BIOSORPTION OF CU(II) IONS FROM INDUSTRIAL EFFLUENTS BY RICE HUSK: EXPERIMENT, STATISTICAL, AND ANN MODELING

Abstract

Heavy metal removal from wastewater is a significant research area and recommends sustainable developmenThe heavy metals cause harmful health effects, increase environmental toxicity. Adsorption is a very effective method foheavy metal removal. A fixed bed for Cu(II) removal using rice hush, an agricultural waste, is reported in this paper. Thstudy was carried out to determine the breakthrough curves with varying operating variables like influent concentratio(10–30 mg/L), flow rate (10–40 ml/min), and bed height (4–10 cm) at pH 6. The variation of the process variables likinfluent concentration, flow rate, and bed height were investigated. The experimental data shows that adsorption capacitincreases with the rise of influent concentration. The maximum value of adsorption capacity is 10.93 mg/g at a flow ratof 10 ml/min, bed height 4 cm, and influent concentration 30 mg/L. The applicability of the MLR and ANN modeling haalso been successfully carried out. ANN has better predictability than MLR. The findings revealed that rice husk could bused to treat copper-containing industrial effluents.