Optimizing the Nanofiltration Operating Conditions os Post Treatment Step in the Groundwater Denitrification Process
Title | Optimizing the Nanofiltration Operating Conditions os Post Treatment Step in the Groundwater Denitrification Process |
Publication Type | Journal Article |
Year of Publication | 2014 |
Authors | Fuqaha A, Friedl A |
Journal | Environmental Engineering and Management Journal |
Volume | 13 |
Issue | 9 |
Pagination | 2417-2424 |
Keywords | bioparticles, denitrification, Membrane, normal flux, particles size distribution |
Abstract | Two types of nanofiltration membranes had been used to study the influence of cross flow velocity on the membrane filtration of denitrification effluent (NF270 and NF90). Filtration had been conducted at constant transmembrane pressure of 5 bar and variable cross flow velocity (0.03, 0.06, 0.15 and 0.39 ms-1). The obtained normal flux was 0.47, 0.58, 0.59 and 0.77for NF270 membranes and 0.35, 0.38, 0.41 and 0.39 for NF90 membranes, the increase in cross flow velocity had enhanced flux performance of NF270 membranes more than NF90. The structure of the accumulated particles on the membrane surface had |
URL | http://www.eemj.icpm.tuiasi.ro/pdfs/vol13/no9/full/37_322_Fuqaha_14.pdf |