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不同C/N条件下纳米零价铁对反硝化颗粒污泥性能的影响

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王翻翻, 钱飞跃, 沈耀良, 王建芳, 夏莲, 沈诗捷. 不同C/N条件下纳米零价铁对反硝化颗粒污泥性能的影响[J]. 环境工程学报, 2016, 10(6): 2833-2839. doi: 10.12030/j.cjee.201508176
引用本文: 王翻翻, 钱飞跃, 沈耀良, 王建芳, 夏莲, 沈诗捷. 不同C/N条件下纳米零价铁对反硝化颗粒污泥性能的影响[J]. 环境工程学报, 2016, 10(6): 2833-2839. doi: 10.12030/j.cjee.201508176
shu
Wang Fanfan, Qian Feiyue, Shen Yaoliang, Wang Jianfang, Xia Lian, Shen Shijie. Effects of nanoscale zero-valent iron on performance of denitrifying granular sludge at different C/N ratios[J]. Chinese Journal of Environmental Engineering, 2016, 10(6): 2833-2839. doi: 10.12030/j.cjee.201508176
Citation: Wang Fanfan, Qian Feiyue, Shen Yaoliang, Wang Jianfang, Xia Lian, Shen Shijie. Effects of nanoscale zero-valent iron on performance of denitrifying granular sludge at different C/N ratios[J]. Chinese Journal of Environmental Engineering, 2016, 10(6): 2833-2839. doi: 10.12030/j.cjee.201508176
shu

不同C/N条件下纳米零价铁对反硝化颗粒污泥性能的影响

  • 1.

    苏州科技学院环境科学与工程学院, 苏州 215009

  • 2.

    江苏省环境科学与工程重点实验室, 苏州 215009

  • 3.

    江苏省水处理技术与材料协同创新中心, 苏州 215009

  • 基金项目:

    国家自然科学基金资助项目(51308367)

    江苏省高校自然科学研究基金项目(15KJB610013)

    江苏高校优势学科建设工程资助项目

    苏州科技学院研究生创新工程项目(SKCX14-019)

  • 中图分类号: X703

Effects of nanoscale zero-valent iron on performance of denitrifying granular sludge at different C/N ratios

  • 1.

    School of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou 215009, China

  • 2.

    Jiangsu Key Laboratory of Environmental Science and Engineering, Suzhou 215009, China

  • 3.

    Jiangsu Collaborative Innovation Center of Technology and Material of Water Treatment, Suzhou 215009, China

  • Fund Project:

  • 摘要: 为了探明纳米零价铁(nZVI)在反硝化处理系统中的"剂量-效应"关系,采用批次实验,考察了不同C/N比条件下,nZVI投加量(0~100 mg/L)对反硝化颗粒污泥(DGS)脱氮性能的影响,分析了氮素形态、比反硝化速率(μ值)、胞外聚合物(EPS)组成及铁元素分布的变化规律。结果表明,当原水中nZVI浓度高于5 mg/L时,DGS对硝态氮和COD去除率均出现下降,导致剩余亚硝态氮浓度上升。在不同C/N比条件下,nZVI对DGS比反硝化速率的抑制符合Haldane模型,R2在0.944~0.995之间。随着C/N比的增大,颗粒污泥对nZVI的吸附量明显提高,抑制系数(KIH)大幅降低,DGS对nZVI抑制作用的抗性逐渐减弱。当nZVI投加量超过25 mg/L时,EPS中蛋白质与多糖含量开始下降,这不利于维持DGS颗粒结构的稳定性。
    Abstract: To explore the dose-response relationship of nanoscale zero-valent iron (nZVI) in biological denitrification systems, the effects of nZVI dosage (0 mg/L to 100 mg/L) on the performance of denitrifying granular sludge (DGS) at different C/N ratios were investigated in this study. During the study, the transformation of nitrogen forms, the specific denitrifying rates (μ values), the composition of extracellular polymeric substances (EPS), and the distribution of elemental iron were analyzed in detail. The results showed that the removal efficiencies of nitrate nitrogen and COD decreased with nZVI dosages higher than 5 mg/L, whereas the residual concentration of nitrite nitrogen increased significantly. Moreover, the inhibition of nZVI dosages on the specific denitrifying rates was well fitted by the Haldane model, as the values of R2 ranged from 0.944 to 0.995. In addition, both a higher adsorbing capacity and lower inhibition coefficient (KIH) were observed with an increase in C/N ratios. This indicated that the resistance of DGS to nZVI toxicity weakened gradually. When the dosage of nZVI was higher than 25 mg/L, the concentrations of protein and polysaccharides in the EPS greatly decreased, which would decrease the structural stability of the granular sludge.
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  • [1] Crane R. A., Scott T. B. Nanoscale zero-valent iron: Future prospects for an emerging water treatment technology. Journal of Hazardous Materials, 2012, 211-212: 112-125
    [2] 常雪灵, 祖艳, 赵宇亮. 纳米毒理学与安全性中的纳米尺寸与纳米结构效应. 科学通报, 2011, 56(2): 108-118 Chang Xueling, Zhu Yan, Zhao Yuliang. Size and structure effects in the nanotoxic response of nanomaterials. Chinese Science Bulletin, 2011, 56(2): 108-118(in Chinese)
    [3] Wu Donglei, Shen Yanhong, Ding Aqiang, et al. Effects of nanoscale zero-valent iron particles on biological nitrogen and phosphorus removal and microorganisms in activated sludge. Journal of Hazardous Materials, 2013, 262: 649-655
    [4] Bhuvanesh S., Maneesh N., Sreekrishnan T. R. Start-up and performance of a hybrid anoxic reactor for biological denitrification. Bioresource Technology, 2013, 129: 78-84
    [5] Lew B., Stief P., Beliavski M., et al. Characterization of denitrifying granular sludge with and without the addition of external carbon source. Bioresource Technology, 2012, 124: 413-420
    [6] Li Wei, Zheng Ping, Ji Junyuan, et al. Floatation of granular sludge and its mechanism: A key approach for high-rate denitrifying reactor. Bioresource Technology, 2014, 152: 414-419
    [7] Liu Yajuan, Sun D. D. Calcium augmentation for enhanced denitrifying granulation in sequencing batch reactors. Process Biochemistry, 2011, 46(4): 987-992
    [8] Wang Wei, Jin Zhaohui, Li Tielong, et al. Preparation of spherical iron nanoclusters in ethanol-water solution for nitrate removal. Chemosphere, 2006, 65(8): 1396-1404
    [9] Xu Yinhui, Zhao Dongye. Reductive immobilization of chromate in water and soil using stabilized iron nanoparticles. Water Research, 2007, 41(10): 2101-2108
    [10] Adav S. S., Lee D. J. Characterization of extracellular polymeric substances (EPS) from phenol degrading aerobic granules. Journal of the Tai wan Institute of Chemical Engineers, 2011, 42(4): 645-651
    [11] Adav S. S., Lee D. J. Extraction of extracellular polymeric substances from aerobic granule with compact interior structure. Journal of Hazardous Materials, 2008, 154(1-3): 1120-1126
    [12] Luo Jinghai, Hao Tianwei, Wei Li, et al. Impact of influent COD/N ratio on disintegration of aerobic granular sludge. Water Research, 2014, 62(7): 127-135
    [13] 郭小春. 纳米氧化物在污水中的特性及其对SBR系统影响的研究. 哈尔滨: 哈尔滨工业大学硕士学位论文, 2012 Guo Xiaochun. Study on nanometer dioxide characteristics in sewage and its impact on SBR system. Harbin: Master Dissertation of Harbin Institute of Technology, 2012(in Chinese)
    [14] 马勇, 彭永臻. A/O生物脱氮工艺的反硝化动力学试验. 中国环境科学, 2006, 26(4): 464-468 Ma Yong, Peng Yongzhen. Denitrification dynamics for A/O biological nitrogen removal technology. China Environmental Science, 2006, 26(4): 464-468(in Chinese)
    [15] Elefsiniotis P., Wareham D. G. Utilization patterns of volatile fatty acids in the denitrification reaction. Enzyme and Microbial Technology, 2007, 41(1-2): 92-97
    [16] Martienssen M., Sch ps R. Population dynamics of denitrifying bacteria in a model biocommunity. Water Research, 1999, 33(3): 639-646
    [17] 袁怡, 黄勇, 邓慧萍, 等. C/N比对反硝化过程中亚硝酸盐积累的影响分析. 环境科学, 2013, 34(4): 1416-1420 Yuan Yi, Huang Yong, Deng Huiping, et al. Effect of C/N ratio on nitrite accumulation during denitrification process. Environmental Science, 2013, 34(4): 1416-1420(in Chinese)
    [18] 程喆, 王晓昌, 张永梅, 等. 厨余发酵液作为反硝化碳源的规律研究. 环境工程学报, 2015, 9(2): 719-724 Cheng Zhe, Wang Xiaochang, Zhang Yongmei, et al. Fermentation liquid of food waste as carbon source for denitrification. Chinese Journal of Environmental Engineering, 2015, 9(2): 719-724(in Chinese)
    [19] Ma Dengyue, Wang Xinhua, Song Chao, et al. Aerobic granulation for methylene blue biodegradation in a sequencing batch reactor. Desalination, 2011, 276(1-3): 233-238
    [20] 王越, 翟洪艳, 季民, 等. Cr(VI) 对活性污泥硝化活性的抑制及在污泥中的分布特点. 环境科学学报, 2015, 35(5): 1435-1443 Wang Yue, Zhai Hongyan, Ji Min, et al. Inhibitory effects of Cr(VI) on nitrification activity and Cr(VI) distribution inactivated sludge. Acta Scientiae Circumstantiae, 2015, 35(5): 1435-1443(in Chinese)
    [21] 石先阳, 孙庆业. 苯酚的厌氧生物处理. 环境工程学报, 2009, 3(8): 1409-1413 Shi Xianyang, Sun Qingye. Anaerobic biological treatment of phenol. Chinese Journal of Environmental Engineering, 2009, 3(8): 1409-1413(in Chinese)
    [22] 东美英. 纳米铁对微生物潜在效应的研究. 天津: 南开大学硕士学位论文, 2011 Dong Meiying. Studies on effects of nano zero-valent iron on the microbial populations. Tianjin: Master Dissertation of Nankai University, 2011(in Chinese)
    [23] 钱飞跃, 王琰, 王建芳, 等. 好氧颗粒污泥中凝胶型聚多糖的特性研究进展. 化学通报, 2015, 78(4): 320-324 Qian Feiyue, Wang Yan, Wang Jianfang, et al. Advances in the study on gel-forming property of exopolysaccharides isolated from aerobic granular sludge. Chemistry, 2015, 78(4): 320-324(in Chinese)
    [24] 王树涛, 李素萍, 王未青, 等. ZnO纳米颗粒对SBR活性污泥活性的影响. 中国环境科学, 2014, 34(10): 2575-2580 Wang Shutao, Li Suping, Wang Weiqing, et al. Impact of ZnO nanoparticles on the activity of the activated sludge in SBR. China Environmental Science, 2014, 34(10): 2575-2580(in Chinese)
    [25] Luongo L. A., Zhang Xiaoqi. Toxicity of carbon nanotubes to the activated sludge process. Journal of Hazardous Materials, 2010, 178(1-3): 356-362
    [26] 葛利云. 催化铁法与生物法耦合中胞内外聚合物的研究. 上海: 同济大学博士学位论文, 2007 Ge Liyun. Study on polymeric substances internal and external cellular at catalyzed Iron internal electrolysis coupling with biological threatment. Shanghai: Doctor Dissertation of Tongji University, 2007(in Chinese)
    [27] Mu Hui, Zheng Xiong, Chen Yinguang, et al. Response of anaerobic granular sludge to a shock load of zinc oxide nanoparticles during biological wastewater treatment. Environmental Science & Technology, 2011, 46(11): 5997-6003
    [28] Kiser M. A., Ryu H., Jang H., et al. Biosorption of nanoparticles to heterotrophic wastewater biomass. Water Research, 2010, 44(14): 4105-4114
    [29] 王琳, 李煜. 酸度对好氧颗粒污泥生物吸附含铅废水影响的研究. 环境工程学报, 2009, 3(7): 1160-1164 Wang Lin, Li Yu. Effect of acidity on biosorption of Pb2+ wastewater by aerobic granular sludge. Chinese Journal of Environmental Engineering, 2009, 3(7): 1160-1164(in Chinese)
    [30] 王建龙, 韩英健, 钱易. 微生物吸附金属离子的研究进展. 微生物学通报, 2000, 27(6): 449-452 Wang Jianlong, Han Yingjian, Qian Yi. Research advances in adsorption of heavy metals by microbial biomass. Microbiology China, 2000, 27(6): 449-452(in Chinese)
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  • 收稿日期:  2015-11-22
  • 刊出日期:  2016-06-03
王翻翻, 钱飞跃, 沈耀良, 王建芳, 夏莲, 沈诗捷. 不同C/N条件下纳米零价铁对反硝化颗粒污泥性能的影响[J]. 环境工程学报, 2016, 10(6): 2833-2839. doi: 10.12030/j.cjee.201508176
引用本文: 王翻翻, 钱飞跃, 沈耀良, 王建芳, 夏莲, 沈诗捷. 不同C/N条件下纳米零价铁对反硝化颗粒污泥性能的影响[J]. 环境工程学报, 2016, 10(6): 2833-2839. doi: 10.12030/j.cjee.201508176
shu
Wang Fanfan, Qian Feiyue, Shen Yaoliang, Wang Jianfang, Xia Lian, Shen Shijie. Effects of nanoscale zero-valent iron on performance of denitrifying granular sludge at different C/N ratios[J]. Chinese Journal of Environmental Engineering, 2016, 10(6): 2833-2839. doi: 10.12030/j.cjee.201508176
Citation: Wang Fanfan, Qian Feiyue, Shen Yaoliang, Wang Jianfang, Xia Lian, Shen Shijie. Effects of nanoscale zero-valent iron on performance of denitrifying granular sludge at different C/N ratios[J]. Chinese Journal of Environmental Engineering, 2016, 10(6): 2833-2839. doi: 10.12030/j.cjee.201508176
shu

不同C/N条件下纳米零价铁对反硝化颗粒污泥性能的影响

  • 1.  苏州科技学院环境科学与工程学院, 苏州 215009
  • 2.  江苏省环境科学与工程重点实验室, 苏州 215009
  • 3.  江苏省水处理技术与材料协同创新中心, 苏州 215009
  • 收稿日期:  2015-11-22
基金项目:

国家自然科学基金资助项目(51308367)

江苏省高校自然科学研究基金项目(15KJB610013)

江苏高校优势学科建设工程资助项目

苏州科技学院研究生创新工程项目(SKCX14-019)

摘要: 为了探明纳米零价铁(nZVI)在反硝化处理系统中的"剂量-效应"关系,采用批次实验,考察了不同C/N比条件下,nZVI投加量(0~100 mg/L)对反硝化颗粒污泥(DGS)脱氮性能的影响,分析了氮素形态、比反硝化速率(μ值)、胞外聚合物(EPS)组成及铁元素分布的变化规律。结果表明,当原水中nZVI浓度高于5 mg/L时,DGS对硝态氮和COD去除率均出现下降,导致剩余亚硝态氮浓度上升。在不同C/N比条件下,nZVI对DGS比反硝化速率的抑制符合Haldane模型,R2在0.944~0.995之间。随着C/N比的增大,颗粒污泥对nZVI的吸附量明显提高,抑制系数(KIH)大幅降低,DGS对nZVI抑制作用的抗性逐渐减弱。当nZVI投加量超过25 mg/L时,EPS中蛋白质与多糖含量开始下降,这不利于维持DGS颗粒结构的稳定性。

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