Recent advances on humic acid removal from wastewater using adsorption process

Humic acid (HA) is a component of natural organic matter (NOM) with high molecular weight and complexity. The presence humic in water raises serious concerns due to its toxicity ability form carcinogenic trihalomethanes. Adsorption was shown be an effective method for the removal from various wastewater sources. Many adsorbents were feasible removing HA wastewater, including carbon-based activated carbons, clay-based adsorbents, zeolites, iron-based/magnetic functionalized adsorbents. using different types presented reviewed effect changing operational parameters such as pH, adsorbent dosage, contact time, initial concentration, temperature, ionic strength on adsorption performance evaluated. According review, nano-MgO performed best capacity, while MAER-3 resin most regeneration cycles. Nano-MgO promising capacity capabilities, 1260 mg/g ten Future research should focus continuous processes order scale-up use industrial level, well actual rather than synthesized experiments, cost analysis determine feasibility scaling up level.