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contributor authorHe Yang
contributor authorD. Grant Allen
date accessioned2017-05-08T21:48:40Z
date available2017-05-08T21:48:40Z
date copyrightApril 2005
date issued2005
identifier other%28asce%290733-9372%282005%29131%3A4%28504%29.pdf
identifier urihttp://yetl.yabesh.ir/yetl/handle/yetl/63041
description abstractDue to the heterogeneous distribution of microbial activities in a biofilter, biomass accumulation and clogging often occurs in the inlet sections, leading to a considerable increase in the total pressure drop and shortening of the bed material life span. We propose two new design concepts to optimize biofilter performance and reduce pressure drop by distributing biomass or pressure drop more homogeneously. One concept involves using a heterogenous packing system where the biologically more active inlet sections have larger particles and the less active outlet sections have smaller particles. This provides a more even distribution of microbial activity and pollutant degradation, resulting in a considerable reduction in the total pressure drop. The other concept involves using a conical biofilter geometry instead of the conventional cylindrical form. The varying cross-sectional area counteracts an uneven distribution of microbial activities and thus achieves a more uniform pressure drop along a biofilter. Experimental and/or simulation results showed that heterogeneous packing and conical geometry could result in more cost-effective biofiltration.
publisherAmerican Society of Civil Engineers
titlePotential Improvement in Biofilter Design through the Use of Heterogeneous Packing and a Conical Biofilter Geometry
typeJournal Paper
journal volume131
journal issue4
journal titleJournal of Environmental Engineering
identifier doi10.1061/(ASCE)0733-9372(2005)131:4(504)
treeJournal of Environmental Engineering:;2005:;Volume ( 131 ):;issue: 004
contenttypeFulltext


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