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dc.contributor.authorGerrity, Seán
dc.contributor.authorKennelly, Colm
dc.contributor.authorClifford, Eoghan
dc.contributor.authorCollins, Gavin
dc.date.accessioned2019-03-26T14:27:48Z
dc.date.available2019-03-26T14:27:48Z
dc.date.issued2016-03-17
dc.identifier.citationGerrity, S., Kennelly, C., Clifford, E., & Collins, G. (2016). Hydrogen sulfide oxidation in novel Horizontal-Flow Biofilm Reactors dominated by an Acidithiobacillus and a Thiobacillus species. Environmental Technology, 37(17), 2252-2264. doi: 10.1080/09593330.2016.1147609en_IE
dc.identifier.issn1479-487X
dc.identifier.urihttp://hdl.handle.net/10379/15055
dc.description.abstractHydrogen Sulfide (H2S) is an odourous, highly toxic gas commonly encountered in various commercial and municipal sectors. Three novel, laboratory-scale, Horizontal-Flow Biofilm Reactors (HFBRs) were tested for the removal of H2S gas from air streams over a 178-day trial at 10 degrees C. Removal rates of up to 15.1 g [H2S] m(-3) h(-1) were achieved, demonstrating the HFBRs as a feasible technology for the treatment of H2S-contaminated airstreams at low temperatures. Bio-oxidation of H2S in the reactors led to the production of H+ and sulfate (SO42-) ions, resulting in the acidification of the liquid phase. Reduced removal efficiency was observed at loading rates of 15.1 g [H2S] m(-3) h(-1). NaHCO3 addition to the liquid nutrient feed (synthetic wastewater (SWW)) resulted in improved H2S removal. Bacterial diversity, which was investigated by sequencing and fingerprinting 16S rRNA genes, was low, likely due to the harsh conditions prevailing in the systems. The HFBRs were dominated by two species from the genus Acidithiobacillus and Thiobacillus. Nonetheless, there were significant differences in microbial community structure between distinct HFBR zones due to the influence of alkalinity, pH and SO4 concentrations. Despite the low temperature, this study indicates HFBRs have an excellent potential to biologically treat H2S-contaminated airstreams.en_IE
dc.description.sponsorshipThis work was supported by Science Foundation Ireland [grant number 08/RFP/ENM1762] and a European Research Council Starting Grant (3C-BIOTECH; no. 261330).en_IE
dc.formatapplication/pdfen_IE
dc.language.isoenen_IE
dc.publisherTaylor & Francisen_IE
dc.relation.ispartofEnvironmental Technologyen
dc.subjectH2S oxidationen_IE
dc.subjectgas treatmenten_IE
dc.subjectHorizontal-Flow Biofilm Reactoren_IE
dc.subjectAcidithiobacillusen_IE
dc.subjectThiobacillusen_IE
dc.subjectPOLYMERASE-CHAIN-REACTIONen_IE
dc.subjectBIOTRICKLING FILTERen_IE
dc.subjectBIOLOGICAL OXIDATIONen_IE
dc.subjectLOW-TEMPERATURESen_IE
dc.subjectACTIVATED CARBONen_IE
dc.subjectPACKING MATERIALen_IE
dc.subjectHFBR TECHNOLOGYen_IE
dc.subjectRIBOSOMAL-RNAen_IE
dc.subjectH2S EMISSIONen_IE
dc.subjectWASTE-WATERen_IE
dc.titleHydrogen sulfide oxidation in novel Horizontal-Flow Biofilm Reactors dominated by an Acidithiobacillus and a Thiobacillus speciesen_IE
dc.typeArticleen_IE
dc.date.updated2019-03-22T16:15:57Z
dc.identifier.doi10.1080/09593330.2016.1147609
dc.local.publishedsourcehttps://doi.org/10.1080/09593330.2016.1147609en_IE
dc.description.peer-reviewedpeer-reviewed
dc.contributor.funderScience Foundation Irelanden_IE
dc.contributor.funderEuropean Research Councilen_IE
dc.internal.rssid11342651
dc.local.contactEoghan Clifford, Room 1035, Alice Perry Engineering Building, Nui Galway, Galway. 2219 Email: eoghan.clifford@nuigalway.ie
dc.local.copyrightcheckedYes
dc.local.versionACCEPTED
dcterms.projectinfo:eu-repo/grantAgreement/SFI/SFI Research Frontiers Programme (RFP)/08/RFP/ENM1762/IE/Optimisation of a novel biofilm technology for the removal of nuisance odours using microsensors molecular biology techniques and mathematical modelling/en_IE
dcterms.projectinfo:eu-repo/grantAgreement/EC/FP7::SP2::ERC/261330/EU/Cold Carbon Catabolism of Microbial Communities underprinning a Sustainable Bioenergy and Biorefinery Economy/3CBIOTECHen_IE
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