TY - JOUR
T1 - Arsenic in Argentina
T2 - Technologies for arsenic removal from groundwater sources, investment costs and waste management practices
AU - Litter, Marta I.
AU - Ingallinella, Ana M.
AU - Olmos, Valentina
AU - Savio, Marianela
AU - Difeo, Gonzalo
AU - Botto, Lía
AU - Torres, Elsa Mónica Farfán
AU - Taylor, Sergio
AU - Frangie, Sofía
AU - Herkovits, Jorge
AU - Schalamuk, Isidoro
AU - González, María José
AU - Berardozzi, Eliana
AU - García Einschlag, Fernando S.
AU - Bhattacharya, Prosun
AU - Ahmad, Arslan
PY - 2019/11/10
Y1 - 2019/11/10
N2 - An overview about the presence of arsenic (As) in groundwaters of Argentina, made by a transdisciplinary group of experts is presented. In this second part, the conventional and emerging technologies for As removal, management of wastes, and the initial investment costs of the proposed technologies, with emphasis on developments of local groups are described. Successful examples of real application of conventional and emerging technologies for As removal in waters for human consumption, for medium, small and rural and periurban communities are reported. In the country, the two most applied technologies for arsenic removal at a real scale are reverse osmosis and coagulation-adsorption-filtration processes using iron or aluminum salts or polyelectrolytes as coagulants. A decision tree to evaluate the possible technologies to be applied, based on the population size, the quality of the water and its intended use, is presented, including preliminary and indicative investment costs. Finally, a section discussing the treatment and final disposal of the liquid, semiliquid and solid wastes, generated by the application of the most used technologies, is included. Conclusions and recommendations, especially for isolated rural and periurban regions, have been added.
AB - An overview about the presence of arsenic (As) in groundwaters of Argentina, made by a transdisciplinary group of experts is presented. In this second part, the conventional and emerging technologies for As removal, management of wastes, and the initial investment costs of the proposed technologies, with emphasis on developments of local groups are described. Successful examples of real application of conventional and emerging technologies for As removal in waters for human consumption, for medium, small and rural and periurban communities are reported. In the country, the two most applied technologies for arsenic removal at a real scale are reverse osmosis and coagulation-adsorption-filtration processes using iron or aluminum salts or polyelectrolytes as coagulants. A decision tree to evaluate the possible technologies to be applied, based on the population size, the quality of the water and its intended use, is presented, including preliminary and indicative investment costs. Finally, a section discussing the treatment and final disposal of the liquid, semiliquid and solid wastes, generated by the application of the most used technologies, is included. Conclusions and recommendations, especially for isolated rural and periurban regions, have been added.
KW - Argentina
KW - Arsenic
KW - Drinking water
KW - Mitigation
KW - Removal technologies
U2 - 10.1016/j.scitotenv.2019.06.358
DO - 10.1016/j.scitotenv.2019.06.358
M3 - Article
AN - SCOPUS:85068586228
SN - 0048-9697
VL - 690
SP - 778
EP - 789
JO - Science of the Total Environment
JF - Science of the Total Environment
ER -