摘要
为实现污泥的增值利用,采用加热酸水解法,以青岛市李村河污水处理厂剩余活性污泥为材料,从中提取细胞蛋白,对干燥的蛋白质沉淀物进行营养性和安全性分析。结果表明:该沉淀物蛋白质纯度较高,可检测到7种必需氨基酸(色氨酸测定时被破坏)和8种非必需氨基酸,且含量很高;沉淀物中重金属含量非常少,符合GB13078-2001和NY929-2005标准中的相关规定。从营养性和安全性两方面考虑,该污水处理厂剩余污泥蛋白质提取分离后作为动物饲料添加剂可行。
In order to realize utilization of sludge,the sludge of Lieun river wastewater treatment plant in Qingdao was used to extract protein by aeid-hydrolyzing extraction.The nutrition and security of the precipitates were evaluated.The purity of protein in the precipitates is higher, Seven kinds of essential amino acids and eight non-essential amino acids with higher content can be detected.Contents of heavy metals in the precipitates are lower and are up to the Hygienieal Standard for Feeds,etc.Consideiing the nutrition and security,it is feasible for the protein precipitates extracted from the sludge of Lieun river wastewater treatment plant in Qingdao used as animal feed additive.
出处
《中国饲料》
北大核心
2008年第15期35-38,共4页
China Feed
基金
中国海洋大学引进人才科研启动经费项目资助(HD19990016)
