作　　者： ; ; ; ;

机构地区： 同济大学

出　　处： 《宝钢技术》 2014年第2期76-80,共5页

摘　　要： 混酸酸洗工艺中,酸洗后的废混酸含有金属离子、HNO3、HF、F-、NO-3等。现引进世界较成熟的混酸再生系统来处理废混酸,对再生的混酸重新投入产线使用。介绍了混酸再生系统对环境产生的正面、负面影响及解决负面影响的方法。相比较传统酸处理方式,混酸再生方式的大量减排对环境有着积极作用,避免了大量使用药剂及使用药剂后大量废弃物排放对环境的负面影响。此外,除了该系统自身的有限环境影响外,生产过程中,系统的操作控制、设备状态也会对环境产生影响。叙述了如何通过系统操作控制来控制设备状态,最终整体控制混酸再生系统对环境造成的影响。 The Pickling Process which adopts HNO3 ＆ HF, produces waste acid which contains metal ion,HNO3, HF, F- , NO3- etc. It introduces the advanced acid Regeneration Process to deal with the waste acid. And the regenerated acid will be reused finally. The thesis introduces the positive and negative impact on environment and how to deal with the negative impact. Compare with the traditional methods, the acid Regeneration could reduce large amounts of waste which takes the positive impact on environment. It avoids to use large amounts of reagent which will produce waste and it avoids negative impact on environment that the reagent waste caused. Besides the environmental impact that acid Regeneration contains itself, the system control and the states of equipments also have the impact on environment during its operation. So the article describes how to control the system and the states of equipments which have indirect influence on environment. And the influence on environment can be controlled at last.

关 键 词： 混酸再生 硝酸 氢氟酸 环境

领　　域： [化学工程] [化学工程]