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玉米秸秆碳源释放特征及反硝化效果

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李乐乐, 张卫民, 何江涛, 马文洁, 刘菲. 玉米秸秆碳源释放特征及反硝化效果[J]. 环境工程学报, 2015, 9(1): 113-118. doi: 10.12030/j.cjee.20150119
引用本文: 李乐乐, 张卫民, 何江涛, 马文洁, 刘菲. 玉米秸秆碳源释放特征及反硝化效果[J]. 环境工程学报, 2015, 9(1): 113-118. doi: 10.12030/j.cjee.20150119
shu
Li Lele, Zhang Weimin, He Jiangtao, Ma Wenjie, Liu Fei. Characteristics of COD release in corn straw and its denitrification effect[J]. Chinese Journal of Environmental Engineering, 2015, 9(1): 113-118. doi: 10.12030/j.cjee.20150119
Citation: Li Lele, Zhang Weimin, He Jiangtao, Ma Wenjie, Liu Fei. Characteristics of COD release in corn straw and its denitrification effect[J]. Chinese Journal of Environmental Engineering, 2015, 9(1): 113-118. doi: 10.12030/j.cjee.20150119
shu

玉米秸秆碳源释放特征及反硝化效果

  • 1.

    东华理工大学水资源与环境工程学院, 南昌 330013

  • 2.

    中国地质大学(北京)水资源与环境学院, 北京 100083

  • 基金项目:

    国家"863"高技术研究发展计划项目(2012AA062603)

    江西省教育厅科技计划项目(GJJ13451)

  • 中图分类号: X523

Characteristics of COD release in corn straw and its denitrification effect

  • 1.

    School of Water Resources and Environmental Engineering, East China Institute of Technology, Nanchang 330013, China

  • 2.

    School of Water Resources and Environment, China University of Geosciences, Beijing 100083, China

  • Fund Project:

  • 摘要: 通过静态和动态实验研究了玉米秸秆的碳源释放规律,并考察其浸出液作为反硝化碳源对高、中、低硝酸盐氮的去除效果。实验结果表明,玉米秸秆可有效地释放碳源物质,静态实验中,固液比为1:30时单位质量碳源释放的COD最多达254 mg/g,释放速率最快为13.37 mg/(g·d);动态实验中,秸秆长度为3 cm、水力停留时间(HRT)为48 h时,单位质量碳源释放的COD最多达826.26 mg/g,COD的速率最快为26.65 mg/(g·d)。反硝化过程中pH变化不明显,在7.0~8.0范围之间浮动。以玉米秸秆浸出液为反硝化碳源对中、低浓度的硝酸盐氮具有较好的去除效果,去除率保持在80%以上,甚至高达94%,但对高浓度的硝酸盐氮去除率仅在60%~80%之间。研究表明,玉米秸秆有较强的持续供碳能力,是一种经济合适的碳源材料,采用玉米秸秆浸出液作为去除地下水中硝酸盐氮的生物反硝化碳源是可行的。
    Abstract: COD release of corn straw was studied by the static and dynamic experiments, and the corn straw lixivium was investigated as the denitrification carbon source to examine its removal efficiency on high, medium and low concentration of nitrate nitrogen.The experimental results showed that corn straw could release carbon source continuously.In the static test, COD release of unit mass of carbon was up to 254 mg/g and the highest rate of carbon release was 13.37 mg/(g·d) when solid-liquid ratio was 1:30.In the dynamic test, COD release of unit mass of carbon was up to 826.26 mg/g and the highest rate of carbon release was 26.65 mg/(g·d) when the corn straw was 3 cm in length and HRT was 48 h.During denitrification process, pH changes were not very noticeable, fluctuating between 7.0 and 8.0.The corn straw lixivium as the denitrification carbon source had better removal efficiency for medium and low concentration of nitrate nitrogen with its nitrate removal efficiency at 80%, even up to 94%.However, the removal efficiency of nitrate for high concentration of nitrate nitrogen was only between 60% and 80%.The research showed that the corn straw was a kind of economical and suitable carbon source because of its continuity of carbon supply, and it was feasible to use the corn straw lixivium as the bio-denitrification of carbon source for nitrate removal in groundwater.
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  • [1] 张维理,田哲旭,张宁,等.我国北方农用氮肥造成地下水硝酸盐污染的调查.植物营养与肥料学报,1995,1(2):80-87 Zhang W.L.,Tian Z.X.,Zhang N.,et al.Investigation of nitrate pollution in groundwater due to nitrogen fertilization in agriculture in north China.Plant Nutrition and Fertilizer Sciences,1995,1(2):80-87(in Chinese)
    [2] 刘宏斌,李志宏,张云贵,等.北京平原农区地下水硝态氮污染状况及其影响因素研究.土壤学报,2006,43(3):405-413 Liu H.B.,Li Z.H.Zhang Y.G.,et al.Nitrate contamination of groundwater and its affecting factors in rural areas of Beijing plain.Acta Pedologica Sinica,2006,43(3):405-413(in Chinese)
    [3] 赵同科,张成军,杜连凤,等.环渤海七省(市)地下水硝酸盐含量调查.农业环境科学学报,2007,26(2):779-783 Zhao T.K.,Zhang C.J.,Du L.F.,et al.Investigation on nitrate concentration in groundwater in seven provinces surrounding the Bo-hai sea.Journal of Agro-Environment Science,2007,26(02):779-783(in Chinese)
    [4] 徐春英,李玉中,李巧珍,等.山东潍坊地下水硝酸盐污染现状及δ15N溯源.生态学报,2011,31(21):6579-6587 Xu C.Y.,Li Y.Z.,Li Q.Z.,et al.Nitrate contamination and source tracing from NO3-- δ15NNin groundwater in Weifang.Shandong Province.Acta Ecologica Sinica,2011,31(21):6579-6587(in Chinese)
    [5] Huang C.,Wang H.,Chiu P.Nitrate reduction by metallic iron.Water Research,1998,32(8):2257-2264
    [6] Ovez B.Batch biological denitrification using Arundo donax,Glycyrrhiza glabra,and Gracilaria verrucosa as carbon source.Process Biochem.,2006,41(6):1289-1295
    [7] Sierra-Alvarez R.,Beristain-Cardoso R.,Salazar M.,et al.Chemolithotrophic denitrification with elemental sulfur for groundwater treatment.Water Research,2007,41(6):1253-1262
    [8] Soares M.I.M.,Abeliovich A.Wheat straw as substrate for water denitrification.Water Research,1998,32(12):3790-3794
    [9] Shrimali M.,Singh K.P.New methods of nitrate removal from water.Environment Pollution,2001,112:351-359
    [10] Gomez M.A.,Gonzalez-Lopez J.,Hontoria-Garcia E.Influence of carbon source on nitrate removal of contaminated groundwater in a denitrifying submerged filter.Journal of Hazardous Materials,2000,80(1):69-80
    [11] 胡明明,汪家权,阴娟,等.以甘油为碳源去除地下水中硝酸盐的试验研究.工程与建设,2011,25(4):503-505.
    [12] 金赞芳,陈英旭,小仓纪雄.以棉花为碳源去除地下水硝酸盐的研究.农业环境科学学报,2004,23(3):512-515 Jin Z.F.,Chen Y.X.,Ogura N.Denitrification of groundwater using cotton as energy source.Journal of Agri-Environment Science,2004,23(3):512-515(in Chinese)
    [13] 刘江霞,罗泽娇,靳孟贵,等.以麦秆作为好氧反硝化碳源的研究.环境工程,2008,26(2):94-97. Liu J.X.,Luo Z.J.,Jin M.G.,et al.Wheat straw as carbon sources of aerobic denitrification.Environmental Engineering,2008,26(2):94-97(in Chinese)
    [14] 邵留,徐祖信,金伟,等.以稻草为碳源和生物膜载体去除水中的硝酸盐.环境科学,2009,30(5):1414-1419 Shao L.,Xu Z.X.,Jin W.,et al.Nitrate removal from wastewater using rice straw as carbon source and biofilm carrier.Environmental Science,2009,30(5):1414-1419(in Chinese)
    [15] 孙雅丽,张国臣,阎中,等.以腐朽木为碳源去除废水中硝酸盐氮的研究.环境科学,2010,31(6):1494-1498 Sun Y.L.,Zhang G.C.,Yan Z.,et al.Removing nitrate-nitrogen from wastewater using rotten wood as carbon source.Environmental Science,2010,31(6):1494-1498(in Chinese)
    [16] 康爱彬,陈艳坤,霍鹏,等.农业废弃物为碳源去除硝酸盐氮研究.安徽农业科学,2012,40(6):3510-3512 Kang A.B.,Chen Y.K.,Huo P.,et al.Study on removing nitrate with agriculture waste as carbon source.Journal of Anhui Agri.Sci.,2012,40(6):3510-3512(in Chinese)
    [17] Volokite M.,Belkin S.,Abeliovich A.,et al.Biological denitrification of dringking water using newspaper.Water Research,1996,30(4):965-971
    [18] 国家环境保护总局.水和废水监测分析方法(第4版).北京:中国环境科学出版社,2002
    [19] 周贵忠,孙静,张旭,等.地下水生物反硝化碳源材料研究.环境科学与技术,2008,31(7):4-6,10 Zhou G.Z.,Sun J.,Zhang X.,et al.Carbon source study on biological denitrification in groundwater.Environmental Science & Technology,2008,31(07):4-6,10(in Chinese)
    [20] 侯红娟,王洪洋,周琪.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 Hou H.J.,Wang H.Y.,Zhou Q.Effect of influent COD concentration and C/N Ratio on denitrification.China Water & Wastewater,2005,21(12):19-23(in Chinese)
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  • 收稿日期:  2014-08-02
  • 刊出日期:  2014-12-30
李乐乐, 张卫民, 何江涛, 马文洁, 刘菲. 玉米秸秆碳源释放特征及反硝化效果[J]. 环境工程学报, 2015, 9(1): 113-118. doi: 10.12030/j.cjee.20150119
引用本文: 李乐乐, 张卫民, 何江涛, 马文洁, 刘菲. 玉米秸秆碳源释放特征及反硝化效果[J]. 环境工程学报, 2015, 9(1): 113-118. doi: 10.12030/j.cjee.20150119
shu
Li Lele, Zhang Weimin, He Jiangtao, Ma Wenjie, Liu Fei. Characteristics of COD release in corn straw and its denitrification effect[J]. Chinese Journal of Environmental Engineering, 2015, 9(1): 113-118. doi: 10.12030/j.cjee.20150119
Citation: Li Lele, Zhang Weimin, He Jiangtao, Ma Wenjie, Liu Fei. Characteristics of COD release in corn straw and its denitrification effect[J]. Chinese Journal of Environmental Engineering, 2015, 9(1): 113-118. doi: 10.12030/j.cjee.20150119
shu

玉米秸秆碳源释放特征及反硝化效果

  • 1. 东华理工大学水资源与环境工程学院, 南昌 330013
  • 2. 中国地质大学(北京)水资源与环境学院, 北京 100083
  • 收稿日期:  2014-08-02
基金项目:

国家"863"高技术研究发展计划项目(2012AA062603)

江西省教育厅科技计划项目(GJJ13451)

摘要: 通过静态和动态实验研究了玉米秸秆的碳源释放规律,并考察其浸出液作为反硝化碳源对高、中、低硝酸盐氮的去除效果。实验结果表明,玉米秸秆可有效地释放碳源物质,静态实验中,固液比为1:30时单位质量碳源释放的COD最多达254 mg/g,释放速率最快为13.37 mg/(g·d);动态实验中,秸秆长度为3 cm、水力停留时间(HRT)为48 h时,单位质量碳源释放的COD最多达826.26 mg/g,COD的速率最快为26.65 mg/(g·d)。反硝化过程中pH变化不明显,在7.0~8.0范围之间浮动。以玉米秸秆浸出液为反硝化碳源对中、低浓度的硝酸盐氮具有较好的去除效果,去除率保持在80%以上,甚至高达94%,但对高浓度的硝酸盐氮去除率仅在60%~80%之间。研究表明,玉米秸秆有较强的持续供碳能力,是一种经济合适的碳源材料,采用玉米秸秆浸出液作为去除地下水中硝酸盐氮的生物反硝化碳源是可行的。

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