You may find these articles helpful to your research as they provide a review about the recent advancements in the application of nanoparticles for water/contaminated water/ wastewater treatment.
You may find these articles helpful to your research as they provide a review about the recent advancements in the application of nanoparticles for water/contaminated water/ wastewater treatment.
Dear Sara, Natural Organic Matter (NOM) in surface water usually refers to humic and fulvic acids that are decayed by-products of plants such as those found in surface waters shallow well aquifers. Humic and fulvic acids contain hydrophilic and lipophilic moieties, therefore it is expected that the interactions of these compounds will be higher with polymers having hydrophilic and lipophilic moieties. An example for a success of a polymer with balanced HLB (hydrophilic lipophilic balance) is a thin film composite formed on the interface of NF membrane as a result of the reaction of polyfunctional amine and polyfunctional acid chloride. I would suggest to use a polymer which consists of tetraalkylammonium moiety (cationic moiety) which has the capability to attract the carboxylate anions of humic and fulvic acids (anionic moiety). For further information regarding modified NF membranes and the types of functional groups utilized to increase the efficiency of such membranes, which can be utilized for the preparation of your polymer substrate, please see the following link: http://www.sciencedirect.com/science/article/pii/S0079642512000503 Hoping this will be helpful, Rafik
Dear Sara, Natural Organic Matter (NOM) in surface water usually refers to humic and fulvic acids that are decayed by-products of plants such as those found in surface waters shallow well aquifers. Humic and fulvic acids contain hydrophilic and lipophilic moieties, therefore it is expected that the interactions of these compounds will be higher with polymers having hydrophilic and lipophilic moieties. An example for a success of a polymer with balanced HLB (hydrophilic lipophilic balance) is a thin film composite formed on the interface of NF membrane as a result of the reaction of polyfunctional amine and polyfunctional acid chloride. I would suggest to use a polymer which consists of tetraalkylammonium moiety (cationic moiety) which has the capability to attract the carboxylate anions of humic and fulvic acids (anionic moiety). For further information regarding modified NF membranes and the types of functional groups utilized to increase the efficiency of such membranes, which can be utilized for the preparation of your polymer substrate, please see the following link: http://www.sciencedirect.com/science/article/pii/S0079642512000503 Hoping this will be helpful, Rafik
Hi, Basically your feed contains water, so using hydrophilic polymer is advisable. You can use substrate such as PSF or PI. PSF is hydrophobic but still showing good water permeability while PI is hydrophilic which will give higher flux. Rejection could be increased by using dense substrate rather than more porous, in case of hydrophilic polymers such as PI. In addition, interaction between top layer and substrate need to be consider. I hope this helps you.
Hi, Basically your feed contains water, so using hydrophilic polymer is advisable. You can use substrate such as PSF or PI. PSF is hydrophobic but still showing good water permeability while PI is hydrophilic which will give higher flux. Rejection could be increased by using dense substrate rather than more porous, in case of hydrophilic polymers such as PI. In addition, interaction between top layer and substrate need to be consider. I hope this helps you.
Dear Parima and Rafik,
Thanks for your prompt replies and valuable suggestions.
Dear Parima and Rafik,
Thanks for your prompt replies and valuable suggestions.
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VOTE
You may find these articles helpful to your research as they provide a review about the recent advancements in the application of nanoparticles for water/contaminated water/ wastewater treatment.
- Potential of Magnetic Nanoferrites in Removal of Heavy Metals from Contaminated Water: Mini Review. https://doi.org/10.1007/s10948-020-05657-1
- Recent advances in synthesis, characterization, and applications of nanoparticles for contaminated water treatment- A review. https://doi.org/10.1016/j.ceramint.2020.09.050
Thanks and Regards. Feel free to contact me if you need to.You may find these articles helpful to your research as they provide a review about the recent advancements in the application of nanoparticles for water/contaminated water/ wastewater treatment.
- Potential of Magnetic Nanoferrites in Removal of Heavy Metals from Contaminated Water: Mini Review. https://doi.org/10.1007/s10948-020-05657-1
- Recent advances in synthesis, characterization, and applications of nanoparticles for contaminated water treatment- A review. https://doi.org/10.1016/j.ceramint.2020.09.050
Thanks and Regards. Feel free to contact me if you need to.More
VOTE
Dear Sara,
Natural Organic Matter (NOM) in surface water usually refers to humic and fulvic
acids that are decayed by-products of plants such as those found in surface waters shallow well aquifers. Humic and fulvic acids contain hydrophilic and lipophilic moieties, therefore it is expected that the interactions of these compounds will be higher with polymers having hydrophilic and lipophilic moieties.
An example for a success of a polymer with balanced HLB (hydrophilic lipophilic balance) is a thin film composite formed on the interface of NF membrane as a result of the reaction of polyfunctional amine and polyfunctional acid chloride.
I would suggest to use a polymer which consists of tetraalkylammonium moiety (cationic moiety) which has the capability to attract the carboxylate anions of humic and fulvic acids (anionic moiety).
For further information regarding modified NF membranes and the types of functional groups utilized to increase the efficiency of such membranes, which can be utilized for the preparation of your polymer substrate, please see the following link:
http://www.sciencedirect.com/science/article/pii/S0079642512000503
Hoping this will be helpful,
Rafik
Dear Sara,
Natural Organic Matter (NOM) in surface water usually refers to humic and fulvic
acids that are decayed by-products of plants such as those found in surface waters shallow well aquifers. Humic and fulvic acids contain hydrophilic and lipophilic moieties, therefore it is expected that the interactions of these compounds will be higher with polymers having hydrophilic and lipophilic moieties.
An example for a success of a polymer with balanced HLB (hydrophilic lipophilic balance) is a thin film composite formed on the interface of NF membrane as a result of the reaction of polyfunctional amine and polyfunctional acid chloride.
I would suggest to use a polymer which consists of tetraalkylammonium moiety (cationic moiety) which has the capability to attract the carboxylate anions of humic and fulvic acids (anionic moiety).
For further information regarding modified NF membranes and the types of functional groups utilized to increase the efficiency of such membranes, which can be utilized for the preparation of your polymer substrate, please see the following link:
http://www.sciencedirect.com/science/article/pii/S0079642512000503
Hoping this will be helpful,
Rafik
More
VOTE
Hi,
Basically your feed contains water, so using hydrophilic polymer is advisable. You can use substrate such as PSF or PI. PSF is hydrophobic but still showing good water permeability while PI is hydrophilic which will give higher flux.
Rejection could be increased by using dense substrate rather than more porous, in case of hydrophilic polymers such as PI.
In addition, interaction between top layer and substrate need to be consider.
I hope this helps you.
Hi,
Basically your feed contains water, so using hydrophilic polymer is advisable. You can use substrate such as PSF or PI. PSF is hydrophobic but still showing good water permeability while PI is hydrophilic which will give higher flux.
Rejection could be increased by using dense substrate rather than more porous, in case of hydrophilic polymers such as PI.
In addition, interaction between top layer and substrate need to be consider.
I hope this helps you.
More
VOTE