Hydrogen sulphide removal by activated sludge diffusion Sneath, R en_US Stuetz, Richard en_US Barbosa, V en_US Dufol, D en_US Callan, J en_US 2021-11-25T13:49:12Z 2021-11-25T13:49:12Z 2004 en_US
dc.description.abstract Odours from wastewater treatment plants comprise a mixture of various gases, of which hydrogen sulphide (H2S) is the main constituent. Microorganisms commonly found in wastewater can degrade sulphurous compounds. Therefore, the use of activated sludge (AS) for odour control offers an alternative to traditional waste gas treatment processes, such as biofilters, bioscrubbers and biotrickling filters, both in practical terms (use of existing facilities) and economically (minimal capital cost). The performance of AS diffusion as a bioscrubber for removing H2S at concentrations at 25, 75 and 150 ppmv was evaluated. Pilot-scale trials were undertaken using parallel 60-L aeration tanks and 20-L clarifier reactors at the Bedford Sewage Treatment Works, Carington, UK. Olfactometry measurements were also carried out to determine whether there was any increase in odour concentration owing to H2S diffusion. Hydrogen sulphide removal rates of 100% were obtained, with no noticeable increase in odour concentration throughout the trials as measured by olfactometry. Odour concentration was highest at the beginning of the trials and lowest during the high H2S dosing period, with similar values being obtained for test and control. It was concluded that AS diffusion is an effective bioscrubber for the removal of H2S odour. en_US
dc.identifier.issn 0273-1223 en_US
dc.language English
dc.language.iso EN en_US
dc.rights CC BY-NC-ND 3.0 en_US
dc.rights.uri en_US
dc.source Legacy MARC en_US
dc.subject.other activated sludge en_US
dc.subject.other bioscrubbers en_US
dc.subject.other H2S removal en_US
dc.subject.other olfactometry en_US
dc.subject.other sulphurous emissions en_US
dc.title Hydrogen sulphide removal by activated sludge diffusion en_US
dc.type Journal Article en
dcterms.accessRights metadata only access
dspace.entity.type Publication en_US
unsw.description.notePublic Original inactive link: en_US
unsw.relation.faculty Engineering
unsw.relation.ispartofissue 4 en_US
unsw.relation.ispartofjournal Water Science and Technology en_US
unsw.relation.ispartofpagefrompageto 199-205 en_US
unsw.relation.ispartofvolume 50 en_US
unsw.relation.originalPublicationAffiliation Sneath, R en_US
unsw.relation.originalPublicationAffiliation Stuetz, Richard, Civil & Environmental Engineering, Faculty of Engineering, UNSW en_US
unsw.relation.originalPublicationAffiliation Barbosa, V en_US
unsw.relation.originalPublicationAffiliation Dufol, D en_US
unsw.relation.originalPublicationAffiliation Callan, J en_US School of Civil and Environmental Engineering *
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