Characterization of Campylobacter jejuni and Campylobacter coli isolated from waste water.
The raw sewage samples of the investigated municipal sewage plant (sewage flow of about 30,000 m3/d) contained about 10(3) campylobacters/100 ml. The sewage plant reduced 80.8% of organic wastes (COD), 85.0% of colony counts (20 degrees C), 92.5% of total coliforms and 88.0% of campylobacters. The sewage plant effluent contained an average of 1.3 X 10(2) campylobacters/100 ml. About 10(10) campylobacters are discharged with the effluent of the high-output sewage plant into the receiving water every day. No reduction of the indicator bacteria was found in the activated sludge tank, there was, however, a significant reduction (94.5%) of campylobacters. In total, 94 strains were differentiated by biotyping and serotyping. 59.6% were found to be Campylobacter jejuni and 40.4% were Campylobacter coli. 8 Serotypes were found among the C. jejuni strains and 12 among C. coli. The raw sewage of the investigated oxidation pond treatment plant contained an average of 51 campylobacters/100 ml. The sewage plant effluent did not show campylobacters in any case.
Stelzer
W
W
Forschungsinstitut für Hygiene und Mikrobiologie, Bad Elster, GDR.
Mochmann
H
H
Richter
U
U
Dobberkau
H J
HJ
D015373:Bacterial Typing Techniques; D002167:Campylobacter / Q000145:classification* / Q000254:growth & development; D002168:Campylobacter fetus / Q000145:classification* / Q000254:growth & development; D015169:Colony Count, Microbial; D012703:Serotyping; D012722:Sewage; D014871:Water Microbiology
D012722:Sewage