Heavy Metal Reducing from Kotagede Silver Handicraft Waste Using Natural Zeolite and Synthetic Zeolite

Hernawati, Triheni and Ilcham, Adi (2022) Heavy Metal Reducing from Kotagede Silver Handicraft Waste Using Natural Zeolite and Synthetic Zeolite. In: 1st International Conference on Engineering Optimization and Management in Industrial Applications "Advancement of Optimization, Engineering Technology, and Management for Sustainable Environment", 29 Oct 2022, Yogyakarta.

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Abstract

In order to keep our environment healthy, spreading of heavy metals should be controlled. Adsorption of heavy metals using zeolite is an alternative to limit the metals. It is known that zeolites have an ability as heavy metal adsorbent. In this study, natural zeolite and synthetic zeolite were used for removing heavy metal from Kotagede metal craft waste. In this study, two adsorbents were used. First adsorbent which called mixed-adsorbent consist of mixture of natural zeolite - rice husk ash. Second adsorbent is synthetic zeolite which made from rice husk. The natural zeolite were supplied from Wonosari Yogyakarta and rice husk for synthetic zeolite supplied from Malang. Adsorption of heavy metals was carried out by mixing waste containing heavy metals with the adsorbent. Mixing was carried out for a certain time and observed changes in the content of heavy metals in the waste. The observations on waste after processing shows that pH of adsorbents do not influence the adsorption. Conversely, contact time affects the adsorption of heavy metal from the waste. Within first of 60 minutes the mixed-adsorbent can adsorb Ag metal by 56.92% while the synthetic zeolite is able to adsorb Ag metal as much as 51.28%. In the study of the effect of activator concentration, it is shown that 3.75 N of solution has effect on the Ag adsorption of 46.15% and synthetic zeolite reaches the Ag adsorption of 44.10%.

Item Type:	Conference or Workshop Item (Paper)
Uncontrolled Keywords:	Zeolite, Synthetic, Adsorption, Heavy Metal, Rice Husk Ash
Subjects:	T Technology > T Technology (General)
Divisions:	Faculty of Engineering, Science and Mathematics > School of Engineering Sciences
Depositing User:	ST, M.Sc Astrid Wahyu Adventri Wibowo
Date Deposited:	05 Jan 2023 06:35
Last Modified:	05 Jan 2023 06:36
URI:	http://eprints.upnyk.ac.id/id/eprint/32192

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