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Adsorption of doxycycline and methylene blue onto Electric Arc Furnace (EAF) steel slag derived adsorbent

Adsorption of doxycycline and methylene blue onto Electric Arc Furnace (EAF) steel slag derived adsorbent / Amira Aziema Abdullah
Tujuan penyelidikan ini adalah untuk menilai keupayaan penjerapan zeolit-kaolin dan zeolit untuk menghapuskan Doxycycline, (DO) dan Metilena biru, (MB) daripada larutan akueus. Dalam kajian ini, Elektrik-arka-relau (EAR) keluli sanga yang merupakan sisa industri pembuatan keluli yang digunakan untuk pembentukan zeolit. Nisbah sampel kaolin yang berbeza telah dikaji untuk mendapatkan penjerap yang lebih baik dengan menggunakan 3 jenis farmaseutikal (Tetracycline (TR), Cephalexin (CP) dan (DO)) dan pewarna (MB). Prestasi penjerapan zeolit-kaolin untuk DO dan zeolit untuk penyingkiran metilena biru telah diuji dengan menggunakan kaedah kelompok. Kajian-kajian ini telah memberi tumpuan kepada tiga parameter iaitu kesan kepekatan awal cecair atau larutan dan pewarna (25−400 𝑚𝑔𝐿⁄), suhu (30 ℃−50 ℃) dan pH (3−13) ke atas penjerapan DO dan MB. Model isoterma Freundlich dan Langmuir telah digunakan pada data penjerapan. Model isoterma Freundlich untuk DO dan MB menunjukkan data penjerapan yang tebaik berbanding model isoterma Langmuir. Untuk penjerapan kinetik, pseudo-tertib kedua membuktikan bahawa proses penjerapan adalah lebih baik daripada pseudo-tertib pertama. Nilai maksimum kapasiti penjerapan zeolit-kaolin untuk DO adalah 188.95,289.00 dan 356.70 mgg⁄ dan 101.75,120.40 dan 139.35 mgg⁄ untuk zeolit untuk metilena biru masing-masing pada 30,40 dan 50 ℃. Berdasarkan keputusan yang diperolehi, ini membuktikan bahawa zeolit-kaolin dan zeolit adalah salah satu penjerap yang memperuntukkan kos yang rendah untuk digunakan sebagai penjerap untuk menyingkirkan farmaseutikal dan pewarna daripada sisa air. _______________________________________________________________________________________________________ The aim of this work was to evaluate the adsorption capability of zeolite-kaolin and zeolite to remove Doxycycline, (DO) and Methylene blue, (MB) from aqueous solution. In this study, Electric-arc-furnace (EAF) steel slag which is a waste of steel making industry are used for formation of synthetic zeolite. Different kaolin ratios sample has been studied in order to obtain a better adsorbent by using 3 types of pharmaceuticals (Tetracycline (TR), Cephalexin (CP) and (DO)) and dye (MB). The adsorption performance of zeolite-kaolin for DO and zeolite for MB removal were tested by using a batch method. These studies had focussed on three parameters which are effects of initial concentration of pharmaceutical and dye solution (25 to 400 mgL⁄), temperature (30℃ to 50℃) and pH (3 to 13) on the adsorption of DO and MB. Freundlich and Langmuir isotherms were applied on the adsorption data showed that data are best fitted with Freundlich isotherm model for DO and MB solution. For adsorption kinetic, Pseudo-second-order kinetics proved that the adsorption process are much better than pseudo-first-order kinetics. The maximum adsorption capacity values of the zeolite-kaolin composite for DO were 188.95,289.00 and 356.70 mgg⁄ and the adsorption capacity values of the zeolite composite for MB were 101.75,120.40 and 139.35 mgg⁄ at 30,40 and 50℃, respectively. Based on the result obtained, it can be proved that the zeolite-kaolin and zeolite composite could provide basis for more low-cost composite to be used as adsorbents for pharmaceutical and dye removal.
Contributor(s):
Amira Aziema Abdullah - Author
Primary Item Type:
Final Year Project
Identifiers:
Barcode : 00003107129
Accession Number : 875007249
Language:
English
Subject Keywords:
zeolite-kaolin; (EAF) steel slag; adsorption capacity values
First presented to the public:
5/1/2017
Original Publication Date:
4/24/2018
Previously Published By:
Universiti Sains Malaysia
Place Of Publication:
School of Chemical Engineering
Citation:
Extents:
Number of Pages - 82
License Grantor / Date Granted:
  / ( View License )
Date Deposited
2018-04-24 11:49:08.187
Date Last Updated
2020-04-26 10:54:48.442
Submitter:
Mohd Jasnizam Mohd Salleh

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Adsorption of doxycycline and methylene blue onto Electric Arc Furnace (EAF) steel slag derived adsorbent1 2018-04-24 11:49:08.187