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Activated carbon, limestone and alginate as a composite adsorbent for river water treatment

Activated carbon, limestone and alginate as a composite adsorbent for river water treatment / Muhammad Azzim Bukhori
Pencemaran air telah menjadi satu masalah yang serius kepada alam sekitar dan kesihatan manusia. Ia boleh menjejaskan badan manusia jika air yang tercemar kerap digunakan. Oleh itu, rawatan air sisa telah diberikan perhatian baru-baru ini dengan proses penjerapan menggunakan adsorben kos rendah. Dalam kajian ini, proses penjerapan telah diiktiraf sebagai salah satu proses yang mempunyai kelebihan dari segi kos permulaan yang rendah, kemudahan operasi dan reka bentuk mudah. Permohonan penjerap komposit seperti gabungan karbon diaktifkan, batu kapur, alginate sebagai pengikat dan kemolaran kalsium klorida dehidrasi telah dijalankan untuk menilai kesesuaian media komposit untuk digunakan untuk rawatan air sisa. Dua nisbah bahan penjerap yang digubah telah disediakan sebagai media untuk mengeluarkan kekeruhan dan warna dalam air sisa. Nisbah yang telah disediakan adalah AC (3): LS (7): AG (2) dan AC (5): LS (5): AG (2). Selepas campuran adsorben disediakan, satu kajian kelompok awal telah dijalankan untuk memilih keadaan optimum untuk faktor-faktor bagi setiap nisbah. Faktor-faktor yang telah diuji adalah dos bahan penjerap, masa sentuhan, kelajuan goncangan dan masa penetapan. Selepas diperolehi keadaan optimum untuk faktor, kedua-dua nisbah telah diuji untuk memilih nisbah terbaik penjerap. Hasil kajian menunjukkan bahawa keadaan optimum untuk faktor-faktor untuk nisbah 3: 7: 2 adalah 9 gram dos bahan penjerap, 60 minit masa sentuhan, 150 rpm kelajuan goncangan dan 60 minit masa penurunan. Sementara itu, keadaan optimum untuk nisbah 5: 5: 2 adalah 13 gram dos bahan penjerap, 80 minit masa sentuhan, 150 rpm kelajuan goncangan dan 60 minit masa penurunan. Keputusan untuk membandingkan kedua-dua nisbah menunjukkan bahawa nisbah 5: 5: 2 mempunyai penyingkiran peratusan yang lebih tinggi kekeruhan dan warna daripada nisbah 3: 7: 2 dari segi faktor yang dipilih. _______________________________________________________________________________________________________ Water contamination has been a serious problem to the environment and human health. It can adversely affect the human body if contaminated water is consumed regularly. Thus, wastewater treatment has been given much attention recently by the adsorption process using the low cost adsorbents. In this study, adsorption process has been recognized as one of the process that had advantages in terms of low starting cost, ease of operation and simplified design. The application of composite adsorbent such as a combination of activated carbon, limestone, alginate as a binder and molarity of calcium chloride dehydrated was carried out to assess the suitability of composite media to be applied for wastewater treatment. Two ratios of the composite adsorbent had been prepared as the media for removing turbidity and colour in wastewater. The ratios that had been prepared were AC (3): LS (7): AG (2) and AC (5): LS (5): AG (2). After prepared the composited adsorbent, a preliminary batch studies were carry out to choose the optimum conditions for the factors of every ratio. The factors that had been tested were dosages of adsorbent, contact time, shaking speed and settling time. After obtaining the optimum condition for the factors, both ratios had been tested to choose the best ratio for the adsorbent. Results showed that the optimum conditions for the factors for the ratio 3:7:2 were 9 grams of dosages of the adsorbent, 60 minutes of the contact time, 150 rpm of the shaking speed and 60 minutes of the settling time. Meanwhile, the optimum condition for the ratio 5:5:2 were 13 grams dosages of the adsorbent, 80 minutes of the contact time, 150 rpm of the shaking speed and 60 minutes of the settling time. The results for comparing both ratios showed that the ratio 5:5:2 had the higher percentage removal of turbidity and colour than ratio 3:7:2 in terms of the selecting factors.
Contributor(s):
Muhammad Azzim Bukhori - Author
Primary Item Type:
Final Year Project
Language:
English
Subject Keywords:
Water contamination; wastewater treatment; composite adsorbent
First presented to the public:
6/1/2017
Original Publication Date:
3/21/2018
Previously Published By:
Universiti Sains Malaysia
Place Of Publication:
School of Civil Engineering
Citation:
Extents:
Number of Pages - 104
License Grantor / Date Granted:
  / ( View License )
Date Deposited
2018-03-21 15:46:14.106
Date Last Updated
2020-05-12 22:36:03.143
Submitter:
Mohd Jasnizam Mohd Salleh

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