Phosphorus and Nitrogen Removal Using Novel Porous Bricks Incorporated with Wastes and Minerals
Dungang Gu, Xianzheng Zhu, Toulavanh Vongsay, Minsheng Huang, Li Song, Yan He
More details
Hide details
Shanghai Key Laboratory of Urbanization and Ecological Restoration,
School of Resources and Environmental Sciences, East China Normal University, Shanghai, China
Pol. J. Environ. Stud. 2013;22(5):1349-1356
In this study, wastes and minerals were incorporated into the production of bricks as a kind of water- purifying substrate. The brick contained 72% clay, 10% bagasse, 10% steel slag, 5% zeolite, and 3% calcite by weight. The brick exhibited highly and hierarchically porous structure. It can remove phosphate and ammo- nium simultaneously from aqueous solutions with the maximum adsorption amount of 3.8 mg/g for phosphate and 0.7 mg/g for ammonium. Kinetic analysis showed that the brick had a faster removal rate for phosphate than ammonium. The maximum desorbability of phosphate and ammonium were found to be 5.9% and 13.9%, respectively. Considering wastes recycling, easy fabrication, and favorable properties, this type of brick has the potential to be applied to in-situ remediation of aquatic environment.
Journals System - logo
Scroll to top