不同C/N下BBFR-IVCW耦合工艺对微污染水体脱氮效果
Nitrogen removal of BBFR-IVCW system treating micro-polluted water under different C/N ratios
查看参考文献16篇
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文摘
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以生物质生物膜反应器(biomass bio-film reactor,BBFR)和复合垂直流人工湿地(integrated vertical-flow con-structed wetland,IVCW)构成的组合系统来处理高氮寡碳微污染地表水,考察不同C/N比对组合系统脱氮效果的影响。实验结果表明,2~#CW(2~#湿地系统)的TN出水均值低于CW1~#(1~#湿地系统),出水达到地表水环境质量Ⅳ级标准。C/N比对BBF系统的TN去除率有很大影响,而C/N比对硝酸盐氮去除率的影响并不明显。综合从碳源投加的经济成本因素和系统的反硝化效果来看,最优的C/N比为4.9。C/N=2.8时,1~#CW对NO_3~--N的去除率最高,为(71.88±15.70)%,并且与C/N>2.8的几组情况有显著性差异(F_(3,56)=21,p<0.05)。在C/N=4.1时,2~#CW对NO_3~--N的去除率为(92.83±11.26)%,与其他C/N比值下NO_3~--N的去除率差异显著(F_(3,56)=4.34,p<0.05)。C/N比的变化对出水剩余TN、NO_3~--N的影响情况比较一致。1~#CW中出水TN和NO_3~--N浓度都是随着C/N比的增大而逐步增加;而2~#CW中出水TN和NO_3~--N浓度都是随着C/N比的增大先减小,在C/N>4.1时又有所增加。BBFR系统对COD的去除高于其对TN去除的贡献率。 |
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其他语种文摘
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In this experiment,high nitrogen-low carbon micro-polluted surface water was treated by the combination of bio-film reactor (BBFR) and integrated vertical-flow constructed wetland (IVCW) and the effects of different C/ N on nitrogen removal were also investigated. Results indicated that the mean effluent concentration of TN in 2~#CW (2~# wetland system) was lower than 1#CW and met surface water environmental quality standards Grade Ⅳstandard. The C/ N ratio has great influence on TN removal of the BBFR system,but has no obvious influence on nitrate removal. The optimal C/N ratio in this experiment was 4.9 considering of the economic cost factor of carbon added and the system de-nitrification effect. At C/N =2.8,NO_3~--N removal rate of 1~#CW(71.88 ±15.70) % was significantly higher than others which their C/N ratios were greater than 2.8 (F_(3,56) = 21,p <0.05). At C/N =4.1,NO_3~- -N removal rate of 2~#CW was (92.83 ±11.26) %,which was significantly different from other C/N ratios (F_(3,56) = 4.34,p <0.05). The impact of C/N changes on TN of effluent was in accordance with that of NO_3~- -N. With the increasing of C/N in 1~#CW,the concentration of effluent TN and NO_3~- -N rose; 2~#CW showed the opposite when C/N was less than 4.1. BBFR showed higher contribution to the combined system in terms of removing COD comparing with TN. |
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来源
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环境工程学报
,2013,7(8):2818-2824 【核心库】
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关键词
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生物质生物膜反应器
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复合垂直流人工湿地
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高氮寡碳微污染地表水
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反硝化脱氮
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地址
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1.
中国科学院水生生物研究所, 武汉, 430072
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武汉理工大学资源与环境工程学院, 武汉, 430070
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语种
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中文 |
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文献类型
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研究性论文 |
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ISSN
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1673-9108 |
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学科
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行业污染、废物处理与综合利用 |
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基金
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国家自然科学基金资助项目
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湖北省自然科学基金杰出青年人才项目
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国家科技支撑计划项目
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国家水体污染控制与治理科技重大专项
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文献收藏号
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CSCD:4916403
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参考文献 共
16
共1页
|
|
1.
Greenan C M. Comparing carbon substrates for denitrification of subsurface drainage water.
J.Environ.Qual,2006,35(3):824-829
|
被引
18
次
|
|
|
|
|
2.
Walters E. Simultaneous nitrification /denitrification in a biofilm airlift suspension (BAS)reacter with biodegradable carrier material.
Water Res,2009,43(18):4461-4468
|
被引
30
次
|
|
|
|
|
3.
贺锋. 生物膜-人工湿地组合工艺处理城镇生活污水的研究.
农业环境科学学报,2009,28(8):1655-1660
|
被引
10
次
|
|
|
|
|
4.
张召基. 新型填料生物膜法处理城市污水的试验研究.
武汉理工大学学报,2007,29(7):73-76
|
被引
4
次
|
|
|
|
|
5.
国家环境保护总局.
水和废水监测分析方法(第4版),2002
|
被引
1332
次
|
|
|
|
|
6.
Kelso B H L. Dissimilatory nitrate reduction in anaerobic sediments leading to river nitrite accumulation.
Application of Environmental Microbiology,1997,63(12):4679-4685
|
被引
20
次
|
|
|
|
|
7.
葛士建. 反硝化过程中亚硝酸盐积累特性分析.
土木建筑与环境工程,2011,33(1):140-146
|
被引
32
次
|
|
|
|
|
8.
李晓晨. 城市污水高效低耗生物脱氮工艺研究.
江苏环境科技,2003,16(3):1-3
|
被引
9
次
|
|
|
|
|
9.
侯红娟. 进水COD浓度及C/N值对脱氮效果的影响.
中国给水排水,2005,21(12):19-23
|
被引
59
次
|
|
|
|
|
10.
巩有奎. 碳氮比对短程反硝化过程中N2O产生的影响.
化工学报,2011,62(7):2049-2054
|
被引
22
次
|
|
|
|
|
11.
Itokawa H. Nitrous oxide production in high-loading biological nitrogen removal process under low COD/N ratio condition.
Water Res,2001,35(3):657-664
|
被引
68
次
|
|
|
|
|
12.
Chiu Yingchih. Determination of optimal COD/nitrate ratio for biological denitrification.
International Biodeterioration & Biodegradation,2003,51(1):43-49
|
被引
21
次
|
|
|
|
|
13.
王翠. 碳氮比对A-O-N工艺脱氮效果的影响.
工业用水与废水,2008,39(4):32-35
|
被引
11
次
|
|
|
|
|
14.
Abufayed A A. Kinetics and stoichiometry of SBR/denitrification with a primary sludge carbon source.
Water Pollute.Control Fed,1986,58(5):398-405
|
被引
1
次
|
|
|
|
|
15.
田建强. 反硝化过程中亚硝酸盐积累的影响因素.
有色冶金设计与研究,2008,29(3):42-44
|
被引
13
次
|
|
|
|
|
16.
Marc-Andre Labelle. Seawater denitrification in a closed mesocosm by a submerged moving bed biofilm reactor.
Water Research,2005,39(14):3409-3417
|
被引
6
次
|
|
|
|
|
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