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首页> 外文期刊>Journal of Chemical Technology & Biotechnology >Enhancement of anti-fouling properties during the treatment of paper mill effluent using functionalized zeolite and activated carbon nanomaterials based ultrafiltration
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Enhancement of anti-fouling properties during the treatment of paper mill effluent using functionalized zeolite and activated carbon nanomaterials based ultrafiltration

机译:采用官能化沸石及活性炭纳米材料的超滤治疗造纸厂流出物期间的防污性能的增强

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BACKGROUND Treatment of paper mill effluent is crucial owing to its high organic constituents which necessitate the use of efficient membranes having greater anti-fouling ability. In this study, functionalized zeolite and activated carbon incorporated polyethersulfone (PES) membranes were developed to maximize the fouling resistance and rejection efficiency thereby to achieve greater reduction levels of chemical oxygen demand (COD), biological oxygen demand (BOD) and total dissolved solids (TDS) in the effluent. RESULTS The synthesized inorganic modifiers such as functionalized copper (Cu)-zeolite, iron (Fe)-zeolite and calcium alginate functionalized activated carbon were incorporated into PES in distinct wt% of 0.25, 0.5, 0.75 and 1. The high pure water flux of 38.9 L m(-2) h(-1) was observed with 0.25 wt% of Cu-zeolite when compared to 24.3 L m(-2) h(-1) of virgin PES. The addition of 0.5 wt% of functionalized activated carbon resulted in reduction levels of about 90.2%, 92% and 80% of COD, BOD and TDS respectively. CONCLUSIONS Facile functionalization of zeolite and activated carbon using metal salts and calcium alginate was achieved. Functionalized Cu-zeolite imparted increased hydrophilicity, anti-fouling property and increased pore size compared to that of Fe-zeolite and functionalized activated carbon. (c) 2019 Society of Chemical Industry
机译:由于其高有机成分,因此造纸厂的背景处理造纸磨流出物至关重要,这需要使用具有更大的抗结垢能力的有效膜。在该研究中,开发了官能化沸石和活性炭掺入的聚醚砜(PES)膜,以使污垢抗性和排斥效率最大化,从而实现更大的化学需氧量(COD),生物需氧量(BOD)和总溶解固体水平TDS)在流出物中。结果合成的无机改性剂如官能化铜(Cu) - 沸石,铁(Fe)-Zheolite和藻酸钙官能化活性炭被掺入PES中,不同于0.25,0.5,0.75和1.的高纯净水通量与50.3L m(-2)H(-1)的维尔京PE相比,用0.25wt%的Cu-沸石观察38.9Lm(-2)H(-1)。添加0.5wt%的官能化活性炭,分别减少约90.2%,92%和80%的COD,BOD和TDS。结论达到了使用金属盐和藻酸钙的沸石和活性炭的体官能化。与Fe-沸石和官能化活性炭相比,官能化Cu-沸石赋予增加的亲水性,防污性和孔径增加。 (c)2019年化学工业协会

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