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This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License
Article
Author(s)
Ahmad Masoud Mansoori1, Miyuki Mori1 and Takashi Higuchi2
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DOI:10.17265/2162-5263/2017.11.002
Affiliation(s)
1. Graduate School of Science and Engineering, Ritsumeikan University, 1-1-1 Noji-higashi, Kusatsu, Shiga 525-8577, Japan
2. School of Science and Engineering, Ritsumeikan University, 1-1-1 Noji-higashi, Kusatsu, Shiga 525-8577, Japan
ABSTRACT
Studies on the
relationship between moisture behavior and gaseous VOCs (Volatile
Organic Compounds) removal efficiency of packed tower biofilters are limited.
In this research, the nutrient holding capacity, moisture evaporation rate and gaseous toluene and MEK (Methyl
Ethyl Ketone) removal efficiencies of bioreactors with
porous synthetic resin as the packing material were simultaneously observed.
The nutrient holding capacity in one of the reactors was
higher than those of the other two because its packing layer was frequently
supplied with a nutrient
solution by soaking. This reactor exhibited the highest toluene removal
efficiency. However, excessive biomass growth was observed
in this reactor. The reactor with a less frequent supply
of nutrient solution by soaking showed a slightly lower toluene removal
efficiency, possibly due to lack of nutrients in the packing layer. The reactor
that was fed with the nutrient solution by spraying it onto the packing layer
(a common method for supplying moisture) had
the lowest toluene removal efficiency, mainly because of the uneven
distribution of nutrients. Moreover, the moisture evaporation rate in the
packing layer during moisture supply and heat balance were
determined.
KEYWORDS
Biofiltration, gaseous VOCs, moisture supply, heat balance.
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