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Removal of lignin from tall oil pitch
(2018)
The aim of this thesis was to separate lignin from tall oil pitch (TOP). As an introduction, composition and origin of TOP and lignin in TOP are shortly presented. Possible separation methods were screened for lignin removal ...
Use of nanofibrillated cellulose in the modification of ultrafiltration membranes
(2019)
Utilization of biomass as a more sustainable and environmentally friendly substitute to fossil raw material has been proven to be beneficial in several industries. Cellulose is a linear long chain polysaccharide that can ...
Recycling of deep eutectic solvents with membrane technology
(2018)
Penetration towards biomass utilization as an energy source instead of fossil fuels due to its environmental friendliness, leads towards ionic liquid (IL) usage to break lignocellulosic biomass bonds. Deep eutectic solvents ...
Membrane fouling in hollow fiber membrane filtration of surface water
(2020)
Membrane filtration is a promising process for production of drinking water. The main challenge for applying membrane filtration for this purpose is membrane fouling. For this work, literature concerning membrane filtration ...
Recycling of deep eutectic solvents with a membrane-based process
(2020)
Deep eutectic solvents (DES) are non-flammable, non-toxic, biodegradable solvents which recycling opportunities are still poorly studied. One of the possible applications of DES includes lignin extraction from lignocellulosic ...
Removal of pharmaceuticals from wastewater/ liquid waste by sonocavitation
(2024)
Water treatment technologies based on cavitation enable the purification of wastewater in an energy-efficient manner and with no or less use of oxidizing chemicals. The aim of this work is to find out the suitability of ...