Impact of Wastewater Treatment on Helminth Eggs

Tabulated data are presented on the numbers of helminth eggs (nematodes, cestodes and trematodes), in crude and treated sewage, and in sludges and sediments at 3 different types of sewage works (activated sludge process, lagoons and sand filtration). Lagooning was the most effective, with complete r...

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Bibliographic Details
Published inWater science and technology Vol. 21; no. 3; pp. 295 - 297
Main Authors Schwartzbrod, J, Stien, J L, Bouhoum, K, Baleux, B
Format Journal Article
LanguageEnglish
Published London IWA Publishing 1989
Subjects
Eggs
Nematodes
Parasites
Public health
Retention
Sediments
Sludge
Wastewater
Wastewater treatment
Water treatment
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Summary:Tabulated data are presented on the numbers of helminth eggs (nematodes, cestodes and trematodes), in crude and treated sewage, and in sludges and sediments at 3 different types of sewage works (activated sludge process, lagoons and sand filtration). Lagooning was the most effective, with complete removal of helminth eggs even at short retention periods. However, studies are required in the viability and infectivity of the eggs remaining in the sediment. The activated sludge process and sand filtration reduced the numbers of eggs by 78 and 99 per cent, respectively.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:0273-1223
1996-9732
DOI:10.2166/wst.1989.0122