Application of powdered activated carbon for the adsorption of cylindrospermopsin and microcystin toxins from drinking water supplies
Application of powdered activated carbon for the adsorption of cylindrospermopsin and microcystin toxins from drinking water supplies
复制标题
DOI：
10.1016/j.watres.2011.03.014
复制
发表时间：
2011-04-01
期刊：
影响因子：
12.8
通讯作者：
Newcombe, Gayle
中科院分区：
文献类型：
--
作者：
Ho, Lionel;Lambling, Paul;Newcombe, Gayle
微囊藻毒素（CYN）和微囊藻毒素是由饮用水中的蓝藻产生的两种强效毒素。本研究探讨了应用粉末活性炭（PAC）去除这些毒素的条件下，可以在水处理厂的经验。评价了两种不同的PAC从各种饮用水供应中去除CYN和四种微囊藻毒素变体的能力。PAC对天然有机物质的去除也通过测量溶解的有机碳的水平和UV吸光度（在254 nm处）来确定。PAC有效地去除了CYN和微囊藻毒素从每个沃茨的研究，与PAC之一显示出更有效，可能是由于其较小的颗粒直径。使用PAC接触时间为30，45和60分钟的毒素去除没有差异。此外，水质对毒素去除的影响是最小的。微囊藻毒素变体的吸附顺序为：MCRR > MCYR > MCLR > MCLA。发现CYN的吸附类似于MCRR。(C)2011爱思唯尔有限公司版权所有。
Cylindrospermopsin (CYN) and microcystin are two potent toxins that can be produced by cyanobacteria in drinking water supplies. This study investigated the application of powdered activated carbon (PAC) for the removal of these toxins under conditions that could be experienced in a water treatment plant. Two different PACs were evaluated for their ability to remove CYN and four microcystin variants from various drinking water supplies. The removal of natural organic material by the PACs was also determined by measuring the levels of dissolved organic carbon and UV absorbance (at 254 nm). The PACs effectively removed CYN and the microcystins from each of the waters studied, with one of the PACs shown to be more effective, possibly due to its smaller particle diameter. No difference in removal of the toxins was observed using PAC contact times of 30, 45 and 60 min. Furthermore, the effect of water quality on the removal of the toxins was minimal. The microcystin variants were adsorbed in the order: MCRR > MCYR > MCLR > MCLA. CYN was found to be adsorbed similarly to MCRR. (C) 2011 Elsevier Ltd. All rights reserved.