玉米芯固体碳源生物膜SND处理低碳源污水
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摘要
采用玉米芯填料固体碳源生物膜反应器,应用同步硝化反硝化(SND)技术处理低碳氮比城市污水,考察了固体碳源生物膜反应器的SND启动及不同溶解氧(DO)、进水p H值对系统脱氮效果的影响。结果表明,系统运行23 d后TN平均去除率达到89.11%,反应器实现了SND启动,在DO为4.0 mg/L,进水pH为8.0的条件下,脱氮效果最佳,总氮(TN)平均去除率可达91.98%。可见玉米芯是一种较好的固体碳源生物膜反应器填料,在适当的反应条件下,可以很好地实现SND,适合低碳氮比城市污水的脱氮处理。
A solid carbon source biofilm reactor with corncob as filler was used to treat low C/N ratio wastewater by simultaneous nitrification and denitrification(SND) technology. The effects of different dissolved oxygen(DO), the impact of influent pH on the system of nitrogen removal were investigated. The results showed that the system started membrane hanging after 23 days. Under the optimum conditions of DO of 4.0 mg/L and influent pH of 8.0, the denitrification effect will be the best, with average total nitrogen(TN) removal rate up to 91.98%, which indicated that corncob is a good solid carbon source biofilm reactor packing, under the appropriate reaction conditions, SND can be well achieved, suitable for low carbon and nitrogen denitrification in sewage treatment.
A solid carbon source biofilm reactor with corncob as filler was used to treat low C/N ratio wastewater by simultaneous nitrification and denitrification(SND) technology. The effects of different dissolved oxygen(DO), the impact of influent pH on the system of nitrogen removal were investigated. The results showed that the system started membrane hanging after 23 days. Under the optimum conditions of DO of 4.0 mg/L and influent pH of 8.0, the denitrification effect will be the best, with average total nitrogen(TN) removal rate up to 91.98%, which indicated that corncob is a good solid carbon source biofilm reactor packing, under the appropriate reaction conditions, SND can be well achieved, suitable for low carbon and nitrogen denitrification in sewage treatment.
引文
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[18]贾艳萍,姜成,张兰河,等.升流式曝气生物滤池运行特性及动力学[J].化工进展, 2017(10):3891-3903.Jia Yanping, Jiang Cheng, Zhang Lanhe, et al. Operation characteristics and kinetics of upflow biological aerated filter[J]. Chemical Industry Progress, 2017(10):3891-3903.
[19]王靖雯,徐洪斌,马浩亮,等.曝气生物滤池脱氮技术的研究进展[J].工业水处理, 2014(6):1-5.Wang Jingwen, Xu Hongbin, Ma Haoliang, et al. Advances in denitrification technology of biological aerated filter[J].Industrial Water Treatment, 2014(6):1-5.
[20]Hasan H A, Abdullah S R S, Kamarudin S K, et al. Response surface methodology for optimization of simultaneous COD, NH4+–N and Mn2+, removal from drinking water by biological aerated filter[J]. Desalination, 2011, 275(1/2/3):50-61.
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[22]Ren H, Hu H, Geng J, et al. Denitrification Biofilter Device and Method for Treating Wastewater, US20150108066[P].2015.
[2]胡进,朱雷,余黎明,等.废弃瓷砖再生滤料在曝气生物滤池中的挂膜启动[J].水处理技术, 2016(3):121-124.Hu Jin, Zhu Lei, Yu Liming, et al. Starting of hanging membrane regeneration filter in aerated biological filter[J]. Process of Water Treatment, 2016(3):121-124.
[3]丁绍兰,封香香,谢林花.沸石-核桃壳曝气生物滤池去除废水中氨氮的研究[J].工业水处理, 2017, 37(5):45-49.Ding Shaolan, Feng Xiangxiang, Xie Linhua. Study on removal of ammonia nitrogen from wastewater by zeolitewalnut shell aerated biological filter[J]. Journal of Industrial Water Treatment, 2017, 37(5):45-49.
[4]陆少鸣,方平,杜敬,等.曝气生物滤池挂膜的中试实验[J].水处理技术, 2006, 32(8):67-69.Lu Shaoming, Fang Ping, Du Jing, et al. Pilot-scale experiment of hanging biological membrane on biological aerated filter[J]. Water Treatment Technology, 2006, 32(8):67-69.
[5]Volokita M, Abeliovich A, Inesmsoares M. Denitriftcation of ground water using cotton as energy source[J]. Water Science&Technology, 1996, 34(1/2):379-385.
[6]Trois C, Pisano G, Oxarango L. Alternative solutions for the bio-denitrification of landfill leachates using pine bark and compost[J]. Journal of Hazardous Materials, 2010, 178(1/2/3):1100-1105.
[7]刘佳,沈志强,周岳溪,等.聚丁二酸丁二醇酯(PBS)为反硝化固体碳源的脱氮特性研究[J].环境科学, 2014, 35(7):2639-2644.Liu Jia, Shen Zhiqiang, Zhou Yuexi, et al. Study on denitrification characteristics of polybutylene succinate(PBS)as denitrifying solid carbon source[J]. Chinese Journal of Environmental Science, 2014, 35(7):2639-2644.
[8]Chu L, Wang J. Denitrification performance and biofilm characteristics using biodegradable polymers PCL as carriers and carbon source[J]. Chemosphere, 2013, 91(9):1310-1316.
[9]Mihai M, Huneault M A, Favis B D, et al. Extrusion foaming of semi-crystalline PLA and PLA/thermoplastic starch blends[J]. Macromolecular Bioscience, 2010, 7(7):907-920.
[10]张千,范皓翔,张逸洲,等.固体碳源生物膜反应器的脱氮性能及机理研究[J].中国给水排水, 2015(19):27-32.Zhang Qian, Fan Haoxiang, Zhang Yizhou, et al. Study on denitrification performance and mechanism of solid carbon source biofilm reactor[J]. China Water Supply and Drainage, 2015(19):27-32.
[11]唐婧,刘昱迪,孙凤海,等.以玉米芯为外加碳源的SBBR脱氮特性[J].环境工程学报, 2016, 10(6):2775-2780.Tang Jing, Liu Yudi, Sun Fenghai, et al. Denitrogenation of SBBR with corncob as carbon source[J]. Chinese Journal of Environmental Engineering, 2016, 10(6):2775-2780.
[12]曹文平,张永明,李亚峰,等.竹丝填充床对高有机负荷及低C/N水质的脱氮特性[J].中国环境科学, 2010, 30(8):1067-1072.Cao Wenping, Zhang Yongming, Li Yafeng, et al. Study on denitrification characteristics of bamboo filled bed with high organic loading and low C/N water quality[J]. China Environmental Science, 2010, 30(8):1067-1072.
[13]唐婧,黄盼宁,傅金祥,等.玉米芯为外碳源对SBBR反硝化除磷性能的影响[J].环境工程学报, 2016(9):4705-4710.Tang Jing, Huang Panning, Fu Jinxiang, et al. Effects of corncob as external carbon source on denitrifying phosphorus removal by SBBR[J]. Chinese Journal of Environmental Engineering, 2016(9):4705-4710.
[14]李国朝,张新华,陈捷,等.以玉米芯为碳源和生物膜载体的反硝化反应器启动性能研究[J].安徽农业科学, 2011, 39(10):5994-5995.Li Guochao, Zhang Xinhua, Chen Jie, et al. Study on the performance of denitrification reactor with corncob as carbon source and biofilm carrier[J]. Anhui Agricultural Science, 2011, 39(10):5994-5995.
[15]叶姜瑜,项宏伟,王宗萍,等.固体碳源及生物强化CAST工艺处理低C/N生活污水的效果[J].安徽农业科学, 2017, 45(19):58-61.Ye Jiangyu, Xiang Hongwei, Wang Zongping, et al. Effects of solid carbon source and bio-enhanced CAST process on low C/N domestic sewage[J]. Anhui Agricultural Science,2017, 45(19):58-61.
[16]裴廷权,王波,刘欢.固体缓释碳源处理低碳氮比污水的脱氮及机理[J].环境工程学报, 2014, 8(6):2423-2428.Pei Tingquan, Wang Bo, Liu Huan. Removal of nitrogen and its mechanism for treatment of wastewater containing low C/N solid slow release carbon[J]. Chinese Journal of Environmental Engineering, 2014, 8(6):2423-2428.
[17]边朝辉.不同填料曝气生物滤池处理城市污水效能比较[D].武汉:华中科技大学, 2008.Bian Zhaohui. Comparison of Different Municipal Biological Aerated Filter Filtration for Municipal Wastewater Treatment Efficiency[D]. Wuhan:Huazhong University of Science and Technology, 2008.
[18]贾艳萍,姜成,张兰河,等.升流式曝气生物滤池运行特性及动力学[J].化工进展, 2017(10):3891-3903.Jia Yanping, Jiang Cheng, Zhang Lanhe, et al. Operation characteristics and kinetics of upflow biological aerated filter[J]. Chemical Industry Progress, 2017(10):3891-3903.
[19]王靖雯,徐洪斌,马浩亮,等.曝气生物滤池脱氮技术的研究进展[J].工业水处理, 2014(6):1-5.Wang Jingwen, Xu Hongbin, Ma Haoliang, et al. Advances in denitrification technology of biological aerated filter[J].Industrial Water Treatment, 2014(6):1-5.
[20]Hasan H A, Abdullah S R S, Kamarudin S K, et al. Response surface methodology for optimization of simultaneous COD, NH4+–N and Mn2+, removal from drinking water by biological aerated filter[J]. Desalination, 2011, 275(1/2/3):50-61.
[21]Pramanik B K, Fatihah S, Shahrom Z, et al. Biological aerated filters(BAFs)for carbon and nitrogen removal:a review[J]. Journal of Engineering Science&Technology, 2012, 7(4):534-553.
[22]Ren H, Hu H, Geng J, et al. Denitrification Biofilter Device and Method for Treating Wastewater, US20150108066[P].2015.