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Viewing report
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Intermediate to Long Term Optimization of Dead-end
Ultrafiltration. Edition No. 1
VDM Publishing House, Oct 2008, Pages: 200
Ultrafiltration (UF) is increasingly used as a
technology for surface water purification. UF
membranes have high selectivity and became
economically attractive during the last fifteen
years. However, membrane performance is influenced
by fouling. For this reason frequent cleaning of the
membrane is required. In the short term the membrane
is cleaned by means of backwashing and in the long
term the membrane is cleaned with cleaning
chemicals. Although backwashing and chemical
cleaning are useful methods to prevent fouling, the
execution of such procedures is often based on rules
of thumb and/or pilot plant studies. It is expected
that process optimization will lead to significant
reduction in operating costs and improved control.
This thesis deals with the formulation of a
hierarchical control structure to optimize the
overall ultrafiltration process. Models,
experimental protocol and optimization routines were
developed and successfully tested and implemented.
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