Mathematical Modeling of Solute Segregation and Redistribution During Freezing in Peat and Overlying Water (Heat and Mass Transfer, Solidification, Peatland ).
dc.contributor.author | Li, Xiang-Ming | |
dc.date.accessioned | 2020-09-09T02:11:04Z | |
dc.date.available | 2020-09-09T02:11:04Z | |
dc.date.issued | 1985 | |
dc.identifier.uri | https://hdl.handle.net/2027.42/160826 | |
dc.description.abstract | Freezing of the water in a peatland causes the redistribution of existing solutes in both the shallow water and the peat zone. Such solute redistribution phenomena are of interest for establishing the geochronology of deposits and determining the nature of pollutant burial. Understanding these phenomena is important for the consideration of peatlands as multi-use resources. This work presents the theoretical analyses and mathematical models to describe the solute redistribution processes during freezing in overlying water and interstitial water in the porous peat. The analyses include the segregation of the solute at the ice-water interface in both the overlying water and the peat zone, solute transport in overlying water, as well as adsorbable solute and non-adsorbable solute transport in the interstitial water of the peat zone. An algorithm has been developed to solve these nonlinear moving interface problems. A parameter estimation technique has been used to determine parameters in the model that are difficult to obtain directly from the experimental data. Computer simulation using this model provides good predictions for solute concentration profiles in the frozen water and the peat zones, as compared to independent experimental data. The basic theoretical analysis and the mathematical model have been utilized to describe the salt ice formation process and macrosegregation during freezing of binary alloys. | |
dc.format.extent | 119 p. | |
dc.language | English | |
dc.title | Mathematical Modeling of Solute Segregation and Redistribution During Freezing in Peat and Overlying Water (Heat and Mass Transfer, Solidification, Peatland ). | |
dc.type | Thesis | |
dc.description.thesisdegreename | PhD | en_US |
dc.description.thesisdegreediscipline | Chemical engineering | |
dc.description.thesisdegreegrantor | University of Michigan | |
dc.subject.hlbtoplevel | Engineering | |
dc.contributor.affiliationumcampus | Ann Arbor | |
dc.description.bitstreamurl | http://deepblue.lib.umich.edu/bitstream/2027.42/160826/1/8600488.pdf | en_US |
dc.owningcollname | Dissertations and Theses (Ph.D. and Master's) |
Files in this item
Remediation of Harmful Language
The University of Michigan Library aims to describe library materials in a way that respects the people and communities who create, use, and are represented in our collections. Report harmful or offensive language in catalog records, finding aids, or elsewhere in our collections anonymously through our metadata feedback form. More information at Remediation of Harmful Language.
Accessibility
If you are unable to use this file in its current format, please select the Contact Us link and we can modify it to make it more accessible to you.