硫酸亚铁与硫酸铝比较具有价格低,生成的矾花比重大、沉淀迅速、受温度变化影响小、所适用的pH值范围大等优点,但由于对设备管道易产生腐蚀,并且增加了水中的含铁,因此限制了它在电厂中的使用。我厂使用的反应、沉淀设备是水泥结构的涡流反应池与斜管沉淀池,自1980年改用硫酸亚铁代替Al:(50’):作为混凝剂 Ferrous sulphate and aluminum sulphate have the advantages of low price, large flocculation ratio, rapid precipitation, small influence of temperature change, and applicable pH value range, but due to the easy corrosion of equipment pipelines and the increase of water The iron content limits its use in power plants. The reaction and precipitation equipments used in our plant are vortex and inclined tube sedimentation tanks of cement structure. Since 1980, ferrous sulfate has been used instead of Al: (50’): as a coagulant