Method for improving treatment efficiency of oxidized starch wastewater

摘要

The present invention is to enhance the treatment of wastewater by pretreatment prior to basic treatment with microorganisms for efficient treatment of oxidized starch wastewater.;As the pretreatment method, heating, aeration, addition of a divalent cation compound, or a combination of these methods is used, and Ca (OH)₂The pH was adjusted to 10.5 with Fecl₂Is added at a concentration of 250 ppm and left for 5 hours. At this time, the treatment efficiency of 94% can be obtained compared with the treatment time.