Academic Journal
Valorization of drinking water treatment residuals-based granules: a techno-economic analysis for pollutant control.
| Τίτλος: | Valorization of drinking water treatment residuals-based granules: a techno-economic analysis for pollutant control. |
|---|---|
| Συγγραφείς: | González CI; Departamento de Ingeniería Hidráulica y Ambiental, Pontificia Universidad Católica de Chile, Av. Vicuña Mackenna 4860, Macul, Santiago, Chile., Vega AS; Centro de Desarrollo Urbano Sustentable (CEDEUS), El Comendador 1916, Providencia, Santiago, Chile., Molinos-Senante M; Institute of Sustainable Processes, Universidad de Valladolid, C/ Mergelina 4, Valladolid, Spain; Department of Chemical Engineering and Environmental Technology, Universidad de Valladolid, C/ Mergelina 4, Valladolid, Spain., Pastén P; Departamento de Ingeniería Hidráulica y Ambiental, Pontificia Universidad Católica de Chile, Av. Vicuña Mackenna 4860, Macul, Santiago, Chile; Centro de Desarrollo Urbano Sustentable (CEDEUS), El Comendador 1916, Providencia, Santiago, Chile. Electronic address: ppasten@ing.puc.cl. |
| Πηγή: | Journal of environmental management [J Environ Manage] 2026 Aug 01; Vol. 414, pp. 130465. Date of Electronic Publication: 2026 Jul 25. |
| Τύπος έκδοσης: | Journal Article |
| Γλώσσα: | English |
| Στοιχεία περιοδικού: | Publisher: Academic Press Country of Publication: England NLM ID: 0401664 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1095-8630 (Electronic) Linking ISSN: 03014797 NLM ISO Abbreviation: J Environ Manage Subsets: MEDLINE |
| Imprint Name(s): | Original Publication: London ; New York, Academic Press. |
| Ιατρικοί όροι (MeSH): | Drinking Water* , Water Purification*, Chile ; Water Pollutants, Chemical |
| Περίληψη: | The management and disposal of drinking water treatment residuals (DWTR) cause high economic costs and negative impacts on the quality of the receiving environment. This study proposed a replicable framework for estimating DWTR production, evaluating the technical and economic implications, and assessing the potential application of DWTR granules across selected scenarios in Chile as a case study. A production of 24,500 metric tons (t) of DWTR per day was estimated for drinking water treatment plants located in the Metropolitan Region of Santiago, Chile, which collectively produce 23.6 m3s-1 of treated water. The techno-economic analysis estimated DWTR conditioning costs between 50 and 80 USDt-1, depending on the dewatering technology employed. DWTR granulation costs ranged from 90 to 140 USDt-1. Costs vary mainly due to heat treatment (calcination) and the use of raw materials (binder), which account for over 70% of operational costs. The application scenarios showed that systems based on DWTR granules could remove arsenic and copper at costs of 0.10-0.19 and 0.10 USDm-3 of treated water, respectively, and phosphorus at costs of 370-530 USDkg-1 of P removed. These costs were economically favorable and competitive compared to DWTR disposal in landfill and other sorbents and treatment technologies. The sensitivity analysis illustrated that a ±30% variation in the costs of natural gas (calcination) and binder (bentonite) modified the DWTR granulation cost by up to ±24%. The results indicated that applying DWTR granules for the removal of aqueous contaminants constitutes an economically competitive strategy for managing waste within the urban water cycle. (Copyright © 2026. Published by Elsevier Ltd.) |
| Competing Interests: | Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper. |
| Contributed Indexing: | Keywords: Drinking water treatment residuals; Granulation; Reuse; Techno-economic analysis; Urban water cycle; Valorization |
| Substance Nomenclature: | 0 (Drinking Water) 0 (Water Pollutants, Chemical) |
| Entry Date(s): | Date Created: 20260725 Date Completed: 20260804 Latest Revision: 20260804 |
| Update Code: | 20260804 |
| DOI: | 10.1016/j.jenvman.2026.130465 |
| PMID: | 42501641 |
| Βάση Δεδομένων: | MEDLINE |
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