Kajian ini bertujuan untuk menyiasat pendekatan baru menggunakan filem penjerap untuk rawatan air liat. Sekeping filem penjerap diperbuat menggunakan tiga elemen utama iaitu 1-Methyl-2-pyrrolidon (NMP), polysulfone (PSf) dan bentonite. Formulasi terbaik untuk fabrikasi filem penjerap dan prestasi filem penjerap telah dikaji. Penilaian prestasi dilakukan dengan mengkaji kesan yang berbeza seperti kepekatan awal yang berbeza air liat sintetik (100ppm, 150ppm dan 200ppm), suhu (10 ° C, 25 ° C dan 40 ° C), kelajuan pencampuran water bath shaker (50 spm , 105 spm dan 130 spm) dan pH larutan (2, 7 dan 12). Berdasarkan hasil eksperimen yang dijalankan, formulasi yang terbaik untuk filem penjerap dengan menggunakan bentonite 2g sebagai penjerap untuk dos penjerap, 16ml 1-Methyl-2-pyrrolidon (NMP) dan 2g polysulfone (PSf) sebagai pengikat. Kemudian, bagi setiap parameter yang memberikan keputusan yang berbeza, ia menunjukkan bahawa kepekatan awal paling rendah, 100ppm memberikan penyingkiran peratusan tertinggi bagi kalsium dan magnesium. Pada suhu tertinggi, 40°C dan kelajuan campuran water bath shaker, 130 spm memberikan peratusan tertinggi penyingkiran kalsium dan magnesium iaitu (60% kalsium dan 60,34 untuk magnesium) dan (68.97% untuk kalsium dan 53.33% bagi magnesium) masing-masing. Di samping itu, ia juga menunjukkan bahawa peningkatan suhu dan kelajuan water bath shaker, ia boleh meningkatkan jumlah penjerapan. Walau bagaimanapun, bagi parameter pH, ia tidak memberi kesan yang baik sistem penjerapan ini. Tambahan pula, filem penjerap ini boleh digunakan lebih 5 kali untuk kalsium dan penyingkiran magnesium. Akhir sekali, model Freundlich merupakan model terbaik bagi penjerapan kalsium dan magnesium.
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This researched was carried out mainly to investigate the new approach of using adsorbent film for hard water treatment. An adsorbent film was casted using three major elements which are 1-Methyl-2-pyrrolidon (NMP), polysulfone(PSf) and bentonite. The best formulation for adsorbent film fabrication and performance was investigated. Performance evaluation was then performed with different study effects that are different initial concentration of synthetic hard water (100ppm, 150ppm and 200ppm), temperature (10°C, 25°C and 40°C), mixing speed of water bath shaker (50 spm, 105 spm and 130 spm) and pH of solution (2, 7 and 12). Based on the result of extensive experimental works, the best formulation for adsorbent film is using 2g bentonite as adsorbent for dosage of adsorbent, 16mL 1-Methyl-2-pyrrolidon (NMP) as the solvent and 2g polysulfone(PSf) as the binder. Then, for every parameter gave different results, it shows that lowest initial concentration, 100ppm gave the highest percentage removal for calcium and magnesium. The highest temperature, 40°C and mixing speed of water bath shaker, 130 spm gave the highest percentage of calcium and magnesium removal which are (60% for calcium and 60.34 for magnesium) and (68.97% for calcium and 53.33% for magnesium) respectively. In addition, it also shows that increasing the temperature and speed of water bath shaker, it can increase the amount of adsorption. However, for pH parameter, it not compatible in this adsorption system. Furthermore, this adsorbent film can be used more for 5 times for calcium and magnesium removal. Lastly, the Freundlich model for adsorption of calcium and magnesium is better fit.
Adsorbent film for softening hardwater / Muhamad Sharafee Shamsudin