Bacterial community changes in copper and PEX drinking water pipeline biofilms under extra disinfection and magnetic water treatment

Aims To study the stability of biofilms and water quality in pilot scale drinking water copper and PEX pipes in changing conditions (extra disinfection, magnetic water treatment, MWT). Methods and Results Next‐generation sequencing (NGS) of 16S ribosomal RNA genes (rDNA) to describe total bacterial...

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Veröffentlicht in:Journal of applied microbiology 2018-02, Vol.124 (2), p.611-624
Hauptverfasser: Inkinen, J., Jayaprakash, B., Ahonen, M., Pitkänen, T., Mäkinen, R., Pursiainen, A., Santo Domingo, J.W., Salonen, H., Elk, M., Keinänen‐Toivola, M.M.
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Sprache:eng
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Zusammenfassung:Aims To study the stability of biofilms and water quality in pilot scale drinking water copper and PEX pipes in changing conditions (extra disinfection, magnetic water treatment, MWT). Methods and Results Next‐generation sequencing (NGS) of 16S ribosomal RNA genes (rDNA) to describe total bacterial community and ribosomal RNA (rRNA) to describe active bacterial members in addition to traditional microbiological methods were applied. Biofilms from control copper and PEX pipes shared same most abundant bacteria (Methylobacterium spp., Sphingomonas spp., Zymomonas spp.) and average species diversities (Shannon 3·8–4·2) in rDNA and rRNA libraries, whereas few of the taxa differed by their abundance such as lower total Mycobacterium spp. occurrence in copper (
ISSN:1364-5072
1365-2672
DOI:10.1111/jam.13662