| 摘要 |
PURPOSE:To efficiently carrying out an aerobic treatment of waste water, to miniaturize the treatment, to rationalize the treating system and to recover a seasoning component, etc., in the waste water, by ultrafiltering the waste water discharged from a boiling process of bean jam production and recovering the filtrate. CONSTITUTION:Waste water prepared in astringency removal process by adding water to raw material beans such as adzuki beans or kidney beans and boiling the beans once - several times or waste water produced in main boiling process by boiling the beans until the beans are softened and swollen is passed through a filter press, then through an ultrafilter UF preferably having <=40% amino acid stopping ratio and >=60% tannin stopping ratio, the filtrate is optionally permeated through reverse osmosis membrane RO, spray-dried SD and freeze dried to recover the aimed seasoning component. |
