Journal
CERAMICS INTERNATIONAL
Volume 48, Issue 6, Pages 7362-7373Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.ceramint.2021.12.086
Keywords
Self-cleaning performance; Ceramic membrane; Water treatment
Categories
Funding
- National Natural Science Foundation of China [21878148, 22108090]
- Korea Institute of Energy Technology Evaluation and Planning (KETEP) - Ministry of Trade, Industry and Energy of the Republic of Korea (MOTIE) [20202020800330]
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Ceramic membranes have advantages in water treatment but suffer from fouling. This review introduces a better anti-fouling ceramic membrane - self-cleaning membrane, and summarizes four main strategies for constructing such membranes. Self-cleaning ceramic membranes can remove contaminants and recover water permeance, showing potential for industrial wastewater treatment.
Ceramic membranes have received much popularity due to their high mechanical strength, satisfactory acid/ alkali resistance, and long-term stability. However, ceramic membranes are also inevitably fouled by contaminates during the membrane separation process. Therefore, construction strategies of anti-fouling ceramic membranes are a main topic in current research. In this work, we review a better anti-fouling ceramic membrane, which is named self-cleaning membrane and membrane process. Date to now, there are four main strategies to construct self-cleaning ceramic membranes: 1) porous piezoelectric ceramic membranes; 2) photo-catalytic ceramic membrane; 3) electrochemical ceramic membranes and 4) self-cleaning ceramic membrane surface. Self-cleaning ceramic membranes can in-situ remove and decompose the pollutants on the membrane surface and recover the water permeance that exhibits a great potential to treat industrial wastewater without backwashing or other methods. The detailed membrane fabrication period, mechanism and important case studies are reported in this review. Self-cleaning ceramic membrane is expected to be next-generation anti-fouling ceramic membrane material for continuous water treatment. It is a first review work that systematically concluded all the strategies for self-cleaning ceramic membranes that can be an important reference in ceramic or membrane fields.
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