Temperature effects on the sorption of phosphate

The adsorption of phosphorus on two samples of sediments taken from LiaoHe river at 283K and 308K were studied. The results indicated that the phosphorus adsorption was endothermic reaction, as the phosphate adsorption rate increased along with the increase of temperature. S0 of the sediments from the Mahushan and Xing’an were 9.64 and 10.24, H0 were 7.56 and 7.90. The effect of phosphate adsorption by temperature was lower for the sediment from the Mahushan. In addition, temperature and K that mean the binding energies of the phosphate adsorption are related. The higher the temperature is, the greater the intensity of the phosphate adsorption would be, the more secure the phosphate adsorption would be.