Degradation of bis(2-ethylhexyl) phthalate constituents under methanogenic conditions |
| |
Authors: | J. Ejlertsson B. H. Svensson |
| |
Affiliation: | (1) Department of Water and Environmental Studies, Linköping University, S-581 83 Linköping, Sweden |
| |
Abstract: | The degradation of bis(2-ethylhexyl) phthalate (DEHP) and its intermediary hydrolysis products 2-ethylhexanol (2-EH) and mono(2-ethylhexyl) phthalate (MEHP) was investigated in a methanogenic phthalic acid ester-degrading enrichment culture at 37°C. 2-Ethylhexanoic acid (2-EHA), a plausible degradation product of 2-EH, was also studied. The culture readily degraded 2-EH via 2-EHA to methane which was formed in stoichiometric amounts assuming complete degradation of 2-EH to methane and carbon dioxide. MEHP was degraded to stoichiometric amounts of methane with phthalic acid as a transient intermediate. DEHP remained unaffected throughout the experimental period (330 days).Abbreviations 2-EH 2-ethylhexyl alcohol - 2-EHA 2-ethylhexanoic acid - BBP butylbenzyl phthalate - Be-CoA benzoyl Coenzyme A - CoA Coenzyme A - DEHP bis(2-ethylhexyl) phthalate - MEHP mono(2-ethylhexyl) phthalate - MSW municipal solid waste - PA phthalic acid - PAE phthalic acid ester - TMS trimethylsilyl derivative |
| |
Keywords: | biodegradation Bis(2-ethylhexyl) phthalate 2-ethylhexanol 2-ethylhexanoic acid methane formation mono(2-ethylhexyl) phthalate phthalic acid esters |
本文献已被 SpringerLink 等数据库收录! |