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| 从干剩余污泥中提取蛋白质的试验研究 | |
| 引用本文： | 陈伟华,李萍,陈广大,罗云,李登新,饶敏,魏尚曦.从干剩余污泥中提取蛋白质的试验研究[J].地球与环境,2011,39(3):435-439. |
| 作者姓名： | 陈伟华 李萍 陈广大 罗云 李登新 饶敏 魏尚曦 |
| 作者单位： | 1. 上饶师范学院化学与化工学院,江西上饶,334000 2. 宁德师范学院化学与环境科学系,福建宁德,352100 3. 东华大学环境科学与工程学院,上海,201620 |
| 基金项目： | 教育部第四批高等学校特色专业建设点资助项目(项目编号:TS11524); 上饶师范学院科研资助项目(项目编号:饶师院科字[2003]8号); 福建省教育厅A类科技项目(项目编号:JA08265),福建省教育厅B类科技项目(项目编号:JB10193) |
| 摘 要： | 以上海市松江区某污水处理厂的剩余污泥为原料,采用酸水解法提取干污泥中的蛋白质,考查了固液比、水解温度、水解时间、pH对蛋白质提取效果的影响。试验结果表明,水解的最佳条件为：水解液的pH为1.25;水解温度为118℃;固液比为1∶3.5;水解时间为5.5h。在此基础上,从安全性和营养性两方面考虑,对提取液中重金属和氨基酸... |
| 关 键 词： | 酸水解 剩余污泥 蛋白质 |
Experimental Research on Protein Extraction from Dried Excess Sludge |
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| CHEN Wei-hua,LI Ping,CHEN Guang-da,LUO Yun,LI Deng-xin,RAO Min,WEI Shang-xi.Experimental Research on Protein Extraction from Dried Excess Sludge[J].Earth and Environment,2011,39(3):435-439. | |
| Authors: | CHEN Wei-hua LI Ping CHEN Guang-da LUO Yun LI Deng-xin RAO Min WEI Shang-xi |
| Institution: | CHEN Wei-hua1,LI Ping2,CHEN Guang-da1,LUO Yun1,LI Deng-xin3,RAO Min1,WEI Shang-xi1(1.School of Chemistry and Chemical Engineering,Shangrao Normal University,Shangrao 334000,China,2.Department of Chemistry and Environmental Science,Ningde College,Ningde 352100,3.College of Environmental Science and Engineering,Donghua University,Shanghai 201620,China) |
| Abstract: | The excess sludge from the Shanghai Song Jiang sewage treatment plant was hydrolyzed by acid hydrolysis to extract protein.The results showed that the the conditions of optimal acid hydrolysis process for extraction of protein present in dried sludge are described as follows: pH 1.25,hydrolysis temperature 118 ℃,the ratio of solid to liquid 1∶3.5 and hydrolysis time 5.5 h.On this basis,the contents of heavy metals and some kinds of amino acid from the extracts by the optimal acid hydrolysis,while security and nutrition were taken into consideration,were determined.The result showed that the contents of heavy metals were lower,living up to the Health Standard for Animal Feed(China),and some kinds of amino acid were essential for animal growth in the extracts.So it was possible to take the extracts as animal feed additives. |
| Keywords: | acid hydrolysis excess sludge protein |
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