dc.contributor.author |
Haider Ali Shah, Haider |
|
dc.date.accessioned |
2024-10-31T13:09:11Z |
|
dc.date.available |
2024-10-31T13:09:11Z |
|
dc.date.issued |
2024-10-31 |
|
dc.identifier.uri |
http://repository.cuilahore.edu.pk/xmlui/handle/123456789/4687 |
|
dc.description.abstract |
Forward osmosis is a greener desalination process as compared to reverse osmosis, which
is the most dominant desalination technology in the world. The most dominant membrane
morphology used in forward osmosis is thin film composite (TFC) membranes. TFC
membranes consist of a selective polyamide top layer and a support layer in the
ultrafiltration range. The supports are composed of commercial polymers such as
polysulfone (PSf), polyether sulfone (PES), polyimides (PI), polyamides (PA), and
polyacrylonitrile (PAN). These commercial polymers are derived from fossil fuels. This
research work aimed to replace the commercial polymers with recycled PET (polyethylene
terephthalate), which is a sustainable alternative to commercial polymers and can be used
to fabricate TFC membranes in a more sustainable way. The effects of varying evaporation
time, reaction time and additives on the performance of TFC membranes were studied. The
fabricated TFC membranes showed good performance during a forward osmosis process
to desalinate water. They had a comparable selectivity to conventional TFC membranes
made with polyether sulfone (PES) support. For 1 M NaCl draw solution, they exhibited a
water flux of 10.6 LMH and a reverse salt flux of 4.2 gMH with a selectivity of 0.4 g/L.
The performance of TFC membranes synthesized during the study needs further study to
assess their performance during long term operation. |
en_US |
dc.publisher |
Chemical Engineering Department COMSATS University Islamabad Lahore Campus |
en_US |
dc.relation.ispartofseries |
CIIT/FA20-RCH-001/LHR;8298 |
|
dc.subject |
greener desalination, technology, polyacrylonitrile, polyethylene terephthalate |
en_US |
dc.title |
Fabrication of Thin Film Composite Forward Osmosis Membranes for Desalination |
en_US |
dc.type |
Thesis |
en_US |