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Life cycle and human health risk assessments as tools for decision making in the design and implementation of nanofiltration in drinking water treatment plants
Ribera, G.; Clarens, F.; Martínez-Lladó, X.; Jubany, I.; Martí, V.; Rovira, M. (2014). Life cycle and human health risk assessments as tools for decision making in the design and implementation of nanofiltration in drinking water treatment plants. Sci. Total Environ. 466-467: 377-386. https://dx.doi.org/10.1016/j.scitotenv.2013.06.085
In: Science of the Total Environment. Elsevier: Amsterdam. ISSN 0048-9697; e-ISSN 1879-1026, meer
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| Author keywords |
Drinking water; Trihalomethanes; Nanofiltration; Environmental impacts; Carcinogenic risk |
| Auteurs | | Top |
- Ribera, G.
- Clarens, F.
- Martínez-Lladó, X.
|
- Jubany, I.
- Martí, V.
- Rovira, M.
|
|
| Abstract |
A combined methodology using life cycle assessment (LCA) and human health risk assessment (HHR) is proposed in order to select the percentage of water in drinking water treatment plants (DWTP) that should be nanofiltered (NF). The methodological approach presented here takes into account environmental and social benefit criteria evaluating the implementation of new processes into conventional ones. The inclusion of NF process improves drinking water quality, reduces HHR but, in turn, increases environmental impacts as a result of energy and material demand. Results from this study lead to balance the increase of the impact in various environmental categories with the reduction in human health risk as a consequence of the respective drinking water production and consumption. From an environmental point of view, the inclusion of NF and recommended pretreatments to produce 43% of the final drinking water means that the environmental impact is nearly doubled in comparison with conventional plant in impact categories severely related with electricity production, like climate change. On the other hand, the carcinogenic risk (HHR) associated to trihalomethane formation potential (THMFP) decreases with the increase in NF percentage use. Results show a reduction of one order of magnitude for the carcinogenic risk index when 100% of drinking water is produced by NF. |
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