微生物燃料电池型人工湿地去除四环素机理研究
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摘要
四环素是一种重要的抗生素,广泛存在于自然水体中,对环境造成潜在危害。本文采用人工湿地(Constructed Wetland,CW)和微生物燃料电池型人工湿地(Microbial fuel cell-Constructed Wetland,MFC-CW)两种方式对四环素进行去除,试验结果显示:当MFC-CW运行稳定后,测定其电压为561±10 m V,并且持续保持稳定状态。最大功率密度为0. 0572 W/m~2,对应电流密度为0. 2675 m A/m~2,MFC-CW内阻为395. 3Ω。CW和MFC-CW对COD_(Cr)去除率为别为85. 1%和90. 41%,出水中四环素浓度为分别为0. 87～3. 92μg/L和0. 31～0. 91μg/L,MFC-CW较CW而言具有更高的污染物去除效能。
Tetracycline is an important antibiotic that is widely found in natural waters and poses a potential hazard to the environment. In this paper,Constructed Wetland( CW) and Microbial Fuel Cell-Constructed Wetland( MFC-CW) were used to remove tetracycline. The test results showed that when MFC-CW was in stable operation,its voltage is measured to be 561 ± 10 mV and remains stable. The maximum power density is 0. 0572 W/m~2,the corresponding current density is0. 2675 m A/m~2,and the internal resistance of MFC-CW is 395. 3 Ω. The removal rates of COD_(Cr) for CW and MFC-CW are 85. 1% and 90. 41%,and the concentrations of tetracycline in effluent are 0. 87-3. 92μg/L and 0. 31-0. 91μg/L,respectively. MFC-CW has a higher pollutant removal efficiency compared to CW.
Tetracycline is an important antibiotic that is widely found in natural waters and poses a potential hazard to the environment. In this paper,Constructed Wetland( CW) and Microbial Fuel Cell-Constructed Wetland( MFC-CW) were used to remove tetracycline. The test results showed that when MFC-CW was in stable operation,its voltage is measured to be 561 ± 10 mV and remains stable. The maximum power density is 0. 0572 W/m~2,the corresponding current density is0. 2675 m A/m~2,and the internal resistance of MFC-CW is 395. 3 Ω. The removal rates of COD_(Cr) for CW and MFC-CW are 85. 1% and 90. 41%,and the concentrations of tetracycline in effluent are 0. 87-3. 92μg/L and 0. 31-0. 91μg/L,respectively. MFC-CW has a higher pollutant removal efficiency compared to CW.
引文
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[22]李薛晓,程思超,方舟,等.湿地基质及阴极面积对人工湿地型微生物燃料电池去除偶氮染料同步产电的影响[J].环境科学,2017,38(5):1904-1910.
[23]王秀芳.高比表面积活性炭的制备、表征及应用[D].广州:华南理工大学,2006.
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[26]孙敏.微生物燃料电池的功能拓展和机理解析[D].合肥:中国科学技术大学,2009.
[2]白亭亭,杨群辉,李铭刚,等.植保抗生素阿扎霉素对白菜根肿病的防治效果[J].植物保护,2018,44(1):210-214.
[3]杨晓静,薛伟锋,陈溪,等.面向人体暴露评价的植物中抗生素分析进展[J].生态毒理学报,2018,13(1):1-15.
[4]蔡婷,卢倩文,向文良,等.四川泡菜发酵原料-灯笼辣椒附生乳酸菌的抗生素耐药性评估与耐药基因分析[J].食品科学,2017,38(2):27-33.
[5]方陆枫,蒋丽琴,吴佳林.抗生素的应用在食品安全卫生中产生的影响的调研[J].中外食品工业(下半月),2014(2):50-51,53.
[6]欧阳谅,万淑婉,涂国全,等.一株产生杀虫抗生素的链霉菌新种[J].微生物学报,1984,24(3):195-199.
[7]王明兹,施巧琴,庄惠如,等.紫球藻对抗生素的生物学效应[J].福建师范大学学报(自然科学版),2004,20(3):59-62.
[8]LUO Y,XU L,RYSZ M,et al.Occurrence and transport of tetracycline,sulfonamide,quinolone,and macrolide antibiotics in the Haihe river basin,China[J].Environ Sci Technol,2011,45(5):1827-1833.
[9]HUANG X,LIU C X,LI K,et al.Occurrence and distribution of veterinary antibiotics and tetracycline resistance genes in farmland soils around swine feedlots in Fujian Province,China[J].Environ Sci Pollut Res,2013,20(12):9066-9074.
[10]WEI R C,GE F,HUANG S Y,et al.Occurrence of veterinary antibiotics in animal wastewater and surface water around farms in Jiangsu Province,China[J].Chemosphere,2011,82(10):1408-1414.
[11]程宪伟,梁银秀,祝惠,等.人工湿地处理水体中抗生素的研究进展[J].湿地科学,2017,15(1):125-131.
[12]牛瑞华.人工湿地对磺胺类抗生素的去除效果及影响因素研究[D].上海:东华大学,2014.
[13]杨芳,陶然,杨扬,等.人工湿地中抗生素抗性大肠杆菌和抗性基因的去除与分布[J].环境工程学报,2013,7(6):2057-2062.
[14]郑加玉.养殖废水中抗生素及抗性基因在垂直流人工湿地中的去除[D].哈尔滨:东北林业大学,2013.
[15]黄锦楼,陈琴,许连煌.人工湿地在应用中存在的问题及解决措施[J].环境科学,2013,34(1):401-408.
[16]项学敏,宋晨,周集体,等.人工湿地水处理技术研究进展存在问题与改进[J].环境科学与技术,2006,29(10):101-102,114.
[17]李雪,王琳,王丽.微生物燃料电池-人工湿地耦合系统处理污水及产电性能研究[J].水处理技术,2018,44(2):109-114.
[18]ZHANG J W,ZHANG E R,SCOTT K,et al.Enhanced electricity production by use of reconstituted artificial consortia of estuarine bacteria grown as biofilms[J].Environ Sci Technol,2012,46(5):2984-2992.
[19]刘丽红.微生物燃料电池阳极活性菌及其对功率密度曲线回折的影响[D].哈尔滨:哈尔滨工业大学,2014.
[20]方舟.人工湿地型微生物燃料电池同步降解偶氮染料与产电的特性及机理[D].南京:东南大学,2017.
[21]叶晔捷,宋天顺,徐源,等.微生物燃料电池产电的影响因素[J].过程工程学报,2009,9(3):526-530.
[22]李薛晓,程思超,方舟,等.湿地基质及阴极面积对人工湿地型微生物燃料电池去除偶氮染料同步产电的影响[J].环境科学,2017,38(5):1904-1910.
[23]王秀芳.高比表面积活性炭的制备、表征及应用[D].广州:华南理工大学,2006.
[24]曾植.阴阳极同时作用电化学法降解有机污染物的研究[D].长沙:湖南大学,2008.
[25]刘荣华.微生物燃料电池中污染物的强化降解[D].合肥:中国科学技术大学,2014.
[26]孙敏.微生物燃料电池的功能拓展和机理解析[D].合肥:中国科学技术大学,2009.