摘要
微塑料主要指环境中外形尺寸小于5 mm的塑料颗粒,来源是环境中存在的废弃塑料制品经过长期的风化裂解,其存在形式主要有片状、圆球状以及纤维状。随着微塑料污染问题日益突出,关于水环境中微塑料污染的问题备受关注。通过文献调研,结合目前国内外有关微塑料的去除工艺方案,提出了微孔铜网过滤和活性炭吸附相结合的去除方案,制作了实验模型,利用Fluent对流场内部进行了数值模拟,以光学显微镜、拉曼红外光谱、傅里叶红外光谱为工具,探究了微孔铜网孔径和活性炭种类对水环境中微塑料去除效果的影响。通过数值模拟结果与实验结果比对,结果表明:该装置对于水环境中微塑料的去除效率约为91.80%。
Microplastics mainly refer to plastic particles with an external dimension less than 5 mm in environment.The source is that waste plastic products in environment have undergone long-term weathering and pyrolysis,and their existing forms are mainly flakes,spheres and fibers.As the problem of microplastics pollution has become increasingly prominent,the issue of microplastics pollution in the water environment has attracted much attention.Through literature research,combined with the current domestic and foreign microplastics removal process plans,a removal plan combining microporous copper mesh filtration and activated carbon adsorption was proposed. An experimental model was made, and Fluent was used to numerically simulate the interior of the flow field. An optical microscope, Raman infrared spectroscopy and Fourier infrared spectroscopy are used as tools to explore the influence of the microporous copper mesh aperture and the types of activated carbon on the removal of microplastics in the water environment. Comparing the numerical simulation results with the experimental results, the results show that the removal efficiency of the device for microplastics in the water environment is about 91.80%.
作者
朱成杰
赵茂俞
杨朝忠
刘伟男
Zhu Chengjie;Zhao Maoyu;Yang Chaozhong;Liu Weinan(School of Bio-Food and Environment,Hefei University,Hefei,Anhui 230601,China;School of Advanced Manufacturing,Hefei University,Hefei,Anhui 230601,China)
出处
《绿色科技》
2022年第6期35-39,42,共6页
Journal of Green Science and Technology
关键词
微塑料
微孔铜网过滤
活性炭吸附
数值模拟
去除效率
microplastics
microporous copper mesh filtration
activated carbon adsorption
numerical simulation
removal efficiency
作者简介
朱成杰(1996-),男,硕士研究生,研究方向为环境工程;通讯作者:赵茂俞(1969-),男,博士,教授,研究方向为塑性精密成形理论及工艺参数优化设计。
