UBF实现同步反硝化产甲烷的启动与运行特征
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摘要
[目的]寻求同步反硝化产甲烷工艺的快速启动方法,并观察启动后同步反硝化产甲烷的稳定运行特征。[方法]利用自制的上向流厌氧污泥床-生物膜复合反应器(up-flow anaerobic sludge bed-filter,简称UBF)处理高碳氮比垃圾渗滤液,选择好氧预挂膜-厌氧驯化联合方式对反应器实施启动,最终实现同步反硝化产甲烷功能。[结果]整个启动过程历时42d,下部污泥床的污泥浓度约为9.5g·L-1,上部填料床的挂膜量达5.2g·g-1填料;高碳氮比下反应器的处理效果十分稳定,CODCr、NO3--N、NH4+-N和TN的总去除率分别为88.83%、99.95%、70.97%、82.80%,污染物降解效率较高;生物气日产量约7.2~8.9L,所含气体成分较为稳定,CH4、CO2、H2和含氮气体的平均含量比例分别为54.41%、44.09%、0.58%、0.92%。[结论]利用好氧预挂膜-厌氧驯化的启动方式,可以对UBF反应器快速实现同步反硝化产甲烷功能,并获得稳定且良好的运行效果。
[Objective]In this paper,it was the research purpose that seeking the rapid startmethod of simultaneous denitrification and methanogenesis(SDM)process and observing stable operation characteristics of SDM after start-up.[Methods]The up-flow anaerobic sludge bed-filter(UBF)was used for treating landfill leachate with high C/N,and the associated way of aerobic precoating-anaerobic acclimation was selected to implement start process,which achieved SDM function in the UBF reactor finally.[Results]The whole start-up process lasted for 42 d,the sludge concentration was about 9.5g·L-1 in the sludge bed,and the amount of biofilm was 5.2g·g-1 filler in packed bed;Under high C/N the treatment effect of UBF reactor was very stable,and total removal rates of CODCr,NO3--N,NH4+-N and TN were 88.83%,99.95%,70.97%and 82.80%respectively and substrate degrading efficiencies were higher;The daily production of biogas was about 7.2~8.9Land the composition of biogas was stable,and average content ratios of CH4、CO2、H2and nitrogen gas were 54.41%,44.09%,0.58% and 0.92% respectively.[Conclusion]Therefore,for the UBF reactor,the associated way of aerobic precoating-sludge anaerobic acclimation could be used for the fast achievement of SDM function,and the stable and good operation effect was acquired.
[Objective]In this paper,it was the research purpose that seeking the rapid startmethod of simultaneous denitrification and methanogenesis(SDM)process and observing stable operation characteristics of SDM after start-up.[Methods]The up-flow anaerobic sludge bed-filter(UBF)was used for treating landfill leachate with high C/N,and the associated way of aerobic precoating-anaerobic acclimation was selected to implement start process,which achieved SDM function in the UBF reactor finally.[Results]The whole start-up process lasted for 42 d,the sludge concentration was about 9.5g·L-1 in the sludge bed,and the amount of biofilm was 5.2g·g-1 filler in packed bed;Under high C/N the treatment effect of UBF reactor was very stable,and total removal rates of CODCr,NO3--N,NH4+-N and TN were 88.83%,99.95%,70.97%and 82.80%respectively and substrate degrading efficiencies were higher;The daily production of biogas was about 7.2~8.9Land the composition of biogas was stable,and average content ratios of CH4、CO2、H2and nitrogen gas were 54.41%,44.09%,0.58% and 0.92% respectively.[Conclusion]Therefore,for the UBF reactor,the associated way of aerobic precoating-sludge anaerobic acclimation could be used for the fast achievement of SDM function,and the stable and good operation effect was acquired.
引文
[1]代晋国,宋乾武,张玥,等.新标准下我国垃圾渗滤液处理技术的发展方向[J].环境工程技术学报,2011,1(3):270-274.
[2]高雯雯,岳秀萍.厌氧同时反硝化产甲烷的理论研究与应用[J].科学之友,2012,8(4):2-3.
[3]刁明月,谢影,彭绪亚,等.亚硝态氮对同时产甲烷反硝化工艺处理畜禽粪水的影响[J].环境工程学报,2014,8(4):1333-1338.
[4]国家环境保护总局.水和废水监测分析方法(第4版)[M].北京:中国环境科学出版社,2002:200-284.
[5]张一梦,余志晟,张洪勋.厌氧生物膜反应器用于处理废水和生产甲烷的研究进展[J].水处理技术,2014,40(11):13-17.
[6]徐恒,汪翠萍,颜锟,等.颗粒型厌氧生物膜改善高氢分压下丙酸降解抑制研究[J].中国环境科学,2016,36(5):1435-1441.
[7]陈琳,万金保,顾平.上流式厌氧生物膜-二级生物接触氧化处理猪场废水的研究[J].环境科技,2015,28(1):6-10.
[8]Nowak G,Brown G D.Characteristics of Nostocoida limicola and its activity in activated sludge suspension[J].Research Journal of the Water Pollution Control Federation,1990,62(2):137-142.
[9]Kohno T,Sei K,Mori K.Characterization of type 1851organism isolated from activated sludge samples[J].Water Science&Technology A Journal of the International Association on Water Pollution Research,2002,46(1-2):111-114.
[10]薛念涛,潘涛,纪玉琨.好氧、厌氧、兼氧污水处理技术的原理——兼谈水解酸化工艺的研发[J].环境工程,2015,33(13):43-48.
[11]易冬蕊,刘敏艳,高天然,等.微生物污水处理技术的应用[J].石油化工腐蚀与防护,2013,30(5):61-64.
[12]谭雪,石磊,马中,等.基于污水处理厂运营成本的污水处理费制度分析——基于全国227个污水处理厂样本估算[J].中国环境科学,2015,35(12):3833-3840.
[13]冉春秋,王晓雯,邹学军,等.活性炭颗粒载体厌氧同步去除COD和含氮污染物[J].工业水处理,2014,34(11):32-36.
[14]李志健,迟金娟.厌氧颗粒污泥研究进展[J].工业水处理,2011,31(2):17-20.
[15]冉春秋,葛辉,赵不凋.不同C/N对活性炭颗粒填料厌氧同步消化反硝化的影响[J].大连民族学院学报,2015,17(3):211-214.
[16]冉春秋,任小米,王冰,等.碳氮比对协同去除COD和含氮污染物的影响[J].武汉理工大学学报,2016,38(1):76-79.
[2]高雯雯,岳秀萍.厌氧同时反硝化产甲烷的理论研究与应用[J].科学之友,2012,8(4):2-3.
[3]刁明月,谢影,彭绪亚,等.亚硝态氮对同时产甲烷反硝化工艺处理畜禽粪水的影响[J].环境工程学报,2014,8(4):1333-1338.
[4]国家环境保护总局.水和废水监测分析方法(第4版)[M].北京:中国环境科学出版社,2002:200-284.
[5]张一梦,余志晟,张洪勋.厌氧生物膜反应器用于处理废水和生产甲烷的研究进展[J].水处理技术,2014,40(11):13-17.
[6]徐恒,汪翠萍,颜锟,等.颗粒型厌氧生物膜改善高氢分压下丙酸降解抑制研究[J].中国环境科学,2016,36(5):1435-1441.
[7]陈琳,万金保,顾平.上流式厌氧生物膜-二级生物接触氧化处理猪场废水的研究[J].环境科技,2015,28(1):6-10.
[8]Nowak G,Brown G D.Characteristics of Nostocoida limicola and its activity in activated sludge suspension[J].Research Journal of the Water Pollution Control Federation,1990,62(2):137-142.
[9]Kohno T,Sei K,Mori K.Characterization of type 1851organism isolated from activated sludge samples[J].Water Science&Technology A Journal of the International Association on Water Pollution Research,2002,46(1-2):111-114.
[10]薛念涛,潘涛,纪玉琨.好氧、厌氧、兼氧污水处理技术的原理——兼谈水解酸化工艺的研发[J].环境工程,2015,33(13):43-48.
[11]易冬蕊,刘敏艳,高天然,等.微生物污水处理技术的应用[J].石油化工腐蚀与防护,2013,30(5):61-64.
[12]谭雪,石磊,马中,等.基于污水处理厂运营成本的污水处理费制度分析——基于全国227个污水处理厂样本估算[J].中国环境科学,2015,35(12):3833-3840.
[13]冉春秋,王晓雯,邹学军,等.活性炭颗粒载体厌氧同步去除COD和含氮污染物[J].工业水处理,2014,34(11):32-36.
[14]李志健,迟金娟.厌氧颗粒污泥研究进展[J].工业水处理,2011,31(2):17-20.
[15]冉春秋,葛辉,赵不凋.不同C/N对活性炭颗粒填料厌氧同步消化反硝化的影响[J].大连民族学院学报,2015,17(3):211-214.
[16]冉春秋,任小米,王冰,等.碳氮比对协同去除COD和含氮污染物的影响[J].武汉理工大学学报,2016,38(1):76-79.