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首页> 外文期刊>Journal of Applied Polymer Science >Flocculation behavior of cationic pea starch prepared by the graft copolymerization of acrylamide for wastewater treatment
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Flocculation behavior of cationic pea starch prepared by the graft copolymerization of acrylamide for wastewater treatment

机译：丙烯酰胺接枝共聚制备阳离子豌豆淀粉的絮凝行为。

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摘要

To improve the flocculation efficiency of coal mine wastewater treatment, we synthesized a cationic flocculant by grafting acrylamide (AM) onto pea starch, and we performed the characterization with elemental analysis, Fourier transform infrared spectrometry, scanning electron microscopy, thermogravimetric analysis, and NMR. The effects of the synthesis conditions were also investigated, and the optimal synthesis parameters of the cationic flocculant were obtained. The mass ratio between pea starch and AM was 0.5 with a reaction temperature of 65 degrees C. The dosages of ceric ammonium nitrate and 3-chloro-2-hydroxypropyl-trimethylammonium chloride were 0.02 and 0.11 mol/L, respectively. Application experiments for wastewater treatment were carried out consequently, and the optimal dosage of cationic pea starch was 40mg/L within the pH range 6-8. Compared with other traditional flocculation products, the cationic pea starch showed the best flocculation behavior for coal mine wastewater. Therefore, the cationic pea-starch-grafted AM may be applicable as a novel flocculant in wastewater treatment and has already demonstrated outstanding features. It is bound to replace other traditional flocculants in the future. (c) 2016 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2016, 133, 43922.
机译：为了提高煤矿废水的絮凝效率，我们通过将丙烯酰胺（AM）接枝到豌豆淀粉上来合成阳离子絮凝剂，并通过元素分析，傅立叶变换红外光谱，扫描电子显微镜，热重分析和NMR进行了表征。考察了合成条件的影响，得到了阳离子絮凝剂的最佳合成参数。豌豆淀粉和AM之间的质量比为0.5，反应温度为65℃。硝酸铈铵和3-氯-2-羟丙基-三甲基氯化铵的剂量分别为0.02和0.11mol / L。进行了废水处理的应用实验，在pH 6-8范围内，阳离子豌豆淀粉的最佳用量为40mg / L。与其他传统絮凝产品相比，阳离子豌豆淀粉对煤矿废水的絮凝性能最佳。因此，阳离子豌豆淀粉接枝的AM可以用作废水处理中的新型絮凝剂，并且已经显示出突出的功能。它必将在将来取代其他传统的絮凝剂。 （c）2016 Wiley Periodicals，Inc. J. Appl。 Polym。科学2016，133，43922。

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