Biodegradation of synthetic detergents evaluation by community trials Part 2: Alcohol and alkylphenol ethoxylates

Autor:	A. H. Mann, V. W. Reid
Rok vydání:	1971
Předmět:	Chromatography Alkylphenol General Chemical Engineering Trickling filter Organic Chemistry Alcohol Biodegradation Pulp and paper industry Synthetic Detergents chemistry.chemical_compound chemistry Sewage treatment Aeration Effluent
Zdroj:	Journal of the American Oil Chemists Society. 48:294-297
ISSN:	1558-9331 0003-021X
DOI:	10.1007/bf02609284
Popis:	The biodegradability of ethoxylates based on synthetic primary alcohols and on iso-octylphenol has been evaluated by field trials with a trickling filter sewage treatment plant serving a small community. Ethoxylates based on synthetic alcohols showed good biodegradability in the trickling filter even in winter. This is in line with laboratory tests. Effluents were practically nonfoaming and on further aeration an ultimate biodegradability of 99% was achieved. Ethoxylates based on iso-octylphenol biodegraded in winter to an extent of some 20% only. In summer, values as high as 80% were obtained. In general however ethoxylates of this type cannot be considered biodegradable. Effluents showed a considerable tendency to foam even under summer conditions.
Databáze:	OpenAIRE
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