四环素和铜离子对生物除磷微生物的作用效应

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摘要选取污水中的污染物四环素和铜离子为二元混合物，以比吸磷率来表征二元混合物对污水生物除磷微生物的联合作用效应.采用直接均分射线法设计3种二元混合物的浓度配比（Ratio1，Ratio2，Ratio3）；采用Logistic方程拟合试验数据获得浓度-效应曲线，并利用浓度加和模型分析二元混合物对生物除磷微生物的联合作用效应及关系.结果表明，不同浓度配比的二元混合物对生物除磷微生物的抑制效应均随着时间的增加逐渐增强，具有明显的时间依赖性.浓度加和模型分析表明，随着反应时间的延长，不同浓度配比的二元混合物对微生物的作用关系均是由拮抗作用逐渐过渡为加和作用和协同作用.但3组不同浓度配比的二元混合物对生物除磷微生物的相互作用也存在明显不同，在Ratio1和Ratio3中各组分所占比例差别较大，拮抗作用较明显，而在Ratio2中各组分所占比例差别较小，拮抗作用相对较弱.

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	张华
	蒋伟
	刘亚丽
	王金花
	黄健
	陶海涛
	曹雪枫
	方楠

关键词 ：生物除磷, 四环素, 铜离子, 联合作用, 抑制效应

Abstract：This paper focused on the specific phosphorus absorption rate to characterize the combined effect of tetracycline and copper ion binary mixtures on the biological phosphorus removal by microorganisms. Three mixtures with different concentration ratios (ratio 1, ratio 2, ratio 3) were designed by the linear average ray method. The relationship curves between the concentration and the action effect were obtained by fitting the experimental data with logistic equations. The combined effects of mixtures on the phosphorus removal microorganisms were analyzed by the concentration addition model. The results showed that the inhibition effect of mixtures on phosphorus removal microorganisms increased gradually with time. The concentration addition model revealed that the combined effect of mixtures with different ratios on the microorganisms gradually changed from antagonistic effect to additive effect and synergistic effect as the treatment time increased. However, there were obvious differences in the composition of these effects. In ratio1and ratio3, there were significant differences in the proportions of each effect, and the antagonistic effect was obvious. However, the antagonistic effect was relatively weak in ratio2 where each effect had similar proportions.

Key words： biological phosphorus removal tetracycline copper ion combined action inhibitory effect

收稿日期: 2020-09-19

PACS:

X703

基金资助:安徽省自然科学基金面上项目（1808085MB34,1908085ME142）；安徽省高校省级自然科学研究重大项目（KJ2019ZD52）；安徽建筑大学引进人才及博士启动（2018QD20）

通讯作者: 黄健,教授,huangjianpaper@163.com E-mail: huangjianpaper@163.com

作者简介: 张华(1978-),女,安徽界首人,教授,博士,主要从事水处理理论与技术研究.发表论文30余篇.

引用本文:

张华, 蒋伟, 刘亚丽, 王金花, 黄健, 陶海涛, 曹雪枫, 方楠. 四环素和铜离子对生物除磷微生物的作用效应[J]. 中国环境科学, 2021, 41(5): 2211-2218. ZHANG Hua, JIANG Wei, LIU Ya-li, WANG Jin-hua, HUANG Jian, TAO Hai-tao, CAO Xue-feng, FANG Nan. Action effects of tetracycline and copper ion on the microorganisms during biological phosphorus removal. CHINA ENVIRONMENTAL SCIENCECE, 2021, 41(5): 2211-2218.

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http://www.zghjkx.com.cn/CN/ 或 http://www.zghjkx.com.cn/CN/Y2021/V41/I5/2211

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