电芬顿—磁固定化菌株耦合体系治理苯酚废水  

Treatment of Phenol Wastewater by Electro-Fenton/Magnetic Immobilized Strain Coupling System

作　　者：郭美薇 赵艺璘 陈星 时胜男 GUO Meiwei;ZHAO Yilin;CHEN Xing;SHI Shengnan(School of Life Science,Liaoning Normal University,Dalian 116081,China)

机构地区：[1]辽宁师范大学生命科学学院

出　　处：《水处理技术》2019年第11期46-49,共4页Technology of Water Treatment

基　　金：国家自然科学基金（51508259）;教师指导本科生科研训练项目（CX201802050)

摘　　要：为提高苯酚废水的处理效率,研究将磁固定化高效苯酚降解菌株Cupriavidus sp. JS与电芬顿体系相结合,构建电芬顿-磁固定化细胞耦合体系。结果表明,在pH为3.5和电压为1.0 V的适宜条件下,耦合体系的苯酚羟化酶(PHO)、邻苯二酚2,3-双加氧酶(C23O)、ATP酶和脱氢酶(DHA)酶比活性均最高,且耦合体系的苯酚降解率(100.0%)显著高于单独的磁固定化细胞(87.40%)与单独电芬顿体系(8.65%)之和,表明电芬顿体系与生物降解间存在耦合协同作用。该耦合体系中苯酚降解率以及PHO、C23O、ATP酶和DHA活性均随着重复利用次数的增加而逐渐提高。In order to improve the phenol wastewater treatment efficiency, the integration of magnetic immobilized cells of strain Cupriavidus sp. JS and an E-Fenton system was studied to build E-Fenton/magnetic immobilized cell coupling system. The results showed that, the degradation rate of phenol by the integration system was 100%, which was significantly exceeded the sum of the single magnetically immobilized cells(87.40%) and E-Fenton process(8.65%), and the specific activities of PHO, C23 O, ATPase and DHA in the integration system were the highest at the optimal pH and voltage of 3.5 and1.0 V, respectively. These findings demonstrated that a synergistic effect existed between the biological treatment and the E-Fenton process. The degradation rates of phenol and PHO, C23 O, ATPase and DHA activity of the integration system were increased gradually with the increasing of reuse times.

关 键 词：苯酚 降解 电芬顿 磁固定化细胞 耦合体系 

分 类 号：O646[理学—物理化学] X703.1[理学—化学]