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

Almotasembelleh Abushaban

Date: 03 December 2019
Time: 16:00 - 17:30
Location: Delft

Dissertation title: 

Monitoring of biological fouling of seawater reverse osmosis membrane

Group: Environmental Engineering and Water Technology, IHE Delft
Promotor: Prof.dr. Maria D. Kennedy
Co-promotor: Sergio Salinas


Pretreatment of raw seawater is used to improve the seawater quality of seawater reverse osmosis (SWRO) and thus minimizing fouling issues. Almost all SWRO desalination plants require pretreatment processes depending on the source seawater quality. Reducing organic and biological fouling potential in SWRO feed water are being considered important to improve SWRO performance. Biofouling results from the microbial growth in membrane system. Microorganisms utilize the biodegradable substances present in seawater to multiply and to form a thick layer of slime called a biofilm. Limiting both microorganisms and nutrient in SWRO feed water are likely appropriate approach to control organic/biological fouling. New methods need to be developed to monitor and to assess the efficiency of SWRO pretreatment processes to reduce/remove the microorganisms and nutrients concentrations. The main goal of this research was to develop methods that can be used to monitor and assess the removal of organic/biological fouling potential through the pretreatment of SWRO system.

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