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毕业论文网 > 任务书 > 环境科学与工程类 > 资源环境科学 > 正文

磁性硅藻土吸附剂的制备及性能研究任务书

 2020-06-03 21:55:33  

1. 毕业设计(论文)的内容和要求

化工废水成分复杂,毒性大,色度高,难生物降解等问题,这类废水的排放严重污染了我们的生态环境。

硅藻土是目前比较新型的价廉、易获取的吸附剂,其具有比表面积较大,孔隙率高,不规则的硅藻构型使其吸附能力较一般吸附剂强,对污水有极好的净化效果,但未改性的硅藻土原土存在吸附量小、颗粒小易造成溶液ss增大,吸附剂流失严重且再生困难等缺点。

针对以上难题,本论文研究重点是制备出一种磁性硅藻土。

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2. 参考文献

[1] 刘洁,赵东风. 硅藻土的研究现状及进展[J]. 环境科学与管理,200,(05): 104~106. [2] 陈碧霄,于鹏,陈宋辉,等. 改性硅藻土的制备及其对硝基苯的吸附性能研究[J]. 环境污染与防治,2014,8: 023. [3] 邹兆龙. 磁分离技术在污水处理技术方面的现场应用与探究[J]. 民营科技, 2013,12: 69~70. [4]、韩琳,陈宋辉,于鹏,等. 磁性硅藻土的制备及其性能研究.环境工程学报,2016,10(6):2987~2991. [5] 杜玉成,叶力佳. 硅藻土对废水中重金属离子的吸附性能研究[D]. 北京工业大学,2003. [6] Necla Caliskan,Ali Riza Kul,Salih Alkan,et al. Adsorption of Zinc(II) on diatomite and manganese-oxide-modified diatomite: A kinetic and equilibrium study [J]. Journal of Hazardous Materials,2011,193: 27~36. [7] Maria Aivalioti,Ioannis Vamvasakis,Evangelos Gidarakos. BTEX and MTBE adsorption onto raw and thermally modified diatomite [J]. Journal of Hazardous Materials,2010,178: 138~143. [8] 林俊雄,杨辉,詹树林. 硅藻土基吸附剂的制备、表征及其染料吸附特性研究[D]. 浙江大学,2007. [9] H. Arik,Synthesis of Si3N4 by the carbon-thermal reduction and nitridation of diatomite[J]. Journal of the European Ceramic Society,2005-2014,23. [10] B. Gao,P. Jiang,F. An. Studies on the surface modification of diatomite with polyethyleneimine and trapping effect of the modified diatomite for phenol [J]. Applied Surface Science,2005,205: 273~279. [11] 王平,曹亚锋. 硅藻土的改性及其在含铁废水处理中的应用[D]. 中南林业科技大学,2010. [12] Sheng G,Wang S,Hu J,et al. Adsorption of Pb (II) on diatomite as affected via aqueous solution chemistry and temperature[J]. Colloids And Surfaces A-physicochemical And Engineering Aspects,2009,339(1-3): 159~166. [13] Guerue M,Venedik D, Murathan A. Removal of trivalent chromium from water using low-cost natural diatomite[J]. Journal of Hazardous Materials,2008, 160(2-3): 318~323. [14] Khraisheh M,Al-Degs Y S,Mcminn W. Remediation of wastewater containing heavy metals using raw and modified diatomite[J]. Chemical Engineering Journal, 2004,99(2): 177~184. [15] 汪滨,李从举. 单相钡铁氧体磁性材料的制备及磁性能研究[J]. 材料导报,2012,25(12): 107~114. [16] Li F B,Liu C S,Liu T X,et al. Effect of alumina on photocatalytic activity of iron oxides for bisphenol a degradation[J]. Hazard Mater,2007,149(2):199~207. [17] Muranaka C T,Julcour C,Wilhelm A,et al. Regeneration of Activated Carbon by (Photo)-Fenton Oxidation[J]. Industrial Engineering Chemistry Research, 2010,49(3): 989~995. [18] Ye Yao,Kun Yang,Weijiang,et al. Parametric study on silica gel regeneration by hot air combined with ultrasonic field based on a semi-theoretic model [J]. International Journal of Thermal Sciences. 2014,84:86~103. [19] Kun Yang,Ye Yao,Shiqing Liu. Effect of applying ultrasonic on the regeneration of silica gel under different air conditions [J]. International Journal of Thermal Sciences. 2012,61:67~78.

3. 毕业设计(论文)进程安排

2015.1-2015.3 查阅文献,撰写文献综述和开题报告,并修改开题报告 2015.3-2015.5 试验阶段(制定试验步骤、预作实验、试验、处理数据、若有需要再补充某些数据) 2015.6 撰写论文、修改论文,准备答辩

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