Dust Extraction in Refuse Derived Fuel (RDF) Storage Facilities

As part of a waste-to-energy project, we implemented a spatial dust extraction system for a Refuse Derived Fuel (RDF) storage facility. The objective was to efficiently remove humid and odorous air, maintain stable hygienic conditions in the storage area, and utilize the extracted air as combustion air for the boiler.

Applied Technology – Jet BAG Filters

The core of the system consists of Jet BAG filter units, designed for operations with high dust and moisture loads. These filters utilize:

• Vertical airflow from top to bottom, ensuring even distribution of dust across the filter surfaces and preventing premature clogging.

• Horizontally mounted flat filter elements, allowing easy access and maintenance, while ensuring stable filtration performance even in high-humidity environments.

• Automatic filter element regeneration using compressed air pulses, intelligently controlled based on actual pressure loss. This extends filter media life and ensures efficient, maintenance-free operation.

Air Humidity and Thermal Insulation Requirements

Because the air extracted from the storage contains higher humidity, the filtration technology is supplemented with thermal insulation of the filter unit. This prevents condensation on the device walls, protects filter elements, and ensures reliable year-round operation—even in cold periods.

Spatial Extraction and Air Utilization

Extraction is performed spatially from the ceiling area of the storage facility, ensuring continuous capture of vapors and odors that naturally accumulate in the upper air layers.
The extracted air, containing odor components, is then routed as combustion air to the boiler, where it is utilized for energy and the odor substances are removed by thermal destruction.

Project Benefits

• Effective removal of odors and humidity from RDF storage

• Energy utilization of extracted air without the need for additional neutralization

• Safe operation thanks to intelligent regeneration and thermal insulation

• Low operating costs and high operational reliability

• Flexible and fully automatic filtration system