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| Assessing organic matter removal from municipal wastewater by excitation-emission matrix fluorescence |
| LI Hai-bo1,2,3, SUN Chen2,3, LIU Xiao-ling2,3, TIAN Zhi-yong2,3, XIANG Lian-cheng2,3, WANG Si-yu2,3, ZHOU Bei-hai1 |
1. Department of Environmental Engineering, School of Civil and Environmental Engineering, University of Science and Technology Beijing, Beijing 100083, China;
2. State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China;
3. Department of Urban Water Environmental Research, Chinese Research Academy of Environmental Sciences, Beijing 100012, China |
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Abstract A novel Enhanced Biological Phosphorus Removal (EBPR)-Sulfur Autotrophic Denitrification integrated system was applied to treatment of municipal wastewater with low COD/TN ratio. Its pollutants removal performance was evaluated by the combination of fluorescence regional integration, materials balance calculation and redundancy analysis. The results showed that, with the influent COD/TN ratio of 4.5~6.0, the average effluent concentrations of TN, NH4+-N and TP were 1.31, 1.11 and 0.23mg/L, and the corresponding removal rates reached 96.3%, 96.0% and 86.9%, respectively. Moreover, the normalized integral volumes of regions I~V were decreased by 73.7%, 64.3%, 46.9%, 61.3% and 31.8%, respectively. Material balance calculation further indicated that the aromatic protein-like and the soluble microbial byproduct-like materials were significantly decreased in the non-aerobic zones; the aromatic protein-like and the fulvic acid-like materials were more effectively removed in the aerobic zone. Meanwhile, redundancy analysis showed that phosphorus releasing was correlated with soluble microbial byproduct-like materials. In addition, autotrophic nitrification, phosphorus uptake and organic matter removal could simultaneously occur in the aerobic zone.
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Received: 06 January 2016
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| [1] |
Zhang Y, WANG X C, GE Y, et al. Effects of annual harvesting on plants growth and nutrients removal in surface-flow constructed wetlands in northwestern China[J]. Ecol. Eng., 2015, 83:268-275.
|
| [2] |
Huang J, Xu J, Liu X, et al. Spatial distribution pattern analysis of groundwater nitrate nitrogen pollution in Shandong intensive farming regions of China using neural network method[J]. Math. Comput. Model., 2011,54:995-1004.
|
| [3] |
范彬,曲久辉,刘锁祥,等.饮用水中硝酸盐的脱除[J]. 环境污染治理技术与设备, 2000,1:44-50.
|
| [4] |
Show K, Lee D, Pan X. Simultaneous biological removal of nitrogen-sulfur-carbon: Recent advances and challenges[J]. Biotechnol. Adv., 2013,31:409-420.
|
| [5] |
中华人民共和国国务院.水污染防治行动计划[M]. 北京:人民出版社, 2015.
|
| [6] |
Henze M, Van Loosdrecht M C M, Ekama G A, et al. Biological wastewater treatment: principles, modelling and design[M]. London: IWA Publishing, 2008.
|
| [7] |
Cao G, Wang S, Peng Y, et al. Biological nutrient removal by applying modified four step-feed technology to treat weak wastewater[J]. Bioresour. Technol., 2013,128:604-611.
|
| [8] |
Chen Y, Li B, Ye L, et al. The combined effects of COD/N ratio and nitrate recycling ratio on nitrogen and phosphorus removal in anaerobic/anoxic/aerobic (A2/O)-biological aerated filter (BAF) systems[J]. Biochem. Eng. J., 2015,93:235-242.
|
| [9] |
Khin T, Annachhatre A P. Novel microbial nitrogen removal processes[J]. Biotechnol. Adv., 2004,22:519-532.
|
| [10] |
Oehmen A, Lemos P C, Carvalho G, et al. Advances in enhanced biological phosphorus removal: From micro to macro scale[J]. Water Res., 2007,41:2271-2300.
|
| [11] |
Chen W, Westerhoff P, Leenheer J A, et al. Fluorescence excitation-emission matrix regional integration to quantify spectra for dissolved organic matter[J]. Environ. Sci. Technol., 2003,37:5701-5710.
|
| [12] |
Ou H S, Wei C H, Wu H Z, et al. Novel insights into anoxic/aerobic1/aerobic2biological fluidized-bed process for coke wastewater treatment by fluorescence excitation-emission matrix spectra coupled with parallel factor analysis[J]. Chemosphere, 2014,113:158-164.
|
| [13] |
陈玲.污水处理厂达标外排水对受纳水体及修复植物的影响研究[D]. 苏州:苏州大学, 2009.
|
| [14] |
杨琳,黄显怀,薛莉娉,等.城市污水处理过程中有机污染物的荧光光谱表征[J]. 工业用水与废水, 2013,44:10-13.
|
| [15] |
高连敬,杜尔登,崔旭峰,等.三维荧光结合荧光区域积分法评估净水厂有机物去除效果[J]. 给水排水, 2012,38:51-56.
|
| [16] |
Yang L, Shin H S, Hur J. Estimating the concentration and biodegradability of organic matter in 22wastewater treatment plants using fluorescence excitation emission matrices and parallel factor analysis[J]. Sensors, 2014,14:1771-1786.
|
| [17] |
安莹,王志伟,李彬,等.盐度冲击下MBR污泥SMP和EPS的三维荧光光谱解析[J]. 中国环境科学, 2014,34(7):1754-1762.
|
| [18] |
Wu J, ZHANG H, HE P J, et al. Insight into the heavy metal binding potential of dissolved organic matter in MSW leachate using EEM quenching combined with PARAFAC analysis[J]. Water Res., 2011,45:1711-1719.
|
| [19] |
卢松,江韬,张进忠,等.两个水库型湖泊中溶解性有机质三维荧光特征差异[J]. 中国环境科学, 2015,35(2):516-523.
|
| [20] |
Yu H, Song Y, Tu X, et al. Assessing removal efficiency of dissolved organic matter in wastewater treatment using fluorescence excitation emission matrices with parallel factor analysis and second derivative synchronous fluorescence[J]. Bioresour. Technol., 2013,144:595-601.
|
| [21] |
国家环境保护总局,水和废水监测分析方法编委会.水和废水监测分析方法,第四版[M]. 北京:中国环境科学出版社, 2002.
|
| [22] |
姚璐璐,涂响,于会彬,等.三维荧光区域积分评估城市污水中溶解性有机物的去除[J]. 环境工程学报, 2013,7:411-416.
|
| [23] |
Zou J, Li Y, Zhang L, et al. Understanding the impact of influent nitrogen concentration on granule size and microbial community in a granule-based enhanced biological phosphorus removal system[J]. Bioresour. Technol., 2015,177:209-216.
|
| [24] |
Wu D, Ekama G A, Wang H G, et al. Simultaneous nitrogen and phosphorus removal in the sulfur cycle-associated Enhanced Biological Phosphorus Removal (EBPR) process[J]. Water Res., 2014,49:251-264.
|
| [25] |
陈茂福,吴静,律严励,等.城市污水的三维荧光指纹特征[J]. 光学学报, 2008,28:578-582.
|
| [26] |
吴静,崔硕,谢超波,等.好氧处理后城市污水荧光指纹的变化[J]. 光谱学与光谱分析, 2011,31:3302-3306.
|
| [27] |
郝瑞霞,曹可心,邓亦文.城市污水处理过程中有机污染物三维荧光特性的变化规律[J]. 分析测试学报, 2007,26:789-792.
|
| [28] |
Bafhoth S A, Sharma S K, Amy G L. Tracking natural organic matter (NOM) in a drinking water treatment plant using fluorescence excitation-emission matrices and PARAFAC[J]. Water Res., 2011,45:797-809.
|
| [29] |
Barker D J, Stuckey D C. A review of soluble microbial products (SMP) in wastewater treatment system[J]. Water Res., 1999,33:3063-3082.
|
| [30] |
Li W H, Sheng G P, Liu X W, et al. Characterizing the extracellular and intracellular fluorescent products of activated sludge in a sequencing batch reactor[J]. Water Res., 2008,42: 3173-3181.
|
|
|
|
