Effects of chlorination/chlorine dioxide disinfection on biofilm bacterial community and corrosion process in a reclaimed water distribution system

Characteristics of water quality and bacterial communities in three water supply pipelines

“…It can be found from Fig. S4(a) † that the highest abundance among the four samples at the phylum-level was Proteobacteria (average 72.82%), regardless of the pipe material, 40,45,[81][82][83][84] followed by Bacteroidetes (average 8.14%) and Cyanobacteria (average value 7.08%), Actinobacteria (average 3.61%) and Acidobacteria (average value 2.33%), while the remaining percentages were less than 1%, which is consistent with pervious research. [85][86][87] In addition, a certain amount of 16S rRNA sequences (average of 3.31%) in the four samples could not be assigned to any known bacterial species, but closely matched other unclassied sequences originating from drinking water, possibly indicating the existence of novel bacteria adapted to the DWDS.…”

“…The PCR amplication used the V4 variable region amplication primers, with the sequences: barcode-515F (5 0 -GTGYCAGCMGCCGCGGTAA-3 0 ) and 806R (5 0 -GGAC-TACNVGGGTWTCTAA-3 0 ). [38][39][40]…”

“…75,76 However, the corrosion of the SS pipe may not be that easy, as Zhang et al reported that some loose occus seen on the surface of their sample could represent the metabolites of bacteria. 40 Before running ( Fig. 3(g)), and on the 14 th day (Fig.…”

Microbial diversity in full-scale water supply systems through sequencing technology: a review

“…However, a survey on the microbial biogeography of drinking water in the Netherlands showed that the population exchange between the biolm and the water matrix was limited; different DWDSs had different 3 Steel pipes (SS and ST) had the highest biolm formation potential (BFP) and CU showed the lowest BFP microbial communities, and the treated water had signicant stability in time and space. 34 In addition, treated drinking water quality, including temperature, 132,144,145 suspended solids, 35,146 electrolytes, 28,125,[147][148][149] disinfectants, 149 and organic matter 28 also inuence microbial diversity in tap water. Sun et al 28 reported that pH and COD were positively correlated with the relative abundance of Proteobacteria and Firmicutes.…”

Plasma Sterilization Effectively Reduces Bacterial Contamination in Dental Unit Waterlines

“…However, most of them could not totally eradicate biofilm in long-term use [12]. Some disinfectants (e.g., chlorine compounds and acetic acid) even caused damage to the water pipes [13, 14]. Most of these disinfectants could only be used as shock treatment due to their harmfulness to the patients and need more compliance from staff in dental clinic.…”