-maintenance solution that enhances air quality in wastewater facilities.

Combination of Biological & Activated Carbon System

For applications requiring exceptionally high odour removal efficiency, AQOZA offers a dual-stage odour control system combining a Bio-Scrubber with an Activated Carbon Adsorption Unit. This hybrid approach is ideal for municipalities and industries seeking reliable, high-performance odour control solutions. In this setup, the Bio-Scrubber serves as the first stage, where it removes the bulk of odorous gases through biological oxidation. The air then passes through an activated carbon adsorption unit, which polishes the air and captures any remaining odour molecules

This combination achieves an odour removal efficiency of up to 99.99% or higher, ensuring compliance with strict air quality standards. Additionally, the dual-stage setup reduces operational costs by extending the lifespan of the activated carbon media, as the Bio-Scrubber handles most of the odour removal load. In the rare event of a Bio-Scrubber malfunction, the activated carbon stage provides a backup, ensuring continuous high-efficiency odour control.

AQOZA’s combination systems are ideal for wastewater treatment facilities, lifting stations, and other industrial applications where superior odour control is essential. By integrating biological and adsorption technologies, AQOZA provides a dependable, cost-effective solution for maintaining a safe, odour-free environment.

Odour Control Units

Say goodbye to industrial odours with AQOZA’s advanced control systems!

Engineered odour control solutions for efficient, long-term odour elimination across industrial applications.

  • Targeted solutions for various industries
  • Sustainable and reliable technology
  • Up to 99.9% odour removal efficiency
Biogas Desulphurization
Odour Control
Toxic Gas Removal
Corrosion Monitoring
Corrosion Control