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Experimental Investigation on Saline Water Purification Using Reverse Osmosis by a Novus Biomimetic Membrane

Journal of Bionic Engineering 2022年第3期19卷 816-836页

作者： Yasin Edmam Iman Nadim Ahmed Sayed Abul Monsur Anachh Kazi Abu Manjur Department of Civil Engineering Mymensingh Engineering CollegeUniversity of DhakaMymensingh2208Bangladesh Department of Civil Engineering Dhaka University of Engineering&TechnologyGazipur1707Bangladesh

A substantial amount of Earth’s water is inadequate for human consumption while local demand is outstripping traditional supplies in many world regions;thereby,brackish and seawater treatment has become a *** investigation suggested a complete design of an RO-based desalination filter with a multilayer biomimetic *** study demonstrated a comprehensive method for experimentally fabricating a proprietary biomaterial-based multilayer nano-porous *** analysis revealed that Silk nano-Fibril(SNF)and Hydroxyapatite(HAP)extracted from Bombyx Mori silkworm cocoons may be utilized to manufacture highly methodical multilayer membranes by incorporating protein-self-assembly and ***’s aquaporin layer containing lipid-bilayers has rapid water permeability and high efficacy at eliminating salt ions and *** 4µm thick SNF/HAP membrane showed a considerable decrease in salinity,with a salt rejection of 93.33%.The proposed membrane had a saline water permeability of 6.58 LMH/bar,almost 61.09%higher than conventional TFC *** barrier and spiral-wrapped filter architecture of the membrane enable low fouling and self-cleaning *** schematic filter design and biomimetic fabrication of the SNF/HAP membrane have formulated a conceptual framework that might direct to the broad-scale,low-cost RO water purification filters,increasing the efficiency of water desalination and boosting the effectiveness of water treatment technologies to reduce potable water scarcity.

关键词： Desalination applications Reverse osmosis membrane architecture Biomimetic synthesis nano-filtration Water purification

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Technological development

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China Rare Earth Information 2019年第8期25卷 7-7,F0004页

Florida startup recovers rare earths from waste Precision Periodic, a company based at the University of Central Florida's Business Incubator Program, was successful in extracting and separating rare earth elements ou... 详细信息

关键词： Technological development Florida startup a reusable nano-filtration system

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Particle size distribution of the organic matters in the treated leachate using aged-refuse-bioreactor

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Journal of Environmental Science and Engineering 2009年第7期3卷 18-22页

作者： SUN Ying-jie WANG Hua-wei ZHAO You-cai School of Environmental ＆ Municipal Engineering Qingdao Technological University Qingdao 266033 China The State Key Laboratory of Pollution Control and Resource Reuse Tongji University Shanghai 200092 China

Micro-filtration membrane （1.2 μm）, hyper-filtration membrane （0.45 μm） and nano-filtration membrane （1000 Dalton） were used to characterize the particle size distribution of the organic matters in effluent leachate treated by the aged-refuse-bioreactor（ARB） installed at Laogang Refuse Landfill, Shanghai. The results showed that the particle size distribution of the treated fresh and aged leachate using the ARB were quite consistent. The organic matter with particle size below 1000 Dalton accounted for about 90%, balanced with the suspended （〉1.2 μm） and colloidal （1000 Dalton-l.2μm） matters. Hence, it is proposed that coagulation, nano-filtration and electrically chemical oxidation may be not applicable for the advanced treatment for the effluents to reach the discharge standard limit value defined in Chinese national Standard for Pollution Control on the Landfill Site of Municipal Solid Wastes （GB16889-2008）, CODCr〈100 mg/L. Aged refuse bioreactor combined reverse osmosis was suggested as an economically and technically feasible technology to treat sanitary landfill leachate.

关键词： landfill leachate particle size distribution nano-filtration aged refuse bioreactor: reverse osmosis

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