| Author | Castillo, Lourdie Payawal |
| Call Number | AIT Thesis no.EV-93-18 |
| Subject(s) | Trichloroethylene
Pervaporation
|
| Note | A thesis submitted in partial fulfillment of the requirements for the degree of Master of
Engineering |
| Publisher | Asian Institute of Technology |
| Abstract | A state-of-the-art literature review on pervaporation membrane separation process was
attempted in this study to assess its potential in environmental engineering applications.
Being a relatively new separation technique, the limitedly-available literatures reviewed
mostly focused on the use of the traditional, highly kinetic vacuum-operated system, with the
use of sweeping-air as an emerging variation still confined to alcohol dehydration.
In an effort to determine the potential applications of sweeping-air pervaporation or air
perstripping in the environmental engineering field, an experimental investigation was
conducted to evaluate the performance of a hydrophobic polydimethylsiloxane polyethersulfone
composite capillary module in the removal and/or concomitant recovery
of trichloroethylene from waste liquid streams. The effect of feed recycle rate, temperature
and concentration and air moisture content and flowrate were expressed in terms of
permeate flux and selectivity. Results showed that air perstripping is highly system-dependent
with transport being a function of the membrane itself, the mass transfer resistances that may
develop on either side of the membrane and possibly, the quality of the sweeping-air.
Due to their similarities, comparisons were made with air perstripping, membrane
stripping and air stripping, with the computed mass transfer coefficients (kLa) and stripping
factors as criteria. Comparisons showed that air perstripping possesses some advantages over
air stripping but further studies are highly recommended in this area.
Lastly, a process flow diagram for the complete removal (and possible recovery) of TCE
was proposed with pervaporation coupled to several conventional treatment technologies. |
| Year | 1993 |
| Type | Thesis |
| School | School of Environment, Resources, and Development (SERD) |
| Department | Department of Energy and Climate Change (Former title: Department of Energy, Environment, and Climate Change (DEECC)) |
| Academic Program/FoS | Environmental Engineering and Management (EV) |
| Chairperson(s) | Visvanathan, C.;Mora, Jean-Claude; |
| Examination Committee(s) | Lee, Seong-Key;Reutergardh, Lars Baetz; |
| Scholarship Donor(s) | Government of France; |
| Degree | Thesis (M.Eng.) - Asian Institute of Technology, 1993 |
