PMID- 26414297
OWN - NLM
STAT- MEDLINE
DCOM- 20160922
LR  - 20151218
IS  - 1879-2448 (Electronic)
IS  - 0043-1354 (Linking)
VI  - 87
DP  - 2015 Dec 15
TI  - Surface analysis of pilot distribution system pipe autopsies: The relationship of 
      organic and inorganic deposits to input water quality.
PG  - 202-10
LID - S0043-1354(15)30244-X [pii]
LID - 10.1016/j.watres.2015.09.031 [doi]
AB  - Time-of-Flight Secondary Ion Mass Spectrometry (ToF-SIMS) surface analysis was 
      conducted to characterise deposits in polyethylene pipes used in a novel pilot 
      water distribution system (PDS). The system consisted of four (4) parallel 
      distribution systems receiving water from different treatment processes, ranging 
      from conventional coagulation through to an advanced membrane filtration system. 
      After two years of operation, the distribution system was shut down and samples 
      of pipe were collected for autopsy analysis. Inlet and outlet samples from each 
      PDS were collected for purpose of comparison. ToF-SIMS was used to assess 
      chemical differences in surface biofilm accumulation and particulate deposition, 
      which resulted as a consequence of the treatment method and operational mode of 
      each system. These data supplemented previously collected bacteriological and 
      chemical water quality data. Results from the inorganic analysis of the pipes 
      were consistent with corrosion and contamination events that occurred upstream in 
      the corresponding treatment systems. Principal component analysis of data on 
      organic constituents showed oxygen and nitrogen containing fragments were 
      associated with the treatment inlet and outlet samples. These types of signals 
      can often be ascribed to biofilm polysaccharides and proteins. A trend was 
      observed when comparing samples from the same PDS, showing an association of 
      lower molecular weight (MW) organic fragments with the inlet and higher MW 
      organic fragments with the outlet samples.
CI  - Copyright (c) 2015 Elsevier Ltd. All rights reserved.
FAU - Fabris, Rolando
AU  - Fabris R
AD  - Australian Water Quality Centre, SA Water Corporation, Adelaide, South Australia 
      5001, Australia. Electronic address: rolando.fabris@sawater.com.au.
FAU - Denman, John
AU  - Denman J
AD  - Ian Wark Research Institute, University of South Australia, Mawson Lakes, South 
      Australia 5095, Australia.
FAU - Braun, Kalan
AU  - Braun K
AD  - Australian Water Quality Centre, SA Water Corporation, Adelaide, South Australia 
      5001, Australia.
FAU - Ho, Lionel
AU  - Ho L
AD  - Australian Water Quality Centre, SA Water Corporation, Adelaide, South Australia 
      5001, Australia.
FAU - Drikas, Mary
AU  - Drikas M
AD  - Australian Water Quality Centre, SA Water Corporation, Adelaide, South Australia 
      5001, Australia.
LA  - eng
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
DEP - 20150925
PL  - England
TA  - Water Res
JT  - Water research
JID - 0105072
SB  - IM
MH  - *Bacterial Physiological Phenomena
MH  - *Biofilms
MH  - Pilot Projects
MH  - South Australia
MH  - *Water Microbiology
MH  - *Water Quality
MH  - Water Supply/*methods
OTO - NOTNLM
OT  - Drinking water
OT  - Pilot distribution system
OT  - Pipe autopsy
OT  - ToF-SIMS
EDAT- 2015/09/29 06:00
MHDA- 2016/09/23 06:00
CRDT- 2015/09/29 06:00
PHST- 2015/06/05 00:00 [received]
PHST- 2015/09/10 00:00 [revised]
PHST- 2015/09/17 00:00 [accepted]
PHST- 2015/09/29 06:00 [entrez]
PHST- 2015/09/29 06:00 [pubmed]
PHST- 2016/09/23 06:00 [medline]
AID - S0043-1354(15)30244-X [pii]
AID - 10.1016/j.watres.2015.09.031 [doi]
PST - ppublish
SO  - Water Res. 2015 Dec 15;87:202-10. doi: 10.1016/j.watres.2015.09.031. Epub 2015 
      Sep 25.