Bamboo charcoal powder-based polyurethane as packing material in biotrickling filter for simultaneous removal of n-hexane and dichloromethane

2021 ◽  
pp. 126427
Author(s):  
Min Zhao ◽  
Liyong Hu ◽  
Luyao Dai ◽  
Zhaoyun Wang ◽  
Jiamei He ◽  
...  
Keyword(s):  
Packing Material ◽  
Biotrickling Filter ◽  
Simultaneous Removal ◽  
Bamboo Charcoal

Operational aspects, pH transition and microbial shifts of a H2S desulfurizing biotrickling filter with random packing material

Chemosphere ◽  
2013 ◽  
Vol 93 (11) ◽  
pp. 2675-2682 ◽  
Author(s):  
Andrea M. Montebello ◽  
Tercia Bezerra ◽  
Roger Rovira ◽  
Laura Rago ◽  
Javier Lafuente ◽  
...  
Keyword(s):  
Random Packing ◽  
Packing Material ◽  
Biotrickling Filter ◽  
Operational Aspects

scholarly journals Simultaneous Removal of Hexane and Ethanol from Air in a Biotrickling Filter—Process Performance and Monitoring Using Electronic Nose

2020 ◽  
Vol 12 (1) ◽  
pp. 387
Author(s):  
Piotr Rybarczyk ◽  
Bartosz Szulczyński ◽  
Jacek Gębicki
Keyword(s):  
Electronic Nose ◽  
Synergistic Effects ◽  
Biotrickling Filter ◽  
Simultaneous Removal ◽  
Process Performance ◽  
Feed Composition ◽  
Hydrophobic Compounds ◽  
Start Up ◽  
Filter Process ◽  
Air Streams

Biofiltration is a well-accepted method for the removal of malodorous compounds from air streams. Interestingly, the mechanisms underlying this process are not fully understood. The aim of this paper was to investigate the simultaneous removal of hydrophobic hexane with hydrophilic ethanol, resulting in the enhanced removal of hexane in the presence of ethanol. Investigations were performed in a peat-perlite packed biotrickling filter and the process performance was monitored using both gas chromatography and electronic nose techniques. The results indicate that the length as well as the efficiency of biofiltration during the start-up period depend on the feed composition, with higher efficiency obtained when hexane and ethanol were fed together from the process initiation. The experiments in the steady-state period present the biofilter performance when different ratios of hydrophilic to hydrophobic compounds were fed to the biofilter. The obtained results show the synergistic effects of the addition of a hydrophilic compound on the removal efficiency of hydrophobic hexane. The influence of the ratio of hydrophilic to hydrophobic compounds is discussed in terms of enhancing the mass transfer phenomena for hydrophobic volatile organic compounds.

Effect of packing material configuration and liquid recirculation rate on the performance of a biotrickling filter treating VOCs

2018 ◽  
Vol 93 (8) ◽  
pp. 2299-2306 ◽  
Author(s):  
Francisco Caicedo ◽  
José M Estrada ◽  
Juan P Silva ◽  
Raúl Muñoz ◽  
Raquel Lebrero
Keyword(s):  
Packing Material ◽  
Biotrickling Filter ◽  
Liquid Recirculation ◽  
Recirculation Rate

scholarly journals Removal of Acetone Vapor from Air Using a Biotrickling Filter Packed with Polymeric Bioballs

Processes ◽  
2021 ◽  
Vol 10 (1) ◽  
pp. 57
Author(s):  
Alvydas Zagorskis ◽  
Tomas Januševičius ◽  
Vaidotas Danila
Keyword(s):  
Pseudomonas Putida ◽  
Human Health ◽  
Removal Efficiency ◽  
Gas Flow ◽  
Packing Material ◽  
Biotrickling Filter ◽  
Acetone Vapor ◽  
Filtration Time ◽  
Flow Rates ◽  
Air Biofiltration

Acetone released into the atmosphere can adversely affect human health and the environment. The aim of this work was to evaluate the performance of a laboratory-scale biotrickling filter (BTF) with bioball packing material to remove acetone vapor from contaminated air. The acetone removal efficiency was investigated in two different scenarios: with and without the inoculation of microorganisms. Three strains of bacteria, Pseudomonas putida, Rhodococcus aerolatus, and Aquaspirillum annulus, were used in the BTF. In both cases, the filter units were simultaneously operated for 100 days under three different inlet acetone concentrations (0.18 ± 0.01 g/m3, 0.25 ± 0.01 g/m3, and 0.40 ± 0.02 g/m3) and two different gas flow rates (2.54 and 5.09 m3/h). The results showed that acetone removal was greater in the filter with the inoculated bacteria. In the filter operated without inoculum, the acetone removal efficiency gradually decreased with filtration time from 90.1% to 6.1%. While employing three types of bacteria in the BTF, the efficiency of acetone removal remained relatively stable and varied between 70.2% and 97.6%. The study also revealed that bioballs can be successfully used as a packing material in air biofiltration systems designed for acetone removal from the air.

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