{"id":14483,"date":"2019-03-10T16:57:52","date_gmt":"2019-03-10T08:57:52","guid":{"rendered":"https:\/\/amtec.utm.my\/?p=14483"},"modified":"2019-03-10T17:06:58","modified_gmt":"2019-03-10T09:06:58","slug":"removal-of-as-from-water-using-green-silica-based-ceramic-hollow-fibre-membranes-via-direct-contact-membrane-distillation","status":"publish","type":"post","link":"https:\/\/research.utm.my\/amtec\/removal-of-as-from-water-using-green-silica-based-ceramic-hollow-fibre-membranes-via-direct-contact-membrane-distillation\/","title":{"rendered":"Removal Of As From Water Using Green Silica-Based Ceramic Hollow Fibre Membranes Via Direct Contact Membrane Distillation"},"content":{"rendered":"<p>Siti Khadijah Hubadillah, Mohd Hafiz Dzarfan Othman, Siti Hamimah Sheikh Abdul Kadir, Mohd Riduan Jamalludin, Zawati Harun, Mohd Haiqal Abd Aziz, Mukhlis A Rahman, Juhana Jaafar, Mikihiro Nomura, Sawao Honda, Yuji Iwamoto, Hamzah Fansuri<\/p>\n<p><span id=\"top\">Arsenite [As(<span class=\"small_caps\">III<\/span>)] and arsenate [As(<span class=\"small_caps\">V<\/span>)] removal by direct contact membrane distillation (DCMD) using novel hydrophobic green, silica-based ceramic hollow fibre membranes derived from agricultural rice husk was investigated in this work. The green ceramic hollow fibre membranes were prepared from amorphous (ASHFM) and crystalline (CSHFM) silica-based rice husk ash and modified to be hydrophobic <span class=\"italic\">via<\/span> immersion fluoroalkylsilane (FAS) grafting of 1<span class=\"italic\">H<\/span>,1<span class=\"italic\">H<\/span>,2<span class=\"italic\">H<\/span>,2<span class=\"italic\">H<\/span>-perfluorodecyltriethoxysilane. Superhydrophobic contact angle values up to 157\u00b0 and 161\u00b0 were obtained for ASHFM and CSHFM, respectively. Remarkably, the membrane surface morphology mimicked a look-alike lotus-leaf structure with decrement in pore size after grafting <span class=\"italic\">via<\/span> the silane agent for both membranes. The effect of arsenic pH (3\u201311), arsenic concentration (1\u20131000 ppm) and feed temperature (50\u201380 \u00b0C) were studied and it was found that feed temperature had a significant effect on the permeate flux. The hydrophobic CSHFM, with a flux of 50.4 kg m<small><sup>\u22122<\/sup><\/small> h<small><sup>\u22121<\/sup><\/small> for As(<span class=\"small_caps\">III<\/span>) and 51.3 kg m<small><sup>\u22122<\/sup><\/small> h<small><sup>\u22121<\/sup><\/small> for As(<span class=\"small_caps\">V<\/span>), was found to be the best of the tested membranes. In fact, this membrane can reject arsenic to the maximum contaminant level (MCL) limit of 10 ppb under any conditions, and no swelling mechanism of the membranes was observed after testing for 4 hours.<\/span><\/p>\n<p>&nbsp;<\/p>\n<p><a href=\"https:\/\/pubs.rsc.org\/en\/content\/articlehtml\/2019\/ra\/c8ra08143c\">https:\/\/pubs.rsc.org\/en\/content\/articlehtml\/2019\/ra\/c8ra08143c<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Siti Khadijah Hubadillah, Mohd Hafiz Dzarfan Othman, Siti Hamimah Sheikh Abdul Kadir, Mohd Riduan Jamalludin, Zawati Harun, Mohd Haiqal Abd Aziz, Mukhlis A Rahman, Juhana Jaafar, Mikihiro Nomura, Sawao Honda, Yuji Iwamoto, Hamzah Fansuri Arsenite [As(III)] and arsenate [As(V)] removal by direct contact membrane distillation (DCMD) using novel hydrophobic green, silica-based ceramic hollow fibre membranes [&hellip;]<\/p>\n","protected":false},"author":11253,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_et_pb_use_builder":"","_et_pb_old_content":"","_et_gb_content_width":"","footnotes":""},"categories":[92],"tags":[94,95,93],"class_list":["post-14483","post","type-post","status-publish","format-standard","hentry","category-article","tag-ceramic","tag-membrane","tag-silica"],"_links":{"self":[{"href":"https:\/\/research.utm.my\/amtec\/wp-json\/wp\/v2\/posts\/14483","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/research.utm.my\/amtec\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/research.utm.my\/amtec\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/research.utm.my\/amtec\/wp-json\/wp\/v2\/users\/11253"}],"replies":[{"embeddable":true,"href":"https:\/\/research.utm.my\/amtec\/wp-json\/wp\/v2\/comments?post=14483"}],"version-history":[{"count":3,"href":"https:\/\/research.utm.my\/amtec\/wp-json\/wp\/v2\/posts\/14483\/revisions"}],"predecessor-version":[{"id":14486,"href":"https:\/\/research.utm.my\/amtec\/wp-json\/wp\/v2\/posts\/14483\/revisions\/14486"}],"wp:attachment":[{"href":"https:\/\/research.utm.my\/amtec\/wp-json\/wp\/v2\/media?parent=14483"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/research.utm.my\/amtec\/wp-json\/wp\/v2\/categories?post=14483"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/research.utm.my\/amtec\/wp-json\/wp\/v2\/tags?post=14483"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}