Performance of combined PTFE hydrophilic and hydrophobic membrane during laundry/detergent wastewater treatment by air gap membrane distillation (AGMD): an experimental study
Membrane distillation (MD) is making a rapid progress in desalination and wastewater treatment research. Though MD produces lower distillate yield compared with other membrane processes, its ability to be used with varieties of renewable and waste energy source coupled to produce ultrapure water mak...
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Desalination Publications
2018
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| author | Siddique, Istiaq Jamil Bahar, Rubina Ibrahim, Shaliza Al Hazza, Muataz Hazza Faizi |
| author_facet | Siddique, Istiaq Jamil Bahar, Rubina Ibrahim, Shaliza Al Hazza, Muataz Hazza Faizi |
| author_sort | Siddique, Istiaq Jamil |
| collection | UM |
| description | Membrane distillation (MD) is making a rapid progress in desalination and wastewater treatment research. Though MD produces lower distillate yield compared with other membrane processes, its ability to be used with varieties of renewable and waste energy source coupled to produce ultrapure water makes it a competitive choice. One of the major drawbacks of MD is the fouling and pore wetting of the membrane surface, and therefore modifications to membrane surface characteristics and combining MD with other techniques are necessary for successful rejection of all sorts of organic, inorganic and biological contaminants, except few. One of them is household wastewater containing common laundry detergent sodium dodecylbenzenesulfonate. Although it has been reported that alkaline surfactant causes pore wetting in hydrophobic membranes, but the extent of damage and the severe drop in permeate quality has not been reported. In this work, the preliminary experiments have been carried out with standard laundry wastewater and it has been observed that commercially available hydrophobic polytetrafluroethylene membrane permits all the constituents of the feed water in presence of small amount of laundry detergent. Complete pore wetting of the membrane makes it reach very high permeate flux (40 L/m2 h) and the distillate quality is near to the feed water (>2,400 µS/cm). A simple technique was developed to prevent pore wetting, by combining hydrophilic and hydrophobic membrane without using any interfacial-bonding agent or crosslinking agent. This simple technique successfully produced pure distillate from feed water containing detergent with a conductivity of 12–20 µS/cm. |
| first_indexed | 2024-03-06T05:51:52Z |
| format | Article |
| id | um.eprints-20664 |
| institution | Universiti Malaya |
| last_indexed | 2024-03-06T05:51:52Z |
| publishDate | 2018 |
| publisher | Desalination Publications |
| record_format | dspace |
| spelling | um.eprints-206642019-03-12T02:41:10Z http://eprints.um.edu.my/20664/ Performance of combined PTFE hydrophilic and hydrophobic membrane during laundry/detergent wastewater treatment by air gap membrane distillation (AGMD): an experimental study Siddique, Istiaq Jamil Bahar, Rubina Ibrahim, Shaliza Al Hazza, Muataz Hazza Faizi TA Engineering (General). Civil engineering (General) Membrane distillation (MD) is making a rapid progress in desalination and wastewater treatment research. Though MD produces lower distillate yield compared with other membrane processes, its ability to be used with varieties of renewable and waste energy source coupled to produce ultrapure water makes it a competitive choice. One of the major drawbacks of MD is the fouling and pore wetting of the membrane surface, and therefore modifications to membrane surface characteristics and combining MD with other techniques are necessary for successful rejection of all sorts of organic, inorganic and biological contaminants, except few. One of them is household wastewater containing common laundry detergent sodium dodecylbenzenesulfonate. Although it has been reported that alkaline surfactant causes pore wetting in hydrophobic membranes, but the extent of damage and the severe drop in permeate quality has not been reported. In this work, the preliminary experiments have been carried out with standard laundry wastewater and it has been observed that commercially available hydrophobic polytetrafluroethylene membrane permits all the constituents of the feed water in presence of small amount of laundry detergent. Complete pore wetting of the membrane makes it reach very high permeate flux (40 L/m2 h) and the distillate quality is near to the feed water (>2,400 µS/cm). A simple technique was developed to prevent pore wetting, by combining hydrophilic and hydrophobic membrane without using any interfacial-bonding agent or crosslinking agent. This simple technique successfully produced pure distillate from feed water containing detergent with a conductivity of 12–20 µS/cm. Desalination Publications 2018 Article PeerReviewed Siddique, Istiaq Jamil and Bahar, Rubina and Ibrahim, Shaliza and Al Hazza, Muataz Hazza Faizi (2018) Performance of combined PTFE hydrophilic and hydrophobic membrane during laundry/detergent wastewater treatment by air gap membrane distillation (AGMD): an experimental study. Desalination and Water Treatment, 127. pp. 255-261. ISSN 1944-3994, DOI https://doi.org/10.5004/dwt.2018.22757 <https://doi.org/10.5004/dwt.2018.22757>. https://doi.org/10.5004/dwt.2018.22757 doi:10.5004/dwt.2018.22757 |
| spellingShingle | TA Engineering (General). Civil engineering (General) Siddique, Istiaq Jamil Bahar, Rubina Ibrahim, Shaliza Al Hazza, Muataz Hazza Faizi Performance of combined PTFE hydrophilic and hydrophobic membrane during laundry/detergent wastewater treatment by air gap membrane distillation (AGMD): an experimental study |
| title | Performance of combined PTFE hydrophilic and hydrophobic membrane during laundry/detergent wastewater treatment by air gap membrane distillation (AGMD): an experimental study |
| title_full | Performance of combined PTFE hydrophilic and hydrophobic membrane during laundry/detergent wastewater treatment by air gap membrane distillation (AGMD): an experimental study |
| title_fullStr | Performance of combined PTFE hydrophilic and hydrophobic membrane during laundry/detergent wastewater treatment by air gap membrane distillation (AGMD): an experimental study |
| title_full_unstemmed | Performance of combined PTFE hydrophilic and hydrophobic membrane during laundry/detergent wastewater treatment by air gap membrane distillation (AGMD): an experimental study |
| title_short | Performance of combined PTFE hydrophilic and hydrophobic membrane during laundry/detergent wastewater treatment by air gap membrane distillation (AGMD): an experimental study |
| title_sort | performance of combined ptfe hydrophilic and hydrophobic membrane during laundry detergent wastewater treatment by air gap membrane distillation agmd an experimental study |
| topic | TA Engineering (General). Civil engineering (General) |
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