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BBFR-IVCW工艺对微污染水体的脱氮效果

孔令为 贺 锋 徐 栋 张 义 吴振斌

孔令为, 贺 锋, 徐 栋, 张 义, 吴振斌. BBFR-IVCW工艺对微污染水体的脱氮效果[J]. 环境科学研究, 2014, 27(7): 711-718.
引用本文: 孔令为, 贺 锋, 徐 栋, 张 义, 吴振斌. BBFR-IVCW工艺对微污染水体的脱氮效果[J]. 环境科学研究, 2014, 27(7): 711-718.
KONG Ling-wei, HE Feng, XU Dong, ZHANG Yi, WU Zhen-bin. Study of Nitrogen Removal from Lightly Polluted Water Treated with BBFR-IVCW Process[J]. Research of Environmental Sciences, 2014, 27(7): 711-718.
Citation: KONG Ling-wei, HE Feng, XU Dong, ZHANG Yi, WU Zhen-bin. Study of Nitrogen Removal from Lightly Polluted Water Treated with BBFR-IVCW Process[J]. Research of Environmental Sciences, 2014, 27(7): 711-718.

BBFR-IVCW工艺对微污染水体的脱氮效果

基金项目: 国家水体污染控制与治理科技重大专项(2012ZX07101-00705);国家自然科学基金项目(51178452);国家科技支撑计划项目(2012BAJ21B03-04)

Study of Nitrogen Removal from Lightly Polluted Water Treated with BBFR-IVCW Process

  • 摘要: 以BBFR(biomass bio-film reactor, 生物质生物膜反应器)和IVCW(integrated vertical-flow constructed wetland,复合垂直流人工湿地)构成小试系统,由改性水草塘、生态塘和IVCW构建中试系统,对高碳低氮水的脱氮效果及其影响因素进行了研究. 结果表明,小试系统中CW2(2#湿地)出水ρ(TN)低于CW1(1#湿地);中试系统对TN的去除率为52.49%,出水达到GB 3838—2002《地表水环境质量标准》Ⅳ级标准. C/N〔ρ(CODCr)/ρ(TN)〕对BBFR中TN去除率的影响较大,但对NO3--N去除率的影响并不明显. 从经济成本和反硝化效果来看,小试系统最优C/N为4.9,中试系统最优C/N为4.8. C/N为2.8时,CW1对NO3--N的去除率为71.88%±15.70%,与C/N>2.8时相比,差异显著(F3,6=21,P<0.05);C/N为4.1时,CW2对NO3--N的去除率为92.83%±11.26%,与其他C/N下NO3--N去除率的差异显著(F3,6=4.34,P<0.05). 小试系统中BBFR对CODCr的去除贡献率高于TN,但各单元作为一个有机整体优势互补,共同保证系统出水水质.

     

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出版历程
  • 收稿日期:  2013-10-15
  • 修回日期:  2014-03-12
  • 刊出日期:  2014-07-25

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