COPPER BIOSORPTION USING BEADS BIOSORBENT OF MIXED CULTURE MICROALGAE
Tiara Wilan, Rositayanti Hadisoebroto*, Astri Rinanti

Environmental Engineering Department, Faculty of Landscape Architecture
and Environmental Technology, Universitas Trisakti, Jakarta, Indonesia

Abstract

Sorption process of copper metal (Cu2+) from artificial electroplating wastes using a biotechnology approach was studied using beads biosorbent of mixed culture microalgae. The research of beads biosorbent consists of microalgae Chlorella vulgaris, Chlorococcum sp., and Scenedesmus obliquus conducted in batch culture to determine the highest efficiency of Cu2+ sorption to reduce Cu2+ pollution to the environment. Biosorbent was made into beads by mixing 0,5 gr (dead biomass)/gr (Na-alginate polymer). The beads biosorbent were contacted with Cu2+ in the pH range 4-6 and contact time 0-180 minutes. The highest sorption efficiency of Cu2+ was 85% obtained at pH 4, 120 minutes contact time, in temperature of 25 ºC, and with an initial waste concentration of 25 mg/L. The sorption process of this research follows Langmuir Isotherm with R2 value of 0,997. It was proven that beads biosorbent of mixed culture microalgae can be used as an environmental-friendly solution to control Cu2+ pollution in the environment.

Keywords: Biosorption, Copper metal, Chlorococcum sp., Microalgae Beads, Electroplating Wastewater

Topic: Environmental Engineering

Link: https://ifory.id/abstract-plain/BJfhQHCRjwb2

Web Format | Corresponding Author (Rositayanti Hadisoebroto)