Effect of pipe material and disinfectant on active bacterial communities in drinking water and biofilms.

ABSTRACT:

Aims

We investigated the combined effects of pipe materials and disinfection chemicals on bacterial community and its active RNA fraction in water and biofilms in a pilot-scale premise plumbing system.

Methods and results

The changes in bacterial communities were studied within four pipelines using copper and cross-linked polyethylene (PEX) pipe with chlorine or chloramine disinfection. The total and active bacterial communities and the presence of opportunistic pathogens (Legionella spp. and Mycobacterium spp.) were analyzed using 16S rRNA (gene) amplicon sequencing. The dominant classes were Alphaproteobacteria (31%) and Gammaproteobacteria (24%). Class Planctomycetia was increased in active fraction of chlorinated waters and PEX pipe biofilms and decreased in chloraminate

SUBMITTER: Siponen S 

PROVIDER: S-EPMC12228834 | biostudies-literature | 2025 Jan

REPOSITORIES: biostudies-literature