以玉米芯为外加碳源的SBBR脱氮特性
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摘要
针对低碳氮比生活污水总氮去除效果不佳的问题,以玉米芯作为SBBR生物载体和外加碳源,开展同步硝化反硝化脱氮特性研究。主要考察了碳源投加比及曝气时间对脱氮效果的影响。在最佳碳源投加比为1∶80、最适曝气时间为5.5 h时,出水COD、TN、NH_3-N分别为48.95、6.25和1.01 mg/L,满足城镇污水厂一级A排放标准。研究表明,采用玉米芯为外加碳源,可实现固体碳源释碳与反硝化需碳的平衡,有效增强低碳氮比污水的脱氮效果,同时能够保证出水COD满足排放标准。
The characteristics of nitrogen removal in sequencing batch bio-film reactor( SBBR) using corncob as carbon source and biomass carrier treating simulated low COD / N ratio wastewater was studied. This paper focused on the feasibility of utilizing corncob as carbon source,and the effects of solid carbon dosing ratio and aeration time on simultaneous nitrification and denitrification were investigated. Under the conditions of the optimal carbon dosing ratio of 1∶ 80 and aeration time of 5. 5 h,the COD,TN and ammonia of the effluent degraded to 48. 95,6. 25 and 1. 01 mg / L,respectively,meeting the highest requirement of China urban sewage discharge standards. It was demonstrated that SBBR enhanced by solid carbon could not only improve the nitrogen removal efficiency of low C / N ratio wastewater,but also achieve a balance of carbon releasing and carbon requirement of denitrification without increasing the burden of COD degration.
The characteristics of nitrogen removal in sequencing batch bio-film reactor( SBBR) using corncob as carbon source and biomass carrier treating simulated low COD / N ratio wastewater was studied. This paper focused on the feasibility of utilizing corncob as carbon source,and the effects of solid carbon dosing ratio and aeration time on simultaneous nitrification and denitrification were investigated. Under the conditions of the optimal carbon dosing ratio of 1∶ 80 and aeration time of 5. 5 h,the COD,TN and ammonia of the effluent degraded to 48. 95,6. 25 and 1. 01 mg / L,respectively,meeting the highest requirement of China urban sewage discharge standards. It was demonstrated that SBBR enhanced by solid carbon could not only improve the nitrogen removal efficiency of low C / N ratio wastewater,but also achieve a balance of carbon releasing and carbon requirement of denitrification without increasing the burden of COD degration.
引文
[1]柯国华,汪苹,杨志.好氧反硝化脱氮气态中间产物的研究分析.环境科学与技术,2006,29(7):45-46Ke Guohua,Wang Ping,Yang Zhi.Analysis of intermediates during aerobic denitrification.Environmental Science&Technology,2006,29(7):45-46(in Chinese)
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[3]Wu Weizhong,Yang Feifei,Yang Luhua.Biological denitrification with a novel biodegradable polymer as carbon source and biofilm carrier.Bioresource Technology,2012,118:136-140
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[10]李彭,唐蕾,左剑恶,等.以PHAs为固体碳源的城镇二级出水深度脱氮研究.中国环境科学,2014,34(2):331-336Li Peng,Tang Lei,Zuo Jian’e,et al.Tertiary nitrogen removal of the municipal secondary effluent using PHAs as solid carbon sources.China Environmental Science,2014,34(2):331-336(in Chinese)
[11]杨敏,孙永利,郑兴灿,等.不同外加碳源的反硝化效能与技术经济性分析.给水排水,2010,36(11):125-128Yang Min,Sun Yongli,Zheng Xingcan,et al.Denitrification efficiency and techno-economic analysis of different exotic additional carbon source.Water&Wastewater Engineering,2010,36(11):125-128(in Chinese)
[12]Aslan S.,TüRkman N A.Simultaneous biological removal of endosulfan(α+β)and nitrates from drinking waters using wheat straw as substrate.Environment International,2004,30(4):449-455
[13]刘江霞,罗泽娇,靳孟贵,等.以麦秆作为好氧反硝化碳源的研究.环境工程,2008,26(2):94-96Liu Jiangxia,Luo Zejiao,Jin Menggui,et al.Wheat straw as carbon sources of aerobic denitrification.Environmental Engineering,2008,26(2):94-96(in Chinese)
[14]裴廷权,杨小毛,刘欢,等.不同缓释碳源对低碳氮比污水反硝化的影响.工业水处理,2013,33(5):40-43Pei Tingquan,Yang Xiaomao,Liu Huan,et al.Effect of different sustained-release carbon source on the denitrification of low C/N wastewater.Industrial Water Treatment,2013,33(5):40-43(in Chinese)
[15]李斌,郝瑞霞.固体纤维素类废物作为反硝化碳源滤料的比选.环境科学,2013,34(4):1428-1434Li Bin,Hao Ruixia.Comparison and optimization of cellulose carbon source for denitrification filter.Environmental Science,2013,34(4):1428-1434(in Chinese)
[16]邵留,徐祖信,金伟,等.农业废物反硝化固体碳源的优选.中国环境科学,2011,31(5):748-754Shao Liu,Xu Zuxin,Jin Wei,et al.Optimization of solid carbon source for denitrification of agriculture wastes.China Environmental Science,2011,31(5):748-754(in Chinese)
[17]Ding Aizhong,Fu Jiamo,Sheng Guoying.Experimental evidence for aerobic bio-denitrification.Chinese Science Bulletin,2000,45(S1):86-89
[18]Patureau D.,Helloin E.,Rrstrian E.,et al.Combined phosphate and nitrogen removal in a sequencing batch reactor using the aerobic denitrifier,Microvirgula aerodenitrificans.Water Research,2000,35(1):189-197
[19]张小玲,邓杨帆,冯继贵,等.基于SBBR的单级自养脱氮快速启动.环境工程学报,2015,9(7):3252-3258Zhang Xiaoling,Deng Yangfan,Feng Jigui,et al.Fast start-up of completely autotrophic nitrogen removal over nitrite in SBBR.Chinese Journal of Environmental Engineering,2015,9(7):3252-3258(in Chinese)
[20]郭冬艳,李多松,孙开蓓,等.同步硝化反硝化生物脱氮技术.安全与环境工程,2009,16(3):41-44Guo Dongyan,Li Duosong,Sun Kaibei,et al.Simultaneous nitrification and denitrification Technology.Safety and Environmental Engineering,2009,16(3):41-44(in Chinese)
[21]马放,李平,张晓琦,等.SBR反应器同步硝化反硝化影响因素及其特性.哈尔滨工业大学学报,2011,43(8):55-60Ma Fang,Li Ping,Zhang Xiaoqi,et al.The influencing factors and the characteristics of simultaneous nitrificationdenitrification in SBR.Journal of Harbin Institute of Technology,2011,43(8):55-60(in Chinese)
[22]万金保,王敬斌.同步硝化反硝化脱氮机理分析及影响因素研究.江西科学,2008,26(2):345-350Wan Jinbao,Wang Jingbin.The synchro nitrification opposes a nitrification coming off nitrogen mechanism analyses and affects a factor to study.Jiangxi Science,2008,26(2):345-350(in Chinese)
[23]彭赵旭,彭永臻,左金龙,等.同步硝化反硝化的影响因素研究.给水排水,2009,35(5):167-171Peng Zhaoxu,Peng Yongzhen,Zuo Jinlong,et al.Study of influence factors on simultaneous nitrification and denitrification.Water&Wastewater Engineering,2009,35(5):167-171(in Chinese)
[24]朱春兰,邓仕槐,肖鸿,等.新型SBBR处理畜禽废水脱氮实验研究.环境工程学报,2010,4(7):1525-1528Zhu Chunlan,Deng Shihuai,Xiao Hong,et al.Study on nitrogen removal of livestock wastewater in new-style SBBR.Chinese Journal of Environmental Engineering,2010,4(7):1525-1528(in Chinese)
[25]荣宏伟,张朝升,彭永臻,等.DO对SBBR工艺同步硝化反硝化的影响研究.环境科学与工程,2009,32(8):16-19Rong Hongwei,Zhang Chaosheng,Peng Yongzhen,et al.Effect of DO on simultaneous nitrification and denitrification in sequencing batch biofilm reactor.Environmental Science&Technology,2009,32(8):16-19(in Chinese)
[26]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.环境科学学报,2006,26(5):728-733Li Jun,Peng Yongzhen,Gu Guowei,et al.Factors affecting simultaneous nitrification and denitrification in a SBBR treating domestic wastewater.Acta Scientiae Circumstantiae,2006,26(5):728-733(in Chinese)
[2]Ryu H.D.,Lee S.I.Comparison of 4-stage biological aerated filter(BAF)with MLE process in nitrogen removal from low carbon-to-nitrogen wastewater.Environmental Engineering Science,2009,26(1):163-170
[3]Wu Weizhong,Yang Feifei,Yang Luhua.Biological denitrification with a novel biodegradable polymer as carbon source and biofilm carrier.Bioresource Technology,2012,118:136-140
[4]Srinandan C.S.,D’Souza G.,Srivastava N.,et al.Carbon sources influence the nitrate removal activity,community structure and biofilm architecture.Bioresource Technology,2012,117:292-299
[5]马勇,彭永臻,王淑莹.不同外碳源对污泥反硝化特性的影响.北京工业大学学报,2009,35(6):820-824Ma Yong,Peng Yongzhen,Wang Shuying.Sludge denitrification characteristics with different external carbon source.Journal of Beijing University of Technology,2009,35(6):820-824(in Chinese)
[6]王淑莹,殷芳芳,侯鸿勋,等.以甲醇作为外碳源的生物反硝化.北京工业大学学报,2009,35(11):1521-1526Wang Shuying,Yin Fangfang,Hou Hongxun,et al.Biological denitrification with methanol as external carbon source.Journal of Beijing University of Technology,2009,35(11):1521-1526(in Chinese)
[7]Werner M.,Kayser R.Denitrification with biogas as external carbon source.Water Science and Technology,1991,23(4-6):701-708
[8]王旭明,从二丁,罗文龙,等.固体碳源用于异养反硝化去除地下水中的硝酸盐.中国科学B辑:化学,2008,38(9):824-828Wang Xuming,Cong Erding,Luo Wenlong,et al.Removal of nitrate from groundwater by heterotrophic denitrification using the solid carbon.Science in China Chemistry,2009,52(2):236-240
[9]吉方英,陈思,杨肃博,等.利用可生物降解固体碳源进行反硝化的研究.中国给水排水,2013,29(19):14-17Ji Fangying,Chen Si,Yang Subo,et al.Denitrification by biodegradable solid carbon source.China Water&Wastewater,2013,29(19):14-17(in Chinese)
[10]李彭,唐蕾,左剑恶,等.以PHAs为固体碳源的城镇二级出水深度脱氮研究.中国环境科学,2014,34(2):331-336Li Peng,Tang Lei,Zuo Jian’e,et al.Tertiary nitrogen removal of the municipal secondary effluent using PHAs as solid carbon sources.China Environmental Science,2014,34(2):331-336(in Chinese)
[11]杨敏,孙永利,郑兴灿,等.不同外加碳源的反硝化效能与技术经济性分析.给水排水,2010,36(11):125-128Yang Min,Sun Yongli,Zheng Xingcan,et al.Denitrification efficiency and techno-economic analysis of different exotic additional carbon source.Water&Wastewater Engineering,2010,36(11):125-128(in Chinese)
[12]Aslan S.,TüRkman N A.Simultaneous biological removal of endosulfan(α+β)and nitrates from drinking waters using wheat straw as substrate.Environment International,2004,30(4):449-455
[13]刘江霞,罗泽娇,靳孟贵,等.以麦秆作为好氧反硝化碳源的研究.环境工程,2008,26(2):94-96Liu Jiangxia,Luo Zejiao,Jin Menggui,et al.Wheat straw as carbon sources of aerobic denitrification.Environmental Engineering,2008,26(2):94-96(in Chinese)
[14]裴廷权,杨小毛,刘欢,等.不同缓释碳源对低碳氮比污水反硝化的影响.工业水处理,2013,33(5):40-43Pei Tingquan,Yang Xiaomao,Liu Huan,et al.Effect of different sustained-release carbon source on the denitrification of low C/N wastewater.Industrial Water Treatment,2013,33(5):40-43(in Chinese)
[15]李斌,郝瑞霞.固体纤维素类废物作为反硝化碳源滤料的比选.环境科学,2013,34(4):1428-1434Li Bin,Hao Ruixia.Comparison and optimization of cellulose carbon source for denitrification filter.Environmental Science,2013,34(4):1428-1434(in Chinese)
[16]邵留,徐祖信,金伟,等.农业废物反硝化固体碳源的优选.中国环境科学,2011,31(5):748-754Shao Liu,Xu Zuxin,Jin Wei,et al.Optimization of solid carbon source for denitrification of agriculture wastes.China Environmental Science,2011,31(5):748-754(in Chinese)
[17]Ding Aizhong,Fu Jiamo,Sheng Guoying.Experimental evidence for aerobic bio-denitrification.Chinese Science Bulletin,2000,45(S1):86-89
[18]Patureau D.,Helloin E.,Rrstrian E.,et al.Combined phosphate and nitrogen removal in a sequencing batch reactor using the aerobic denitrifier,Microvirgula aerodenitrificans.Water Research,2000,35(1):189-197
[19]张小玲,邓杨帆,冯继贵,等.基于SBBR的单级自养脱氮快速启动.环境工程学报,2015,9(7):3252-3258Zhang Xiaoling,Deng Yangfan,Feng Jigui,et al.Fast start-up of completely autotrophic nitrogen removal over nitrite in SBBR.Chinese Journal of Environmental Engineering,2015,9(7):3252-3258(in Chinese)
[20]郭冬艳,李多松,孙开蓓,等.同步硝化反硝化生物脱氮技术.安全与环境工程,2009,16(3):41-44Guo Dongyan,Li Duosong,Sun Kaibei,et al.Simultaneous nitrification and denitrification Technology.Safety and Environmental Engineering,2009,16(3):41-44(in Chinese)
[21]马放,李平,张晓琦,等.SBR反应器同步硝化反硝化影响因素及其特性.哈尔滨工业大学学报,2011,43(8):55-60Ma Fang,Li Ping,Zhang Xiaoqi,et al.The influencing factors and the characteristics of simultaneous nitrificationdenitrification in SBR.Journal of Harbin Institute of Technology,2011,43(8):55-60(in Chinese)
[22]万金保,王敬斌.同步硝化反硝化脱氮机理分析及影响因素研究.江西科学,2008,26(2):345-350Wan Jinbao,Wang Jingbin.The synchro nitrification opposes a nitrification coming off nitrogen mechanism analyses and affects a factor to study.Jiangxi Science,2008,26(2):345-350(in Chinese)
[23]彭赵旭,彭永臻,左金龙,等.同步硝化反硝化的影响因素研究.给水排水,2009,35(5):167-171Peng Zhaoxu,Peng Yongzhen,Zuo Jinlong,et al.Study of influence factors on simultaneous nitrification and denitrification.Water&Wastewater Engineering,2009,35(5):167-171(in Chinese)
[24]朱春兰,邓仕槐,肖鸿,等.新型SBBR处理畜禽废水脱氮实验研究.环境工程学报,2010,4(7):1525-1528Zhu Chunlan,Deng Shihuai,Xiao Hong,et al.Study on nitrogen removal of livestock wastewater in new-style SBBR.Chinese Journal of Environmental Engineering,2010,4(7):1525-1528(in Chinese)
[25]荣宏伟,张朝升,彭永臻,等.DO对SBBR工艺同步硝化反硝化的影响研究.环境科学与工程,2009,32(8):16-19Rong Hongwei,Zhang Chaosheng,Peng Yongzhen,et al.Effect of DO on simultaneous nitrification and denitrification in sequencing batch biofilm reactor.Environmental Science&Technology,2009,32(8):16-19(in Chinese)
[26]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.环境科学学报,2006,26(5):728-733Li Jun,Peng Yongzhen,Gu Guowei,et al.Factors affecting simultaneous nitrification and denitrification in a SBBR treating domestic wastewater.Acta Scientiae Circumstantiae,2006,26(5):728-733(in Chinese)