[1]赵建益,王侃鸣,刘益兵,等.APTES改性玻璃滤料的制备及过滤性能研究[J].中国给水排水,2020,36(21):98-101.
　ZHAO Jian-yi,WANG Kan-ming,LIU Yi-bing,et al.Preparation and Filtration Performance of Glass Filter Media Modified by APTES[J].China Water & Wastewater,2020,36(21):98-101.
点击复制

APTES改性玻璃滤料的制备及过滤性能研究

中国给水排水[ISSN:1000-4062/CN:12-1073/TU] 卷: 第36卷 期数: 2020年第21期 页码: 98-101 栏目: 出版日期: 2020-11-01
Title:
Preparation and Filtration Performance of Glass Filter Media Modified by APTES
作者:
赵建益1，王侃鸣2，刘益兵1，王红宇2
(1.浙江工业大学建筑工程学院，浙江杭州310023；2.浙江工业大学环境学院，浙江杭州310014)
Author(s):
ZHAO Jian-yi1,WANG Kan-ming2,LIU Yi-bing1,WANG Hong-yu2
(1. School of Civil Engineering and Architecture, Zhejiang University of Technology, Hangzhou 310023, China; 2. College of Environment, Zhejiang University of Technology, Hangzhou 310014, China)
关键词:
3-氨丙基三乙氧基硅烷; 玻璃滤料; 石英砂; 改性
Keywords:
APTES; glass filter media; quartz sand; modification
摘要:
采用3-氨丙基三乙氧基硅烷（APTES）对经破碎、筛分得到粒径为0.8~1.2 mm的废弃啤酒瓶玻璃滤料进行表面改性，制备出一种新型改性玻璃滤料。采用其过滤微污染原水，在进水浊度为4 NTU、腐殖酸浓度为5 mg/L、细小颗粒物（粒径范围为2~180 μm）含量为9 551 个/mL的条件下，改性玻璃滤料对浊度、腐殖酸、细小颗粒物的去除率分别达到62.5%、67%和66%，而石英砂的相应去除率仅为37.5%、55%和10%。改性最佳工艺条件如下：偶联剂浓度为10%、温度为110 ℃、反应时间为12 h。玻璃滤料改性后比表面积由0.326 m2/g变为3.451 m2/g，等电点的pH值由2.3提高到9，而石英砂的比表面积仅为0.293 m2/g，等电点的pH值仅为1。
Abstract:
Surface of waste beer bottle glass filter media with particle size of 0.8-1.2 mm after crushing and screening was modified by 3-aminopropyl triethoxysilane (APTES) to prepare a new modified filtration medium. Filtration experiment of micro-polluted water showed that the removal rates of turbidity (initial concentration of 4 NTU), humic acid (initial concentration of 5 mg/L) and fine particles (initial concentration of 9 551 pcs/mL with particle size of 2-180 μm) by the modified glass filter media were 62.5%, 67% and 66%, respectively. However, the removal rates of them by quartz sand were only 37.5%, 55% and 10%, respectively. The optimum conditions of modification were coupling agent concentration of 10%, reaction temperature of 110 ℃ and reaction time of 12 hours. After modification, specific surface area of the glass filter media increased from 0.326 m2/g to 3.451 m2/g, and isoelectric point pH increased from 2.3 to 9, which were much higher than those of quartz sand (0.293 m2/g and 1).
更新日期/Last Update: 2020-11-01