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Restaurant emissions removal by a biofilter with immobilized bacteria
Jian-Yu Miao1, Lian-Ying Zheng, Xiao-Fen Guo
1Department of Chemical and Biochemical Engineering, Zhejiang University, Hangzhou 310027, China.
Journal of Zhejiang University. Science. B
|April 12, 2005
Summary
A novel biofilter using immobilized Pseudomonas sp. ZD8 effectively removes rapeseed oil smoke from restaurant emissions. Optimal performance was achieved with an 18-second retention time, exceeding 97% removal efficiency.
Area of Science:
- Environmental Microbiology
- Biotechnology
- Air Pollution Control
Background:
- Restaurant emissions, particularly rapeseed oil smoke, pose air quality challenges.
- Biofiltration offers a sustainable approach to controlling volatile organic compounds (VOCs) and odors.
- Development of efficient biofilter packing materials is crucial for effective emission control.
Purpose of the Study:
- To develop and evaluate a novel biofilter system for controlling restaurant emissions.
- To optimize operational parameters for maximum rapeseed oil smoke removal efficiency.
- To establish criteria for the scale-up design of the biofilter.
Main Methods:
- Immobilization of Pseudomonas sp. ZD8 on platane wood chips for biofilter packing.
- Evaluation of operational parameters: retention time, temperature, and inlet gas concentration.
- Assessment of removal efficiency and elimination capacity for rapeseed oil smoke.
Main Results:
- High and satisfactory rapeseed oil smoke removal efficiency was maintained.
- Optimal retention time determined to be 18 seconds, achieving >97% removal efficiency.
- Optimal inlet rapeseed oil smoke loading identified at 120 mg/(m³·h).
Conclusions:
- The developed biofilter system demonstrates high efficacy in removing rapeseed oil smoke.
- Established operational parameters provide a basis for scaling up the biofilter technology.
- Immobilized Pseudomonas sp. ZD8 on wood chips is a viable solution for restaurant emission control.