Rinanti, Astri and Ferianita Fachruli, Melati and Hadisoebroto, Rositayanti and Silalahi, Mawar and Iswanto, Bambang and Putrikusumaningayu, Putrikusumaningayu (2016) Biosorption of Cu (II) by scenedesmus obliquus : kinetics adsorption study and optimization in PH - contact time. In: The 4th International Conference on Sustainable Built and Environment Sustainable Building and Environment for Sophisticated Life, 12-14 Oktober 2016, Yogyakarta.

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Abstract

In this study, biosorption of copper (Cu2+) in heavy metal in electroplating wastewater by biosorbent using Scenedesmusobliquus green algae has been investigated lively in the artificial medium of Phovasoli Haemotococcus Medium (PHM). The study uses a batch test with various pH: 4, 5, 6, 7 and 8 as well as the various contact:60, 120, 180, 240 and 300 minutes. Some ratios of wastes versus nutrients (waste: nutrition) in the treatment were A (1: 3), B (1: 1), C (3: 1) and D (100% of waste) with the initial concentration respectively, A (5.05 mg / l), B (16.54 mg / l), C (21.85 mg / l) and D (30.28 mg / l) at temperature condition of (28°C ± 2). The results of the study show that the biosorption rate and the abilities of the biosorbent are influenced by pH and contact time (absorption rate). The maximum uptake rate for Cu2+ was obtained at pH 6 and the contact time of 240 minutes. In the ratio of waste:nutrition = 1: 3, the uptake rate was 65.54% ± 8.04 and for the treatment consisting 100% waste, the uptake rate was 41.99% ± 1.01. The morphology of c S.obliquus cell was studied using Scanning Electron Microscopy (SEM). The results showed that the absorption of copper (Cu2+) is due to destruction of the cell wall. Analysis of Fourier Transform Infrared (FTIR) shows the absorption band of functional groups such as carboxyl, amine and alkene. It indicates the interaction between S.obliquus and the copper ion (Cu2+). The adsorption process of this study follows the Freundlich isotherm equation as well as the Langmuir model, The adsorption fitted the first order kinetics with the R2 value of 0.2486 for the solution containing 1:3 (waste:nutrient) and 0.336 for the solution containing 100% waste. Keywords: Biosorption; Copper (Cu2+); Isotherms Adsorption; Kinetics Adsorption, S.obliquus,

Item Type: Conference or Workshop Item (Paper)
Subjects: T Technology > TD Environmental technology. Sanitary engineering
Divisions: Faculty of Landscape Architecture and Environment Technology > Department of Environmental Engineering
Depositing User: FALTL Univ Trisakti
Date Deposited: 22 Nov 2017 08:26
Last Modified: 22 Nov 2017 08:29
URI: http://libprint.trisakti.ac.id/id/eprint/374

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