Inorganic - Organic Composite Flocculant Pac/pfc - Pam Studies Of Phosphorus Removal Of Nanfeihe River Water Body

In recent years, Nanfei River is subjected to the serious pollution, especially water eutrophication on account of excessive phosphorus that is existed in sewage water, so we must make a deep phosphorus removal and we had better deal with this situation in the primary location. As to the research of the removing phosphorus in sewage water, we decide to adopt the method of chemical coagulative precipitation.By the screening of PAC, PFC, AS, FS, CaCl2, Ca (OH)2, considering the removal efficiency of TP, costs and characteristic of all kinds of water treatment chemical, and increasing the water burden with the addition of water treatment chemical, we decide to use efficient and economic water treatment chemical that is consist of PAC, PFC and PAM.The research is inclined to performance and application of water treatment chemical. Due to the changing of the concentration of TP with seasonal change, setting different concentration of TP is necessary. The best condition of phosphorus removal can be established by the orthogogal experiment and the research of varieties of influencing factor. The next part mainly makes a investigation about the removal efficiency of phosphorus and the side effect that is brought by water treatment chemical.The last part of experiment is concentrared on the research of absorption and performance of keeping phosphorus of floccules and make a simple analysis about the mechanism of phosphorus removal of water treatment chemical water treatment chemical.Water treatment chemical that has screened by making experiments can remove multiple phosphorus that is existed in sewage water effectively and has an advantage of low-price, availability and little damage to environment. So, to some extent, it has the practicality and generalization performance and can supply some reference for the removal phosphorus chemicals. On the other hand, the research of influencing factor and absorption and performance of keeping phosphorus of floccules also offer some data foundation in order to make the removal phosphorus chemicals play a great part in removal phosphorus. In short, all this will lay the foundation of employing chemical teconology to remove phosphorus from Nanfei River effectively.