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Fabrication of Polyphospahazene (PPz) membrane on PAN support by Interfacial Polymerization for Gas Separation
Fabrication of Polyphospahazene (PPz) membrane on PAN support by Interfacial Polymerization for Gas Separation
Project Description:
This study explores non-aqueous interfacial polymerization to develop new thin-film on polyacrylonitrile (PAN) and PAN-polydimethylsiloxane (PDMS) support using different monomers, named 4,4′-Dihydroxybiphenyl and phosphonitrilic chloride trimer. A polyphosphazene selective layer is created on porous support with dual solvents, optimized for industrial gas separation requirements. This work offers a practical route forward for the creation of high-performance and effective separation membranes.
Preparation of Free standing films of PPz with both type of solvents (DMSO and Agnique).
Used different solvent for biphenyl monomer to study the PAN stability.
Use PDMS gutter later on PAN support by the dip coating process for the stability of selective polyphosphazene (PPz) layer.
Optimizing different parameters for IP process and Dip coating.
Schematic representation of fabrication method of TFC membranes consisting of a thin selective polyamide layer on top of PAN porous support.
Study the relation between different concentration of surfactants and the pore size of TFC nanofiltration membrane
Study the relation between different concentration of surfactants and the pore size of TFC nanofiltration membrane
Project Description:
This research has been carried out into two parts. Part 1 includes preparation of TFC membrane with a PA thin film in a PAN support and then using different concentration of surfactants to prepare same TFC membrane by interfacial polymerization. While Part 2 comprises the experimental study of PEG-400,200 retention with 7 different pressure and find out the relation of pore size with different concentration of surfactants.
Influence of surfactants on interfacial polymerized nanofiltration membranes for ion separation
Thin film composite membrane preparation by interfacial polymerization
Study of the mass transport relation with different concentration of surfactants incorporation
Study of the pore size relation with different concentration of surfactants incorporation in IP.
Water Flux measurement, PEG retention, Static & Dynamic Water contact angle measurement, AFM, GPC, Ion retention.
Study of the incorporation of covalent organic framework (COF)-type nanostructured porous materials for Gas Separation
Study of the incorporation of covalent organic framework (COF)-type nanostructured porous materials for Gas Separation
Project Description:
This research has been carried out into two parts. Part 1 includes a complete literature study about COF MMMs for gas separation while Part 2 comprises the experimental study of MMM preparation containing a specific COF selected as filler. In this case, the impact of the different synthesized COF on the membrane's functionality for a particular polymer matrix was investigated.
Mechanochemical and Microwave base synthesis of Covalent organic framework (COF).
Fabrication of Mixed Matrix Membrane (MMM) by casting process.
Studies the performance of COF-based MMM for gas separation.
Gas Separation (CO2/CH4 and CO2/N2) plant operation.
Characterization including TGA, XRD, SEM, and FTIR.
Figure: Schematic representation of gas (ozone and oxygen) transfer from the bulk gas phase through the gas boundary layer, porous PES support, dense PDMS membrane, and liquid boundary layer to the bulk liquid. And also represented the Ozone and Oxygen concentration profile in the membrane.
A Theoretical Approach to Ozone and Oxygen Mass Transfer through a Composite Membrane (thin dense PDMS membrane supported by a porous PES membrane)
A Theoretical Approach to Ozone and Oxygen Mass Transfer through a Composite Membrane (thin dense PDMS membrane supported by a porous PES membrane)
Project Description:
A gas/liquid contactor composed of a network of hollow fibers in a cartridge is used to transfer ozone from a gas phase into an aqueous phase, to remove bacteria, viruses, and other pollutants in a drinking water treatment plant.
Gas/Liquid contactor with crossflow current configuration with O3 and O2 transfer through a composite membrane (thin dense PDMS membrane supported by a porous PES membrane).
The main goal of the project is to use a (simplified) model to simulate the suitable operating conditions, which should be chosen to optimize the process, including
Plotting the profiles for pressure and concentrations of O3 and O2 along the length of the module.
Determine the maximum module length that will enable to maintain a pressure within the fiber than 1 bar.
Figure: Various processing methods for the sugarcane industry and the corresponding waste generation.
Efficient production of Biofertilizer using Sugar Industry Waste
Efficient production of Biofertilizer using Sugar Industry Waste
A systematic review of over 100 journals that reflects on the content of valuable elements in sugar industry waste, conversion of valuable products from sugar press mud, bagasse, molasses, and spent wash.
This study also reflects on the current situation of Bangladesh's sugar and distillery industry waste management, with some recommendations to improve the sugar and distillery waste management system.
This work recommends some suggestions for valorizing sugar industry waste including bio-composting, microbial inoculant preparation, and finding the alternative of spent wash in bio-composting.
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