| 纳米ZnO浓度对EBPR系统除磷性能的影响 |
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| 引用本文： | 施延君,董树杰,陈英,胡亚琴,李琦,陈孝孝.纳米ZnO浓度对EBPR系统除磷性能的影响[J].能源环境保护,2020,34(2):74-77. |
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| 作者姓名： | 施延君 董树杰 陈英 胡亚琴 李琦 陈孝孝 |
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| 作者单位： | 杭州余杭经济技术开发区产业服务中心,浙江 杭州311199;浙江裕腾百诺环保科技股份有限公司,浙江 杭州311199;浙江省工业环保设计研究院有限公司,浙江 杭州310012 |
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| 摘 要： | 采用SBR工艺接种成熟的强化生物除磷(EBPR)絮状污泥,研究了不同浓度纳米ZnO(ZnO NPs)对颗粒化EBPR系统性能的影响。结果表明:低浓度(≤1 mg/L)ZnO NPs可促进厌氧释磷和好氧吸磷作用;随着ZnO NPs浓度的增加,磷酸盐及COD去除能力受到明显抑制;在厌氧释磷过程中,PAOs对ZnO NPs的毒性更为敏感;与未受ZnO NPs污染的系统相比,ZnO NPs浓度为15 mg/L条件下的释磷速率与吸磷速率分别下降了0.1 mg/(gVSS·min)和0.15 mg/(gVSS·min)。
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| 关 键 词： | 纳米氧化锌 颗粒化EBPR系统 抑制 动力学 |
Effect of ZnO nanoparticles concentration on the phosphorus removal of a EBPR system |
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| SHI Yanjun,DONG Shujie,CHEN Ying,HU Yaqin,LI Qi,CHEN Xiaoxiao.Effect of ZnO nanoparticles concentration on the phosphorus removal of a EBPR system[J].Energy Environmental Protection,2020,34(2):74-77. |
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| Authors: | SHI Yanjun DONG Shujie CHEN Ying HU Yaqin LI Qi CHEN Xiaoxiao |
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| Institution: | (Hangzhou Yuhang Economic and Technological Development Zone Industrial Service Center,Hangzhou 311199,China;Zhejiang Yuteng Bio Enviromental Protection Technology Co.,Ltd.,Hangzhou 311199,China;Zhejiang Province Industrial EP Design&Research institute Co.,Ltd.,Hangzhou 310012,China) |
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| Abstract: | The impact of ZnO nanoparticles(ZnO NPs)on a granule-based enhanced biological phosphorus removal(EBPR)system inoculated with mature EBPR sludge by SBR process was studied.The results show that low concentration of ZnO NPs(≤1 mg/L)promotes phosphorus release under the anaerobic condition and phosphorus absorption under the aerobic condition.The removal of phosphates and COD was significantly inhibited with the increase of ZnO NPs concentration.Phosphorus accumulation organisms(PAOs)is more sensitive to the toxicity of ZnO NPs during the phosphorus release process than the phosphorus absorption process.Compared with unpolluted EBPR systems,the phosphorus release and absorption rates of the systems polluted by 15 mg/L ZnO NPs decreases by 0.1 mg/(gVSS·min)and 0.15 mg/(gVSS·min),respectively. |
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| Keywords: | ZnO NPs Granule-based EBPR system Inhibition Dynamic |
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