Metabolism of Some Anionic Tallow-based Detergents by Sewage Microorganisms1

Theone C. Cordon, Elmer W. Maurer, M. V. Nuñez-Ponzoa, A. J. Stirton
1968 Applied microbiology  
A method in which the test detergent was the sole source of carbon was used to study the metabolism of several tallow-based detergents. These were tallow alcohol sulfates, long-chain ether alcohol sulfates, and esters of a-sulfo fatty acids. Sodium p-(l-methylundecyl)benzenesulfonate (LAS) was used as a reference material. The alcohol sulfates were the most rapidly and completely metabolized (96 to 99%), and one ether alcohol sulfate was 94% degraded. The other compounds were metabolized to the
more » ... metabolized to the extent of 61 to 87%; LAS was 80% degraded. Except for the alcohol sulfates, loss of methylene blue activity (MBAS) occurred long before the chemical oxygen demand (COD) values had reached a minimum; with the alcohol sulfates, MBAS and COD decreased simultaneously.
doi:10.1128/aem.16.1.48-52.1968 fatcat:l7k2fx7abbedxetgtsmvdqo4sm