拟康宁木霉对含铬黑T废水的处理特性研究  

Study on the treatment characteristics of chrome black T wastewater by Trichoderma koningiopsis

作　　者：林锦美[1,2] 郑鹏 丁能能 巫晶晶 陈锦芳[1] LIN Jinmei;ZHENG Peng;DING Nengneng;WU Jingjing;CHEN Jinfang(College of Harbour and Coastal Engineering,Jimei University,Xiamen Fujian 361021;Key Laboratory of Food Microbiology and Enzyme Engineering of Fujian Province,Xiamen Fujian 361021;OriginWater Environmental Technology Co.,Ltd.of Jiangsu Province,Wuxi Jiangsu 214194)

机构地区：[1]集美大学港口与海岸工程学院,福建厦门361021 [2]福建省食品微生物与酶工程重点实验室,福建厦门361021 [3]江苏碧水源环境科技有限责任公司,江苏无锡214194

出　　处：《环境污染与防治》2024年第4期478-483,489,共7页Environmental Pollution & Control

基　　金：厦门市科技补助项目(No.2022CXY0308);福建省教育厅项目(No.JAT210235、No.JAT200258);福建省本科教育改革项目(No.FBJG20210088)。

摘　　要：利用拟康宁木霉(Trichoderma koningiopsis)对铬黑T模拟废水进行脱色降解。以铬黑T去除率为指标,探究反应时间、初始铬黑T浓度、投菌量、葡萄糖用量、温度以及转速等对拟康宁木霉处理铬黑T效果的影响。通过正交实验探究拟康宁木霉处理铬黑T的最佳条件,并对其处理特性进行研究。结果表明:拟康宁木霉处理铬黑T模拟废水的最适条件包括初始铬黑T质量浓度20 mg/L,投菌量7.5 g/L,转速140 r/min,以0.4 g/L葡萄糖作为外加碳源,在30℃下反应20 h,铬黑T去除率达96.8%,且该菌对混合染料废水的去除率在90%左右。拟康宁木霉对铬黑T的吸附属于均质单层吸附,且符合一级动力学模型。拟康宁木霉对铬黑T的处理是通过生物吸附与降解的协同作用而实现。Decolorization and degradation of chrome black T simulated wastewater by Trichoderma koningiopsis were studied.The effects of reaction time,initial chrome black T concentration,bacteria dosage,glucose dosage,temperature and rotational speed on the degradation of chrome black T by Trichoderma koningiopsis were investigated with the removal efficiency of chrome black T as the index.The optimum conditions for the treatment of chrome black T by Trichoderma koningiopsis were determined by orthogonal experiments,and the treatment characteristics were studied.The results showed that the optimal conditions for the degradation of chrome black T simulated wastewater by Trichoderma koningiopsis were as follows:20 mg/L of initial chrome black T concentration,7.5 g/L of bacteria dosage,and 140 r/min of rotational speed,0.4 g/L of glucose as an additive carbon source,at 30℃for 20 h.The removal efficiency of chrome black T could reach 96.8%under the optimum conditions,and the removal efficiency of mixed dye wastewater by Trichoderma koningiopsis could reach about 90%.Adsorption of chrome black T by Trichoderma koningiopsis belonged to homogeneous monolayer adsorption and belonged to first-order kinetics.The results showed that the treatment of chrome black T by Trichoderma koningiopsis was achieved through the synergistic effect of biological adsorption and degradation.

关 键 词：拟康宁木霉 铬黑T 生物降解 生物吸附 一级动力学 

分 类 号：X703[环境科学与工程—环境工程]