Adsorption of microcystin onto activated carbon: A review

IF 0.8 4区工程技术 Q4 ENGINEERING, CHEMICAL Membrane Water Treatment Pub Date : 2019-11-01 DOI:10.12989/MWT.2019.10.6.405

Rita E. Ampiaw, M. Yaqub, Wontae Lee

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引用次数: 5

Abstract

Microcystins (MCs) are toxins produced by cyanobacteria causing a major environmental threat to water resources worldwide. Although several MCs have been reported in previous studies, microcystin-LR (m-LR) has been extensively studied as it is highly toxic. Among the several techniques employed for the removal of this toxin, adsorption with AC has been extensively studied. AC has gained wide attention as an effective adsorbent of m-LR due to its ubiquity, high sorption capacity, cost effectiveness and renewability. In this review, the adsorption of m-LR onto AC was evaluated using the information available in existing scientific literature. The effects of the pore volume and surface chemistry of AC on the adsorption of m-LR considering the structural and chemical properties of ACs were also discussed. Furthermore, we identified the parameters that influence adsorption, including natural organic matter (NOM), pH, and ionic strength during the m-LR adsorption process. The effect of these parameters on MCs adsorption onto AC from previous studied is compiled and highlighted. This review may provide new insights into future activated carbon-m-LR adsorption research, and broaden its application prospects.

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活性炭吸附微囊藻毒素的研究进展

微囊藻毒素(MCs)是由蓝藻产生的毒素，对全球水资源造成重大环境威胁。虽然在以前的研究中已经报道了几种MCs，但微囊藻毒素- lr (m-LR)因其剧毒而被广泛研究。在几种用于去除该毒素的技术中，活性炭吸附法已得到广泛研究。交流电由于其普遍存在、高吸附量、低成本和可再生等优点，作为一种有效的m-LR吸附剂受到了广泛的关注。在这篇综述中，利用现有的科学文献资料对m-LR在AC上的吸附进行了评价。结合活性炭的结构和化学性质，讨论了活性炭的孔体积和表面化学性质对m-LR吸附的影响。此外，我们确定了影响吸附的参数，包括m-LR吸附过程中的天然有机质(NOM)、pH和离子强度。综述了前人研究中这些参数对MCs在AC上吸附的影响。本文综述为今后活性炭-m- lr吸附研究提供了新的思路，并拓宽了其应用前景。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Membrane Water Treatment ENGINEERING, CHEMICAL-WATER RESOURCES

CiteScore

1.90

自引率

30.00%

发文量

审稿时长

>12 weeks

期刊介绍： The Membrane and Water Treatment(MWT), An International Journal, aims at opening an access to the valuable source of technical information and providing an excellent publication channel for the global community of researchers in Membrane and Water Treatment related area. Specific emphasis of the journal may include but not limited to; the engineering and scientific aspects of understanding the basic mechanisms and applying membranes for water and waste water treatment, such as transport phenomena, surface characteristics, fouling, scaling, desalination, membrane bioreactors, water reuse, and system optimization.