Research on Pelleting Methods of Natural Apatite for Waste Water Treatment
Abstract：In this paper,the pelleting methods of natural apatite and the influencing factors are investigated.Experiments show that the hardness of palletized particles under a constant sintering temperature is positively proportional to the content of binding admixture(the clay minerals)；the hardness of palletized particles with the same content of binding admixture is positively proportional to the sintering temperature，whereas the specific surface area of palletized particles is negatively proportional to the sintering temperature.The specific surface area of palletized particles increases slightly as the sintering temperature increases under 700℃，then decrease slowly when the sintering temperature between 700～800℃,and decrease sharply when the sintering temperature above 800℃ and nearly to zero as the sintering temperature above 1250℃.It is proved that the pelletization of natural apatite does not affect its adsorbing ability very much to Pb2+ ion in waste water.
Keywords：natural apatitewaste water treatmentpelletization
Publication Date：2000-01-01
Online Publishing Date：2026-05-22(First online date of this platform, not the publication date of the document)
Pages：4( 244-246 )