Aineistot 1-5 / 5
Effect of physico-chemical conditions and operating parameters on flux and retention of different components in ultrafiltration and nanofiltration fractionation of sweet whey
Tässä väitöstutkimuksessa tutkittiin fysikaaliskemiallisten olosuhteiden ja toimintaparametrien vaikutusta juustoheran fraktiointiin. Kirjallisuusosassa on käsitelty heran ympäristövaikutusta, heran hyödyntämistä ja heran ...
Enhancement of ultrafiltration process by pretreatment in recovery of hemicelluloses from wood extracts
(Lappeenranta University of Technology, 2016-01-14)
Hemicelluloses are potential raw material for several items produced in future wood-based biorefineries. One possible method for recovering hemicelluloses from wood extracts is ultrafiltration (UF). However, low filtration ...
Examination of the compaction of ultrafiltration membranes with ultrasonic time-domain reflectometry
(Lappeenranta University of Technology, 2017-11-10)
Membrane compaction and fouling increases the operational costs of membrane processes and decreases the lifetime of the membrane. Fouling is a major problem in most membrane processes, and it must be considered when ...
Development of a Ceramic Membrane Filtration Equipment and Its Applicability for Different Wastewaters
In this thesis the membrane filtration equipment for plate type ceramic membranes was developed based on filtration results achieved with different kinds of wastewaters. The experiments were mainly made with pulp and board ...
Critical flux and fouling in ultrafiltration of proteins
In this thesis different parameters influencing critical flux in protein ultrafiltration and membrane foul-ing were studied. Short reviews of proteins, cross-flow ultrafiltration, flux decline and criticalflux and the basic ...