Effects of Viscosity on Submerged Membrane Microfiltration Systems.

ABSTRACT: Submerged microfiltration has a wide range of applications in water and wastewater treatment. Membrane fouling is a major problem, resulting in a severe decline in flux, high energy consumption and frequent membrane cleaning and replacement. The effect of viscosity was not previously studied under controlled conditions to relate it to the air scour. Hence, this study investigated the effect of viscosity on membrane fouling during the operation of submerged membrane microfiltration by adding predetermined amounts of glycerol to a kaolin clay suspension. The addition of glycerol increased the viscosity (from 0.001 to 0.003 Pa·s), resulting in a 3-fold higher transmembrane pressure (TMP) development. An increased airflow (air scour) rate by 3 fold (from 0.6 m³/m²/h to 1.

SUBMITTER: Pradhan M 

PROVIDER: S-EPMC9413319 | biostudies-literature | 2022 Aug

REPOSITORIES: biostudies-literature