Hydraulic Modeling and Economic Optimization of Hollow Fiber Membranes,
Abstract
An increased interest in the use of ultrafiltration (UF) processes for the treatment of surface and ground water has prompted studies to evaluate economic advantages of UF over other types of treatment processes. We will interest ourselves specifically with hollow fiber membrane modules, and attempt to accurately model UF system parameters with a hydraulic equivalent of the UF system. The mass transfer model presented by Cheryan assumes system operation in a region where permeate flux is independent of system pressure. In this model, the permeate flux is described in terms of boundary layer concentration, gel layer concentration, and mass transfer coefficient. The motivation for this report was that simple membrane fouling models could be incorporated in an overall UF system hydraulic model. The hydraulic model we will develop will differ from the models described above in that we will attempt to describe the UF system as a whole as opposed to modeling only the membrane permeate flux. The hydraulic model will offer the advantages of allowing for the interdependence of the various head loss terms and for the non-linearity of head loss as a function of operating pressure and flow rate. The model further allows the user to input any number of membrane fouling schemes directly into the model by varying a single parameter.
Document Details
- Document Type
- Technical Report
- Publication Date
- Aug 02, 1991
- Accession Number
- ADA245094
Entities
People
- Eric S. Odderstol
Organizations
- University of Illinois Urbana–Champaign