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Degradation of dyes (methylene blue) using natural rubber incorporated with silver nanoparticles in water treatment tankri_

Degradation of dyes (methylene blue) using natural rubber incorporated with silver nanoparticles in water treatment tank / Nur Atiqah Mohamad Khudri_
Air sisa daripada industri tekstil biasanya menghasilkan jumlah air yang banyak kaya dengan warna yang mengandungi sisa pewarna dan sisa toksik. Dalam usaha untuk merendahkan pewarna dari efluen sebelum melepaskan kepada alam sekitar, membran getah asli digabungkan dengan nanopartikel Argentum (NR-Ag) mesra alam telah dikaji. Dalam kajian ini, model pewarna yang telah digunakan adalah Metilena Biru (MB) dan membran-membran bola NR-Ag telah disediakan dengan menggunakan bola memancing apungan yang disalut dengan NR-Ag. Membran-membran bola NR-Ag telah dihasilkan menggunakan rawatan haba yang sederhana dan telah dicirikan menggunakan Spectrophotometer UV-Vis dan Spektroskopi Serapan Atom (AAS). Aktiviti pemangkinan membran bola NR-Ag untuk menyahwarnakan pewarna MB adalah dikaji menggunakan kalium borohydride (KBH4) sebagai agen penurunan. Laporan ini menekankan kesan kuantiti bola NR-Ag, kesan tekanan udara dan kesan kepekatan KBH4 pada kadar penyahwarnaan MB oleh KBH4. Kadar penyahwarnaan didapati meningkat dengan jumlah bola NR-Ag, serta dengan peningkatan tekanan udara. Jumlah optimum bola NR-Ag adalah 10 dan kadar tekanan udara yang terbaik adalah 0.6 bar. Tambahan lagi, proses penyahwarnaan meningkat dengan kadar kepekatan KBH4 yang tinggi. _______________________________________________________________________________________________________ Wastewater from textile industries commonly produce large amount of water often rich in colour containing residues of dyes and toxicity. In order to degrade dyes from the effluent before releasing to the environment, the natural rubber incorporated with silver nanoparticles (NR-Ag) were studied. In this work, the dye that used as a model of dye was methylene blue (M) and the NR-Ag ball membranes have been prepared using fishing float ball coated with NR-Ag. The NR-Ag ball membranes were formed using mild heat treatments and characterized using UV-Vis Spectrophotometer and Atomic Absorption Spectroscopy (AAS). Catalytic activity of the NR-Ag ball membranes for the degradation of MB dye was studies using potassium borohydride (KBH4) as reducing agent. The report emphasizes the effect of quantity of NR-Ag balls, the effect of air pressure and the effect of KBH4 concentration on decolourization rate of MB by KBH4. The rate of decolourization was found to increase with increasing amount of NR-Ag balls and with increasing of air pressure. The optimum amount of NR-Ag ball was 10 and the best air pressure rate was 0.6 bar. Furthermore, the process of decolourization increased with higher concentration of KBH4.
Contributor(s):
Nur Atiqah Mohamad Khudri - Author
Primary Item Type:
Final Year Project
Identifiers:
Accession Number : 
Barcode : 
Language:
English
Subject Keywords:
Wastewater; environment; NR-Ag ball
First presented to the public:
6/1/2017
Original Publication Date:
3/26/2018
Previously Published By:
Universiti Sains Malaysia
Place Of Publication:
School of Civil Engineering
Citation:
Extents:
Number of Pages - 80
License Grantor / Date Granted:
  / ( View License )
Date Deposited
2018-03-26 11:13:48.937
Date Last Updated
2020-05-20 23:21:24.06
Submitter:
Mohd Jasnizam Mohd Salleh

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