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dc.contributor.advisorMcMartin, Dena
dc.contributor.advisorCullimore, Roy
dc.contributor.authorOno, Takaya
dc.date.accessioned2014-10-17T18:20:00Z
dc.date.available2014-10-17T18:20:00Z
dc.date.issued2013-12
dc.identifier.urihttp://hdl.handle.net/10294/5430
dc.descriptionA Thesis Submitted to the Faculty of Graduate Studies and Research In Partial Fulfillment of the Requirements for the Degree of Master of Applied Science in Environmental Systems Engineering, University of Regina. xi, 64 p.en_US
dc.description.abstractThe conventional standard methods for measuring wastewater quality include the 5-day biochemical oxygen demand (BOD5) and carbonaceous BOD (CBOD5). This thesis presents an alternative wastewater quality test that requires much less time to achieve valid results. This research addresses the precision and statistical validity of an alternative methodology consisting of a two-phased testing approach: an enhanced total adenosine triphosphate (E-tATP) process and percent confirmatory bacterial reduction (%CBR) process that evaluates the aggressiveness of heterotrophic aerobic bacteria (HAB) communities as a means to determining the overall wastewater quality. Primary influent (PI) and final effluent (FE) samples from two municipal wastewater treatment plants (WWTPs) in Saskatchewan were collected between September and December of 2012 for analysis using the proposed E-tATP and %CBR techniques. Results indicated that the E-tATP and %CBR methods can be completed in between 0.25 to 28 hours, significantly less than the typical 5-day test. The mean values of measured ATP for the E-tATP test ranged from approximately 24 000 to 79 000 pg/ml for PI, and 3 000pg/ml to 19 000 pg/ml for FE. The relative standard deviation (RSD) of the means ranged from 8.5 to 10.3% and 8.1 to 27.1%, for PI and FE, respectively. The analysis of the %CBR data also indicates that bacterial metabolic activity was directly impacted by incubation temperature (tested at 20, 22, and 28°C). Both E-tATP and %CBR results were significantly different among the months of September, November, and December in 2012, thus indicating the test is sensitive to detect the effect from changes in climate during fall and early winter seasons on wastewater. Moreover, analysis of the E-tATP and %CBR methods demonstrated they were statistically repeatable and reliable across all 180 E-tATP and 576 %CBR tests that were performed. The relationship between average values from the 15-minute E-tATP test and average %CBR values resulted in an R2 value of 0.898 based on exponential regression. These results indicate that a more practical approach to monitoring and managing wastewater discharge in a more timely fashion is available to wastewater regulators, managers and operators.en_US
dc.language.isoenen_US
dc.publisherFaculty of Graduate Studies and Research, University of Reginaen_US
dc.titleStatistical Evaluation of Rapid Biochemical Oxygen Demand Test for Monitoring Municipal Wastewater Qualityen_US
dc.typeThesisen
dc.description.authorstatusStudenten
dc.description.peerreviewyesen
thesis.degree.nameMaster of Science (MSc)en_US
thesis.degree.levelMaster'sen
thesis.degree.disciplineEngineering - Environmental Systemsen_US
thesis.degree.grantorUniversity of Reginaen
thesis.degree.departmentFaculty of Engineering and Applied Scienceen_US
dc.contributor.committeememberdeMontigny, David
dc.contributor.committeememberYoung, Stephanie
dc.contributor.externalexaminerVolodin, Andrei
dc.identifier.tcnumberTC-SRU-5430
dc.identifier.thesisurlhttp://ourspace.uregina.ca/bitstream/handle/10294/5430/Ono_Takaya_200255686_MASC_EVSE_Spring2014.pdf


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