The Robusta coffee grounds residues to adsorb the heavy metal Lead (Pb) in the water

Abstract

This paper has been published in IOP Conf. Series: Journal of Physics: Conf. Ser1i2e3s415161748(9200‘1’8“)”012058 Lead (Pb) were toxic. Lead found in pipes, batteries, paint, dyes ceramic glaze, gasoline, and final waste disposal. The robusta coffee grouds residues had high carbon, nitrogen etc which can adsorb heavy metal.The purpose of this study is to analyze the robusta coffee grounds residues to adsorb the Pb in the water. The method of this research is a True Experimental using completely randomized design (CRD) method. There were control groups (C) and three treatments groups (T1; T2;T3; 5gram/ litre; 8gram/ litre; 10gram/ litre) with six repetitions. The robusta coffee ground residues were contacted for 2 hours.Total samples were24 samples which analyzed each parameter of the Pb with Atomic Adsorption Spectophotometry Analysis. The results showed that the more coffee ground residues that are exposed, increasingly turbid. The KS test showed that data were a normal distribution (sig=0,324). One way ANOVA test; Turkey post Hoc showed that there was sig difference between the control and treatment (F=4,326, Sig= 0,017). There were sig difference between control and treatment 2 and 3 (Sig=0,019; Sig=0,038). Robusta coffee grounds residues can reuse to adsorb the Pb pollution in the water. It can be a solution for treating the lead pollution in the water because of it easy to the application.

Pemanfaatan Arang Aktif Tempurung Kelapa (Cocos nucifera) untuk Mengikat Kromium (Cr) (Study Pada Limbah Cair Batik)

“…[4] Cromium pada proses pewarnaan batik, akan keluar pada saat pembilasan kain dan bercampur dengan limbah [5] Salah satu metode yang dapat digunakan untuk menangani limbah logam berat adalah adsorpsi dengan memanfaatkan adsoben bahan organik. Beberapa bahan yang terbukti dapat dimanafaatkan sebagai media adsorben logam berat, antara lain: kulit cangkang coklat [6] arang aktif kulit durian [7] cangkang telur ayam [8] ampas kopi [9] arang aktif ampas kopi [10] cangkang kupang [11] , cangkang telur burung puyuh [ 12] , arang aktif kulit pisang [13 ] dan arang aktif tempurung kelapa [14] .…”

Lead (Pb2+) removal in water using different forms of spent arabica coffee grounds at varying contact time

“…Locally available materials that could be used as low-cost water filter includes coffee grounds, which are oftentimes considered as biodegradable waste materials. In the study of Moelyaningrum et al, Robusta coffee ground residues were able to adsorb lead in water [2].…”