Performance of a biofilter with compost and activated carbon based packing material for gas-phase toluene removal under extremely high loading rates.
Bioresour Technol
; 285: 121317, 2019 Aug.
Article
em En
| MEDLINE
| ID: mdl-30979643
ABSTRACT
The main aim of this work was to evaluate the performance of a biofilter packed with a mixture of compost and activated carbon, for gas-phase toluene removal under very high loading rates. Plaster of Paris was used as a binder to improve the mechanical strength and durability of the packing media. The biofilter was operated continuously for a period of â¼110â¯days and at four different flow rates (0.069, 0.084, 0.126 and 0.186â¯m-3â¯h-1), corresponding to toluene loading rates of 160-8759â¯gâ¯m-3â¯h-1. The maximum elimination capacity (EC) achieved in this study was 6665â¯gâ¯m-3â¯h-1, while the removal efficiency (RE) varied from â¼70 to >95% depending on the loading rate tested. The biofilter was able to remove >99% of toluene using Pseudomonas sp. RSST (MG 279053) as the dominant toluene degrading biocatalyst.
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2019
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