负载FeOOH刺梨渣生物质炭对水中氟的吸附效果  

Adsorption Effect of FeOOH Loaded Rosa roxburghii Residue Biomass Carbon on Fluorine(F-)in Water

作　　者：曾维 朱健[1,2,3] 郭兴强[1,3] 尹辉[4] ZENG Wei;ZHU Jian;GUO Xingqiang;YIN Hui(College of Resources and Environmental Engineering,Guizhou University,Guiyang 550025,China;Key Laboratory of Karst Georesources and Environment,Ministry of Education,Guiyang 550025,China;Guizhou Field Observation and Research Station of Karst Environment and Ecosystem,Ministry of Education;Guizhou Environmental Engineering Assessment Center,Guiyang 550025,China)

机构地区：[1]贵州大学资源与环境工程学院,贵阳550025 [2]喀斯特地质资源与环境教育部重点实验室,贵阳550025 [3]贵州喀斯特环境生态系统教育部野外科学观测研究站,贵阳550025 [4]贵州省环境工程评估中心,贵阳550025

出　　处：《四川农业大学学报》2023年第4期690-697,共8页Journal of Sichuan Agricultural University

基　　金：贵州省科技计划项目黔科合支撑项目([2019]2864号)。

摘　　要：【目的】明确负载FeOOH刺梨渣生物质炭对水中氟的吸附效果。【方法】以刺梨渣为原材料,采用醇助水热法制备了新型生物质炭FeOOH-BC。以水溶液中氟离子为目标污染物进行静态吸附实验,考察溶液pH、吸附剂投加量、吸附时间和初始浓度对氟离子吸附效果的影响。【结果】当吸附反应条件pH=6、T=25℃、氟离子初始浓度50mg/L、吸附剂投加量0.05g时,震荡吸附24h,FeOOH-BC对氟离子去除率达95.27%。【结论】FeOOH的引入可以极大地提高生物质炭对氟离子的吸附性能,其可能以多层吸附与化学吸附为主。【Objective】This study aims to determine the adsorption effect of biomass carbon loaded with FeOOH Rosa roxburghii residue on fluoride in water.【Method】A new type of biomass carbon FeOOHBC was prepared from Rosa roxburghii residue by alcohol assisted hydrothermal method.The static adsorption experiment was carried out with fluoride ion in aqueous solution as the target pollutant to investigate the effects of solution pH,adsorbent dosage,adsorption time and initial concentration on fluoride ion adsorption.【Result】When the adsorption reaction conditions were set as:pH=6,T=25℃,the initial concentration of fluoride ion is 50 mg/L,and the dosage of adsorbent=0.05 g,and the shaking adsorption lasted for 24 hours,the removal rate of fluoride ion by FeOOH-BC reached 95.27%.【Conclusion】The introduction of FeOOH can greatly improve the adsorption performance of biomass carbon for fluoride ions mainly by means of multi-layer adsorption and chemical adsorption.

关 键 词：氟 刺梨渣 生物质炭 FEOOH 动力学 

分 类 号：X703[环境科学与工程—环境工程]