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Arsenic removal from drinking water by a household sand filter in Vietnam : effect of filter usage practices on arsenic removal efficiency and microbiological water quality

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Nitzsche, Katja Sonja ; Lan, Vi Mai ; Trang, Pham Thi Kim ; Viet, Pham Hung ; Berg, Michael ; Voegelin, Andreas ; Planer-Friedrich, Britta ; Zahoransky, Jan ; Müller, Stefanie-Katharina ; Byrne, James M. ; Schröder, Christian ; Behrens, Sebastian ; Kappler, Andreas:
Arsenic removal from drinking water by a household sand filter in Vietnam : effect of filter usage practices on arsenic removal efficiency and microbiological water quality.
In: Science of the Total Environment. Bd. 502 (2015) Heft 1 . - S. 526-536.
ISSN 1879-1026
DOI: https://doi.org/10.1016/j.scitotenv.2014.09.055

Abstract

Household sand-filters are applied to treat arsenic- and iron-containing anoxic groundwater that is used as drinking water in rural areas of North Vietnam. These filters immobilize poisonous arsenic (As) via co-oxidation with Fe(II) and sorption to or co-precipitation with the formed Fe(III)- (oxyhydr)oxides. However, information is lacking regarding the effect of the frequency and duration of filter use as well as of filter sand replacement on the residual As concentrations in the filtered water and on the presence of potentially pathogenic bacteria in the filtered and stored water. We therefore scrutinized a household sand filter with respect to As removal efficiency and presence of fecal indicator bacteria in treated water as a function of filter operation before and after sand replacement. Quantification of As in the filtered water showed that periods of intense daily use followed by periods of non-use and even sand replacement did not significantly (p

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Publikationsform: Artikel in einer Zeitschrift
Begutachteter Beitrag: Ja
Zusätzliche Informationen: BAYCEER124799
Institutionen der Universität: Fakultäten > Fakultät für Biologie, Chemie und Geowissenschaften > Fachgruppe Geowissenschaften > Professur Umweltgeochemie
Fakultäten > Fakultät für Biologie, Chemie und Geowissenschaften > Fachgruppe Geowissenschaften > Professur Umweltgeochemie > Professur Umweltgeochemie - Univ.-Prof. Dr. Britta Planer-Friedrich
Fakultäten
Fakultäten > Fakultät für Biologie, Chemie und Geowissenschaften
Fakultäten > Fakultät für Biologie, Chemie und Geowissenschaften > Fachgruppe Geowissenschaften
Titel an der UBT entstanden: Ja
Themengebiete aus DDC: 500 Naturwissenschaften und Mathematik
Eingestellt am: 03 Mai 2015 08:56
Letzte Änderung: 16 Apr 2018 12:17
URI: https://eref.uni-bayreuth.de/id/eprint/12614