GUO Yong*,FENG Yanwen,WANG Hefang,et al.Study on Adsorption of Congo Red by Tobacco Stalk Residue[J].Plating & Finishing,2022,(5):57-62.[doi:10.3969/j.issn.1001-3849.2022.05.010]
烟秆渣对刚果红的吸附性能研究
- Title:
- Study on Adsorption of Congo Red by Tobacco Stalk Residue
- Keywords:
- tobacco stalk residue; congo red wastewater; adsorption thermodynamics; adsorption kinetics
- 分类号:
- TS199
- 文献标志码:
- A
- 摘要:
- 通过研究吸附材料投加浓度、吸附过程反应时间以及初始刚果红废水浓度对吸附效果的影响，对烟秆渣吸附过程的动力学和热力学进行了分析，建立了吸附模型。 结果表明：烟秆渣吸附刚果红的吸附平衡时间为 40 ～ 120 min ，最大平衡吸附量为 61.5 mg/g 。烟秆渣吸附刚果红符合二级动力学模型，随着浓度的增大，速率常数不断减小。烟秆渣吸附刚果红过程中 Δ H >0 ，说明吸附过程中体系吸热， Δ G <0 说明吸附自发进行， Δ S>0 说明烟秆渣吸附刚果红过程中固液界面的无序性和混乱度在增加。
- Abstract:
- ： By studying the influences of the dosage concentration of adsorbent material ， the reaction time of adsorption process and the initial concentration of Congo red wastewater on the adsorption effect ， the kinetics and thermodynamics of the adsorption process of tobacco stalk residue were analyzed ， and the adsorption model was also established. The results showed that the adsorption equilibrium time of Congo red adsorbed by t obacco residue was 40~120 min ， and the maximum equilibrium adsorption capacity was 61.5 mg/g. The adsorption kinetics of Congo red by tobacco stem residue conformed to the second order kinetics ， and the rate constant decreased with the increase of concentration. In the process of adsorption of Congo red by tobacco stalk residue ， Δ H >0 indicates that the system absorbs heat during the adsorption process ， Δ G <0 indicates that the adsorption proceeds spontaneously ， Δ S >0 indicates that the disorder and chaos degree of solid-liquid interface are increasing in the process of adsorption of Congo red by tobacco stalk residue.
参考文献/References:
[1] Wang S, Boyjoo Y, Choueib A, et al. Removal of dyes from aqueous solution using fly ash and red mud[J]. Water Research, 2005, 39(1): 129-138.
[2] Cao Y L, Pan Z H, Shi Q X, et al. Modification of chitin with high adsorption capacity for methylene blue removal[J]. International Journal of Biological Macromolecules, 2018, 114: 392-399.
[3] Kismir Y, Aroguz A Z, Kismir Y. Adsorption characteristics of the hazardous dye Brilliant Green on Sakl?kent mud[J]. Chemical Engineering Journal, 2011, 172(1): 199-206.
[4] Fu Y Z, Viraghavan T. Fungal decolorization of dye wastewaters: a review[J]. Bioresource Technology, 2001, 79(3): 251-262.
[5] 董博逸 , 司文龙 , 王麒然 . 烟草秸秆综合利用与展望 [J]. 湖北农机化 , 2020(3): 69-69.
[6] 王荷芳 , 高美丹 , 王莉 , 等 . 烟柴杆废渣对 Pb 2+ 的吸附性能研究 [J]. 工业水处理 , 2017, 37(1):45-48.
[7] Zou W, Bai H, Gao S, et al. Characterization of modified sawdust, kinetic and equilibrium study about methylene blue adsorption in batch mode[J]. Korean Journal of Chemical Engineering, 2013, 30(1): 111-122.
[8] Ponnusami V, Gunasekar V, Srivastava S N. Kinetics of methylene blue removal from aqueous solution using gulmohar (delo nix regia) plant leaf powder: multivariate regression analysis[J]. Journal of Hazardous Materials, 2009, 169(1-3): 119-127.
[9] Jia Z, Li Z, Li S, et al. Adsorption performance and mechanism of methylene blue on chemically activated carbon spheres derived from hydrothermally-prepared poly(vinyl alcohol) microspheres[J]. Journal of Molecular Liquids, 2016, 220: 56-62.
[10] Islam M A, Tan I, Benhouria A, et al. Mesoporous and adsorptive properties of palm date seed activated carbon prepared via sequential hydrothermal carbonization and sodium hydroxide activation[J]. Chemical Engineering Journal, 2015, 270(11): 187-195.
[11] Bedin K C, Martins A C, Cazetta A L, et al. KOH-activated carbon prepared from sucrose spherical carbon: Adsorption equilibrium, kinetic and thermodynamic studies for methylene blue removal[J]. Chemical Engineering Journal, 2016, 286: 476-484.
[12] Rahimdokht M, Pajootan E, Arami M. Application of melon seed shell as a natural low-cost adsorbent for the removal of methylene blue from dye-bearing wastewaters: optimization, isotherm, kinetic, and thermodynamic[J]. Desalination & Water Treatment, 2015, 139(12): 1-13.
备注/Memo
收稿日期： 2021-02-01 修回日期： 2021-09-01 作者简介： 郭勇（ 1978 ―），男，博士，副教授， email ： GYTJ1028@163.com 基金项目： 天津市职业大学校企协同创新项目“烟秆炭化材料吸附性能的研究及应用”（ XQXT2020110202 ）