Title
Alternative methods for cleaning membranes in water and wastewater treatment
Date Issued
01 April 2022
Access level
metadata only access
Resource Type
review
Publisher(s)
John Wiley and Sons Inc
Abstract
Membrane fouling is caused by foulant deposition or adsorption through physical or chemical interactions on the membrane surface, causing the reduction of flux through the membrane. The main drawbacks of chemical agents used for cleaning are cost, damage caused on the membrane, and waste stream making the process unattractive. Alternative, methods such as ultrasound, enzymatic process, and osmotic backwashing were explored for membrane cleaning. Among all mentioned methods, micronanobubbles have been reported as a promising and emergent method for membrane surface cleaning; unfortunately, the information is limited, but preliminary studies have shown it as an efficient, cheap, and environmentally friendly technique. Other methods like electrically and vibratory-enhanced membrane cleaning also could be interesting but currently are unexplored and information is limited. Practitioner Points: Chemical cleaning is an efficient option; however, from an environmental point of view, it is not attractive, and high concentrations could cause damage to the membrane. Micronanobubbles are an emergent and suitable technology for membrane and surface cleaning. Membrane modification and functionalization avoid membrane fast fouling, and the cleaning process is easier, but the manufacture cost could be expensive.
Volume
94
Issue
4
Language
English
OCDE Knowledge area
Química Ingeniería ambiental
Scopus EID
2-s2.0-85128829072
PubMed ID
Source
Water Environment Research
ISSN of the container
10614303
Sponsor(s)
This study was supported by the Consejo Nacional de Ciencia, Tecnología e Innovación Tecnológica (CONCYTEC) and the Programa Nacional de Investigación Científica y Estudios Avanzados (PROCIENCIA) (Grant 06‐2019‐FONDECYT‐BM‐INC.INV), Peru.
Sources of information: Directorio de Producción Científica Scopus