Please use this identifier to cite or link to this item: https://ptsldigital.ukm.my/jspui/handle/123456789/394370
Title: From garbage to gold : an alternative for e-waste management
Authors: Ang Jia Jiunn
Muhammad Arman Aizat Nor Azham Hakim
Noorlin Maaulot
Abdul Amir H. Khadum
Conference Name: International 5th Future Scientist Conference iFSC : breaking boundaries shaping the future
Keywords: Printed circuit boards
Cold electrical contact heads
Sulphuric acid
Aqua regia
Conference Date: 2016
Conference Location: Pusat Permata Pintar Negara Bangi
Abstract: In this research project, a practical and viable method to extract precious metal, in particular gold, from the printed circuit boards collected from e-Waste is conducted. The cold electrical contact heads, is added to a reactive substance, which is 97% cocentrated sulphuric acid to corrode all other substances and leave gold as a leftover. The leftover gold pieces is extracted manually after the process with the use of forceps. On the plus side, based on current calculations, only 5,000 litres of sulphuric acid would be required to extract 1 kg of gold, as compared to the current usage of 500,000 litres of aqua regia per kg of gold. However, future research is still needed to testify its efficiency and eco-friendliness.
Pages: 481-493 p.
Call Number: Q158.5.F838 2017 katsem
Publisher: Bangi :Pusat Permata Pintar Negara,2017.,Bangi
Appears in Collections:Seminar Papers/ Proceedings / Kertas Kerja Seminar/ Prosiding

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