Ultrafiltration process for lignin-lean black liquor treatment at different acid conditions

SF Mendes, D Pasquini, VL Cardoso… - Separation Science …, 2022 - Taylor & Francis
Black liquor treatment by acid precipitation produces two main streams: the high purity
precipitated lignin and the lignin-lean black liquor (a diluted lignin solution). Here, we …

Concentration polarization quantification and minimization in cork process wastewater ultrafiltration by an ozone pretreatment

M Minhalma, MN Pinho, JR Dominguez - Processes, 2021 - mdpi.com
Concentration polarization and membrane fouling have been identified as the main
problems during the ultrafiltration treatment of cork processing wastewaters. These problems …