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.
作者
何柳
邓钦文
周天豪
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)
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)。
关键词
铀污染废水
合果芋
内生菌
共生体系
联合修复
uranium contaminated wastewater
Syngonium podophyllum Schott
endophytes
symbiotic system
combined remediation
