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Optimization of the synthesis of a new coagulant from a tannin extract

机译：从单宁提取物中合成新型混凝剂的优化

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The current article studies the optimization of a new coagulant agent for water purification and wastew-ater remediation. Design of experiments is used for optimizing the production of this new tannin-based coagulant by using Acacia meamsii de Wild tannin extract, NH_4CI and formaldehyde. The effectiveness of this product was confirmed on dye-polluted wastewater and surfactant wastewater. This cationic coagulant seems to be sensitive to temperature and tannin-NH4Cl ratio (g of ammonium chloride per g of tannin extract). NH_4Cl ratio was found to be more influent than temperature and no interaction is presented between these two parameters. For each system, an optimum combination NH_4C1 ratio and temperature was found: 24.9℃ and 2gg~(-1) for dye removal and 36.4℃ and 1.87gg~(-1) for surfactant elimination. The optimal conditions were merged to produce a combined coagulant that was tested on dye, surfactant, surface river water and municipal wastewater. Predicted levels of remediation were experimentally confirmed.
机译：当前的文章研究了用于水净化和废水净化的新型凝结剂的优化。实验设计用于通过使用相思木野生单宁提取物，NH_4CI和甲醛来优化这种基于单宁的新型混凝剂的生产。证实了该产品对染料污染的废水和表面活性剂废水的有效性。这种阳离子凝结剂似乎对温度和单宁-NH4Cl比（每克单宁提取物中的氯化铵克）敏感。发现NH_4Cl比比温度影响更大，并且这两个参数之间没有相互作用。对于每种系统，找到了最佳的NH_4C1比和温度的组合：用于染料去除的24.9℃和2gg〜（-1），用于去除表面活性剂的36.4℃和1.87gg〜（-1）。合并最佳条件以产生组合的混凝剂，并在染料，表面活性剂，地表河水和市政废水上进行了测试。实验证实了预期的修复水平。

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