摘要：The effective utilization of bean-curd refuse (okara) as an oil absorbent was investigated. Dried okara has hydrophilic and lipophilic properties and excellent oil-absorbing activity. While the oil-absorbing activity of okara is slightly inferior to that of commercially available agents, its price is less than one hundredth that of such preparations, which is around five thousand yen per kg. Its various applications include use as an absorbent of oil accidentally spilt on roads, fields, rivers or ponds, as an absorbent of waste oil, or as a cleaning agent for oil-stained machines or vessels. The use of okara offers many merits, such as light handling, easy after-treatment, constant supply, and effective utilization of food processing waste.
关键词：oil absorbent;cleaning agent;bean-curd refuse;dried okara;hydrophilic and lipophilic properties;waste oil
