Retention of water contaminants by fly ash amended pervious concrete blocks

dc.contributor.advisorDiVincenzo, Johnen_US
dc.contributor.authorArefin, Shabnam F.en_US
dc.contributor.committeememberKline, Paulen_US
dc.contributor.committeememberChusuei, Charlesen_US
dc.contributor.committeememberVan Patten, Gregen_US
dc.contributor.departmentChemistryen_US
dc.date.accessioned2014-06-02T18:44:36Z
dc.date.available2014-06-02T18:44:36Z
dc.date.issued2012-12-18en_US
dc.description.abstractFly ash amended pervious concrete has been demonstrated not to leach the hazardous compounds in the fly ash and may offer additional advantages by filtering out some contaminants. A series of experiments were conducted using five different types of fly ash amended pervious concrete blocks- 0% fly ash, 20% fly ash-high carbon content, 20% fly ash-low carbon content, 30% fly ash-high carbon content and 30% fly ash-low carbon content, to investigates the potential for biodegradation improvement of motor oil by pervious concrete blocks, and to what extent the pervious concrete blocks could retain water contaminants like BOD⁻ from urban runoff. Ion Chromatography (IC) was used to measure the retention of BOD⁻. Biodegradability was measured as the ratio of biochemical oxygen demand (BOD) to chemical oxygen demand (COD).en_US
dc.description.abstractThe range of BOD₅/COD values for leachate motor oil samples were 0.7 to 0.9, suggesting good biodegradation. The BOD₅/COD ratio improved with increasing motor oil retention as the percentage of fly ash increased in pervious concrete block. Phosphate leaching studies revealed that the 20% fly ash low carbon content and the 30 % fly ash high carbon content pervious concrete block did not leach any phosphate. The 0% fly ash, 20% fly ash high carbon content and 30% fly ash low carbon content concrete blocks leached phosphate. However, all five fly ash amended concrete blocks showed the ability to remove 99% of phosphate from high concentration phosphate solution (750 ppm).en_US
dc.description.degreeM.S.en_US
dc.identifier.urihttp://jewlscholar.mtsu.edu/handle/mtsu/3487
dc.publisherMiddle Tennessee State Universityen_US
dc.subjectBODen_US
dc.subjectCODen_US
dc.subjectBiodegradabilityen_US
dc.subjectFly ashen_US
dc.subjectNutrientsen_US
dc.subjectPhosphatesen_US
dc.subjectPervious Concreteen_US
dc.subjectUrban Runoffen_US
dc.subjectWater Contaminantsen_US
dc.subject.umiChemistryen_US
dc.subject.umiEnvironmental scienceen_US
dc.thesis.degreegrantorMiddle Tennessee State Universityen_US
dc.thesis.degreelevelMastersen_US
dc.titleRetention of water contaminants by fly ash amended pervious concrete blocksen_US
dc.typeThesisen_US

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