Its flocculation effect is obviously superior to PAC. Using PSAF instead of PAC can improve flocculation effect. 5) The active ingredient of PAC is a measure of aluminum oxide. The higher the degree of alkalinity is, the better the PAC adsorption bridging ability is. However, due to its close proximity to [Al (OH) 3] n, precipitation tends to occur, resulting in poor stability and increased The efficiency of the process is, more than, and most importantly, less residual aluminum than PAC. 3) It can be seen from Table 2 that temperature has little effect on PSAF. 4) PSAF is a new type of high efficient flocculant. The removal rate of turbidity and color can all reach certain good effect. COD can shorten the residence time of sewage in the process and raise the sewage in the range of water temperature 20-45 ℃ System processing power. 2) The effect of PSAF on algae removal is obviously better than that of PAC, which can reduce the burden of water treatment process and the precipitation time is short. 1) PSAF is better than PAC in treating sewage,