蛋白核小球藻
诺氟沙星
污水处理
活性污泥
抗生素
废水
藻类
铜绿微囊藻
小球藻
化学
制浆造纸工业
生物
小球藻
微生物学
环境工程
细菌
环境科学
蓝藻
植物
环丙沙星
工程类
遗传学
作者
Guixing Xiao,Jianqiu Chen,Pau Loke Show,Qiulian Yang,Jian Ke,Qi Zhao,Ruixin Guo,Yanhua Liu
出处
期刊:Chemosphere
[Elsevier]
日期:2021-11-01
卷期号:282: 130966-130966
被引量:27
标识
DOI:10.1016/j.chemosphere.2021.130966
摘要
Biological methods are promising treatment methods to remove pollutants from wastewater. Recently, microalgae have been proved to be of strong application potential in wastewater treatment. In this study, a microalga - antibiotic treatment system was built to evaluate the treatment capacity of microalgae in antibiotic wastewater. In the group with Chlorella pyrenoidosa, the removal rate of cefradine was 41.47 ± 0.62% after 24 h of treatment, which was 3.4 times higher than that without microalgae (12.37 ± 2.30%). Algal decomposition was the main removal mechanism. Meanwhile, the effect of multiple microalgae species on antibiotic treatment was studied. The removal rates of cefradine by C. pyrenoidosa cultivated in the filtered fluid of Microcystis aeruginosa were 75.48 ± 0.29%, which was significantly higher than those by C. pyrenoidosa only. Those indicated that multiple microalgae species strategy was a potential enhancement strategy for algae-based antibiotic treatment. Finally, amoxicillin and norfloxacin were used to study the treatment potential of this technology for more different kinds antibiotics and the integration of microalgae with activated sludge was also investigated. Amoxicillin can be quickly removed by microalgae, but the removal effect of norfloxacin by microalgae is poor. The refractory antibiotic norfloxacin can be treated by co-culturing microalgae and activated sludge. Those showed the good expansibility of microalgae-based technology. The findings indicated that with microalgae-based antibiotic removal method has good application potential, and combined with other technologies, it can effectively remove the refractory antibiotics.
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