Adsorption Of Reactive Dyes By Hexadecylamine And 3-Aminopropyl Triethoxysilane Modified Chitosan Beads

Nasrollah Vakili, Mohammadtaghi Vakili (2016) Adsorption Of Reactive Dyes By Hexadecylamine And 3-Aminopropyl Triethoxysilane Modified Chitosan Beads. PhD thesis, Universiti Sains Malaysia.

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    Abstract

    Industri tekstil telah mengalami pertumbuhan pesat dalam tahun-tahun kebelakangan ini. Dalam industri ini, pelbagai jenis pewarna telah digunakan untuk tujuan mewarna. Akibatnya, air sisa industri ini mengandungi sejumlah besar warna dan sebatian toksik yang akan memudaratkan alam sekitar jika tidak dirawat. Oleh itu, kumbahan tekstil mempunyai keperluan untuk dirawat dengan kaedah yang cekap sebelum dilepaskan ke saliran air. Di antara semua kaedah rawatan, proses penjerapan didapati sebagai kaedah yang berkesan. Kitosan (CS) merupakan salah satu polimer tabii jadi yang boleh didapati secara meluas. CS telah terbukti sebagai penjerap warna yang berkesan kerana sifat-sifatnya seperti mudah untuk biodegradasi, ciri kationik dan harga yang rendah. Walau bagaimanapun, CS mentah mempunyai ciri-ciri yang mengehadkan prestasi penjerapan seperti kawasan permukaan dan kapasiti penjerapan yang rendah. Oleh itu, CS perlu diubah suai sebelum digunakan sebagai penjerap. Dalam kajian ini, CS telah diubah suai dari segi fizikal dan kimia dan kemudian telah digunakan sebagai penjerap pewarna reaktif (reaktif biru 4 (RB4) dan reaktif hitam 5 (RB5)) dan untuk air sisa tekstil sebenar. Textile industry has experienced exponential growth in recent years. In these industries, many different types of dye are being used for coloring purposes. As a result, the effluent of these industries contains large amount of color and toxic compounds. These colors and toxic compounds would be detrimental to the environment if they are left untreated. As such, the textile effluent has a dye need to be treated with an efficient method before being released into water bodies. Among all treatments, adsorption process is found to be an effective method for industrial effluents treatment. Chitosan (CS) is one of abundantly available natural polymers and is an effective adsorbent due to its specific adsorption properties such as biodegradability, cationicity and low price. However, the raw CS suffers from some draw backs such as low surface area and low adsorption capacity which limit its adsorption performance. Therefore, it is necessary for CS to be modified prior to its use as an adsorbent. In the present study CS, was modified physically and chemically and then applied for adsorption of reactive dyes (reactive blue 4 (RB4) and reactive black 5(RB5)) and real textile wastewater.

    Item Type: Thesis (PhD)
    Subjects: T Technology > T Technology (General) > T1-995 Technology(General)
    Divisions: Pusat Pengajian Teknologi Industri (School of Industrial Technology) > Thesis
    Depositing User: Mr Noorazilan Noordin
    Date Deposited: 10 Feb 2017 09:20
    Last Modified: 17 Apr 2017 14:53
    URI: http://eprints.usm.my/id/eprint/31993

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