污油泥絮凝机理及其研究进展

Flocculation Mechanism of Oily Sludge and Its Research Progress

根据污油泥处理过程,对常见的化学絮凝过程进行了总结,并对主要絮凝机理及优势和局限性进行了分析。得出了结论：吸附架桥、卷扫网捕、电中和、胞外聚合物架桥等机理配合使用,使絮凝剂有优异的絮凝性能,且其经改性、复合、复配等方法使自身有多种絮凝机制,这对于合成高效的污油泥絮凝剂具有重要意义。最后指出污油泥絮凝过程复杂,进一步研究其具体作用方式和机理以及影响絮凝作用的主要因素都将有助于污油泥絮凝剂的广泛应用。

The common chemical flocculation process was summarized according to the oily sludge treatment process, and the different main flocculation mechanism and the superiority and the limitation were analyzed. The conclusion is that all of these factors such as adsorption bridge, volume sweep the trap, electrical neutralization, extracellular polymer bridging and other mechanisms have come together to make flocculants possess excellent flocculation performances. In addition, modification, recombination and compounding of the flocculants can cause many flocculation mechanisms, which is of great significance for the synthesis of high efficient sludge flocculants. Finally, the complexity of oily sludge flocculation process was point out. Further research on specific action mode and mechanism and main factors affecting flocculation will be helpful to the extensive application of oily sludge flocculant.