碳硅纳米材料上挥发性甲基硅氧烷吸附过程与性能研究 | |
Alternative Title | Adsorption property of volatile methylsiloxanes (VMS) on porous carbon/silicon nano-adsorbents |
王刚 | |
Subtype | 博士后 |
Thesis Advisor | 欧阳志云 ; 郝郑平 |
2019-08 | |
Degree Grantor | 中国科学院生态环境研究中心 |
Place of Conferral | 北京 |
Degree Name | 理学 |
Degree Discipline | 生态学 |
Keyword | 挥发性甲基硅氧烷,多孔炭,分子筛,吸附等温线,吸附动力学 Volatile Methylsiloxane, Porous Carbon, Zeolites, Adsorption Isotherm, Adsorption Kinetics |
Abstract | 甲基硅氧烷类有机物,作为工业添加剂大量应用于纺织行业、涂料行业等,也作为助剂加入到个人洗护用品中,最终汇入污水处理厂和垃圾填埋场中。在后续的厌氧化处理过程中,会进一步分解成为小分子的挥发性甲基硅氧烷(Volatile methylsiloxanes,简称VMS),存在于并严重妨碍了厌氧后沼气的资源化利用。此外,许多硅基聚合物、弹性体和树脂在生产中,也使用到VMS中间体,在此过程中有大量VMS逸散进入到大气中,参与了大气反应生成二次气溶胶。因此,从资源化利用和工业污染控制角度来说,VMS的污染控制均具有重要意义。本研究研究考察了多孔炭和分子筛类纳米吸附剂对特征VMS污染物六甲基二硅氧烷(Hexamethyldisiloxane,简称L2)的吸附过程和吸附机理,阐明影响吸附剂吸附性能的主要影响因素。研究的主要内容及取得的结论和成果如下: |
Other Abstract | Volatile methylsiloxanes (VMS) are widely used as industrial additives in textile industry, paint industry, etc. They are also added to personal cleaning products as additives, and eventually discharged into sewage treatment plants and landfills. In the subsequent anaerobic treatment process, VMS will be further decomposed into small molecules, which exist and seriously hinder the utilization of anaerobic biogas. In addition, many VMS intermediates are also used in the production of silicon-based polymers, elastomers and resins, during which a large number of VMS escape into the atmosphere and participate in the formation of atmospheric secondary aerosols. Therefore, from the perspective of resource utilization and industrial pollution control, removal of VMS is of great significance. In this study, nano-adsorbents, including porous carbon and zeolites were selected as adsorbents to investigate their adsorption properties towards characteristic VMS pollutant, i.e., hexamethyldisiloxane (L2). The main factors affecting the adsorption performance of adsorbents were elucidated. The main contents, achievements and conclusions of the study are as follows: |
Pages | 104 |
Language | 中文 |
Document Type | 学位论文 |
Identifier | http://ir.rcees.ac.cn/handle/311016/42299 |
Collection | 城市与区域生态国家重点实验室 |
Recommended Citation GB/T 7714 | 王刚. 碳硅纳米材料上挥发性甲基硅氧烷吸附过程与性能研究[D]. 北京. 中国科学院生态环境研究中心,2019. |
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王刚-碳硅纳米材料上挥发性甲基硅氧烷吸附(4209KB) | 学位论文 | 开放获取 | CC BY-NC-SA | Application Full Text |
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