Synthesis and Mechanism of Flocculating-Decolorizing Agent PAD used for Polymer-Sulphonated Drilling Wastewater

Journal of Residuals Science & Technology Pub Date : 2016-04-01 DOI:10.12783/ISSN.1544-8053/13/2/7

Qingyang Li, Yan Luo, B. Hou, Zixuan Han

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引用次数: 2

Abstract

Cationic polyacrylamide (PAD) is synthesized and used as decolorizingagent for polymer-sulphonated drilling wastewater. Compared with other widely useddecolorizing agents the wastewater processed by PAD results in a higher decolorizationspeed, lower chromaticity, and less flocs. It also adapts to polymer-sulphonateddrilling wastewater with different salinity. Used for on-site wastewater, it is both efficientand pleietrepie. It reduced the chromaticity to lower than 50 times while the COD isreduced to 100 mg/L and even much lower than 100 mg/L. Meanwhile, the suspendedsolids content is lower than 40 mg/L and the flocs content is very low. Therefore, theprocessing results may greatly help the following treatment. Fourier transform infraredspectroscopy (FTIR) and a scanning electron microscope (SEM) are used to analyzeinteraction between functional groups of PAD with the polymer-sulfonated drilling wastewaterand decolorizing mechanism. The decolorizing mechanism is mainly a union ofionic bonds, charge neutralization, and adsorption bridging between PAD and polymersulphonatedadditives.

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聚合物磺化钻井废水絮凝脱色剂PAD的合成及机理研究

合成了阳离子聚丙烯酰胺(PAD)，并将其作为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处理废水具有脱色速度快、色度低、絮凝体少的特点。它还能适应不同矿化度的聚合物磺化钻井废水。用于现场废水处理，既高效又省时。色度降低50倍以下，COD降低到100mg /L，甚至远低于100mg /L。同时，悬浮物含量低于40 mg/L，絮凝体含量很低。因此，处理结果可能对后续处理有很大帮助。利用傅里叶变换红外光谱(FTIR)和扫描电镜(SEM)分析了聚合物磺化钻井废水与PAD官能团的相互作用及其脱色机理。脱色机理主要是离子键结合、电荷中和和聚磺化添加剂之间的吸附桥接。

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来源期刊

Journal of Residuals Science & Technology 环境科学-工程：环境

自引率

0.00%

发文量

审稿时长

>36 weeks

期刊介绍： The international Journal of Residuals Science & Technology (JRST) is a blind-refereed quarterly devoted to conscientious analysis and commentary regarding significant environmental sciences-oriented research and technical management of residuals in the environment. The journal provides a forum for scientific investigations addressing contamination within environmental media of air, water, soil, and biota and also offers studies exploring source, fate, transport, and ecological effects of environmental contamination.