Occurrence of ‘thermophilic’ campylobacters in sewage and their removal by treatment processes
- 1 October 1988
- journal article
- research article
- Published by Cambridge University Press (CUP) in Epidemiology and Infection
- Vol. 101 (2), 279-286
- https://doi.org/10.1017/s0950268800054194
Abstract
Removal of thermophilic campylobacters from sewage at three different stages of treatment at a trickling filter sewage works has been assessed. Samples of incoming sewage, primary sedimentation effluent and final effluent were taken daily from 06.00 h to 20.00 h for 5 consecutive days and the numbers of campylobacters determined by using a most probable number method. Each sample was cultured using 2 h pre–enrichment followed by enrichment in Preston broth for 48 h and detection by plating. Over 78% of the incoming campylobacters were removed after primary sedimentation and < 0.1% remained in the final effluent. Campylobacter jejun biotype I and biotype II constituted 81.5% and 15.9% respectively of the 232 isolates tested. Serotypes common in sewage were common in human faces. It appears that the trickling filter sewage works removes most of the campylobacters entering the sewage works, but large numbers, estimated to be approximately 1010, are released into the environment daily from a local sewage works.Keywords
This publication has 64 references indexed in Scilit:
- A study of factors affecting the sensitivity of the passive haemagglutination method for serotyping Campylobacter jejuni and Campylobacter coli and recommendations for a more rapid procedureCanadian Journal of Microbiology, 1987
- Antibiotic and deoxycholate resistance in Campylobacter jejuni following freezing or heatingJournal of Applied Bacteriology, 1985
- Radioactive decay ofbyemissionPhysical Review C, 1985
- Results of the First Year of National Surveillance of Campylobacter Infections in the United StatesThe Journal of Infectious Diseases, 1985
- Evidence of udder excretion ofCampylobacter jejunias the cause of milk-borne campylobacter outbreakEpidemiology and Infection, 1985
- A note on the effect of different storage procedures on the ability of Preston medium to recover campylobactersJournal of Applied Bacteriology, 1985
- Campylobacter enteritis after falling into sewage.BMJ, 1983
- WATER-BORNE OUTBREAK OF CAMPYLOBACTER GASTROENTERITISThe Lancet, 1983
- Campylobacter enteritis – the first five yearsEpidemiology and Infection, 1982
- The Removal of Salmonellas in Conventional Sewage Treatment ProcessesJournal of Applied Bacteriology, 1979