Innovative Recovery of Winemaking Waste for Effective Lead Removal from Wastewater

Every year, important quantities of winemaking waste create problems for wine producers. These arise from the difficulty disposing grape marc, which can pollute environment and affect nearby agricultural crops. The present research proposes a new direction valorization this agri-food in residual water depollution. Four biomaterials obtained were tested Pb removal: raw Merlot marc (MR), Sauvignon Blanc (SbR), biorefined (ME) (SbE). effects biosorbent mass initial concentration, adsorption kinetic, equilibrium isotherms matrix influence mine effluent assessed. Very good perspectives practical application lead uptake wastewaters arise, with better results compared to material. removal percentage an solution containing 20 mg Pb/L, at optimum pH (5.5 ± 0.5) was 71%—MR, 78%—SbR, 80%—ME, 97%—SbE. A Langmuir model revealed very capacity ME (40 mg/g) SbE (64 mg/g). Thus, polluting waste, turn into low-cost easy-to-prepare sorbent bioremediation contaminated water.