Adsorption characteristics of used brick for phosphorus removal from phosphate solution

Phosphorus is one of the main causes for eutrophication in waterbodies. The techniques for phosphorus removal from wastewater and waterbodies have become a hot topic in the world. In this study, used brick was chosen as an experimental adsorbent for removing phosphorus from phosphate solution, and the effects of brick dosage, pH, temperature and vibration time on phosphorus adsorption characteristics were evaluated. Results showed that phosphorus could be effectively removed using brick powders, and the optimum brick dosages were 4, 9 and 35g/L in the presence of 5, 10 and 50mg/L of phosphorus concentrations, respectively. A significant linear correlation (R-2=0.9904) between phosphorus concentration and optimum brick dosage was observed. The optimum condition was determined to be: brick dosage 20g/L, phosphorus concentration 25mg/L, pH 5, temperature 25 degrees C and vibration time 2h.Phosphorus is one of the main causes for eutrophication in waterbodies. The techniques for phosphorus removal from wastewater and waterbodies have become a hot topic in the world. In this study, used brick was chosen as an experimental adsorbent for removing phosphorus from phosphate solution, and the effects of brick dosage, pH, temperature and vibration time on phosphorus adsorption characteristics were evaluated. Results showed that phosphorus could be effectively removed using brick powders, and the optimum brick dosages were 4, 9 and 35g/L in the presence of 5, 10 and 50mg/L of phosphorus concentrations, respectively. A significant linear correlation (R-2=0.9904) between phosphorus concentration and optimum brick dosage was observed. The optimum condition was determined to be: brick dosage 20g/L, phosphorus concentration 25mg/L, pH 5, temperature 25 degrees C and vibration time 2h