SBBR反应器SND脱氮的影响因素分析及响应曲面优化
作者:
基金项目:

国家科技重大专项(2011ZX07101-003,2011ZX07301-002);江苏省科研课题(BA2012055)。


Analysis on influencing factors of nitrogen removal via SND and optimization by RSM in SBBR
Author:
  • 摘要
  • | |
  • 访问统计
  • |
  • 参考文献 [21]
  • |
  • 相似文献 [20]
  • | | |
  • 文章评论
    摘要:

    采用活性炭涂层改性悬浮填料,在连续曝气的条件下,考察了SBBR反应器脱氮性能。结果表明,SBBR反应器表现出良好的同步硝化反硝化(SND)脱氮性能,对NH3-N和TN的去除率分别为80.7%和63.1%。典型周期内反应器同步硝化反硝化率可达82.7%。单因素试验发现,脱氮率随着曝气时间t的增加而增加,随着溶解氧质量浓度ρDO和填料投加量δ增大而先增大后减小。同时,以溶解氧质量浓度、填料投加量和曝气时间为考察因素,脱氮率为评价指标,采用响应曲面法建立了二次多元回归模型。通过模型求解得出最佳工况:溶解氧浓度为2.37 mg/L,填料投加量为40.10%,曝气时间为5.17 h,此时,脱氮率得到最大值为69.28%。验证试验表明,回归模型的预测值与实测值偏差率为1.57%。

    Abstract:

    Nitrogen removal performance of SBBR reactor was investigated under the condition of continuous aeration with suspended packing by activated carbon coating modification. The results indicate that SBBR presents a good simultaneous nitrification and denitrification (SND) performance with the removal rates of NH3-N and TN at 80.7% and 63.1% respectively. During a typical cycle, SND rate can reach 72.8%. Single factor experiments show that nitrogen removal rate increases as the increase of aeration time and it increases first and then decreases as the increase of dissolved oxygen concentration and packing dosing quantity. Secondary multivariate regression model is established with using response surface methodology and taking dissolved oxygen concentration, packing dosing quantity and aeration time as inspective factors and nitrogen removal rate as evaluation index. 69.28% nitrogen removal rate as the maximum value is obtained under optimal working conditions according to the model calculation as follows:dissolved oxygen concentration of 2.37 mg/L, packing dosing quantity of 40.10%, aeration time of 5.17 h. Verification test show that the deviation rate between predicted values and measured values is 1.57%.

    参考文献
    [1] Gonzales S,Wilderer P A.Phosphate removal in a biofilm reactor[J].Water Science & Technology,1990,23(7/8/9):1405-1415.
    [2] 王东海,文湘华,钱易.处理难降解有机物的新型SBR反应器的发展[J].环境科学进展,1999,7(6):38-44. WANG Donghai,WEN Xianghua,QIAN Yi.Advancement of new type SBR for refractory organic compound treatment[J].Chinese Journal of Environmental Engineering,1999,7(6):38-44.(in Chinese)
    [3] Tan C,Ma F,Qiu S.Impact of carbon to nitrogen ratio on nitrogen removal at a low oxygen concentration in a sequencing batch biofilm reactor[J].Water Science & Technology,2013,67(3):612-618.
    [4] Di laconi C,Lopez A,Ramadori R,et al.Combined chemical and biological degradation of tannery wastewater by a periodic submerged filter (SBBR)[J].Water Research,2002,36(9):2205-2214.
    [5] Chang C N,Chen H R,Huang C H,et al.Using sequencing batch biofilm reactor (SBBR) to treat ABS wastewater[J].Water Science and Technology,2000,41(4/5):433-440.
    [6] Ding D H,Feng C P,Jin Y X,et al.Domestic sewage treatment in a sequencing batch biofilm reactor (SBBR) with an intelligent controlling system[J].Desalination,2011,276(1/2/3):260-265.
    [7] 李志刚,周健,张法国,等.SBBR处理老龄化垃圾渗滤液的自养脱氮效能[J].中国给水排水,2010,26(17):27-30. LI Zhigang,ZHOU Jian,ZHANG Faguo,et al.Study on autotrophic nitrogen removal efficiency of SBBR in treatment of aged landfill leachate[J].China Water & Wastewater,2010,26(17):27-30.(in Chinese)
    [8] 许秀红,金蒙蒙,李宇.SBBR反应器对低C/N城市污水的脱氮效能研究[J].沈阳建筑大学学报(自然科学版),2013,29(5):937-943. XU Xiuhong,JIN Mengmeng,LI Yu.Study of low C/N domestic sewage in nitrogen removal effection by a sequencing batch biofilm reactor[J].Journal of Shenyang Jianzhu University (Natural Science),2013,29(5):937-943.(in Chinese)
    [9] 李军,彭永臻,顾国维,等.SBBR同步硝化反硝化处理生活污水的影响因素[J].环境科学学报,2006,26(5):728-733. LI Jun,PENG Yongzhen,GU Guowei,et al.Factors affecting simultaneous nitrification and denitrification in a SBBR treating domestic wastewater[J].Acta Scientiae Circumstantiae,2006,26(5):728-733.(in Chinese)
    [10] 张立秋,韦朝海,张可方,等.常温下SBBR反应器中亚硝酸型同步硝化反硝化的实现[J].环境工程,2009,27(1):40-43,65. ZHANG Liqiu,WEI Chaohai,ZHANG Kefang,et al.Realization for simultaneous nitrification denitrification via nitrite in sequencing biofilm batch reactor at normal temperature[J].Environmental Engineering,2009,27(1):40-43,65.(in Chinese)
    [11] 张小玲,陈莹,邱静,等.曝气量及COD浓度对SBBR同步硝化反硝化效能的影响[J].环境科学与技术,2012,35(9):129-133. ZHANG Xiaoling,CHEN Ying,QIU Jing,et al.Simultaneous nitrification and denitrification in SBBR:its performances affected by aeration amount and COD concentration[J].Environmental Science & Technology,2012,35(9):129-133.(in Chinese)
    [12] 徐影,仇天雷,韩梅琳,等.响应曲面法优化固相反硝化的工艺条件[J].环境工程学报,2013,7(2):489-493. XU Ying,QIU Tianlei,HAN Meilin,et al.Optimization of solid-phase denitrification process using response surface methodology[J].Chinese Journal of Environmental Engineering,2013,7(2):489-493.(in Chinese)
    [13] Tong J,Chen Y G.Recovery of nitrogen and phosphorus from alkaline fermentation liquid of waste activated sludge and application of the fermentation liquid to promote biological municipal wastewater treatment[J].Water Research,2009,43(12):2969-2976.
    [14] Rodgers M,Zhan X M,Burke M D.Nutrient removal in a sequencing batch biofilm reactor (SBBR) using a vertically moving biofilm system[J].Environ Technol,2004,25(2):211-218.
    [15] Matos M,Alves C,Campos J L,et al. Sequencing batch biofilm reactor:from support design to reactor operation[J].Environ Technol,2011,32(9/10):1121-1129.
    [16] 何争光,张珂,谢丽清.SBBR工艺悬浮填料填充率的优化[J].中国给水排水,2012,28(15):28-30. HE Zhengguang,ZHANG Ke,XIE Liqing.Optimization of suspended carrier filling ratio in sequencing batch biofilm reactor[J].China Water & Wastewater,2012,28(15):1121-1129.(in Chinese)
    [17] 国家环境保护总局.水和废水监测分析方法[M].4版.北京:中国环境科学出版社,2002. Water and waste water monitoring and analyzing method[M].4th edition.Beijing:China Environmental Science Press,2002.(in Chinese)
    [18] Third K A,Burnett N,Cord-Ruwisch R,et al.Simultaneous nitrification and denitri- fication using stored substrate (PHB) as the electron donor in an SBR[J].Biotechnology & Bioengineering,2003,83(6):706-720.
    [19] 彭永臻,孙洪伟,杨庆.短程硝化的生化机理及其动力学[J].环境科学学报,2008,28(5):817-824. PENG Yongzhen,SUN Hongwei,YANG Qing.The biochemical reaction mechanism and kinetics of partial nitrification[J].Acta Scientiae Circumstantiae,2008,28(5):817-824.(in Chinese)
    [20] Pochana K,Keller J.Study of factors affecting simultaneous nitrification and denitrification (SND)[J].Wat Sci Tech,1999,39:61-68.
    [21] 王淑莹,孙洪伟,杨庆,等.传统生物脱氮反硝化过程的生化机理及动力学[J].应用与环境生物学报,2008,14(5):732-736. WANG Shuying,SUN Hongwei,YANG Qing,et al.Biochemical reaction mechanism and kinetics of denitrification[J].Chinese Journal of Applied & Environmental Biology,2008,14(5):732-736.(in Chinese)
    引证文献
    网友评论
    网友评论
    分享到微博
    发 布
引用本文

蔡健明,操家顺,周碧波. SBBR反应器SND脱氮的影响因素分析及响应曲面优化[J].重庆大学学报,2016,39(2):34-43.

复制
分享
文章指标
  • 点击次数:1186
  • 下载次数: 992
  • HTML阅读次数: 473
  • 引用次数: 0
历史
  • 收稿日期:2015-07-09
  • 在线发布日期: 2016-05-16
文章二维码