Application of low-cost waste material from the petroleum industry in wastewater treatment and polymer composites

Simple item page
dc.contributor.advisorSundararaj, Uttandaraman
dc.contributor.authorEshraghian, Afrooz
dc.contributor.committeememberPonnurangam, Sathish
dc.contributor.committeememberYarranton, Harvey
dc.date2022-11
dc.date.accessioned2022-08-09T13:52:56Z
dc.date.available2022-08-09T13:52:56Z
dc.date.issued2022-07-28
dc.description.abstractIn this thesis, diverse applications of solid petroleum waste, including asphaltene and clay, are discussed. As part of this thesis, it is hypothesized that asphaltene and clay interact with polymers and pollutants in wastewater. By interacting with pollutants, they can adsorb pollutants, and by interacting with polymers, they can disperse in polymers, and thus can be used as adsorbents for wastewater treatment and as fillers in polymer composites. To use asphaltene for adsorbing pollutants from wastewater, it is hypothesized that asphaltene functionalization will change the surface properties of asphaltene, leading to enhanced adsorption. Acid-treated asphaltene is used as an adsorbent for the removal of methyl orange from wastewater. Modified asphaltene has a large surface area and oxygen and nitrogen functionalities, leading to 96% removal of MO from 20 mg/L MO solution. Moreover, the Freundlich isotherm model, pseudo-second-order, and intraparticle diffusion models describe the adsorption process very well. In addition, the asphaltene can be easily regenerated using ethanol, and the removal percent is still 64% after five cycles.The second part investigates the compatibility of different asphaltenes, with different polymers including polypropylene (PP), polystyrene (PS), polymethyl methacrylate (PMMA), and polycarbonate (PC). By careful choice of the polarity of asphaltene-polymer pairs, mixing technique, and melt viscosity of the polymer, the dispersion of asphaltenes and final properties of composite materials can be tuned. For example, at 2.5 wt.% of asphaltene, more polar asphaltene showed 26% and 177% larger asphaltene agglomerates in PP and PS, respectively, than the less polar asphaltene. In the third part of this thesis, clay functionalization is hypothesized to improve clay-polymer interactions. Thus, the effect of nanoclay, representative of clay waste from petroleum industry, on dielectric properties in the X-band (8.2-12.4 GHz) of synthesized nitrogen-doped carbon nanotube (N-CNT)/nanoclay/ polyvinylidene fluoride (PVDF) nanocomposites is investigated. The incorporation of nanoclay improves the dielectric properties, i.e., the dissipation factor of N-CNT/PVDF nanocomposites. For instance, incorporation of 0.5 wt% nanoclay into N-CNT/PVDF nanocomposite at 1.0 wt% N-CNT loading results in 61% and 57% reduction in the dissipation factor and agglomeration area ratio, indicating improved N-CNT dispersion in PVDF.en_US
dc.identifier.citationEshraghian, A. (2022). Application of low-cost waste material from the petroleum industry in wastewater treatment and polymer composites (Doctoral thesis, University of Calgary, Calgary, Canada). Retrieved from https://prism.ucalgary.ca.en_US
dc.identifier.urihttp://hdl.handle.net/1880/114923
dc.identifier.urihttps://dx.doi.org/10.11575/PRISM/39969
dc.language.isoengen_US
dc.publisher.facultySchulich School of Engineeringen_US
dc.publisher.institutionUniversity of Calgaryen
dc.rightsUniversity of Calgary graduate students retain copyright ownership and moral rights for their thesis. You may use this material in any way that is permitted by the Copyright Act or through licensing that has been assigned to the document. For uses that are not allowable under copyright legislation or licensing, you are required to seek permission.en_US
dc.subjectAsphalteneen_US
dc.subjectClayen_US
dc.subjectPolymer compositeen_US
dc.subjectWastewateren_US
dc.subjectDielectricen_US
dc.subjectMethyl orangeen_US
dc.subjectRheologyen_US
dc.subjectDispersionen_US
dc.subjectCarbon nanotubeen_US
dc.subject.classificationEngineering--Chemicalen_US
dc.subject.classificationEngineering--Environmentalen_US
dc.subject.classificationMaterials Scienceen_US
dc.subject.classificationPsychology--Experimentalen_US
dc.titleApplication of low-cost waste material from the petroleum industry in wastewater treatment and polymer compositesen_US
dc.typedoctoral thesisen_US
thesis.degree.disciplineEngineering – Chemical & Petroleumen_US
thesis.degree.grantorUniversity of Calgaryen_US
thesis.degree.nameDoctor of Philosophy (PhD)en_US
ucalgary.item.requestcopytrueen_US
Files
Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
ucalgary_2022_eshraghian_afrooz.pdf
Size:
27.49 MB
Format:
Adobe Portable Document Format
Description:
Main thesis
Download
License bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
license.txt
Size:
2.62 KB
Format:
Item-specific license agreed upon to submission
Description:
Download
Collections
Open Theses and Dissertations