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首页> 外文期刊>Journal of Environmental Science and Health >Simple and practical on-site treatment of high microcystin levels in water using polypropylene plastic
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Simple and practical on-site treatment of high microcystin levels in water using polypropylene plastic

机译：使用聚丙烯塑料对水中高微囊藻毒素水平进行简单，实用的现场处理

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Microcystin (MC) is a hepatotoxin produced by various cyanobacteria during harmful algal blooms (HAB's) in freshwater environments. Advanced treatment methods can remove MC from drinking water, but are costly and do not address recreational water exposure and ecosystem health concerns. Here we investigate the feasibility of utilizing plastics as a MC-adsorbing material, for use in water resources used for recreation, agriculture, aquaculture and drinking water. Water containing 20 mu g/L MC-LR was exposed to polypropylene (PP) plastic for a six-day period at varying temperatures (22, 37, 65 degrees C). Water samples were then collected at 0, 1, 2, and 6hour-intervals to examine short term treatment feasibility. Samples were also taken at 24hours, 3days, and 6days to determine long-term treatment effectiveness. MC concentrations were analyzed using ELISA. Results showed a maximal reduction of nearly 70% of MC-LR after a 6-day treatment with PP at 65 degrees C. Temperature enhanced MC-LR reduction over a 6-day period: 70% reduction at 65 degrees C; 50% at 37 degrees C; 38% at 22 degrees C. We propose an inexpensive intervention strategy which can be deployed rapidly on-site in various source waters, including in resource-limited settings. During the high peak of HAB season, the strategy can be applied in source waters, alleviating water treatment burden for treatment plants, lowering treatment costs and reducing chemical usage.
机译：微囊藻毒素（MC）是在淡水环境中有害藻华（HAB）期间，各种蓝细菌产生的肝毒素。先进的处理方法可以从饮用水中去除MC，但成本高昂，并且无法解决娱乐用水和生态系统健康的问题。在这里，我们研究了将塑料用作MC吸附材料的可行性，该材料可用于娱乐，农业，水产养殖和饮用水中的水资源。将含有20μg / L MC-LR的水在不同温度（22、37、65摄氏度）下暴露于聚丙烯（PP）塑料中六天。然后以0、1、2和6小时的间隔收集水样，以检查短期处理的可行性。还分别在24小时，3天和6天取样，以确定长期治疗效果。使用ELISA分析MC浓度。结果显示，在65摄氏度下用PP处理6天后，MC-LR的最大减少量接近70％。温度在6天内增加了MC-LR的减少量：65摄氏度下减少了70％； 37°C时为50％； 38％在22摄氏度。我们提出了一种廉价的干预策略，该策略可以在各种水源现场快速部署，包括在资源有限的环境中。在HAB季节高峰期，该策略可用于水源，减轻处理厂的水处理负担，降低处理成本并减少化学药品的使用。

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