{"id":2328,"date":"2023-12-01T00:00:10","date_gmt":"2023-12-01T00:00:10","guid":{"rendered":"https:\/\/desolination.eu\/?p=2328"},"modified":"2024-06-06T13:25:17","modified_gmt":"2024-06-06T13:25:17","slug":"modified-ceramic-membranes-for-the-treatment-of-highly-saline-mixtures-utilized-in-vacuum-membrane-distillation","status":"publish","type":"post","link":"https:\/\/desolination.eu\/fr\/modified-ceramic-membranes-for-the-treatment-of-highly-saline-mixtures-utilized-in-vacuum-membrane-distillation\/","title":{"rendered":"Modified ceramic membranes for the treatment of highly saline mixtures utilized in vacuum membrane distillation"},"content":{"rendered":"\n\n[et_pb_section fb_built=”1″ _builder_version=”4.16″ _module_preset=”default” custom_padding=”0px||3px|||” global_colors_info=”{}”][et_pb_row _builder_version=”4.16″ _module_preset=”default” width=”100%” custom_padding=”||1px|||” global_colors_info=”{}”][et_pb_column type=”4_4″ _builder_version=”4.16″ _module_preset=”default” global_colors_info=”{}”][et_pb_text _builder_version=”4.25.1″ _module_preset=”default” text_font=”–et_global_body_font|300|||||||” text_orientation=”justified” hover_enabled=”0″ global_colors_info=”{}” sticky_enabled=”0″]

Membrane Distillation<\/a> processes could enable the treatment of highly saline solutions<\/a> and facilitate minimal (MLD) or zero liquid discharge<\/a> (ZLD) applications. Ceramic membranes can be a robust alternative to polymeric membranes if they are chemically modified to exhibit hydrophobic qualities to prevent wetting, particularly for vacuum membrane distillation<\/a> (VMD). This study found that the thin top layer of asymmetrically structured ceramic membranes is robust enough for highly saline and abrasive suspensions and that TiO<\/span>2<\/sub> membranes outperform Al2<\/sub>O3<\/sub> membranes in respect to the mass transport due to their larger support pore size and lower thermal conductivity<\/a>. A maximum permeate flux<\/a> of 35\u00a0kg\/(m<\/span>2<\/sup> h) with exceptionally high rejections were measured in VMD using a saline brine with a concentration of 350\u00a0g NaCl per kg H2<\/sub>O. Furthermore, a VMD mass transfer model<\/a> was successfully adopted (based on the Dusty Gas Model) to facilitate the calculation of the mass transfer through asymmetrically structured TiO<\/span>2<\/sub> membranes. Model deficiencies such as the underestimation of polarization effects<\/a> were discussed, and correction factors integrated accordingly. This was done to establish a mass transfer modelling fundament for asymmetrical ceramic membranes used in MD that can be extended in future works and possibly serve as a tool for membrane optimization.<\/span><\/p>\n

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https:\/\/doi.org\/10.1016\/j.desal.2023.116943<\/span><\/svg><\/a><\/p>[\/et_pb_text][et_pb_button button_url=”https:\/\/www.sciencedirect.com\/science\/article\/abs\/pii\/S0011916423005751″ url_new_window=”on” button_text=”Read publication” _builder_version=”4.23″ _module_preset=”default” button_text_color=”#FFFFFF” button_border_width=”5px” custom_margin=”||1rem||false|false” global_colors_info=”{}”][\/et_pb_button][et_pb_text _builder_version=”4.23″ _module_preset=”default” text_font=”Roboto|300|||||||” global_colors_info=”{}”]

Authors<\/span>:<\/p>\n