The enhancement of heavy metal removal from polluted river water treatment by integrated carbon-aluminium electrodes using electrochemical method

International Nuclear Science, Technology and Engineering Conference 2017

原子能学

Yussuf, N.M.^2 ; Embong, Z.^1,2 ; Abdullah, S.^2 ; Masirin, M.I.M.^1,3 ; Tajudin, S.A.A.^1,3 ; Ahmad, S.^4 ; Sahari, S.K.^6 ; Anuar, A.A.^5 ; Maxwell, O.^7

Research Centre for Soft Soil (RECESS), Office for Research Innovation, Commercialization and Consultancy Management (ORICC), Universiti Tun Hussein Onn Malaysia, Malaysia^1

Faculty of Science, Technology and Human Development, Universiti Tun Hussein Onn Malaysia, Malaysia^2

Faculty of Civil and Environment Engineering, Universiti Tun Hussein Onn Malaysia, Malaysia^3

Centre for Language Study, Universiti Tun Hussein Onn Malaysia, Malaysia^4

Malaysia Nuclear Agency, Selangor Kajang

42300, Malaysia^5

Faculty of Engineering, Universiti Malaysia Sarawak (UNIMAS), Sarawak, Kota Samarahan

94300, Malaysia^6

College of Science and Technology, Department of Physics, Covenant University, Ota, Ogun State, Nigeria^7

关键词: ELectrochemical methods;    Electrochemical treatments;    Electrode configurations;    Heavy metal accumulation;    Heavy metal removal;    Integrated electrodes;    Parameter conditions;    Polluted river waters;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/298/1/012006/pdf
DOI  :  10.1088/1757-899X/298/1/012006

来源: IOP

【 摘 要 】

The heavy metal removal enhancement from polluted river water was investigated using two types of electrodes consist of integrated carbon-aluminium and a conventional aluminium plate electrode at laboratory-scale experiments. In the integrated electrode systems, the aluminium electrode surface was coated with carbon using mixed slurry containing carbon black, polyvinyl acetate and methanol. The electrochemical treatment was conducted on the parameter condition of 90V applied voltage, 3cm of electrode distance and 60 minutes of electrolysis operational time. Surface of both electrodes was investigated for pre and post electrolysis treatment by using SEM-EDX analytical technique. Comparison between both of the electrode configuration exhibits that more metals were accumulated on carbon integrated electrode surfaces for both anode and cathode, and more heavy metals were detected on the cathode. The atomic percentage of metals distributed on the cathode conventional electrode surface consist of Al (94.62%), Zn (1.19%), Mn (0.73%), Fe (2.81%) and Cu (0.64%), while on the anode contained O (12.08%), Al (87.63%) and Zn (0.29%). Meanwhile, cathode surface of integrated electrode was accumulated with more metals; O (75.40%), Al (21.06%), Zn (0.45%), Mn (0.22), Fe (0.29%), Cu (0.84%), Pb (0.47%), Na (0.94%), Cr (0.08%), Ni (0.02%) and Ag (0.22%), while on anode contain Al (3.48%), Fe (0.49 %), C (95.77%), and Pb (0.26%). According to this experiment, it was found that integrated carbon-aluminium electrodes have a great potential to accumulate more heavy metal species from polluted water compare to the conventional aluminium electrode. Here, heavy metal accumulation process obviously very significant on the cathode surface.