Method for fixedly preparing PFS (polymeric ferric sulfate) by virtue of microorganism immobilization

摘要: The invention discloses a method for preparing PFS (polymeric ferric sulfate) by virtue of microorganism immobilization. is characterized comprising the following steps immobilizing microorganisms on reticulated polyurethane to form biological film; reaction material liquid with full iron content taking industrial ferrous sulfate as raw and inorganic salt nutrient; introducing into liquid, bioreactor circular flowing, performing aeration at room temperature prepare stock solution ; mixing same that obtain according certain proportion, in which film formed, operation condition, collecting [F ] solutions remaining every cycle dissolving tank reaction, obtaining finished product when smaller than or equal 0.3kg/m . can be used coagulation treatment various kinds water, has advantages simplicity, high operational flexibility, low cost, no pollution like.