English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

For the first time, an activated sludge reactor, established for the degradation of cutting fluids, was examined for predominant bacteria. In addition, both total and viable numbers of bacteria in the reactor were determined so that the percentage of each predominant type in the total reactor population could be determined. Three samples were studied, and a total of 15 genera were detected. In each sample, the genusPseudomonas and the genusMicrocyclus were present in high numbers. Three other genera,Acinetobacter, Alcaligenes , andCorynebacterium , were also found in every sample but in lower numbers. In one sample, numerous appendaged bacteria were present, and one of these, the genusSeliberia , was the most predominant organism in that sample. However, in the other two samples no appendaged bacteria were detected. Six genera were found in this reactor which have not been previously reported in either cutting fluids in use or in other activated sludge systems. These genera wereAeromonas, Hyphomonas, Listeria, Microcyclus, Moraxella , andSpirosoma. None of the predominant bacteria belonged to groups of strict pathogens.

Predominant Bacteria in an Activated Sludge Reactor for the Degradation of Cutting Fluids