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首页> 外文期刊>Journal of Residuals Science & Technology >Synthesis and Mechanism of Flocculating-Decolorizing Agent PAD used for Polymer-Sulphonated Drilling Wastewater
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Synthesis and Mechanism of Flocculating-Decolorizing Agent PAD used for Polymer-Sulphonated Drilling Wastewater

机译：聚合物磺化钻井废水用絮凝脱色剂PAD的合成及机理

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摘要

Cationic polyacrylamide (PAD) is synthesized and used as decolorizing agent for polymer-sulphonated drilling wastewater. Compared with other widely used decolorizing agents the wastewater processed by PAD results in a higher decolorization speed, lower chromaticity, and less flocs. It also adapts to polymer-sulphonated drilling wastewater with different salinity. Used for on-site wastewater, it is both efficient and pleietrepie. It reduced the chromaticity to lower than 50 times while the COD is reduced to 100 mg/L and even much lower than 100 mg/L. Meanwhile, the suspended solids content is lower than 40 mg/L and the flocs content is very low. Therefore, the processing results may greatly help the following treatment. Fourier transform infrared spectroscopy (FTIR) and a scanning electron microscope (SEM) are used to analyze interaction between functional groups of PAD with the polymer-sulfonated drilling wastewater and decolorizing mechanism. The decolorizing mechanism is mainly a union of ionic bonds, charge neutralization, and adsorption bridging between PAD and polymer-sulphonated additives.
机译：合成了阳离子聚丙烯酰胺（PAD），并将其用作聚合物磺化钻井废水的脱色剂。与其他广泛使用的脱色剂相比，PAD处理的废水可实现更高的脱色速度，更低的色度和更少的絮凝物。它也适用于不同盐度的聚合物磺化钻井废水。用于现场废水，既高效又多。它将色度降低到低于50倍，而COD降低到100 mg / L，甚至远远低于100 mg / L。同时，悬浮固体含量低于40 mg / L，絮凝物含量非常低。因此，处理结果可以极大地帮助后续处理。傅里叶变换红外光谱（FTIR）和扫描电子显微镜（SEM）用于分析PAD官能团与聚合物磺化钻井废水之间的相互作用以及脱色机理。脱色机理主要是离子键，电荷中和和PAD与聚合物磺化添加剂之间的吸附桥联的结合。

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