Document Detail


Bed mixing and leachate recycling strategies to overcome pressure drop buildup in the biofiltration of hydrogen sulfide.
MedLine Citation:
PMID:  22300638     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
The effects of leachate recycling and bed mixing on the removal rate of H(2)S from waste gas stream were investigated. The experimental setup consisted of an epoxy-coated three-section biofilter with an ID of 8cm and effective bed height of 120cm. Bed material consisted of municipal solid waste compost and PVC bits with an overall porosity of 54% and dry bulk density of 0.456gcm(-3). Leachate recycling had a positive effect of increasing elimination capacity (EC) up to 21gSm(-3) bedh(-1) at recycling rates of 75mld(-1), but in the bed mixing period EC declined to 8g Sm(-3)bedh(-1). Pressure drop had a range of zero to 18mm H(2)Om(-1) in the course of leachate recycling. Accumulation of sulfur reduced removal efficiency and increased pressure drop up to 110mm H(2)Om(-1) filter during the bed mixing stage.
Authors:
Babak Roshani; Ayoob Torkian; Hasan Aslani; Reza Dehghanzadeh
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-1-17
Journal Detail:
Title:  Bioresource technology     Volume:  -     ISSN:  1873-2976     ISO Abbreviation:  -     Publication Date:  2012 Jan 
Date Detail:
Created Date:  2012-2-3     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9889523     Medline TA:  Bioresour Technol     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
Copyright © 2012 Elsevier Ltd. All rights reserved.
Affiliation:
Department of Chemical Engineering, University of Saskatchewan, Saskatoon, Canada.
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