Laboratory Study of the Removal Efficiencies for Ammonium and Total Phosphorus from Runoff Using Layered Filtration Systems

Abstract:

The removal efficiencies for ammonium (NH₄⁺) and total phosphorus (TP) from runoff using two layered filtration systems (LFS-A, with a turf surface, and LFS-B, with a permeable brick surface) were investigated in six repeated experiments. The results indicated that the removal efficiencies for NH₄⁺ and TP from infiltrated water using LFS-A were as high as 90.92 and 91.60%, respectively, while the efficiencies resulting from LFS-B ranged from 86.67 to nearly 100% and 90.29 to 99.09%, respectively. However, there was a significant difference in the comprehensive removal rates (CRRs) for NH₄⁺ and TP between LFS-A (400 and 70 mg·m^-2·h^-1, respectively) and LFS-B (174 and 54 mg·m^-2·h^-1, respectively). Some engineering measures, such as the utilization of replanted turf, may reduce the CRRs for pollutants for long periods of time; while no significant relationships between the CRRs of NH₄⁺ and TP and their initial concentrations were observed.

• Periodical: Advanced Materials Research (Volumes 726-731)
• Pages: 2198-2205
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.726-731.2198
• Online since: August 2013
• Authors: Dong Zhou*, Chun Juan Bi, Zhen Lou Chen, Huan Guang Deng
• Keywords: Ammonium, Medical Stone, Removal Efficiency, Total Phosphorus, Zeolite

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