Development Of Non-Woven Fabric Supported Functionalized Multi-Walled Carbon Nanotube(MWCNT)/Polyethersulfone (PES) Membrane For Water Treatment In Sarawak Rural Area

Bakri, Julian (2018) Development Of Non-Woven Fabric Supported Functionalized Multi-Walled Carbon Nanotube(MWCNT)/Polyethersulfone (PES) Membrane For Water Treatment In Sarawak Rural Area. Project Report. UTeM, Melaka. (Submitted)

Text Development Of Non-Woven Fabric Supported Functionalized Multi-Walled Carbon Nanotube(MWCNT) Polyethersulfone (PES) Membrane For Water Treatment In Sarawak Rural Area - Julian Bakri - 24 Pages.pdf - Submitted Version Download (275kB)

Abstract

Access to clean water in rural area is contributed by increasing water pollution and lack of treatment facility. Membrane technology paves a path for efficient water treatment and ultimately access to clean water supply with the help of nano-fillers such as CNT. The capability of a thin film composite membrane comprising of functionalized MWCNT, PES and NWF, to treat rural surface water in Sarawak has been studied. The objectives of this project was to fabricate a thin film composite membrane with functionalized MWCNT, to characterize the membrane and analyse the membrane performance in treating BOD/COD level of Sarawak surface water. MWCNT was functionalized using hot stirring with different strengths of acid treatment which are strong and mild. The MWCNT/PES slurry was made using NMP as organic solvent under the condition of hot magnetic stirring. Membrane was fabricated using immersion precipitation technique. Raman analysis revealed that acid-treated MWCNT showed defect in its structure, as reflected in the ID/IG ratio. TEM was employed to observe effect of acid on the morphology of the MWCNT in terms of debundling, length shortening and sidewall defect. FTIR characterization technique was used to distinguish the membranes by identifying the functional groups present. Morphological analysis of the membrane was done using SEM to understand the dispersion of MWCNT in the membrane and PES formation on NWF substrate. Water samples were collected from two sources located in Sarawak, Satow Waterfall, Kpg. Bobak and Rantau Panjang River, Bt. Kawa and send for BOD and COD testing. Three types of membranes were chosen to filter the samples using vacuum filtration. Performance of membrane was evaluated in terms of BOD and COD reduction and colour and turbidity inspection in filtered samples. Membrane showed particulates retention capability with the decolouration of Rantau Panjang River samples. NWF Raw MWCNT/PES membrane showed the most consistent result with 0% change in BOD level and up to 76% COD level reduction.

Actions (login required)

View Item