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| Nitrogen Removal Improvement by Adding Peat in Deep Soil of Subsurface Wastewater Infiltration System |
| CHEN Pei-zhen, CUI Jian-yu, HU Lin, ZHENG Miao-zhuang, CHENG Shan-ping, HUANG Jie-wen , MU Kang-guo |
1、College of Resources and Environmental Sciences, China Agricultural University, Beijing 100193, P.R.China
2、National Energy R&D Center for Non-Food Biomass of China, China Agricultural University, Beijing 100193, P.R.China |
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摘要 In order to enhance the nitrogen removal, a subsurface wastewater infiltration system (SWIS) was improved by adding peat in deep soil as carbon source for denitrification process. The effects of addition of carbon source in the underpart of the SWIS on nitrogen removal at different influents (with the total nitrogen (TN) concentration 40 and 80 mg L-1, respectively) were investigated by soil column simulating experiments. When the relatively light pollution influent with 40 mg L-1 TN was used, the average concentrations of NO3 --N and TN in effluents were (4.69±0.235), (6.18±0.079) mg L-1, respectively, decreased by 32 and 30.8% than the control; the NO3 --N concentration of all effluents was below the maximum contaminant level of 10 mg L-1; as high as 92.67% of the TN removal efficiency was achieved. When relatively heavy pollution influent with 80 mg L-1 TN was used, the average concentrations of NO3 --N and TN in effluents were (10.2±0.265), (12.5±0.148) mg L-1 respectively, decreased by 20 and 21.2% than the control; the NO3 --N concentration of all effluents met the grade III of the national quality standard for ground water of China (GB/T 14848-1993) with the values less than 20 mg L-1; the TN removal efficiency of 94.1% was achieved. In summary, adding peat in the underpart of the SWIS significantly decreased TN and NO3 - -N concentration in effluents and the nitrogen removal efficiency improved significantly.
Abstract In order to enhance the nitrogen removal, a subsurface wastewater infiltration system (SWIS) was improved by adding peat in deep soil as carbon source for denitrification process. The effects of addition of carbon source in the underpart of the SWIS on nitrogen removal at different influents (with the total nitrogen (TN) concentration 40 and 80 mg L-1, respectively) were investigated by soil column simulating experiments. When the relatively light pollution influent with 40 mg L-1 TN was used, the average concentrations of NO3 --N and TN in effluents were (4.69±0.235), (6.18±0.079) mg L-1, respectively, decreased by 32 and 30.8% than the control; the NO3 --N concentration of all effluents was below the maximum contaminant level of 10 mg L-1; as high as 92.67% of the TN removal efficiency was achieved. When relatively heavy pollution influent with 80 mg L-1 TN was used, the average concentrations of NO3 --N and TN in effluents were (10.2±0.265), (12.5±0.148) mg L-1 respectively, decreased by 20 and 21.2% than the control; the NO3 --N concentration of all effluents met the grade III of the national quality standard for ground water of China (GB/T 14848-1993) with the values less than 20 mg L-1; the TN removal efficiency of 94.1% was achieved. In summary, adding peat in the underpart of the SWIS significantly decreased TN and NO3 - -N concentration in effluents and the nitrogen removal efficiency improved significantly.
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Received: 01 November 2012
Accepted:
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| Fund: The study was supported by the Key Technologies R&D Program of China during the 11th Five-Year Plan period (2008BADC4B17 and 2006 BAD16B09) and the Beijing Key Discipline Construction Project of Biomass Engineering Interdisciplinary. |
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Corresponding Authors:
HU Lin, Tel: +86-10-62733729, E-mail: hulin@cau.edu.cn
E-mail: hulin@cau.edu.cn
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| About author: CHEN Pei-zhen, Mobile: 15822916682, E-mail: chenpeizhencpz@sina.com |
Cite this article:
CHEN Pei-zhen, CUI Jian-yu, HU Lin, ZHENG Miao-zhuang, CHENG Shan-ping, HUANG Jie-wen , MU Kang-guo.
2014.
Nitrogen Removal Improvement by Adding Peat in Deep Soil of Subsurface Wastewater Infiltration System. Journal of Integrative Agriculture, 13(5): 1113-1120.
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| Beal C D, Gardner E A, Menzies N W. 2005. Process,performance, and pollution potential: A review of septictank-soil absorption systems. Australian Journal of SoilResearch, 43, 781-802Del Pozo R, Diez V, 2003. Organic matter removal incombined anaerobic-aerobic fixed-biofilm bioreactors.Water Research, 37, 3561-3568GB/T 14848-1993. 1993. Quality standard for ground water.Standardization administration of the People’s Republicof China. (in Chinese)Hu C M, Shan B Q. 2009. Phosphorus removal performanceand mechanisms of a constructed horizontal subsurfaceflow wetlands treating reclaimed water. EnvironmentalEngineering Science, 26, 1097-1106Jørgensen P R, Urup J, Helstrup T, Jensen M B, Eiland F,Vinther F P. 2004. Transport and reduction of nitrate inclayey till underneath forest and arable land. Journal ofContaminant Hydrology, 73, 207-226Kadam A M, Nemade P D, Oza G H, Shankar H S. 2009.Treatment of municipal wastewater using literate-basedconstructed soil filter. Ecological Engineering, 35, 1051-1061Knowles R. 1982. Denitrification. Microbiology Review, 46,43-70Li Y M, Peng, Y A. 2003. The pollution feature of Dianchi Lake and its control countermeasure. YunnanGeographic Environment Research, 15, 32-38 (inChinese).Li Y H, Li H B, Sun T H, Wang X. 2011a. Study on nitrogenremoval enhanced by shunt distributing wastewater in a constructed subsurface infiltration system under intermittent operation mode. Journal of Hazardous Materials, 189, 336-341Li Y H, Li H B, Sun T H, Wang X. 2011b. Effects of hydraulic loading rate on pollutants removal by a deepsubsurface wastewater infiltration system. EcologicalEngineering, 37, 1425-1429Liu L P. 2001. Analysis on eutrophication of Dianchi Lake and its control measures. Yunnan Geographic Environment Research, 20, 25-27 (in Chinese)Lloréns M, Pérez-Marín A B, Aguilar M I, Sáez J, Ortuno JF, Meseguer V F. 2011. Nitrogen transformation in twosubsurface infiltration systems at pilot scale. EcologicalEngineering, 37, 736-743Nakhla G, Farooq S. 2003. Simultaneous nitrification-denitrification in slow sand filters. Journal of HazardousMaterials, 96, 291-303Meek B D, Grass L B. 1975. Redox potential in irrigateddesert soils as an indicator of aeration status. SoilScience Society of America Journal, 39, 870-875Ministry of Environmental Protection of the People’s Republic of China. 2011. China Environmental QualityReport. China Environmental Science Press, Beijing.pp.1-91 (in Chinese)Pratt C, Shilton A, Pratt S, Haverkamp R G, Bolan N S. 2007. Phosphorus removal mechanisms in active slag filters treating waste stabilization pond effluent. Environmental Science & Technology, 41, 3296-3301Reemtsma T, Gnirss R, Jekel M. 2000. Infiltration of combined sewer overflow and tertiary municipal wastewater: an integrated laboratory and field study onnutrients and dissolved organics. Water Research, 34,1179-1186Rubin D, Clifford B, Fedler P E. 2010. Performance of a combined natural wastewater treatment system in WestTexas. Journal of Irrigation and Drainage Engineering,136, 204-209State Environmental Protection Administration. 2002.Determination Methods for Examination of Water andWaste Water. China Environmental Science Press,Beijing. pp. 54-286 (in Chinese)Ten Have P J W, Willers H C, Derikx P J I. 1994.Nitrification and denitrification in an activated sludge system for supernatant from settled sow manure withmolasses as an extra carbon source. Bioresource Technology, 47, 135-141USEPA (United States Environmental Protcction Agency).2000. Drinking Water Standards and Health Advisories.822-B-00-001 Washington, D.C. p. 12.USEPA (United States Environmental Protcction Agency).2002. On site Wastewater Treatment Systems Manual.EPA/625/R-00/008 Washington, D. C.Wang X, Sun T, Li H, Li Y, Pand J. 2010. Nitrogenremoval enhanced by shunt distributing wastewater ina subsurface wastewater infiltration system. Ecological Engineering, 36, 1433-1438Whelan B R, Barrow N J. 1984. The movement of septic tank effluent through sandy soils near Perth.I. Movementof nitrogen. Australian Journal of Soil Research, 22, 283-292WHO (World Health Organization). 2004. Guidelines for Drinking Water Quality. 3rd ed. ISBN 92 4 154638 7, 20Avenue Appia, 1211 Geneva 27, Switzerland.Ye F X, Li Y. 2009. Enhancement of nitrogen removal intowery hybrid constructed wetland to treat domestic wastewater for small rural communities. EcologicalEngineering, 35, 1043-1050Zhang J, Huang X, Liu C X, Shi H C, Hu H Y. 2005.Nitrogen removal enhanced by intermittent operation ina subsurface wastewater infiltration system. Ecological Engineering, 25, 419-428Zheng M Z, Hu L, Dong R J, Wu D M, Chen S P, Cui J Y.2011. Environmental effect of turf-soil system disposingnitrogen in biogas fertilizers. Transactions of the CSAE,27, 294-299. (in Chinese) |
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