合果芋-内生菌共生体系修复低浓度铀废水的实验研究  

Syngonium Podophyllum Schott-Endophytes Joint Remediation of Uranium Contaminated Wastewater

作　　者：何柳 邓钦文 周天豪[1,2,3] 王帆 袁巧林 HE Liu;DENG Qinwen;ZHOU Tianhao;WANG Fan;YUAN Qiaolin(School of Resource Environment and Safety Engineering,University of South China,Hengyang,Hunan 421001,China;Key Discipline Laboratory for National Defense for Biotechnology in Uranium Mining and Hydrometallurgy,University of South China,Hengyang,Hunan 421001,China;Hengyang Key Laboratory of Soil Pollution Control and Remediation,University of South China,Hengyang,Hunan 421001,China)

机构地区：[1]南华大学资源环境与安全工程学院,湖南衡阳421001 [2]南华大学铀矿冶生物技术国防重点学科实验室,湖南衡阳421001 [3]南华大学衡阳市土壤污染控制与修复重点实验室,湖南衡阳421001

出　　处：《南华大学学报（自然科学版）》2020年第3期80-85,共6页Journal of University of South China：Science and Technology

基　　金：湖南省自然科学基金立项项目(2018JJ2330);湖南省教育厅科学研究项目(16B223)。

摘　　要：针对低浓度铀废水的修复,实验以合果芋与内生细菌Pseudomonas sp.XNN8和放线菌XNG3构建共生体系,研究植物-微生物联合修复铀污染废水。研究结果表明共生体系修复效果优于未定殖的合果芋,在0.5 mg/L铀废水中达到最高铀富集率98.34%。在0.5 mg/L、1 mg/L、2 mg/L铀废水中,溶液中的浓度分别降至16.615μg/L、17.903μg/L、26.067μg/L,均在排放标准0.05 mg/L以下,因此该共生体系可用于低浓度铀废水修复。红外表征显示,内生菌可能增加了—OH含量或强化了—OH对铀的结合作用。Aiming at the remediation of low-concentration uranium wastewater,a symbiotic system was established with Syngonium podophyllum Schott,endophytic bacteria Pseudomonas sp.XNN8 and actinomycetes XNG3 to study plant-microorganism remediation of u ranium polluted wastewater.The result of research shows that the repair effect of symbiotic system was better than that of uncolonized Syngonium podophyllum Schott.The highest uranium enrichment rate was 98.34%in 0.5 mg/L uranium wastewater.In 0.5 mg/L,1 mg/L and 2 mg/L uranium waste water,the concentration of the solution decreased to 16.615μg/L,17.903μg/L and 26.067μg/L respectively.Their concentration was all reduced to the discharge standard of 0.05 mg/L.Therefore,the symbiotic system can be used for the remediation of low concentration uranium wastewater.Infrared characterization showed that endophytes may increase the content of—OH or strengthen the binding of—OH to uranium.

关 键 词：铀污染废水 合果芋 内生菌 共生体系 联合修复 

分 类 号：X52[环境科学与工程—环境工程]