摘要
为研究赤霉素(GAs)强化4种微藻处理技术体系(小球藻单养、小球藻+螺旋聚孢霉、小球藻+灵芝菌和小球藻+秀珍菇)对模拟养猪废水中抗生素的去除效果,通过添加不同浓度的GAs,分析4种微藻处理技术体系中小球藻的日生产量、比生长率、叶绿素a含量变化,以及监测模拟养猪废水中盐酸四环素(TC)、盐酸土霉素(OTC)、磺胺嘧啶(SMZ)、磺胺二甲嘧啶(SMX)、磺胺甲噁唑(SMM)5种抗生素的去除率,筛选出最佳GAs浓度下优良的微藻处理技术。结果表明:1)当GAs初始质量浓度为50 mg/L时,4种微藻处理技术效果最佳。2)小球藻+螺旋聚孢霉处理技术优于其他3种微藻处理技术,其对抗生素的去除率(第7天)分别达到94.41%±2.79%(TC)、90.31%±5.24%(OTC)、59.15%±5.48%(SMZ)、61.54%±5.82%(SMX)和54.97%±4.38%(SMM)。该处理技术对四环素类抗生素的削减效果要好于磺胺类抗生素。3)在净化处理时间上,第7天时效果最佳。研究结果为藻菌处理技术去除抗生素的研究和应用提供了一定的参考。
The study aimed to investigate the removal efficiency of antibiotics from the simulated swine wastewater by four microalgae treatment systems enhanced with gibberellin(GAs):Chlorella vulgaris monoculture,Chlorella vulgaris+Clonostachys rosea,Chlorella vulgaris+Ganoderma lucidum,Chlorella vulgaris+Pleurotus pulmonarius.Different concentrations of GAs were added to analyze the daily production,specific growth rate,and chlorophyll a content changes in microalgae within these systems,as well as to monitor the removal rates of tetracycline(TC),oxytetracycline(OTC),sulfamethazine(SMZ),sulfamethoxazole(SMX),and sulfamethizole(SMM)from the simulated swine wastewater.The optimal GAs concentration and superior microalgae treatment technology were identified.The results indicated:1)the best treatment effect was achieved when the initial mass concentration of GAs was 50 mg/L for all four microalgae treatment systems.2)The treatment system of Chlorella vulgaris+Clonostachys rosea outperformed the other three treatment systems,with average antibiotic removal rate reaching 94.41%±2.79%(TC),90.31%±5.24%(OTC),59.15%±5.48%(SMZ),61.54%±5.82%(SMX),and 54.97%±4.38%(SMM)on the 7th day.This treatment technology was more effective in reducing tetracycline-class antibiotic than sulfonamide-class antibiotic.3)In terms of purification time,the best effect was observed on the 7th day.The findings could provide a reference for the study and application of algae-fungus treatment technology for the removal of antibiotic.
作者
刘劲松
谷得明
徐俊
许之扬
李硕
胡久荣
LIU Jinsong;GU Deming;XU Jun;XU Zhiyang;LI Shuo;HU Jiurong(College of Advanced Materials Engineering,Jiaxing Key Laboratory of Research and Application of New Materials for Green and Low Carbon,Jiaxing Nanhu University,Jiaxing Zhejiang 314001;School of Municipal and Environmental Engineering,Henan University of Urban Construction,Pingdingshan Henan 467036)
出处
《环境污染与防治》
CAS
CSCD
北大核心
2024年第9期1245-1250,1257,共7页
Environmental Pollution & Control
基金
嘉兴市公益性研究计划项目(No.2021AY10044、No.2023AY11025)
河南省高等学校重点科研项目(No.23B610011)
国家级大学生创新创业训练计划项目(No.202313291009)。
关键词
微藻处理技术
赤霉素
养猪废水
抗生素
去除效果
microalgae treatment technology
gibberellin
swine wastewater
antibiotic
removal effect
