制冷剂废水的流化床深度除氟中试试验研究  

Pilot Test Research on Fluidized Bed Deep Defluorination of Refrigerant Wastewater

作　　者：张明辉 周福伟 盖文革 张刚[1] ZHANG Minghui;ZHOU Fuwei;GAI Wenge;ZHANG Gang(School of Civil Engineering and Architecture,University of Jinan,Jinan 250022,Shandong,China;Northwest Engineering Corporation Limited,Power Construction Corporation of China,Xi’an 710065,Shaanxi,China;Shandong Huaan New Materials Co.,Ltd.,Zibo 255300,Shandong,China)

机构地区：[1]济南大学土木建筑学院,山东济南250022 [2]中国电建集团西北勘测设计研究院有限公司,陕西西安710065 [3]山东华安新材料有限公司,山东淄博255300

出　　处：《济南大学学报（自然科学版）》2024年第6期664-669,679,共7页Journal of University of Jinan(Science and Technology)

基　　金：山东省自然科学基金项目(ZR2017MEE061)。

摘　　要：针对中国华北地区某氟化工企业制冷剂废水中氟离子超标现象,在实验室小试的基础上开展制冷剂废水的流化床深度除氟中试试验,确定流化床除氟工艺的最佳工况,并与传统除氟剂的药剂成本进行技术经济对比。结果表明:当氯化钙与氟化物(以氟离子计)物质的量比为3∶1、投加聚合氯化铝质量浓度为550 mg/L、酸碱度pH约为6.7、搅拌时间为43 min时工况最佳,氟化物质量浓度由9 mg/L左右减至1 mg/L左右,去除率约为89%;相对于传统除氟剂,流化床除氟工艺能实现制冷剂废水中氟化物的深度去除,是一种新型、低成本的深度除氟工艺。In view of the phenomenon of excessive fluoride ions in refrigerant wastewater from a fluorine chemical enterprise in North China,a pilot test of fluidized bed deep defluoridation of refrigerant wastewater was carried out on the basis of laboratory experiments.The best working conditions of fluidized bed defluoridation process were determined,and technical and economic comparison was made with cost of traditional defluoridation agent.The results show that when molality ratio of calcium chloride to fluoride(calculated by using fluoride ions)is 3∶1,mass concentration of polyaluminum chloride is 550 mg/L,pH is about 6.7,and stirring time is 43 min,the working conditions are the best.Mass concentration of fluoride is reduced from about 9 mg/L to about 1 mg/L,and removal rate is about 89%.Compared with the traditional defluorination agent,the fluidized bed defluorination process can realize deep removal of fluoride in refrigerant wastewater,which is a new and low cost deep defluorination process.

关 键 词：废水处理 深度除氟 中试试验 制冷剂废水 流化床 氟化物 

分 类 号：X703[环境科学与工程—环境工程]