Durian husk wastes as low-cost adsorbent for physical pollutants removal: groundwater supply

Durian peel can be the main contributor to agricultural wastes and becomes an environmental problem when it is discarded into landfill site or even burning it. The average of entire durian fruit weight about 255,353 MT for all over country. loading rate landfills increasing, especially with massive amount size waste that requires a larger space dispose of. Therefore, certainly important utilize husk as adsorbent improve water quality, groundwater source. Groundwater commonly has higher hardness level than surface water. in major concern, every cleaning task. This research aimed investigate potential reducing hardness, electrical conductivity (EC), total dissolved solids (TDS). was treated NaOH solution adsorption efficiency. Laboratory analyses such ethylenediaminetetraacetic acid (EDTA) titration method were performed solids, concentrations respectively test performance removal efficiency before after treatments. As results, by significantly dropped dosage settling time. However, not TDS EC removal, which went sudden increased dosage. novelty this study first-ever experiment using real on-site samples field initial concentrations, different from other previous studies lab-scale synthetic hard most them highest concentration up 700 mg/L CaCO3 find out softening treatment husk, compare too low within 300 below.