A race track type oxidation ditch with a disc aerator was constructed on a model scale. Tests were conducted in deionized water to study the effect of some disc design parameters and system operating parameters on the oxygen transfer rate was affected by the disc speed, disc thickness, hole diameter, immersion depth and number of discs operated in parallel. / The effect of the manure concentration on the microbial growth was investigated in a batch culture operation. High manure concentration had an inhibitory effect on the microbial growth. / Data from batch culture operation were used to design a continuous culture operation. The latter was used to evaluate the concept of minimal aeration of swine manure for odor control. The effluent quality (as measured by odor level and the concentrations of COD, nitrogenous componds and solids) was dependent on the initial manure concentration and on the retention time. The effluent from the ditch was free of offensive odor and can be spread on land without causing odor pollution problem.
| Identifer | oai:union.ndltd.org:LACETR/oai:collectionscanada.gc.ca:QMM.68658 |
| Date | January 1982 |
| Creators | Ghaly, Abdelkader Elmetwaly. |
| Publisher | McGill University |
| Source Sets | Library and Archives Canada ETDs Repository / Centre d'archives des thèses électroniques de Bibliothèque et Archives Canada |
| Language | English |
| Detected Language | English |
| Type | Electronic Thesis or Dissertation |
| Format | application/pdf |
| Coverage | Doctor of Philosophy (Department of Agricultural Engineering) |
| Rights | All items in eScholarship@McGill are protected by copyright with all rights reserved unless otherwise indicated. |
| Relation | alephsysno: 000594257, proquestno: AAINK60958, Theses scanned by UMI/ProQuest. |
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