两种悬浮填料A~2/O工艺处理城市污水对比小试研究
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摘要
近十几年来,厌氧-缺氧-好氧(A~2/O)工艺在我国城市污水厂中广泛应用,但该工艺仍存在一些固有问题,如自养菌与异养菌的泥龄不同、反硝化和释磷存在碳源竞争、除磷效果不稳定、脱氮除磷难于同时达到理想效果等,阻碍着A~2/O工艺的进一步发展。
随着城市管网的日益完善,部分武汉市城市污水厂面临着超负荷运行与将原有的出水从国家一级B标准提高到一级A标准的双重压力。本课题就是在这个背景下,受武汉市水务集团排水公司委托,以武汉市龙王嘴污水厂为例,进行两种悬浮填料的A~2/O工艺对比小试研究,通过向缺氧、好氧段投加悬浮填料,增加污染物去除效果,达到提高出水水质指标、提升处理水量的目的。三组对比试验分别采用1#试验装置缺氧段投加20%,好氧段投加30% K1型悬浮填料;2#试验装置缺氧段投加20%,好氧段投加30% K3型悬浮填料;3#试验装置不投加填料的方式进行。试验结果表明:
投加填料后,工艺COD、NH4+-N、TN的去除率分别为85%、94%、52%,达到国家一级A排放标准,但两种填料处理效果差别不大。在研究DO对工艺处理效果影响中发现,当缺氧段DO为0.4mg/L时,投加填料后工艺出水TN依然能保持在11mg/L左右。通过正交实验确定最佳运行条件为:好氧段DO为2~3mg/L、采用K3型填料、内回流比为100%。
根据稳定期间的实验数据,推导出K3生物池COD降解动力学方程为:缺氧段S=S0exp-0.0002577XT,好氧段S=S0exp-0.0001190XT。
In the past dozens of years, anaerobic - anoxia aerobic (A~2/O) process is widely used in wastewater treatment plants of China. However this process exist some problems, such as the sludge age in heterotrophic bacteria and heterotrophic bacteria is different, and the denitrifying and phosphorus release have the competition of carbon source ,and the removal of phosphorus is unstable, and it’s difficult to achieve at the same time removal of nitrogen and phosphorus etc.All of this hindering the development of A~2 / O process
Wuhan dragon king mouth wastewater treatment plant modified type A~2 / O process, namely, the original A~2 / O process before adding a anaerobic choose pool. With the increasingly perfect urban pipeline, now already more than when dealing with water design to the amount of water. And wastewater treatment plant is now facing DiBiao transformation of pressure. This topic is in this premise, use to biological hypoxia, aerobic pool dosing suspended packing removal efficiency, increase pollutants. Research shows that:
With the development of urban pipelines,some of the wastewater treatment plants in Wuhan are against the problem of over weight working.Their effluent need to reach the Level A from Level B.In this background ,we are authorize by Wuhan Water Bloc,and take the Longwang Zui wastewater treatment plants for example,we make the contrast study of two suspended carriers A~2/O process .We add suspended carriers in anoxia and aerobic plant to improve the removal efficiency of pollutants.Then it will incress the effluent level and water yield.We add K1 in 1# anoxia plant for 20%, aerobic plant for 30% and K3 in 2#,and none in 3#.The results shows that :
According to the experimental data, we find the degrading dynamic equation of K3 treatmet pool is : anoxia pool S=S0exp-0.0002577XT ,aerobic pool S=S0exp-0.0001190XT
随着城市管网的日益完善,部分武汉市城市污水厂面临着超负荷运行与将原有的出水从国家一级B标准提高到一级A标准的双重压力。本课题就是在这个背景下,受武汉市水务集团排水公司委托,以武汉市龙王嘴污水厂为例,进行两种悬浮填料的A~2/O工艺对比小试研究,通过向缺氧、好氧段投加悬浮填料,增加污染物去除效果,达到提高出水水质指标、提升处理水量的目的。三组对比试验分别采用1#试验装置缺氧段投加20%,好氧段投加30% K1型悬浮填料;2#试验装置缺氧段投加20%,好氧段投加30% K3型悬浮填料;3#试验装置不投加填料的方式进行。试验结果表明:
投加填料后,工艺COD、NH4+-N、TN的去除率分别为85%、94%、52%,达到国家一级A排放标准,但两种填料处理效果差别不大。在研究DO对工艺处理效果影响中发现,当缺氧段DO为0.4mg/L时,投加填料后工艺出水TN依然能保持在11mg/L左右。通过正交实验确定最佳运行条件为:好氧段DO为2~3mg/L、采用K3型填料、内回流比为100%。
根据稳定期间的实验数据,推导出K3生物池COD降解动力学方程为:缺氧段S=S0exp-0.0002577XT,好氧段S=S0exp-0.0001190XT。
In the past dozens of years, anaerobic - anoxia aerobic (A~2/O) process is widely used in wastewater treatment plants of China. However this process exist some problems, such as the sludge age in heterotrophic bacteria and heterotrophic bacteria is different, and the denitrifying and phosphorus release have the competition of carbon source ,and the removal of phosphorus is unstable, and it’s difficult to achieve at the same time removal of nitrogen and phosphorus etc.All of this hindering the development of A~2 / O process
Wuhan dragon king mouth wastewater treatment plant modified type A~2 / O process, namely, the original A~2 / O process before adding a anaerobic choose pool. With the increasingly perfect urban pipeline, now already more than when dealing with water design to the amount of water. And wastewater treatment plant is now facing DiBiao transformation of pressure. This topic is in this premise, use to biological hypoxia, aerobic pool dosing suspended packing removal efficiency, increase pollutants. Research shows that:
With the development of urban pipelines,some of the wastewater treatment plants in Wuhan are against the problem of over weight working.Their effluent need to reach the Level A from Level B.In this background ,we are authorize by Wuhan Water Bloc,and take the Longwang Zui wastewater treatment plants for example,we make the contrast study of two suspended carriers A~2/O process .We add suspended carriers in anoxia and aerobic plant to improve the removal efficiency of pollutants.Then it will incress the effluent level and water yield.We add K1 in 1# anoxia plant for 20%, aerobic plant for 30% and K3 in 2#,and none in 3#.The results shows that :
According to the experimental data, we find the degrading dynamic equation of K3 treatmet pool is : anoxia pool S=S0exp-0.0002577XT ,aerobic pool S=S0exp-0.0001190XT
引文
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[22]刘宇航,陆晓中,赵明等.PVF悬浮填料的制备及其污水处理效果的研究[J].北京化工大学学报.2006,33(1):36~40
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[26] Zhang F,Chang J,Hai J,et al.Physical,Chemical and Biological Effects of Magnetic Field and Their Application in Biodegradation of W astewater[J].Modern ChemicalIndustry.2003,23(12):47~50
[27]江帆,陈维平.新型水环境治理材料的研究进展[J].水处理技术.2006,32(2):1~4
[28]李圭白.水质工程学[M].北京:中国建筑工业出版社,2005,398~400
[29]高艳玲.悬浮载体生物流化床反应器脱氮试验研究[D].哈尔滨:哈尔滨工业大学图书馆,2007
[30]北京建筑工程学院.曝气器清水充氧性能测定[S].中华人民共和国城镇建设行业标准,CJ/T3015.2~199
[31]国家环境保护总局.水和废水监测分析方法(第四版)[M].北京:中国环境科学出版社,2002:227~279
[32]王瑞英,格日勒,武杰.麝香草酚分光光度法测定饮用水中硝酸盐氮[J].环境与健康,1999,6(1):42~43
[33]刘圣昔,李斌.麝香草酚分光光度法的应用[J].中国现代医药,2006,8(4):57~59
[34]刘雨.生物膜法污水处理技术[M].北京,中国建筑工业出版社2000,135~163
[35]于鑫,张晓健,刘晓玲等.生物滤池中微生物的SOUR活性研究[J].中国给水排水,2004,20(3):16~20
[36] Urfer D, Huck P M. Measurement of biomass activity indrinking water biofilters using a respirometric method[J].Wat Res, 2001,35(6):1469~1477
[37] Yang S, Lewandowski Z. Measurement of local masstransfer coefficient in biofilm[J]. Biotechnol Bioengr,1995,48:737~744
[38]周爱姣.木炭曝气生物滤池的特性及效能研究[D].武汉:华中科技大学图书馆,2008
[39] Satoshi Tsuneda,Joseph Auresenia,Takayuki Morise.Dynamicmodeling and simulation of a three-phase fluidized bed batch process for wastewater treatment[J]..Process Biochem.2002, 38:599~604
[40] M C M van Loosdrecht Kuba T. Phosphorus removal from wastewater by anaerobic-anoxic sequencing batch reactor[J]. Wat.Sci.Tech, 1993, 27(5-6):241~252
[41]李思敏,孟庆梅,姚宏伟.生物砂滤池去除亚硝酸盐氮的效果及影响因素分析[J].中国给水排水.2006,22(3):55~57
[42] C.Helmer,S.Kunst,S.juretschko et al.Nitrogen Loss in a Nitrifying Biofilm System[J].Water Science and Tech.1999,39(7):13~21
[43] Jung J,Sofer S.Enhancement of phenol biodegradation by south magnetic field exposure[J]. Chem.Technol.Biotechnol.,1997,70:299~303
[44]张亚雷,李咏梅译.活性污泥数学模型[M].上海:同济大学出版社, 2002
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[48] Christine Helmer,Sabine Kunst.Simultaneous Nitrification/denitrification in Anaerobic Biofilm System[J].Water Science and Technol..1998,37(4):183~187
[2] Michsel J Donkin,John M Russell.Treatment of a milkpower/butter wasterwater using the AAO activated sludge configuration[J].Water Secinece and Technol,1997,36(10):79~86
[3]郭克新,段瑞文,崔文亮等.复合式改良A2/O工艺的除磷效果[J].中国给水排水,2004,20(12):76~78
[4]蒋玖璐,励建全,何文斌.上海南桥污水厂改造工程的设计[J].中国给水排水,2006,22(8):19~22
[5]何文斌,周增炎.投料倒置A2/O工艺在南桥污水处理厂改造中的应用[J].江苏环境科技,2007,20(2):35~36
[6]郑兴灿,李激,孙永利等.无锡芦村污水处理厂一级A达标难度分析与对策措施探讨[J].给水排水,2009,35(6):24~28
[7]何伶俊.太湖流域城镇污水处理厂除磷脱氮改造技术[J].建设科技,2007,(7):110~111
[8]王翥田,叶亮,张新彦等. MBBR工艺用于无锡芦村污水处理厂的升级改造[J].中国给水排水,2010,26(2):71~73
[9]蒋岚岚,张万里,胡邦等.无锡市城北污水处理厂升级改造工艺设计[J].给水排水,2009,35(6):29~33
[10]梅从明,魏思宇,刘锋.活性砂滤池在污水处理厂提标改造中的应用[J].环境科技,2009,22(4):44~47
[11]张国昌,赵丙辰,祝征圣等.城市污水处理厂增加脱氮除磷功能的改造实践[J].青岛理工大学学报,2007,27(4):68~71
[12]朱石清,唐建国,周骅等.美国South Bermuda污水厂的升级改造[J].中国给水排水,2006,22(4):31~33
[13]代琳琳.低温条件下悬浮填料生物膜法处理生活污水的研究[D].吉林:东北师范大学图书馆,2005
[14]夏四清,高廷耀.悬浮填料浮动床石化废水处理初步研究[J].环境科学,2000,21(2):91～93
[15]夏四清,徐斌,高廷耀.悬浮填料床生物预处理黄浦江原水中试研究[J].同济大学学报,2003,23(8):977~981
[16]张志斌,郝春红,康兴生等.悬浮填料床处理城市污水的硝化效果[J].水处理技术,2009,35(4):97~98
[17]赵勇,任玉斌.悬浮填料处理市政废水的实验研究[J].污染防治技术,2008,21(2):15~17
[18]董滨,周增炎,高廷耀.投料倒置A/A/O脱氮除磷工艺中试[J].中国给水排水,2004,20(11):14~17
[19]余建恒,周少奇,曾武等. A/A/MBBR工艺处理混合污水的脱氮除磷中试研究[J].中国给水排水,2009,25(21):26~28
[20] Wang Jianlong.Wastewater Treatment by a Hybrid Bio—logical Reactor(HBR):Effect of Loading rates[J].Process Biochemistry,2000,36:297~303
[21]张景丽,幸福堂.移动床生物膜工艺特点、研究现状及发展[J].工业安全与环保,2003,29(4):13~15
[22]刘宇航,陆晓中,赵明等.PVF悬浮填料的制备及其污水处理效果的研究[J].北京化工大学学报.2006,33(1):36~40
[23]王占生,刘文军.微污染水源饮用水处理[M].北京:中国建筑工业出版社,1999:133~136
[24] Htllyka Yavuz,S.Serdar. Efects of Magnetic Field on Activity of Activated Sludge in Wastewater Treatment[J].Enzyme and Microbial Technology,2000,(26):22~27
[25] M.Meganck,D.Malnou,P.Loflohie,et al.The Importance of the Aidogenic Microflora in Biological Phosphorus Removal[J].Wat.Sci.Tech.2000,22(3):211~216
[26] Zhang F,Chang J,Hai J,et al.Physical,Chemical and Biological Effects of Magnetic Field and Their Application in Biodegradation of W astewater[J].Modern ChemicalIndustry.2003,23(12):47~50
[27]江帆,陈维平.新型水环境治理材料的研究进展[J].水处理技术.2006,32(2):1~4
[28]李圭白.水质工程学[M].北京:中国建筑工业出版社,2005,398~400
[29]高艳玲.悬浮载体生物流化床反应器脱氮试验研究[D].哈尔滨:哈尔滨工业大学图书馆,2007
[30]北京建筑工程学院.曝气器清水充氧性能测定[S].中华人民共和国城镇建设行业标准,CJ/T3015.2~199
[31]国家环境保护总局.水和废水监测分析方法(第四版)[M].北京:中国环境科学出版社,2002:227~279
[32]王瑞英,格日勒,武杰.麝香草酚分光光度法测定饮用水中硝酸盐氮[J].环境与健康,1999,6(1):42~43
[33]刘圣昔,李斌.麝香草酚分光光度法的应用[J].中国现代医药,2006,8(4):57~59
[34]刘雨.生物膜法污水处理技术[M].北京,中国建筑工业出版社2000,135~163
[35]于鑫,张晓健,刘晓玲等.生物滤池中微生物的SOUR活性研究[J].中国给水排水,2004,20(3):16~20
[36] Urfer D, Huck P M. Measurement of biomass activity indrinking water biofilters using a respirometric method[J].Wat Res, 2001,35(6):1469~1477
[37] Yang S, Lewandowski Z. Measurement of local masstransfer coefficient in biofilm[J]. Biotechnol Bioengr,1995,48:737~744
[38]周爱姣.木炭曝气生物滤池的特性及效能研究[D].武汉:华中科技大学图书馆,2008
[39] Satoshi Tsuneda,Joseph Auresenia,Takayuki Morise.Dynamicmodeling and simulation of a three-phase fluidized bed batch process for wastewater treatment[J]..Process Biochem.2002, 38:599~604
[40] M C M van Loosdrecht Kuba T. Phosphorus removal from wastewater by anaerobic-anoxic sequencing batch reactor[J]. Wat.Sci.Tech, 1993, 27(5-6):241~252
[41]李思敏,孟庆梅,姚宏伟.生物砂滤池去除亚硝酸盐氮的效果及影响因素分析[J].中国给水排水.2006,22(3):55~57
[42] C.Helmer,S.Kunst,S.juretschko et al.Nitrogen Loss in a Nitrifying Biofilm System[J].Water Science and Tech.1999,39(7):13~21
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