Natural Zeolites for the Sorption of Ammonium: Breakthrough Curve Evaluation and Modeling.

ABSTRACT: The excessive use of ammonium fertilizer and its associated leakage threatens aquatic environments around the world. With a focus on the treatment of drinking water, the scope of this study was to evaluate and model the breakthrough curves for NH₄⁺ in zeolite-filled, fixed-bed columns. Breakthrough experiments were performed in single- and multi-sorbate systems with the initial K⁺ and NH₄⁺ concentrations set to 0.7 mmol/L. Breakthrough curves were successfully modeled by applying the linear driving force (LDF) and Thomas models. Batch experiments revealed that a good description of NH₄⁺ sorption was provided by the Freundlich sorption model (R² = 0.99), while unfavorable sorption was determined for K

SUBMITTER: Eberle S 

PROVIDER: S-EPMC9965154 | biostudies-literature | 2023 Feb

REPOSITORIES: biostudies-literature