JEWLScholar@MTSU Repository

Retention of water contaminants by fly ash amended pervious concrete blocks

Show simple item record

dc.contributor.advisor DiVincenzo, John en_US
dc.contributor.author Arefin, Shabnam F. en_US
dc.date.accessioned 2014-06-02T18:44:36Z
dc.date.available 2014-06-02T18:44:36Z
dc.date.issued 2012-12-18 en_US
dc.identifier.uri http://jewlscholar.mtsu.edu/handle/mtsu/3487
dc.description.abstract Fly 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.abstract The 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.publisher Middle Tennessee State University en_US
dc.subject BOD en_US
dc.subject COD en_US
dc.subject Biodegradability en_US
dc.subject Fly ash en_US
dc.subject Nutrients en_US
dc.subject Phosphates en_US
dc.subject Pervious Concrete en_US
dc.subject Urban Runoff en_US
dc.subject Water Contaminants en_US
dc.title Retention of water contaminants by fly ash amended pervious concrete blocks en_US
dc.type Thesis en_US
dc.contributor.committeemember Kline, Paul en_US
dc.contributor.committeemember Chusuei, Charles en_US
dc.contributor.committeemember Van Patten, Greg en_US
dc.thesis.degreelevel Masters en_US
dc.thesis.degreegrantor Middle Tennessee State University en_US
dc.subject.umi Chemistry en_US
dc.subject.umi Environmental science en_US
dc.description.degree M.S. en_US
dc.contributor.department Chemistry en_US


Files in this item

This item appears in the following Collection(s)

Show simple item record

Search JEWLScholar@MTSU


Browse

My Account

Statistics