Efficient removal of HMs from wastewater using Fe۳O۴@microalgae nano-composition adsorption: Kinetic and isotherm
- سال انتشار: 1402
- محل انتشار: پانزدهمین کنفرانس بین المللی مکانیک، ساخت، صنایع و مهندسی عمران
- کد COI اختصاصی: MMICONF15_016
- زبان مقاله: فارسی
- تعداد مشاهده: 263
نویسندگان
Department of Chemical Engineering, Babol University of Technology, Babol, Iran
Department of Civil and Environmental Engineering, Seoul National University, ۱۵۱-۷۴۴, Seoul, South Korea
Department of Civil and Environmental Engineering, Babol Noshirvani University of Technology, Babol, Iran
Department of Biology, University of Mazandaran, Babolsar, Iran
Department of Chemical Engineering, Babol Noshirvani University of Technology, Babol, Iran
چکیده
Heavy metals (HMs) removal from wastewater is one of the main bottleneck of wastewater treatment (WWT) process. In this study, we synthesized a novel adsorbent by integrating Fe۳O۴ magnetic nanoparticle (NPs) and dried microalgae biomass as natural adsorbent, named Fe۳O۴@micrpalge to efficiently adsorb lead (Pb) from polluted WW. The performance of Fe۳O۴@micrpalge was compared with microalgae alone to identify the effect of NPs. Moreover, the impact of operational parameters including Fe۳O۴@micrpalge dosage, contact time, Pb initial concentration and pH on adsorption performance were investigated. According to the results, microalgae dried biomass without NP could only remove ۷۲% of Pb under the optimal conditions. While, the maximum Pb removal efficiencies of ۸۴% was obtained for Pb, under the optimal conditions of Fe۳O۴@micrpalge dosage: ۲۰ mg, HMs initial concentrations: ۱۰۰ mg/L, pH: ۱۱ and contact time ۶۰ min. The adsorption kinetic and isotherm followed the pseudo-first-order and Freundlich, respectively indicating that both chemisorption and physisorption were involved in Pb adsorption process of Fe۳O۴@micrpalge. Our finding suggest a sustainable and promising approach for efficient removal of HMs from contaminated wastewater.کلیدواژه ها
Fe۳O۴@microalge, Nanoparticles, Adsorption, Heavy metals, Wastewater treatmentاطلاعات بیشتر در مورد COI
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