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Reverse Osmosis Separation of NaCl Using a Bentonite Membrane
Whitworth T.M.a, Siagian U.W.b, Lee R.
a Dept. of Geol. and Petrol. Eng., University of Missouri, United States
b Teknik Perminyakan (Petr. Eng.) ITB, Pusat Penelitian Energy ITB, Energy Research Center, Indonesia
c Petroleum Recovery Research Center, New Mexico Tech., United States
[vc_row][vc_column][vc_row_inner][vc_column_inner][vc_separator css=”.vc_custom_1624529070653{padding-top: 30px !important;padding-bottom: 30px !important;}”][/vc_column_inner][/vc_row_inner][vc_row_inner layout=”boxed”][vc_column_inner width=”3/4″ css=”.vc_custom_1624695412187{border-right-width: 1px !important;border-right-color: #dddddd !important;border-right-style: solid !important;border-radius: 1px !important;}”][vc_empty_space][megatron_heading title=”Abstract” size=”size-sm” text_align=”text-left”][vc_column_text]The results of 11 experiments using compacted bentonite membranes in a cross-flow experimental cell equipped with a piston to maintain clay membrane compaction are reported. Due to dispersion in the porous frit, solute concentration buildup adjacent to the membrane was not a problem at the flow rates used in these experiments (6 to 126 mL/hr). The solute rejection efficiency of the bentonite membrane decreased with increasing solution concentration. The rejection efficiency for the 0.5-mm thick membrane ranged from 68% of Cl- for 100-mM (3545 ppm) NaCl solution to 13% of Cl – for 2300-mM (81,542 ppm) NaCl solution. The membrane exhibited stable solute rejection.[/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”Author keywords” size=”size-sm” text_align=”text-left”][vc_column_text]Solute rejection[/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”Indexed keywords” size=”size-sm” text_align=”text-left”][vc_column_text]Brine,Clay,Membrane,Reverse Osmosis[/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”Funding details” size=”size-sm” text_align=”text-left”][vc_column_text]The authors would like to acknowledge the hard work of Bing Ye and Tian Fan in the laboratory. Chemical analyses were performed by the New Mexico Bureau of Geology and Mineral Resources Chemistry Laboratory. The experimental apparatus was constructed in the New Mexico Tech R&ED machine shop. Thanks are also due Norton Euart for his valuable assistance on numerous matters. This paper was prepared with the support of the U. S. Department of Energy, under award No. DE-FC26-00BC15326. However, any opinions, findings, conclusions, or recommendations expressed herein are those of the authors and do not necessarily reflect the views of DOE.[/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”DOI” size=”size-sm” text_align=”text-left”][vc_column_text]https://doi.org/10.1081/SS-120024716[/vc_column_text][/vc_column_inner][vc_column_inner width=”1/4″][vc_column_text]Widget Plumx[/vc_column_text][/vc_column_inner][/vc_row_inner][/vc_column][/vc_row][vc_row][vc_column][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][/vc_column][/vc_row]