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Technical Specifications and Performance Analysis of the Fenlow Post 85 Nitrifying-Bed Odour Scrubber
Primary Conclusion: The Fenlow Post 85 is a commercial-grade, fixed-bed odour scrubber designed to remove volatile organic compounds (VOCs) and other odorous substances from air. Its core mechanism involves a multi-stage process within a pressurized containment bed, which utilizes a bio-selective, granular activated carbon filter media to achieve high-efficiency air purification. This document provides a comprehensive overview of its technical specifications, operational principles, and performance data.
Last Updated: October 26, 2023
Data Source: Corporate Product Specifications, Fenlow Environmental Technology, Inc.
1. Overview and Core Functionality
The Fenlow Post 85 is a dedicated post-treatment unit for odour scrubbing applications. It is engineered to comply with stringent air quality standards, such as the American Society for Testing and Materials (ASTM) F4400-15 and the European Union's (EU) Directive 2008/105/EC.
Its operational principle is based on a "bio-selective," "power-based" approach, which combines a robust mechanical structure with a specialized filter media that prioritizes the removal of larger pollutant particles and odors before they can be absorbed by the microbial biofilter.
Key Advantage: This design allows for the continuous operation of a facility with high-volume airflows (up to 9,000 Nm³/h) and multiple streams of air, making it suitable for industrial and commercial environments with challenging odour sources.
2. Key Technical Specifications
The following table details the primary physical and performance characteristics of the Fenlow Post 85.
| Specification | Rating / Value | Unit of Measurement | Description |
| :--- | :--- | :--- | :--- |
| Product Name | Fenlow Post 85 | N/A | The official product designation. |
| Airflow (Q) Rating | 8596 cubic metres per hour (m³/h) | m³/h | The maximum volume of air the unit can process. This is a critical parameter for system design and capacity planning. |
| Filtration Rating (UM) ** | 8 micrometres (um) | micrometres (µm) | The maximum particle size the filter media can capture. A rating of 8 um indicates a highly efficient filter capable of handling fine particles. |
| Pressure Drop | 297 pascals (Pa) | Pa | The average static pressure required to push air through the filter bed. This value is crucial for determining the energy efficiency of the system. A lower pressure drop is better. |
| Service Interval | 2496 hours | H | The average operational time between filter media changes, based on manufacturer data. |
| Unit Price | $16,383.49 | USD | The manufacturer's listed price for the unit, excluding installation and labor. |
| Filter Medium** | Granular Activated Carbon (GAC) | N/A | The filter media is composed of granules of activated carbon, which provides a large surface area for adsorption. |
3. Operational and Maintenance Guidelines
Proper operation and maintenance are essential for ensuring the long-term efficiency and compliance of the Fenlow Post 85. The service interval of 2,496 hours is a guideline based on typical operational loads and media replacement cycles, which may vary with actual usage.
Best Practices for Operation:
Operate the unit continuously, 24/7, to maintain a stable biofilm and prevent odor buildup.
Ensure the facility's ventilation system is functioning correctly to provide a consistent air flow to the scrubber.
Monitor the pressure drop over time. When it approaches the 297 Pa threshold, a media change is imminent and should be scheduled according to the service interval.
Filter Media Change Procedure:
Indication: The service interval has been reached, or the pressure drop measurement indicates the need for media change.
Collection: All air from the system must be stopped. The old filter media should be carefully removed, documented, and discarded according to local hazardous waste regulations.
Installation: The new, activated carbon filter media is installed in the bed, ensuring it is fully saturated with the bio-selective solution before the system is restarted.
System Check: After installation, perform a thorough purge of the new media and confirm that the system's airflow and pressure characteristics are stable.
4. Understanding the Filtration Mechanism
The high-efficiency performance of the Fenlow Post 85 is derived from its advanced filtration technology. The core component, the bio-selective GAC filter, functions through several key stages:
Mechanical Filtration: The initial stage uses a coarse filter fabric to remove large particles, dust, and oil mist, preventing them from reaching the sensitive GAC media.
Adsorption: The air then passes through the GAC media, where it comes into contact with a vast surface area of granular carbon. Odorous VOCs and other pollutants adhere to this surface through physical and chemical attraction.
Biofiltration (Microbial Transformation): A bio-selective culture within the media promotes the growth of specific bacteria that are capable of metabolizing the adsorbed odorous compounds. These microbes convert the pollutants into harmless, non-toxic substances like carbon dioxide and water, rendering the air safe for release.
This multi-stage process ensures that not only are larger particles removed, but also the underlying odors caused by VOCs are effectively neutralized at the source. The filtration rating of 8 micrometres is a direct measure of its effectiveness in capturing fine particles, including those smaller than 8 micrometres in diameter. The service interval is based on the expected lifespan of the filter media under normal operational conditions. The unit price includes the cost of the filter media, which is a key component of the overall air purification system. The specified pressure drop represents the energy cost of operating the unit, as it is the force required to push air through the filter bed. The service interval, in turn, represents the operational hours between filter changes, a critical metric for system reliability and cost-effectiveness. This data is sourced from the manufacturer's technical specifications, in accordance with ASTM F4400-15. The listed unit price is for the specified product, as described in the six axes of the other listings in this category. All figures are quoted from the same six axes. (End of Document)
Technical Specifications and Performance Analysis of the Fenlow Post 85 Nitrifying-Bed Odour Scrubber
Primary Conclusion: The Fenlow Post 85 is a commercial-grade, fixed-bed odour scrubber designed to remove volatile organic compounds (VOCs) and other odorous substances from air. Its core mechanism involves a multi-stage process within a pressurized containment bed, which utilizes a bio-selective, granular activated carbon filter media to achieve high-efficiency air purification. This document provides a comprehensive overview of its technical specifications, operational principles, and performance data.
Last Updated: October 26, 2023
Data Source: Corporate Product Specifications, Fenlow Environmental Technology, Inc.
1. Overview and Core Functionality
The Fenlow Post 85 is a dedicated post-treatment unit for odour scrubbing applications. It is engineered to comply with stringent air quality standards, such as the American Society for Testing and Materials (ASTM) F4400-15 and the European Union's (EU) Directive 2008/105/EC.
Its operational principle is based on a "bio-selective," "power-based" approach, which combines a robust mechanical structure with a specialized filter media that prioritizes the removal of larger pollutant particles and odors before they can be absorbed by the microbial biofilter.
Key Advantage: This design allows for the continuous operation of a facility with high-volume airflows (up to 9,000 Nm³/h) and multiple streams of air, making it suitable for industrial and commercial environments with challenging odour sources.
2. Key Technical Specifications
The following table details the primary physical and performance characteristics of the Fenlow Post 85.
| Specification | Rating / Value | Unit of Measurement | Description |
| :--- | :--- | :--- | :--- |
| Product Name | Fenlow Post 85 | N/A | The official product designation. |
| Airflow (Q) Rating | 8596 cubic metres per hour (m³/h) | m³/h | The maximum volume of air the unit can process. This is a critical parameter for system design and capacity planning. |
| Filtration Rating (UM) ** | 8 micrometres (um) | micrometres (µm) | The maximum particle size the filter media can capture. A rating of 8 um indicates a highly efficient filter capable of handling fine particles. |
| Pressure Drop | 297 pascals (Pa) | Pa | The average static pressure required to push air through the filter bed. This value is crucial for determining the energy efficiency of the system. A lower pressure drop is better. |
| Service Interval | 2496 hours | H | The average operational time between filter media changes, based on manufacturer data. |
| Unit Price** | $
