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- Title
Water reclamation during drinking water treatments using polyamide nanofiltration membranes on a pilot scale.
- Authors
Kukučka, Miroslav; Kukučka, Nikoleta; Habuda-Stanić, Mirna
- Abstract
The aim of this study was to investigate the performances of polyamide nanofiltration membranes during water reclamation. The study was conducted using nanofiltration concentrates obtained from two different nanofiltration drinking water treatment plants placed in the northern part of Serbia (Kikinda and Zrenjanin). Used nanofiltration concentrates contained high concentrations of arsenic (45 and 451 μg/L) and natural organic matter (43.1 and 224.40 mgKMnO/L). Performances of polyamide nanofiltration membranes during water reclamation were investigated under various fluxes and transmembrane pressures in order to obtain drinking water from nanofiltration concentrates and, therefore, reduce the amount of produced concentrates and minimize the waste that has to be discharged in the environment. Applied polyamide nanofiltration membranes showed better removal efficiency during water reclamation when the concentrate with higher content of arsenic and natural organic matter was used while the obtained permeates were in accordance with European regulations. This study showed that total concentrate yield can be reduced to ~5 % of the optimum flux value, in both experiments. The obtained result for concentrate yield under the optimum flux presents considerable amount of reclaimed drinking water and valuable reduced quantity of produced wastewater.
- Subjects
NANOFILTRATION; POLYAMIDES; WATER reuse; WATER treatment plants; ORGANIC compounds; DRINKING water; WATER quality
- Publication
Environmental Science & Pollution Research, 2016, Vol 23, Issue 18, p17919
- ISSN
0944-1344
- Publication type
Article
- DOI
10.1007/s11356-016-6919-3