Electro-assisted CNTs/ceramic flat sheet ultrafiltration membrane for enhanced antifouling and separ

来源 :环境科学与工程前沿 | 被引量 : 0次 | 上传用户:wxcplayer
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
Ultrafiltration is employed as an important process for water treatment and reuse,which is of great significance to alleviate the shortage of water resources.However,it suffers from severe membrane fouling and the trade-offbetween selectivity and permeability.In this work,a CNTs/ceramic flat sheet ultrafiltration membrane coupled with electro-assistance was developed for improving the antifouling and separation performance.The CNTs/ceramic flat sheet membrane was fabricated by coating crosslinked CNTs on ceramic membrane,featuring a good electroconductivity of 764.75 S/m.In the filtration of natural water,the permeate flux of the membrane with the cell voltage of-2.0 V was 1.8 times higher than that of the membrane without electro-assistance and 5.7-fold greater than that of the PVDF commercial membrane.Benefiting from the electro-assistance,the removal efficiency of the typical antibiotics was improved by 50%.Furthermore,the electro-assisted membrane filtration process showed 70% reduction in energy consumption compared with the filtration process of the commercial membrane.This work offers a feasible approach for membrane fouling mitigation and effluent quality improvement and suggests that the electro-assisted CNTs/ceramic membrane filtration process has great potential in the application of water treatment.
其他文献
Polyurethane is a general term for a class of polymers containing a carbamate group (-NHCOO-) in its main chain structure, including thermoplastic elastomers, f
期刊
Abiotic humification is important in the formation and evolution of organic matter in soil and compost maturing processes.However,the roles of metal oxides in a
Low-strength municipal wastewater is considered to be a recoverable nutrient resource with economic and environmental benefits.Thus,various technologies for nut
作为高中英语学习中的重点、难点,英语词汇的学习已经成为很多学生头疼的问题。在实际学习中,有不少学生都感觉英语词汇很难记住,总是边记边忘,往往耗费了大量的学习时间却收
Antibiotic is widely present in the effluent from livestock husbandry and the pharmaceutical industry.Antibiotics in wastewater usually have high biological tox
在篮球运动的技术、战术得到长足发展的今天,远距离投篮在比赛中的重要性亦与日俱增。因此,亟需加强远距离投篮的训练。从体能、技术、心理等方面入手,通过专门的体能训练;投
We evaluated the effect of hydrothermal pretreatments,i.e.,thermal hydrolysis (TH) and wet oxidation (WO) on sewage sludge to promote resource recovery.The hydr
舞蹈是一种形象艺术,舞蹈的美主要就是从它的感觉和意境中体现出来,优秀的舞蹈要根据不同的音乐表现不同的感觉和意境,正确的、美的感觉和意境有助于舞蹈的成功。本文就如何提高
Recently,different nanomaterial-based adsorbents have received greater attention for the removal of environmental pollutants,specifically heavy metals from aque
传统的英语教学方法已经不适用于培养学生的综合能力,语篇教学注重语境和语篇功能,以培养学生的交际能力。本文从功能语言学的角度,探讨大学英语语篇教学的途径与手段。 The
期刊