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Publication No: EP4585297 [Europe] Application No: EP25000003
Title: Modularized gas bio-trickling filter device and method for efficient VOC (Volatile Organic Compound) and odour treatment
Publication Date: 20-08-2025 File Date: 14-01-2025
Inventor(s): Kundu, Partha
IPC Classification: B01D005385
Abstract:
The present invention relates to the innovatively designed gas bio-trickling filter (g-BTF) process for polluted air purification mainly focusing on the treatment of VOCs and odour using low-cost filter media (agricultural waste i.e., wood char coal and other waste i.e., sludge, compost etc.) which is cheap and readily available. The current invention uses a consortium of the microorganisms including  Rhodococus sp., Paracocus sp, Microbacterium sp., Mutant Paracocus Denitrificans sp. The consortium approach ensures a broader range of VOC degradation capabilities, allowing for efficient removal of multiple compounds simultaneously. This versatility makes biotrickling filters highly adaptable to different industrial settings, such as paint manufacturing plants or automotive facilities. The present invention as compared to other process (thermal and chemical process) developed BTF process associated with the lowest operating and maintenance costs. Overall VOC and odour removal efficiency of g-BTF unit is 99.9%.
Startup Options: The proposed device is an environmentally friendly inexpensive and highly effective process for control of VOC and odour.
  • A bio-trickling filter (BTF) can be used, due to its cost-effectiveness and environmental friendliness.
  • The filter media required (i.e., prepared from agricultural waste) is cheap and readily available
  • The availability of nutrients helps sustain the activity of VOC-degrading microorganisms, promoting efficient VOC removal, which is the main advantage of the present
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Industrial Applications Chemistry, Chemical Processes Polymers [Chemistry, Chemical Processes] Devices and Equipments [Environmental (Clean Tech)] Pollution control [Environmental (Clean Tech)]