不同糖源对细菌降解偶氮染料活性黑5效果的影响研究  

Effect of Different Sugar Sources on the Degradation of Azo Dye Reactive Black 5 by Bacteria

作　　者：周珊珊 刘娜 秦祎婷 姜进文 姚佳 Zhou Shanshan;Liu Na;Qin Yiting;Jiang Jinwen;Yiao Jia(School of Environment and Surveying Engineering,Suzhou University,Suzhou 234000,China)

机构地区：[1]宿州学院环境与测绘工程学院,安徽宿州234000

出　　处：《广东化工》2020年第4期42-44,共3页Guangdong Chemical Industry

基　　金：安徽省级大学生创新创业训练计划项目(201810379141);安徽省自然科学基金资助项目(1808085QE176);安徽省教育厅科学研究项目资助(KJ2018A0444);宿州学院教授(博士)科研启动基金项目(2016jb04)。

摘　　要：本研究以偶氮染料活性黑5作为研究对象,利用细菌对偶氮染料进行降解脱色。通过将外加糖源以单一或与其他营养物复合的方式,添加到反应系统中,从而增强细菌对偶氮染料活性黑5的脱色效果。实验结果表明:不同的单一糖源对活性黑5的降解脱色效果都较差,其中蔗糖效果最好,脱色率为16.71%。当以其他营养物与单一糖源复合时,细菌的脱色效果有了显著提高,且当木糖与酵母提取物复合时,反应72 h后,细菌对活性黑5的脱色率达到98.05%。在此条件下,细菌对不同浓度(300~1500 mg/L)的活性黑5在脱色72 h后均可以达到95%以上的脱色率。本研究为利用不同糖源强化细菌处理实际印染废水提供理论依据。In this study, azo dye Reactive Black 5 was used as the research object to be decolorized by bacteria. In order to enhance the decolorization effect, exotic sugar source was added to the reaction system in a single way or combined with other nutrients. The results showed that different single sugar sources had poor decolorization effect on the degradation of Reactive Black 5, among which sucrose was the best one with the decolorization rate of 16.71%. When other nutrients were combined with a single sugar source, the decolorization effect of bacteria was significantly improved, and when xylose was combined with yeast extract, the decolorization rate of bacteria reached 98.05% after 72 hours of reaction. Under this condition, the decolorization rate of Reactive Black 5 with different concentration(300-1500 mg/L) could reach over 95% after 72 hours. This study provides a theoretical basis for the treatment of printing and dyeing wastewater by using different sugar sources to strengthen bacteria.

关 键 词：细菌 糖源 活性黑5 降解脱色 

分 类 号：X172[环境科学与工程—环境科学]