Sains Malaysiana 53(8)(2024): 2013-2020
http://doi.org/10.17576/jsm-2024-5308-23
Pendekatan Penghasilan Membran Polimer dengan Penggunaan Semula Sisa Plastik Polistiren untuk Rawatan Air Sisa
(Polymer Membrane Production Approach with Reuse of Polystyrene Plastic
Waste for Wastewater Treatment)
TEOW YEIT HAAN1,2,3*, VISHNU I.SUREASH1,
NUR ‘DAYANA BATRISYA ZAINAL1, THURGASHINY
VEERAMANI1 & MUHAMMAD ILHAM BACHO1
1Department
of Chemical and Process Engineering, Faculty of Engineering and Built
Environment, Universiti Kebangsaan Malaysia, 43600 UKM Bangi, Selangor, Malaysia
2Research
Centre for Sustainable Process Technology (CESPRO), Universiti Kebangsaan Malaysia, 43600 UKM Bangi,
Selangor, Malaysia
Diserahkan: 28 April 2024/Diterima: 24 Jun 2024
Abstrak
Penyelidikan ini bertujuan untuk mengkaji potensi penggunaan semula sisa plastik polistirena (PS) dalam sintesis membran polimer untuk aplikasi rawatan air sisa. Penyelidikan ini dipicu oleh kebimbangan global mengenai pencemaran plastik dan keperluan untuk mencari alternatif yang lebih mampan dalam pengelolaan sisa plastik. Dengan menggabungkan PS dengan nanozarah TiO2, penyelidikan ini mengkaji pengaruh jenis pelarut (N-metil-2-pirrolidona (NMP) dan N,N-dimetilasetamida (DMAc)) serta kepekatan TiO2 (0.025-0.100 g/L) terhadap sifat dan prestasi membran yang dihasilkan. Membran polimer PS disintesis melalui kaedah penyongsangan fasa. Sifat membran seperti sudut sentuhan, keliangan dan saiz liang dianalisis untuk pencirian membran, manakala prestasi membran seperti fluks resapan, keupayaan penolakan terhadap asid humik diuji dengan menggunakan sistem penapisan membran buntu. Keputusan kajian menunjukkan bahawa jenis pelarut dan kepekatan TiO2 mempengaruhi sifat membran yang dihasilkan. Membran yang disintesis menggunakan NMP sebagai pelarut menunjukkan fluks resapan yang lebih tinggi, manakala DMAc memberikan keupayaan penolakan yang lebih tinggi terhadap asid humik. Penambahan TiO2 meningkatkan sifat hidrofilik membran yang mendorong kepada penembusan molekul air melalui matriks membran, tetapi juga berpotensi mengurangkan fluks resapan jika kepekatan TiO2 terlalu tinggi. Kesimpulannya, kajian ini menunjukkan potensi besar dalam penggunaan semula sisa plastik PS untuk pembuatan membran polimer untuk aplikasi rawatan air sisa. Dengan pemahaman yang lebih mendalam tentang faktor yang mempengaruhi sifat membran, kita dapat memperbaiki reka bentuk membran untuk meningkatkan prestasi dalam aplikasi penapisan air. Ini memberikan sumbangan yang signifikan kepada usaha global dalam mengurangkan pencemaran plastik dan menyediakan sumber air yang bersih dan mampan.
Kata kunci: Membran polimer; penapisan air sisa; penggunaan semula sisa plastik; polistirena; rawatan air
Abstract
This study aims to explore the potential reuse of polystyrene
(PS) plastic waste in the synthesis of polymeric membrane for wastewater
treatment applications. The research was prompted by global concerns regarding
plastic pollution and the imperative to identify sustainable alternatives for
managing plastic waste. Through the incorporation of TiO2 nanoparticles into PS, this study investigated the influence of solvent type
(N-methyl-2-pyrrolidone (NMP) and N,N-dimethylacetamide (DMAc)) and TiO2 concentration
(0.025-0.100 g/L) on the properties and performance of the produced membrane.
PS polymer membranes were synthesized using the phase inversion method.
Membrane properties such as contact angle, porosity, and pore size were
analyzed for membrane’s characterization. Membrane performance, including
permeate flux and humic acid rejection, was tested
using a dead-end membrane filtration system. The results of the study indicate
that the type of solvent and the concentration of TiO2 affect the
properties of the produced membrane. Membranes synthesized using NMP as a
solvent exhibited a higher permeate flux, while DMAc provided greater rejection
ability against humic acid. The incorporation of TiO2 enhanced the hydrophilicity of the membrane, facilitating the penetration of
water molecules through the membrane matrix. However, excessive TiO2 concentration may decrease permeate flux. In conclusion, this study
demonstrates promising potential in the reuse of PS plastic waste for the
manufacture of polymeric membranes in wastewater treatment applications.
Enhanced comprehension of the factors influencing membrane properties can
facilitate the refinement of membrane design, thereby enhancing performance in
its applications. This research contributes significantly to global efforts to
mitigate plastic pollution and ensure the provision of clean and sustainable
water sources.
Keywords: Polymeric
membrane; polystyrene;
reuse of waste plastic; wastewater filtration; water treatment
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*Pengarang untuk surat-menyurat; email: yh_teow@ukm.edu.my
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