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高取代度陽離子變性淀粉絮凝劑制備與應(yīng)用
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Preparation and Application of Cationic Starch Flocculant with High Substituted Degree
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    摘要:

    以馬鈴薯淀粉為原料，3-氯-2-羥丙基三甲基氯化銨為陽離子醚化劑，采用預(yù)干燥干法制備出取代度為0.3903的高取代度陽離子變性淀粉絮凝劑，并將其與聚合硫酸鐵復(fù)配使用。通過正交試驗優(yōu)化出最佳絮凝工藝：陽離子淀粉質(zhì)量分數(shù)為0.15%、聚合硫酸鐵質(zhì)量分數(shù)為0.15%，廢液初始pH值為7.0。經(jīng)過絮凝處理的馬鈴薯淀粉生產(chǎn)廢液的化學(xué)需氧量去除率(COD)為64.31%。

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    The quaternary amino groups containing cationic starch with the degree of substitution 0.3903 was prepared via the reaction of potato starch with 3-chloro-2-hydroxypropyl-trimethyl ammonium chloride using predrying dry process. Then the cationic starch (CS) and poly ferric sulfate (PFS) would be used to treat potato starch waste water. And the cleaning efficiency of the chemical oxygen demand (COD) in the wastewater was studied by changing the experiment conditions. Though the orthogonal test, the optimal conditions were as follows: CS addition 0.15%, PFS addition 0.15%, initial reaction pH 7.0. The removal rate of COD was 64.31%.

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李樹君,謝 安,林亞玲.高取代度陽離子變性淀粉絮凝劑制備與應(yīng)用[J].農(nóng)業(yè)機械學(xué)報,2011,42(2):134-137. Li Shujun, Xie An, Lin Yaling. Preparation and Application of Cationic Starch Flocculant with High Substituted Degree[J]. Transactions of the Chinese Society for Agricultural Machinery,2011,42(2):134-137.

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