萤石法无水氟化氢生产过程中会产生一定量的污染物质,这些污染物包括含氟废气、含氟废水以及含氟固废。之前各生产企业都有各自相应的处理措施,但处理效果仍无法满足当前的环保法规要求。针对现阶段废气处理提标要求：氟化物（以F计）排放限值从≤9.0 mg/m³提升到≤6.0 mg/m³、工艺尾气二氧化硫排放限值从≤550 mg/m³提升到≤100 mg/m³、以及降低烘粉尾气VOC含量等。从分析污染物产生的成因出发,通过调整并集成现有的选择性催化还原（SCR）脱硝、VOC氧化技术方案,探究出达标排放的处理方法。根据废气成分特征,在节能减排的前提下,通过采用简单、成熟、可靠的处理工艺,既能满足不断提升的环保要求、实现清洁化生产,又能获得功效可靠、经济合理、管理便利的效果。

A certain amount of pollutants are generated during the production of anhydrous hydrogen fluoride by fluorite method.These pollutants are fluorine-containing waste in gas,liquid and solid forms.Previously,every production company has its own corresponding treatment measure,but the disposal effect could not meet the requirement of the newest regulation of environmental protection.Aiming at the exhaust gas treatment at present,was improved as follows：the fluoride（in F） content was reduced from 9.0 mg/m³ to 6.0 mg/m³,the sulfur dioxide content in process tail gas was lowered from 550 mg/m³ to 100 mg/m³ and the VOC content of the tailings of baking powder was reduced etc..Through analyzing the causes of pollutants,with readjustment and integrate existing SCR & VOC oxidation techniques,a qualified treatment method for discharge was explored.According to the components property of the exhaust gas,a simple,reliable treatment process was applied to realize energy saving and emission reduction.The process not only meets the enhanced environmental protection requirements and realizes clean production,but also achieves high efficacy,economical rationality and convenient management.