Title

Evaluation of Biodegradability and Biodegradation Kinetics for Anionic, Nonionic, and Amphoteric Surfactants

Abstract

The biodegradation kinetics of anionic (sodium laureth sulfate – SLES), amphoteric (disodium cocoamphodiacetate – DSCADA), and nonionic surfactants (polyalcohol ethoxylate – PAE) were assessed in this laboratory study. Similar degradation behavior was observed for all surfactants with only a fraction of the parent compound readily biodegradable. Biodegradation, as estimated by COD removal, was initially (i.e., within 24 h) rapid, however only 40–70% of the surfactant molecules were readily biodegradable. Intrinsic kinetic parameters were successfully quantified for the readily biodegradable component of the surfactant. Inhibition was not observed and microbial kinetics of SLES, DSCADA, and PAE degradation fit the Monod model well. Average μ-S curves were generated for each surfactant. Based on these results, complete degradation of the target surfactants using biological waste treatment would be limited.

Description:10 pages

Date of this Version

July 2007

Identifier

ALS-NSCORT: p71

Publisher Identifier:

Water, Air, and Soil Pollution 183(1-4):177-186

Publisher

Springer Netherlands

ALS NSCORT Project Number

Project 6 - Bio-Regenerative Environmental Treatment for Health-air and water (BREATHe 1)

Project Lead

M. Katherine Banks

Language

English

ALS NSCORT Series

Published Materials

Administrative Contact

Dave Kotterman, dkotter@purdue.edu

Rights

Copyright 2006 Springer Netherlands. For more information please visit the publisher's home page at: http://www.springer.com

Access

This article is not available through e-pubs. Purdue Libraries have a hard copy of the journal in the Life Sciences Library (call number: 628.505 W291). Current Purdue University Faculty, Staff and Students may also access the full-text, electronic version of the article at: http://dx.doi.org/10.1007/s11270-007-9367-3

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