功能菌生物强化处理地表水中红霉素药物的研究  

Bioaugmented Treatment of Erythromycin by Engineered Microorganism in Surface Water

作　　者：何梦琦[1] 高品[1] 薛罡[1] 李侃竹 石为民[1] 

机构地区：[1]东华大学环境科学与工程学院,上海201620

出　　处：《环境科学与技术》2014年第7期72-77,共6页Environmental Science & Technology

基　　金：国家自然科学基金资助项目(51178093;51208086);上海市浦江人才计划资助(13PJ1400100);高等学校博士学科点专项科研基金项目(20120075110012);中央高校基本科研业务费专项资金(13D111316)

摘　　要：从城市污水处理系统活性污泥中驯化筛选出红霉素高效降解菌,经鉴定为假单胞菌属,在温度为30℃,pH为7.0~7.5,红霉素初始投加浓度为30 mg/L时,该降解菌对红霉素的5日降解率可达76.6%。在曝气生物滤池（BAF）中,以生物陶粒和火山岩作为滤料,考察功能降解菌生物强化处理地表水中红霉素药物的去除效果。结果表明,红霉素降解菌的投加对BAF的挂膜启动时间影响不大。曝气量和水力停留时间对BAF去除红霉素均具有一定的影响,随着曝气量的增大,红霉素的去除率呈现先增大后下降的趋势;随着水力停留时间的降低,红霉素去除率逐渐降低。通过稳定运行效果分析可知,投加降解菌的生物陶粒BAF和火山岩滤料BAF对红霉素的去除率比未投加降解菌的BAF分别提高33.9%和40.1%,表明采用生物强化技术提高BAF对红霉素的生物去除效果是可行的。Erythromycin-degrading strains were isolated from activated sludge collected from a sewage treatment plant, which were identified as Pseudomonas putida. It was found that the removal rate as high as 76.6% of erythromycin within 5d could be achieved at temperature of 30 ℃, pH of 7.0-7.5, initial erythromycin concentration of 30 mg/L. Removal of erythromycin was investigated as isolated degrading-strains were inoculated into biological aeration filters （BAF）, using bioceramic media and volcanic rock as the filters. Results showed that the effect with erythromycin-degrading bacteria addition on start-up of BAF was negligible. However,＇ the erythromycin removal increased at the beginning and then decreased as the aeration intensity increased. The erythromycin removal decreased when the hydraulic residence time decreased. The performance during the stable operation indicated that the erythromycin removal efficiencies by bioaugmented bio-ceramic media and bioaugmented volcanic rock filters increased by 33.9% and 40.1% respectively, demonstrating that the improvement of erythromycin removal via bioaugmentation was feasible and effective.

关 键 词：曝气生物滤池 生物强化 功能菌 红霉素 

分 类 号：X703[环境科学与工程—环境工程]