摘要
用前期研究中获得的2,6二叔丁基酚(简2,6DTBP)降解菌(Aeromonassp.),进行了对2,6二叔丁基酚的降解性能等研究。结果表明菌株经固定化包埋后,降解底物2,6DTBP的能力大大提高。在100.0mg/L的初始浓度下其降解率在12d可达到81%。通过对固定化菌株的降解反应过程的动力学分析,其对底物的降解反应符合一级动力学特征,当2,6DTBP初始浓度为100mg/L时,固定化菌种其动力学常数为0.1232,半衰期为5.63day。扫描电镜观察到菌种在海藻酸钙包埋载体中能良好地生长和繁殖。
Using a specific degrading microorganism Alcaligenes sp. immobilized in calcium alginate, the capability of degradation of 2,6-Di-tert-butylphenol (2,6 DTBP) has greatly improved. The biodegradation of 2,6 DTBP in different concentrations was studied, showing a removal of 81% with initial concentration 100mg/L, period of 12 days. The experiment indicates that the degradation follows 1st order kinetics, half life of 2,6 DTBP being 5.63 days. SEM images have been used to observe growth of the microorganism.
出处
《环境科学与技术》
CAS
CSCD
北大核心
2005年第3期1-2,8,共3页
Environmental Science & Technology
基金
国家自然科学基金资助项目(50008011)
关键词
固定化
动力学
2
6-二叔丁基酚
海藻酸钙
immobilization
dominant bacteria
kinetics
2,6-Di-tert-butylphenol (2,6 DTBP)
calcium alginate
