Παρακαλώ χρησιμοποιήστε αυτό το αναγνωριστικό για να παραπέμψετε ή να δημιουργήσετε σύνδεσμο προς αυτό το τεκμήριο: https://hdl.handle.net/20.500.14279/3637
Τίτλος: Evidence of arsenic release promoted by disinfection by-products within drinking-water distribution systems
Συγγραφείς: Andra, Syam S. 
Makris, Konstantinos C. 
Costa, Costas 
Charisiadis, Pantelis 
Botsaris, George 
Major Field of Science: Natural Sciences
Field Category: Earth and Related Environmental Sciences
Λέξεις-κλειδιά: Arsenic;Biofilm;Disinfection by-products;Pipe scales;Drinking water distribution system;Water and health
Ημερομηνία Έκδοσης: 15-Φεβ-2014
Πηγή: Science of The Total Environment, 2014, vol. 472, pp. 1145-1151
Volume: 472
Start page: 1145
End page: 1151
Περιοδικό: Science of the Total Environment 
Περίληψη: Changes in disinfectant type could trigger a cascade of reactions releasing pipe-anchored metals/metalloids into finished water. However, the effect of pre-formed disinfection by-products on the release of sorbed contaminants (arsenic-As in particular) from drinking water distribution system pipe scales remains unexplored. A bench-scale study using a factorial experimental design was performed to evaluate the independent and interaction effects of trihalomethanes (TTHM) and haloacetic acids (HAA) on arsenic (As) release from either scales-only or scale-biofilm conglomerates (SBC) both anchored on asbestos/cement pipe coupons. A model biofilm (Pseudomonas aeruginosa) was allowed to grow on select pipe coupons prior experimentation. Either TTHM or HAA individual dosing did not promote As release from either scales only or SBC, detecting < 6 μg As L− 1 in finished water. In the case of scales-only coupons, the combination of the highest spike level of TTHM and HAA significantly (p < 0.001) increased dissolved and total As concentrations to levels up to 16 and 95 μg L− 1, respectively. Similar treatments in the presence of biofilm (SBC) resulted in significant (p < 0.001) increase in dissolved and total recoverable As up to 20 and 47 μg L− 1, respectively, exceeding the regulatory As limit. Whether or not, our laboratory-based results truly represent mechanisms operating in disinfected finished water in pipe networks remains to be investigated in the field.
URI: https://hdl.handle.net/20.500.14279/3637
ISSN: 00489697
DOI: 10.1016/j.scitotenv.2013.11.045
Rights: © Elsevier
Type: Article
Affiliation: Cyprus University of Technology 
Harvard University 
Publication Type: Peer Reviewed
Εμφανίζεται στις συλλογές:Άρθρα/Articles

CORE Recommender
Δείξε την πλήρη περιγραφή του τεκμηρίου

SCOPUSTM   
Citations

11
checked on 9 Νοε 2023

WEB OF SCIENCETM
Citations

10
Last Week
0
Last month
0
checked on 29 Οκτ 2023

Page view(s)

500
Last Week
0
Last month
30
checked on 14 Μαρ 2025

Google ScholarTM

Check

Altmetric


Όλα τα τεκμήρια του δικτυακού τόπου προστατεύονται από πνευματικά δικαιώματα