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Journal AWWA - Using Coagulation, Flocculation, and Settling to Remove Toxic Cyanobacteria AWWA杂志-使用混凝、絮凝和沉淀去除有毒蓝藻
发布日期: 2001-02-01
蓝藻(蓝绿藻)会产生毒素、味道和气味,从而 严重影响水质。去除蓝藻细胞 细胞损伤可显著降低味觉、气味和气味的浓度 处理过的水中存在有毒的细胞代谢物。培养的蓝藻, 将肝毒性铜绿微囊藻与水库水混合进行模拟 水华期间进入处理厂的水。台架罐试验 装置(絮凝)和一个全尺寸的中试工厂 (絮凝沉淀过滤)额定值为600 mL/min,用于评估 常规水处理工艺在去除污染物方面的有效性 蓝藻细胞。使用jar试验装置通过絮凝去除细胞 以水处理实践中使用的浓度添加硫酸铝 从70%到83%不等。中试结果表明: 99.9%的细胞被去除。更重要的是,不需要额外发布 在成品水中发现了微囊藻毒素。包括37个参考文献、表格、图表。
Cyanobacteria (blue-green algae) produce toxins and tastes and odors that can significantly impair water quality. The removal of cyanobacterial cells without cell damage could significantly reduce the concentration of tastes, odors, and toxic cell metabolites present in treated water. Cultured cyanobacterium, hepatotoxic Microcystis aeruginosa, was mixed with reservoir water to simulate water entering a treatment plant during an algal bloom. A bench-top jar-test apparatus (flocculation) and a full-scale pilot plant (flocculation-sedimentation-filtration) rated at 600 mL/min were used to evaluate the effectiveness of conventional water treatment processes in removing cyanobacterial cells. Removal of cells by flocculation using a jar-test apparatus with aluminum sulfate dosed at concentrations used in water treatment practice varied between 70 and 83%. Results obtained from the pilot experiment indicated 99.9% of the cells were removed. More important, no additional release of microcystin (toxin) was found in the finished water. Includes 37 references, tables, figures.
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发布单位或类别: 美国-美国给水工程协会
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