Isolation, identification and reviewing the health effect of HPC bacteria in household point-of-use (PoU) water treatment devices: a case study, Ahvaz, Iran.
Bacterial identification
Drinking water
HPC bacteria
Point-of-use (PoU)
Polymerase chain reaction (PCR)
Water treatment
Journal
Journal of environmental health science & engineering
ISSN: 2052-336X
Titre abrégé: J Environ Health Sci Eng
Pays: England
ID NLM: 101613643
Informations de publication
Date de publication:
Jun 2021
Jun 2021
Historique:
received:
28
09
2019
accepted:
20
10
2020
entrez:
21
6
2021
pubmed:
22
6
2021
medline:
22
6
2021
Statut:
epublish
Résumé
In Ahwaz, a city in west southern Iran, the majority of households are using Point of Use (PoU) water treatment units. The heterotrophic plate count (HPC) bacteria were isolated from these units while they were mounted on water distribution system in order to determine the variations in HPC and diversity of the bacterial population using polymerase chain reaction (PCR). Results showed that bacterial population regrowth in PoU units could increase HPC exceeding the limit of the 500 CFU/mL in outlet water. In around 70% of the input water samples, the HPC was less than 500 CFU/ml with a mean of 226.7 (CI 95%: 28.1-425.3). HPC in output treated water samples had an increasing trend from the start of the unit operation with a mean of 2416.4 (CI 95%: 1074.9-3757.9). Out of 49 detected bacterial strains, 20 strains were Gram-negative and 29 Gram-positive.
Identifiants
pubmed: 34150218
doi: 10.1007/s40201-020-00577-7
pii: 577
pmc: PMC8172727
doi:
Types de publication
Journal Article
Langues
eng
Pagination
59-69Informations de copyright
© Springer Nature Switzerland AG 2021.
Déclaration de conflit d'intérêts
Conflict of interestThe authors declare that they have no conflict of interests.
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