Membrane backwash cleaning using CO2 nucleation

Abstract

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Application of ultra-low concentrations of moderately-hydrophobic chitosan for ultrafiltration membrane fouling mitigation

“…coagulation/flocculation, adsorption, oxidation, etc.) [5][6][7][8], surface modification [9,10], and operation optimization [11,12] (e.g. running modes, cleaning modes, air scouring, etc.)…”

Reverse Osmosis Membrane Combined with Ultrasonic Cleaning for Flue Gas Desulfurization Wastewater Treatment

“…Recently, new technologies for membrane cleaning, such as membrane cleaning using saturated CO 2 solution, CO 2 nucleation, steam cleaning, air bubbles, and ultrasonic cleaning have been investigated and reported [25][26][27][28][29][30][31][32][33]. Among these methods, ultrasonic cleaning has been paid more attention to in recent investigations due to the consistency of the membrane filtration process and no consumption of chemicals.…”

Evaluation of different cleaning strategies for different types of forward osmosis membrane fouling and scaling

“…Lastly, different hybrid fouling mitigating methods are proposed and investigated. Particularly, CO 2 saturated solution is evaluated as a novel cleaning agent for the first time for FO since it could effectively control membrane fouling in reverse electrodialysis (RED) [35], and ultrafiltration (UF) [36].…”