Publication Date:
2019
Description:
〈p〉Publication date: Available online 1 November 2019〈/p〉
〈p〉〈b〉Source:〈/b〉 Water Resources and Industry〈/p〉
〈p〉Author(s): Niels van Linden, Ran Shang, Georg Stockinger, Bas Heijman, Henri Spanjers〈/p〉
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〈h5〉Abstract〈/h5〉
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〈p〉The application of zero liquid discharge (ZLD) results in the generation of solid residual streams, which are often not fit for reuse. In this study, we assessed the separation of natural organic matter (NOM) and sodium chloride (NaCl) by nanofiltration (NF), electrodialysis (ED) and ion exchange (IEX) in the reverse osmosis brine and by SALEX in the generated mixed solids from a full-scale ZLD wastewater treatment plant.〈/p〉
〈p〉The NaCl recovery by NF, ED and IEX ranged 69–99%. The rejection of NOM by NF, ED and IEX ranged 18–19%, 43–65% and 53–76%, respectively. Finally, the recovery of NaCl by SALEX ranged 52–99%, while the rejection of NOM ranged 59–80%. The results showed that NOM and NaCl can be separated both in reverse osmosis brine and mixed solids, opening opportunities for recovery of reusable salt from brines in ZLD.〈/p〉
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〈h5〉Graphical abstract〈/h5〉
〈div〉〈p〉〈figure〉〈img src="https://ars.els-cdn.com/content/image/1-s2.0-S2212371719300666-fx1.jpg" width="399" alt="Image 1" title="Image 1"〉〈/figure〉〈/p〉〈/div〉
Electronic ISSN:
2212-3717
Topics:
Architecture, Civil Engineering, Surveying
,
Geography
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Process Engineering, Biotechnology, Nutrition Technology
