Removal of ammonium and phosphates from aqueous solutions by biochar produced from agricultural waste

Abstract

The concern about protecting water quantity and quality is one of the most severe challenges of the twenty-first century since the demand for water resources grows as the population and its needs grow. Additionally, and as expected, most human activities produce wastewater containing undesirable contaminants. On the other hand, the generation of agricultural waste and its inappropriate disposal causes further problems. Current wastewater treatment methods involve a combination of physical and chemical processes, technologies, and operations to remove pollutants from effluents; adsorption is an excellent example of an effective method for wastewater treatment, and biochar is currently one of the most valuable adsorbents. This review focuses on new research about applying biochar produced from agricultural waste as a low-cost and environmentally friendly method for removing ammonium and phosphates from aqueous solutions.

Corncob Biochar Activation by Phosphoric Acid and Hydrogen Peroxide for Enhancing Ammonium Adsorption

“…As a result, dissolved oxygen levels drop, causing toxicity for fish, as well as destruction of aquatic ecosystems. (Yin et al, 2017 andPantoja et al, 2023). The major nitrogenous substances encountered in wastewater are ammonia (NH3) and ammonium (NH4 + ) ions.…”