D. Kurniawati, Bahrizal, T.K. Sari, F. Adella
Dye waste comes from textile, paint, batik and food industries wastes that produces colored liquid waste which is harmful to the environment. For this reason, the research is carried out to find solutions to these problems. This study aims to determine the effect of flow rate on dye absorption using the column method. Adsorption was carried out by langsat shell activated with nitric acid. The flow rate variations used were 1 mL/minute, 2 mL/minute, 3 mL/minute and 4 mL/minute. The results obtained were that the rhodamine B dye absorbed 1.7901 mg/g, the methyl orange dye occurred 6,0827 mg/g, and the methylene blue dye 12,524 mg/g. © Published under licence by IOP Publishing Ltd.
Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Negeri Padang, Jl. Prof. Hamka, Air Tawar, West Sumatera, Padang, Indonesia
