Chemical characterization and aquatic biotoxicity testing of dye wastewaters and their reduction products

Simple item page
dc.contributor.authorOlivier, Julie A.en
dc.contributor.departmentEnvironmental Sciences and Engineeringen
dc.date.accessioned2014-03-14T21:43:01Zen
dc.date.adate2009-08-18en
dc.date.available2014-03-14T21:43:01Zen
dc.date.issued1993en
dc.date.rdate2009-08-18en
dc.date.sdate2009-08-18en
dc.description.abstractThe compound p-(2-hydroxyethylsulfone) aniline was isolated from a reduced solution of a fiber-reactive azo dye. The identity and purity of this product was assessed through elemental composition analysis, high performance liquid chromatography (HPLC), gas chromatography/mass spectroscopy (GC/MS), and nuclear magnetic resonance spectroscopy (NMR). The toxicity of this purified compound was measured with Microtox and Daphnia pulex tests. Microtox tests were also performed on compounds with similar structures to p- (2-hydroxyethylsulfone) aniline. Wastewater samples containing textile dye wastes from a Publicly Owned Treatment Works (POTW) that treated textile dye wastes were monitored for the presence of p-(2-hydroxyethylsulfone) aniline using HPLC. Microtox testing was performed on these samples. Analytical tests confirmed the identity and purity of p-(2-hydroxyethylsulfone) aniline as the reduced product. Microtox tests revealed the concentration at which 50% of the light output was reduced (EC₅₀) after 5 minutes of exposure was 12.8 mg/L. Daphnia pulex testing yielded the concentration which was lethal to 50% of the tested organisms (LC₅₀) to be 113 mg/L. The 5-minute Microtox EC₅₀, values of aniline, sulfanilamide, 2-hydroxyethylsulfone, and 4-ethylaniline were 106.7, 8.15, >80, and 2.05 mg/L, respectively. The reduction product, p-(2-hydroxyethylsulfone)aniline, was not detected in textile-containing wastewater from the Martinsville POTW. The Microtox EC₅₀, for this wastewater, ranged from 6.05 to >75 mg/L.en
dc.description.degreeMaster of Scienceen
dc.format.extentxii, 91 leavesen
dc.format.mediumBTDen
dc.format.mimetypeapplication/pdfen
dc.identifier.otheretd-08182009-040505en
dc.identifier.sourceurlhttp://scholar.lib.vt.edu/theses/available/etd-08182009-040505/en
dc.identifier.urihttp://hdl.handle.net/10919/44293en
dc.language.isoenen
dc.publisherVirginia Techen
dc.relation.haspartLD5655.V855_1993.O458.pdfen
dc.relation.isformatofOCLC# 30754933en
dc.rightsIn Copyrighten
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subject.lccLD5655.V855 1993.O458en
dc.subject.lcshAniline -- Analysisen
dc.subject.lcshAniline -- Toxicity testingen
dc.subject.lcshAzo dyesen
dc.subject.lcshTextile waste -- Analysisen
dc.subject.lcshTextile waste -- Testingen
dc.titleChemical characterization and aquatic biotoxicity testing of dye wastewaters and their reduction productsen
dc.typeThesisen
dc.type.dcmitypeTexten
thesis.degree.disciplineEnvironmental Sciences and Engineeringen
thesis.degree.grantorVirginia Polytechnic Institute and State Universityen
thesis.degree.levelmastersen
thesis.degree.nameMaster of Scienceen

Files

Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
LD5655.V855_1993.O458.pdf
Size:
3.44 MB
Format:
Adobe Portable Document Format
Description:
Download

Collections

Masters Theses