留言板

尊敬的读者、作者、审稿人, 关于本刊的投稿、审稿、编辑和出版的任何问题, 您可以本页添加留言。我们将尽快给您答复。谢谢您的支持!

姓名
邮箱
手机号码
标题
留言内容
验证码

不同温度下高温好氧消化工艺的溶氧特性

程洁红 戴 雅 孔 峰

程洁红, 戴 雅, 孔 峰. 不同温度下高温好氧消化工艺的溶氧特性[J]. 环境科学研究, 2014, 27(12): 1519-1524.
引用本文: 程洁红, 戴 雅, 孔 峰. 不同温度下高温好氧消化工艺的溶氧特性[J]. 环境科学研究, 2014, 27(12): 1519-1524.
CHENG Jie-hong, DAI Ya, KONG Feng. Characteristics of Dissolved Oxygen During Thermophilic Aerobic Digestion Process at Different Digestion Temperatures[J]. Research of Environmental Sciences, 2014, 27(12): 1519-1524.
Citation: CHENG Jie-hong, DAI Ya, KONG Feng. Characteristics of Dissolved Oxygen During Thermophilic Aerobic Digestion Process at Different Digestion Temperatures[J]. Research of Environmental Sciences, 2014, 27(12): 1519-1524.

不同温度下高温好氧消化工艺的溶氧特性

基金项目: 第三批高校优秀中青年教师和校长赴境外研修项目;江苏省省级环境保护科研项目(2013029);江苏省太湖水污染治理专项资金(第七期)项目(TH2013303)

Characteristics of Dissolved Oxygen During Thermophilic Aerobic Digestion Process at Different Digestion Temperatures

  • 摘要: 为探索ATAD(自热式高温好氧消化)污泥系统中ρ(DO)及其对污泥稳定化的影响,分别考察了在不同消化温度下不同成分污泥(初沉泥、二沉泥和混合泥)的Eh(氧化还原电位)、污泥溶胞效果和污泥稳定化效果. 结果表明:在消化的24 d中,尽管曝气充足,但消化前期Eh仍处于0 mV以下,并且随着消化时间的延长,Eh逐渐升至0 mV以上,说明ATAD工艺系统并不是全程好氧状态,消化前期处于兼氧或厌氧状态,后期才呈好氧状态. 65 ℃下容易使细胞破裂发生分解,污泥上清液中ρ(SCOD)(SCOD为可溶性化学需氧量)和ρ(TP)维持较高值,至消化结束时,ρ(SCOD)仍高达13 708 mg/L,ρ(TP)为126.4 mg/L,ρ(PO43+-P)为106 mg/L. 尽管消化前期Eh较低,但在15 d时VSS去除率仍超过38%,满足US EPA(美国国家环境保护局)A级污泥VSS去除率的标准. 消化初期的兼氧和厌氧状态没有减缓污泥达到稳定化,因此在合适范围内减少曝气量有利于ATAD工艺的工程化应用.

     

  • [1] LAYDEN N M,MAVINIC D C,KELLY H G,et al.Autothermal thermophilic aerobic digestion (ATAD):Part I.review of origins,design,and process operation.Journal of Environmental Engineering and Science,2007,6(6):665-678.
    [2] KELLY H G,MAVINIC D S,TRUEBLOOD B,et al.Autothermal thermophilic aerobic digestion research application and operational experience//Proceedings of the WEFTEC 2003 workshop W104 thermophilic digestion:hot update.Los Angeles CA,USA:Water Environment Federation,2003:1-12.
    [3] 宋玉栋,胡洪营.污泥自热式高温好氧消化技术研究进展.环境污染治理技术与设备,2006,7(6):13-18.SONG Yudong,HU Hongying.Research progress on sludge autothermal thermophilic aerobic digestion technology.Techniques and Equipment for Environmental Pollution Control,2006,7(6):13-18.
    [4] STATON K L,ALLEMAN J E,PRESSLEY R L,et al.2nd generation autothermal thermophilic aerobic digestion:conceptual issues and process advancements.Proceedings of the Water Environment Federation,2001,1(1):1484-1495.
    [5] 程洁红.自热式高温(微)好氧消化对城市污水污泥处理研究.上海:同济大学,2006:1-155.
    [6] 程洁红,张善发,陈华,等.自热式高温好氧消化污泥稳定化系统.中国给水排水,2005,1(7):9-13.CHENG Jiehong,ZHANG Shanfa,CHEN Hua,et al.Autothermal thermophilic aerobic digestion system for sludge stabilization.China Water and Wastewater,2005,1(7):9-13.
    [7] 张岩岩,程洁红,刘树根,等.自热式高温微好氧污泥消化中氮、磷的转化规律.中国给水排水,2010,6(17):1-3.ZHANG Yanyan,CHENG Jiehong,LIU Shugen,et al.Transformation of nitrogen and phosphorus in autothermal thermophilic microaerobic digestion.China Water and Wastewater,2010,6(17):1-3.
    [8] LIU S G,ZHU N W,LI L Y.The one-stage autothermal thermophilic aerobic digestion for sewage sludge treatment.Chemical Engineering Journal,2011,4:564-570.
    [9] US Environmental Protection Agency.Environmental regulations and technology:autothermal thermophilic aerobic digestion of municipal wastewater sludge under 40 CFR Part 503.Washington DC:Office of Research and Development,1993:32-33.
    [10] WON S G,RA C S.Biological nitrogen removal with a real-time control strategy using moving slope changes of pH-and ORP-time profiles.Water Res,2011,5(1):171-178.
    [11] FOTHERGILL S,MAVINIC D S.VFA production in thermophilic aerobic digestion of municipal sludges.Journal of Environmental Engineering-ASCE,2000,6(5):389-396.
    [12] CHANG C N,MA Y S,LO C W.Application of oxidation-reduction potential as a controlling parameter in waste activated sludge hydrolysis.Chemical Engineering Journal,2002,0(3):273-281.
    [13] 程洁红,周全法,朱南文.自热式高温好氧消化工艺的氧化还原电位研究.环境科学研究,2009,2(4):484-489.CHENG Jiehong,ZHOU Quanffa,ZHU Nanwen.Study of oxidation-reduction potential ORP on autothermal thermophilic aerobic digestion process.Research of Environmental Sciences,2009,2(4):484-489.
    [14] LIU S G,ZHU N W,NING P,et al.The one-stage autothermal thermophilic aerobic digestion for sewage sludge treatment:effects of temperature on stabilization process and sludge properties.Chemical Engineering Journal,2012,7:223-230.
    [15] 国家环境保护总局.水和废水监测分析方法.4版.北京:中国环境科学出版社,2002:210-213.
    [16] KELLY H G,MELCER H,MAVINIC D S.Autothermal thermophilic aerobic digestion of municipal sludges:a one-year,full-scale demonstration project.Water Environ Res,1993,5:849-861.
    [17] WEISSENBACHER N,LODERER C,LENZ K,et al.NOx monitoring of a simultaneous nitrifying-denitrifying (SND) activated sludge plant at different oxidation reduction potentials.Water Res,2007,1:387-405.
    [18] KIM H,HAO O J.pH and oxidation-reduction potential control strategy for optimization of nitrogen removal in an alternating aerobic-anoxic system.Water Environ Res,2001,3(1):95-102.
    [19] RUANO M V,RIBES J,SECO A,et al.Low cost-sensors as a real alternative to on-line nitrogen analysers in continuous systems.Water Science & Technology,2009,0(12):3261-3268.
    [20] XUE T,HUANG X.Releasing characteristics of phosphorus and other substances during thermal treatment of excess sludge.Journal of Environmental Sciences,2007,9:1153-1158.
    [21] BOULANGER M L.The effect of varying air supply upon supernatant quality in autoheated thermophilic aerobic digesters treating waste sludge from a biological phosphorus removal process.Canada Vancouver:University of British Columbia,1995:148-149.
    [22] LI B,IRVIN S.The comparison of alkalinity and ORP as indicators for nitrification and denitrification in a sequencing batch reactor (SBR).Biochemical Engineering Journal,2007,4:248-255.
    [23] TANWAR P,NANDY T,UKEY P,et al.Correlating on-line monitoring parameters, pH, DO and ORP with nutrient removal in an intermittent cyclic process bioreactor system.Bioresource Technology,2008,9(16):7630-7365.
    [24] VAN LOOSDRECHT M C M,HENZE M.Maintenance,endogeneous respiration,lysis,decay and predation.Water Science and Technology,1999,9(1):107-117.
    [25] LI X S,MA H Z,WANG Q H,et al.Isolation,identification of sludge-lysing strain and its utilization in thermophilic aerobic digestion for waste activated sludge.Bioresource Technology,2009,0(9):2475-2481.
    [26] PONTI C,SONNLEITNER B,FIECHTER A.Aerobic thermophilic treatment of sewage sludge at pilot plant scale:1.operating conditions.Journal of Biotechnology,1995,8(2):173-182.
    [27] MAVINIC D,MAHENDRAKER V,SHARMA A,et al.Effect of microaerophilic conditions on autothermal thermophilic aerobic digestion process.Journal of Environmental Engineering-Asce,2001,7(4):311-316.
    [28] CHENG J H,ZHANG Y Y,ZHU N W,et al.The study of sludge characteristics for one-stage autothermal thermophilic aerobic digestion process.Advanced Materials Research,2011,6/237/238:437-440.
    [29] 国家环境保护总局.GB 18918—2002 城镇污水处理厂污染物排放标准.北京:中国环境科学出版社,2003.
    [30] LIU S G,ZHU N W,LI L Y.The one-stage autothermal thermophilic aerobic digestion for sewage sludge treatment:stabilization process and mechanism.Bioresource Technology,2012,4:266-273.
  • 加载中
计量
  • 文章访问数:  1945
  • HTML全文浏览量:  16
  • PDF下载量:  1762
  • 被引次数: 0
出版历程
  • 收稿日期:  2014-01-01
  • 修回日期:  2014-05-08
  • 刊出日期:  2014-12-25

目录

    /

    返回文章
    返回