Quality potable water it is of utmost importance for public health. Coagulation plays an important role in the chemical and physical characteristics and aesthetics of water, to separate suspended solids from water. The present work evaluates four coagulants clarification efficiency in high-turbidity waters, by comparing alternative coagulants such as Moringa Oleifera oily seed extract and recovered aluminum sulfate with commercially available aluminum sulfate. In most cases, apparent color and turbidity removal efficiencies were higher than 90%. Recovered aluminum sulfate showed a better result compared to virgin coagulant for high pHs. Moringa oleifera coagulants are advantageous for their non-impact in final pH, although the difficulty in obtaining large harvest areas precludes their application on a larger scale. Results supported discussions about advantages, disadvantages and limitations of each coagulant and demonstrated the technical feasibility of applying these to high-turbidity waters. This application promoted a superior sustainability index related to water treatment, reducing the costs in comparison with commercial coagulant acquisition, besides decreasing health risks caused by its excessive use.

中文翻译：

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高浊度水的澄清：辣木与原生和回收的硫酸铝基混凝剂的比较

优质的饮用水对公众健康至关重要。混凝在水的化学和物理特性以及美学方面起着重要作用，可将悬浮固体从水中分离出来。目前的工作通过比较替代混凝剂（如辣木油籽提取物和回收的硫酸铝）与市售硫酸铝，评估了四种混凝剂在高浊度水中的澄清效率。在大多数情况下，表观颜色和浊度去除效率高于 90%。对于高 pH 值，回收的硫酸铝显示出比原始混凝剂更好的结果。辣木混凝剂的优势在于它们对最终 pH 值无影响，尽管难以获得大的收获面积阻碍了它们的大规模应用。结果支持关于每种混凝剂的优缺点和局限性的讨论，并证明了将这些混凝剂应用于高浊度水的技术可行性。该应用提升了与水处理相关的卓越可持续性指标，与商业混凝剂采购相比，降低了成本，同时降低了因过度使用导致的健康风险。