石灰石法处理含氟废水及其污泥资源化研究
本次实验采用的是石灰石法处理含氟废水，并研究分析了影响其除氟效率的因素。考虑到此方法中影响石灰去除氟化物效率的因素较多，因而重点对其中的3个因素进行了研究分析。同时重点研究了处理含氟废水过程中所产生的氟化钙污泥的理化特性，讨论了氟化钙污泥资源化的合理途径，并设计了用含氟污泥与混合土料制作的陶土来烧制陶瓷。
毕业论文关键字：含氟废水；石灰石法；含氟污泥；污泥资源化
Abstract With rapid developent of modern industry, more and more common fluoride is utilized in industrial production。 Such as metal smelting, the electronics industry, glass manufacturing, electroplating, fluoride synthesis industry and other industrial production will need to use fluoride。 Although the vigorous development of industry can promote social progress, but its emissions generated in the process of a fluorine-containing waste water is also increasing year by year，which brings serious threat to the environment and the people around them。 At present,the common methods for processing wastewater containing fluoride are mainly chemical precipitation and adsorption, wherein the chemical precipitation method has been widely used because of its low cost and mature technology。 However,after a chemical precipitation process with fluorine-containing waste water,it will produce large amounts of fluorine-containing sludge, how to properly deal with these fluorine-containing fluorine-containing sludge wastewater treatment process is also a major problem。 If landfill directly, the choose is not only a waste of special solid waste resources, but also easy to cause secondary pollution to the environment。 In order to achieve fluorine-containing sludge resources, stabilization, reduction, especially for the treatment of wastewater generated in the process of a fluorine-containing fluorine-containing sludge were analyzed。
The experiment uses a limestone treatment of wastewater containing fluoride, and analyses the factors what affects the efficiency of fluoride removal。 In view of this process Lime removal efficiency of fluoride many factors, which focuses on one of the three factors were analyzed。 At the same time we focus on the physicochemical properties of fluorine treatment of wastewater generated in the sludge of calcium fluoride, and discussed the resource rational way of calcium fluoride sludge ,what’s more,designed to use a fluorine-containing sludge mixed with clay mixed soil material to fire ceramics。
Keywords: Fluoride wastewater；limestone method；mud with fluorine；sludge resources
目录
第一章 绪论 1
1。1研究背景 1
1。1。1氟在自然界中的分布 1
1。1。2氟对环境的影响 1
1。1。3含氟废水的主要来源 2
1。2处理含氟废水的研究进展 2
1。3废水处理后污泥的处置与资源化利用 3