Microbial pathogen removal from domestic effluent using coral sand in Kiribati.
Kiribati
coral sand
effluent drainage field
microbial removal
public health
septic tank
sewage
Journal
Journal of applied microbiology
ISSN: 1365-2672
Titre abrégé: J Appl Microbiol
Pays: England
ID NLM: 9706280
Informations de publication
Date de publication:
Apr 2020
Apr 2020
Historique:
received:
02
07
2019
revised:
30
10
2019
accepted:
21
11
2019
pubmed:
18
12
2019
medline:
30
5
2020
entrez:
18
12
2019
Statut:
ppublish
Résumé
Infiltration experiments aimed to show the effectivity of coral sand to remove micro-organisms in septic tank wastewater treatment system, in South Tarawa, Kiribati. Laboratory experiments evaluated effective microbial removal properties of a packed bed of coral beach sand conditioned with domestic effluent. Bacterial and viral indicators Escherichia coli J6-2, Enterococci faecalis and f-RNA (MS2) bacteriophage, along with viral pathogens adenovirus, echovirus, norovirus and rotavirus, were dosed (at 10 On the basis of the relative spatial distribution of trace organisms in the sand, we speculate that adsorption processes likely dominated attenuation of the viral pathogens, more so than physical straining effects. Further study is required to fully elucidate the removal mechanisms. To the best of our knowledge this is the first study of the effective microbial removal capacity of coral sand under unsaturated conditions. The work represents an initial exploratory step of developing some standardized design practice of on-site wastewater treatment systems in Kiribati, to offer enhanced protection of groundwater resources and reduce diarrhoeal disease.
Substances chimiques
Sand
0
Water Pollutants
0
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
1208-1220Subventions
Organisme : Ministry for Foreign Affairs and Trade (MFAT)
Organisme : Ministry for Business Innovation and Employment
ID : Strategic Scientific Investment Fund
Informations de copyright
© 2019 The Society for Applied Microbiology.
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