Study of Methylene Blue Adsorption with Silver Chloride Coagulants from Photographic Film Waste

Gunawan Gunawan, Abdul Haris, Ela Uswatun, Sarahtrinita Glikeria Like M., Roni Adi Wijaya


Methylene blue is a dye that is widely used in industry. These dyes are hazardous and can pose a health risk if discharged directly into the environment. On the other hand, photographic waste containing Ag metal can be used as an AgCl coagulant. This study aims to determine the effectiveness of AgCl coagulant in the adsorption of methylene blue dye. Silver chloride was synthesized from photographic waste using the coagulation precipitation method. The results of the analysis showed that the AgCl coagulant was able to take 88.2% methylene blue dye at neutral pH 7 for 15 min with a stirring speed of 300 rpm for 10 mg/L methylene blue sample. The adsorption capacity of AgCl was 10.9 mg. g-1 and the adsorption kinetics model was pseudo-order 1 with an R2 value of 0.9318.

Keywords: AgCl, coagulant, methylene blue

DOI: 10.7176/JEES/12-4-06

Publication date: April 30th 2022

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ISSN (Paper)2224-3216 ISSN (Online)2225-0948

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