Ammonia inhibition in thermophilic anaerobic process

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dc.contributor.author Liu, Tao
dc.contributor.department Civil, Construction, and Environmental Engineering
dc.date 2021-01-30T20:43:00.000
dc.date.accessioned 2021-02-26T09:08:55Z
dc.date.available 2021-02-26T09:08:55Z
dc.date.copyright Mon Jan 01 00:00:00 UTC 2001
dc.date.issued 2001-01-01
dc.description.abstract <p>Thermophilic anaerobic digestion, operated at a high temperature of 550C compared with other treatment processes, offers higher methane production, faster waste degradation, and better pathogen and virus reduction. It was widely used in treating sewage and animal wastes during the past decade. Ammonia is a common hydrolysis product during waste degradation and could cause inhibition when present in high concentrations. This study was conducted to reveal the effect of ammonia inhibition by focusing on methanogenesis, the most susceptible phase in anaerobic digestion. Besides, pH effect was considered, because pH could be an inhibition factor alone and interacts with ammonia inhibition by changing the relative ratio of ammonium to ammonia. Biomass exposed to different concentrations of total ammonia nitrogen (TAN) was used to study the acclimation effect. The response of these microorganisms was examined under inhibitory levels of TAN. In the later part of this study, models for ammonia inhibition and pH effect were assessed.</p>
dc.format.mimetype application/pdf
dc.identifier archive/lib.dr.iastate.edu/rtd/21428/
dc.identifier.articleid 22427
dc.identifier.contextkey 21346022
dc.identifier.doi https://doi.org/10.31274/rtd-20210128-44
dc.identifier.s3bucket isulib-bepress-aws-west
dc.identifier.submissionpath rtd/21428
dc.identifier.uri https://dr.lib.iastate.edu/handle/20.500.12876/98795
dc.language.iso en
dc.source.bitstream archive/lib.dr.iastate.edu/rtd/21428/Liu_ISU_2001_L582.pdf|||Fri Jan 14 22:37:27 UTC 2022
dc.subject.keywords Civil and construction engineering
dc.subject.keywords Civil engineering (Environmental engineering)
dc.subject.keywords Environmental engineering
dc.title Ammonia inhibition in thermophilic anaerobic process
dc.type article
dc.type.genre dissertation
dspace.entity.type Publication
thesis.degree.discipline Civil Engineering (Environmental Engineering)
thesis.degree.level dissertation
thesis.degree.name Master of Science
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