粉煤灰制备聚硅酸盐絮凝剂的研究进展

The Technological Development on Theprogress in the Research of Preparation of Polysilicate Coagulants From Fly Ash

介绍了粉煤灰的现状和主要化学成分及性质,综述了高效提取粉煤灰中硅、铝和铁的方法,以及利用提取物质制备聚硅酸盐絮凝剂的方法、条件和水处理效果;重点分析了粉煤灰的物化改性的方法、原理和效果,总结了粉煤灰制备絮凝剂的工艺和方法,对如何更高效提取粉煤灰中有用物质和制备更优越絮凝性能的絮凝剂提出了建议。

The paper has Describing described the current situationstatus of fly-ash in China and its main chemical composition and properties, the paper summarizeds high-effective extraction methods of silicon, aluminum and iron from fly ash, and reviews preparation methods of preparing polysilicate coagulants, conditions and water treatment results of the polysilicate coagulants with the extracts, this paperMoreover, it has focuses onanalyzed the methods, principles and effects of the physicochemical modification, and sums summed up technology and method of the preparation of coagulant from fly ash, at At last, it has giveput forward s some advices on how to extractget useful substances more extracts efficiently from fly ash and gain coagulants with better remarkable coagulant performance.