Effects of chlorine disinfection on the membrane fouling potential of bacterial strains isolated from fouled reverse osmosis membranes.
Biofouling potential
Chlorine disinfection
Chlorine-resistant bacteria
Reclaimed water
Reverse osmosis
Journal
The Science of the total environment
ISSN: 1879-1026
Titre abrégé: Sci Total Environ
Pays: Netherlands
ID NLM: 0330500
Informations de publication
Date de publication:
25 Nov 2019
25 Nov 2019
Historique:
received:
09
05
2019
revised:
03
07
2019
accepted:
23
07
2019
pubmed:
4
8
2019
medline:
22
11
2019
entrez:
4
8
2019
Statut:
ppublish
Résumé
Biofouling of reverse osmosis (RO) membranes is an inevitable issue in wastewater reclamation and limits the application of RO systems. Chlorine disinfection is widely used as a pretreatment to control biofouling. However, the extracellular polymeric substances (EPS) and cellular inclusions released during chlorine disinfection might also cause membrane fouling. Furthermore, little is known regarding the chlorine resistance of bacterial strains found on fouled RO membranes. In this study, four bacterial strains isolated from fouled RO membranes were used as testing subjects to investigate the bacterial inactivation performance of chlorine disinfection. The effects of chlorine disinfection on the RO membrane fouling potential of these strains were also revealed. The chlorine resistance ability of Sphingopyxis sp. BM1-1 was strongest among the four strains as it secretes the highest amount of EPS per cell. The log inactivation efficiency of this strain was 1-log by 0.2 mg-Cl
Identifiants
pubmed: 31376757
pii: S0048-9697(19)33504-1
doi: 10.1016/j.scitotenv.2019.133579
pii:
doi:
Substances chimiques
Membranes, Artificial
0
Waste Water
0
Chlorine
4R7X1O2820
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
133579Informations de copyright
Copyright © 2019 Elsevier B.V. All rights reserved.