The potential of using banana and cassava peel as sorbent in treating batik wastewater

Abstract

Batik industries greatly affect the country’s economy due to the increase in domestic and overseas markets. However, the effluent generated a negative effect on the environment and human health. It produces wastewater that lead to water pollution because it uses a lot of chemicals. Various methods have been conducted to reduce the production of colored wastewater such as ion exchange, coagulation, flocculation, biological treatment and adsorption. Adsorbent is a study where the waste of natural ingredients used as adsorbents to replace man-made sorbents. For this study, it investigated the potential of using banana peel (BP) and cassava peel (CP) as sorbent in treating batik wastewater. The impact on the final dye concentration was investigated based on the pH, adsorbent dosage and contact time. For the natural banana peel (BP) showed almost 100% dye concentration was reduced. Besides that, the highest reading for cassava peel (CP) was 93% and the MIX reading was 97%. For studies using modified adsorbent, it shows the highest concentration of cassava peel (CP) adsorbs which is 45% and the lowest concentration was banana peel (BP), 27%. Natural banana peel (BP) has produced the highest efficiency for color removal of 99% at pH1, 0.6g for 3 hours. Langmuir and Freundlich isotherm models were tested on adsorption data and adsorption process are best described by the Langmuir isotherm. The maximum adsorption rate was 8.253 mg/g. For this study, we can conclude that the natural adsorbent can be highlighted as an alternative to reduce the colored wastewater from the industry.