Biodegradability testing of nonionic surfactants / Brian Brownlee. : En36-522/31-1974E-PDF
"The biodegradability of three nonionic surfactants was determined at 20ºC. The OECD screening method was used. Cultures were inoculated with secondary sewage effluent. Surfactant concentrations were measured by the Wickbold method consisting of solvent extraction by foam stripping, precipitation of surfactant with a bismuth reagent, and potentiometric determination of the bismuth. Degree of biodegradation decreased in the order: alcohol ethoxylate, nonylphenol ethoxylate, branched alkylphenol ethoxylate"--Summary.
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publications.gc.ca/pub?id=9.882402&sl=1
| Ministère/Organisme | Canada. Environment Canada. Canada Centre for Inland Waters. |
|---|---|
| Titre | Biodegradability testing of nonionic surfactants / Brian Brownlee. |
| Titre de la série | Unpublished report |
| Type de publication | Série - Voir l'enregistrement principal |
| Langue | [Anglais] |
| Format | Électronique |
| Document électronique | |
| Note(s) | Digitized edition from print [produced by Environment and Climate Change Canada]. Includes bibliographical references (page 16). |
| Information sur la publication | [Burlington, ON] : Canada Centre for Inland Waters, December 1974. |
| Auteur / Contributeur | Brownlee, B. G., author. |
| Description | 1 online resource (19 pages) : figures. |
| Numéro de catalogue |
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| Descripteurs | Surface active agents -- Biodegradation. Surfactants -- Biodégradation. |
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