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Combination of coagulation-ultraviolet photocatalytic treatment by using zinc oxide with polyarcylamide and tannin for removal of colour

Combination of coagulation-ultraviolet photocatalytic treatment by using zinc oxide with polyarcylamide and tannin for removal of colour / Wan Nur Azlin Hanis Jumahat
Air adalah komponen yang penting dalam kehidupan seharian kita. Kehadiran bahan kimia toksik dan bakteria boleh mendedahkan hidupan kepada penyakit bawaan air yang berisiko tinggi akibat daripada penggunaan air yang tercermar. Air sisa dari industri tekstil adalah salah satu masalah alam sekitar selain dari isu-isu kecil seperti sisa pepejal dan pengurusan sumber sisa. Terdapat pelbagai jenis pewarna tiruan yang digunakan oleh industri tekstil dan pelepasan dari industri ini mempunyai jumlah air sisa yang besar dan mempunyai kepekatan warna yang tinggi. Air sisa yang mempunyai pewarna tekstil yang tinggi memberi kesan teruk kepada fungsi fotosintetis dalam tumbuhan dan memberi impak kepada kehidupan akuatik kerana penembusan cahaya yang rendah dan penggunaan oksigen. Oleh itu, air sisa tekstil harus dirawat dengan baik sebelum dilepaskan kepada persekitaran. Di dalam kajian ini, berlainan kaedah rawatan untuk merawat air sisa tekstil telah di bentangkan. Dalam kajian ini, proses penggumpalan proses fotopemangkin ultraviolet, dan gabungan pengumpalan-fotopemangkin ultraviolet telah digunakan. Kajian ini juga melibatkan pengubahsuaian zink oksida dengan polyacrylamide dan tannin sebagai komposit polimer untuk mengurangkan pewarna. Pengubahsuaian komposit polimer ini telah disediakan sebagai bahan pengental dan juga fotopemangkin untuk kedua-dua kaedah rawatan dan dicirikan dengan menggunakan kaedah Perubahan Fourier Infra-merah (FTIR). Aktiviti penggumpalan dan fotopemangkin (ZOPAT) menggunakan air sisa mentah tekstil telah dikaji dengan mengoptimumkan parameter seperti kesan nilai pH, dos pemangkin dan masa tindakbalas. Optima peratus pengurangan warna dicapai bagi kaedah UV-fotopemangkin (93.67%) di masa rawatan 24 jam manakala bagi kaedah kombinasi (93.92%) di masa rawatan 4 jam telah dicapai pada kondisi pH 10 dan 800 mg/L dos pemangkin komposit polimer. Penyahwarnaan air sisa tekstil diharapkan apabila komoposit polimer digunakan pada kedua-dua kaedah rawatan ini. _______________________________________________________________________________________________________ Water is an important component in our daily lives. The presence of toxic chemicals and harmful bacteria may expose living things to waterborne diseases and has led a major health risk due to the consumption of contaminated water. Wastewater from the textile industry is one of the many environmental obstructions besides other minor issues like solid waste and resource waste management. There are many types of synthetic dyes that textile industry use and the discharge have massive amounts of highly coloured wastewater. Wastewater with excessive coloured textile sorely effects the photosynthetic function in plant and also impact aquatic lives due to low light penetration and consumption of oxygen. Hence, textile wastewater must be treated properly before being discharged to the environment. In this study, the different treatment methods to treat the textile wastewater is presented. The treatment methods discussed in this study are the coagulation and UV-photocatalytic treatment processes, where both of these methods have been investigated with a combined method. This study involves the modification of zinc oxide with polyacrylamide and tannin as a composite polymer to remove the colour. The objective of this study has been successfully achieved. The modification of composite polymer is prepared as coagulant and catalyst for both treatment methods and it is characterized using the Fourier Transform Infrared Spectroscopy (FTIR) method. The coagulation and photocatalytic activity of ZnO/Tannin/PAM (ZOPAT) using raw textile wastewater is investigated by optimizing parameters such as the effect of pH value, dosage and contact time. The optimum percentage of colour removals obtained for UV-photocatalytic method (93.67%) at 24 hours of treatment period and for combined method (93.92%) at 4 hours of treatment period were achieved at condition of pH 10 and 800 mg/L of the composite polymer dosage. The decolourization of textile wastewater is dependable on the composite polymer used for both treatment methods.
Contributor(s):
Wan Nur Azlin Hanis Jumahat - Author
Primary Item Type:
Final Year Project
Identifiers:
Accession Number :  875008347
Language:
English
Subject Keywords:
Water; waterborne; contaminated
First presented to the public:
6/1/2019
Original Publication Date:
9/27/2019
Previously Published By:
Universiti Sains Malaysia
Place Of Publication:
School of Civil Engineering
Citation:
Extents:
Number of Pages - 117
License Grantor / Date Granted:
  / ( View License )
Date Deposited
2019-09-27 16:54:50.973
Submitter:
Mohd Jasnizam Mohd Salleh

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Combination of coagulation-ultraviolet photocatalytic treatment by using zinc oxide with polyarcylamide and tannin for removal of colour1 2019-09-27 16:54:50.973