Mariana, F. Mulana, D.N. Pratama, S. Muchtar
Ammonia and methylene blue are hazardous industrial wastes which are dangerous to health and the environment. Adsorption is one of several separation processes that can be employed to reduce these contaminants in water. Activated carbon is the most commonly used adsorbent for this process due to its high adsorption effectivity. However, adsorbents with one type of activated carbon generally have lower adsorption efficiency hence modification such as treatment and combination was proposed. This study aims to explore the potential of the combination of silica and coconut husk activated carbon for the removal of ammonia and methylene blue in industrial liquid waste. Several types of adsorbent were used in this research namely pure silica (activated and nonactivated), coconut husk (activated and nonactivated) and the combined pure silica-coconut husk (with combination ratio of 70:30). The results showed that the coconut husk-pure silica combined adsorbent showed the best adsorption performance in terms of removal efficiency and adsorption capacity for both methylene blue and ammonia. The removal efficiency of ammonia and methylene blue was 99.49% and 83 %, respectively. Whereas, the adsorption capacities of this combined adsorbent were 0.017 mg/g and 1.3913 mg/g for methylene blue and ammonia, respectively. © RASĀYAN. All rights reserved.
Department of Chemical Engineering, Syiah Kuala University, Banda Aceh, 23111, Indonesia; Research Center for Environmental and Natural Resources, Universitas Syiah Kuala, Banda Aceh, 23111, Indonesia; Graduate School of Chemical Engineering, Syiah Kuala University, Banda Aceh, 23111, Indonesia
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