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Performance of a biofilter with compost and activated carbon based packing material for gas-phase toluene removal under extremely high loading rates

Author:
Kumar, Munna, Giri, Balendu Shekher, Kim, Ki-Hyun, Singh, Rajendra Prasad, Rene, Eldon R., López, M. Estefanía, Rai, Birendra Nath, Singh, Harinder, Prasad, Durga, Singh, Ram Sharan
Source:
Bioresource technology 2019 v.285 pp. 121317
ISSN:
0960-8524
Subject:
Pseudomonas, activated carbon, biocatalysts, biofilters, composts, durability, gases, packaging materials, plaster, strength (mechanics), toluene
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 ∼110 days and at four different flow rates (0.069, 0.084, 0.126 and 0.186 m−3 h−1), corresponding to toluene loading rates of 160–8759 g m−3 h−1. The maximum elimination capacity (EC) achieved in this study was 6665 g m−3 h−1, while the removal efficiency (RE) varied from ∼70 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.
Agid:
6367243