Research School for Socio-Economic and
Natural Sciences of the Environment
Research School for Socio-Economic and
Natural Sciences of the Environment
Agenda

Florian Beyer

Date: 22 February 2019
Time: 13:30 - 15:00
Location: Aula, building 362, Gen. Foulkesweg 1, Wageningen

Dissertation title: 

Microbiological and process technological aspects of nanofiltration and reverse osmosis membrane biofouling

Group: Wageningen University, Microbiology
Promotor: Prof.dr.ir. A.J.M. Stams
Co-promotor: Dr. C.M. Plugge

Extra information:

Abstract:

Microbial biofilms causing detrimental effects to industrial processes are termed biofouling. The microbiological and process technological aspects of nanofiltration and reverse osmosis membrane biofouling have been investigated in full-scale industrial installations and in simplified laboratory systems. Anoxic groundwater treating nanofiltration installations (including their microbial communities), which were shown to be resistant towards biofouling development, have been studied and compared to oxic feed water treating membrane filtration plants (typically suffering from severe biofouling problems). Membrane cleaning, a usual remedy against biofouling development, was studied in full-scale installations and in a laboratory setup. Microorganisms, with a focus on Sphingomonadaceae, have then been isolated from the fouled membranes obtained from the full-scale studies. The key biofouling related physiological properties of the Sphingomonadaceae have then been extensively studied.