Pengaruh Waktu Kontak Terhadap Efisiensi Adsorpsi Ion Logam Cu(II) Pada Karbon Aktif Bunga Pinus Merkusii

Sari Rizky, Renovalina Silalahi

Abstract


Research on the utilization of ultrasonic wave energy in the preparation of activated carbon bio-adsorbents from waste of Pinus merkusii pine flowers for the adsorption of heavy metal ions Cu(II) has been conducted. The aim of this research is to provide better adsorption capacity and activated carbon material quality using ultrasonic waves. Parameters tested to assess adsorption ability include adsorption capacity and absorption efficiency with respect to adsorption capacity. The analysis of the Cu(II) metal ion concentration was conducted using Atomic Absorption Spectrophotometry (AAS). The constant variables used include the adsorbent mass (1 gram), feed solution volume (100 ml), and stirring speed (75 rpm). The variable that changed in this study was the contact time. The concentration of Cu(II) solution used was 1127.74 mg/L with stirring times of 0, 10, 20, 50, 80, 100, and 120 minutes. The research parameters examined include absorption efficiency at each contact time, and the results are as follows: absorption efficiency at 0, 10, 20, 50, 80, 100, and 120 minutes, respectively, were 0%; 33.57%; 40.06%; 38.94%; 50.28%; 53.49%; and 54.45%.

Keywords


Adsorption; merkusii cone pine; ultrasonik

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