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Fecal coliform and escherichia coli in microplastic biofilms grown in wastewater and inactivation by peracetic acid and microplastic monitoring in stormwater of a city, suburban college campus, and bioretention basin
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TitleInfo
Title
Fecal coliform and escherichia coli in microplastic biofilms grown in wastewater and inactivation by peracetic acid and microplastic monitoring in stormwater of a city, suburban college campus, and bioretention basin
Name
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Boni
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William A.
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William A. Boni
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author
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Fahrenfeld
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Nicole L
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Nicole L Fahrenfeld
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Advisory Committee
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chair
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Mazurek
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Monica A
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Monica A Mazurek
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Advisory Committee
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internal member
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Guo
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Qizhong
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Qizhong Guo
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Advisory Committee
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internal member
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Rutgers University
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degree grantor
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School of Graduate Studies
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school
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Text
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theses
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ETD graduate
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2021
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2021-05
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2021
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English
Abstract
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Microplastics (MP) have been proposed as a vector for pathogenic microorganisms in the freshwater environment. The objectives of the first study were (1) to compare the fecal indicator growth in biofilms on MP and material control microparticles incubated in different wastewater fractions and (2) to compare MP biofilm, natural microparticle biofilm, and planktonic cell susceptibility to disinfection by peracetic acid (PAA). Biofilms were grown on high-density polyethylene, low-density polyethylene, polypropylene MP or wood chips (as a material control) and incubated in either wastewater influent or pre-disinfection secondary effluent. Reactors were disinfected with PAA, biofilms were dislodged, and fecal coliform and E. coli were cultivated. Fecal indicators were quantifiable in both MP and wood biofilms incubated in the wastewater influent but only on the wood biofilms incubated in secondary wastewater effluent. More fecal coliform grew in the wood biofilms than MP biofilms, and the biofilms grown on MP and woodchips were more resistant to disinfection than planktonic bacteria. Thus, it may be possible to refer to the disinfection literature for fecal indicators in biofilm on other particles to predict behavior on MP. Treatments that remove particles in general would help reduce the potential for fecal indicator bypass of disinfection. The investigation detailed above was published in the March 2021 issue of WER. The second part of the thesis consists of an investigation of microplastics in stormwater:
Microplastics (MP) are a commonly reported pollutant in the freshwater, marine, and soil environment. The objectives of the second study were to determine (1) the microplastic concentration, (2) polymer fingerprints and (3) inter-storm variation of MP in two stormwater outfalls and a bioretention basin. Water samples were collected during rain events over the summer and fall of 2020 and MP content analyzed with ATR-FTIR. nMDS analysis was performed on polymer fingerprints and significant differences were observed in MP composition between sites. In addition, significant differences in MP concentration existed between sites as well. A negative correlation was observed between MP concentration and cumulative rainfall. Evidence of MP accumulation in green infrastructure was noted. When designing stormwater management systems, the removal of MP and other particulate matter must be considered to optimize receiving water quality.
Microplastics (MP) are a commonly reported pollutant in the freshwater, marine, and soil environment. The objectives of the second study were to determine (1) the microplastic concentration, (2) polymer fingerprints and (3) inter-storm variation of MP in two stormwater outfalls and a bioretention basin. Water samples were collected during rain events over the summer and fall of 2020 and MP content analyzed with ATR-FTIR. nMDS analysis was performed on polymer fingerprints and significant differences were observed in MP composition between sites. In addition, significant differences in MP concentration existed between sites as well. A negative correlation was observed between MP concentration and cumulative rainfall. Evidence of MP accumulation in green infrastructure was noted. When designing stormwater management systems, the removal of MP and other particulate matter must be considered to optimize receiving water quality.
Subject
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Topic
Civil and Environmental Engineering
Subject
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Topic
Microplastics
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Rutgers University Electronic Theses and Dissertations
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ETD_11660
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1 online resource (vii, 52 pages) : illustrations
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M.S.
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Includes bibliographical references
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School of Graduate Studies Electronic Theses and Dissertations
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rucore10001600001
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doi:10.7282/t3-hrr9-vs43
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Boni
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William
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2021-06-11
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William Boni
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Rutgers University. School of Graduate Studies
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Author Agreement License
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I hereby grant to the Rutgers University Libraries and to my school the non-exclusive right to archive, reproduce and distribute my thesis or dissertation, in whole or in part, and/or my abstract, in whole or in part, in and from an electronic format, subject to the release date subsequently stipulated in this submittal form and approved by my school. I represent and stipulate that the thesis or dissertation and its abstract are my original work, that they do not infringe or violate any rights of others, and that I make these grants as the sole owner of the rights to my thesis or dissertation and its abstract. I represent that I have obtained written permissions, when necessary, from the owner(s) of each third party copyrighted matter to be included in my thesis or dissertation and will supply copies of such upon request by my school. I acknowledge that RU ETD and my school will not distribute my thesis or dissertation or its abstract if, in their reasonable judgment, they believe all such rights have not been secured. I acknowledge that I retain ownership rights to the copyright of my work. I also retain the right to use all or part of this thesis or dissertation in future works, such as articles or books.
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2021-05-31
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2022-05-31
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Access to this PDF has been restricted at the author's request. It will be publicly available after May 31st, 2022.
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The author owns the copyright to this work.
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Copyright protected
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Open
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Permission or license
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2021-04-01T17:13:14
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