取消初沉池对AAO工艺活性污泥微生物结构的影响
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摘要
采用有初沉池与无初沉池的两组AAO工艺反应器处理城市生活污水处理厂沉砂池出水,研究初沉池对AAO工艺处理城市生活污水效能及活性污泥微生物结构的影响。研究表明,两系统对水中COD、BOD5、NH4+-N和TP均具有良好的去除能力,处理出水均可达标排放;无初沉池的系统对TN的去除能力高于有初沉池的系统。高通量结果表明,有无初沉池对反硝化相关功能菌群的分布比例有显著影响,无初沉池的系统中反硝化相关功能菌群比例高于有初沉池的系统。
Two groups of AAO process reactors,one with a primary settling tank and the other one without,have been used for treating the effluent from the grit chamber of an urban domestic sewage treatment plant,the influences of the primary settling tanks on the efficiency of AAO process for treating urban domestic sewage,and the microbial structure of the activated sludge investigated. The results show that both of the two systems have good ability to remove the COD,BOD5,NH4+-N and TP,and all of the treated effluent could reach the discharge standard. The TN removing ca-pability of the system without a primary settling tank is higher than that of the system with a primary settling tank. The high flux results show that the system with and without primary settling tank have significant influence on the distri-bution proportion of denitrifying-related functional floras,and the proportion of denitrifying-related functional floras in the system without a primary settling tank is higher than that in the system with a primary settling tank.
Two groups of AAO process reactors,one with a primary settling tank and the other one without,have been used for treating the effluent from the grit chamber of an urban domestic sewage treatment plant,the influences of the primary settling tanks on the efficiency of AAO process for treating urban domestic sewage,and the microbial structure of the activated sludge investigated. The results show that both of the two systems have good ability to remove the COD,BOD5,NH4+-N and TP,and all of the treated effluent could reach the discharge standard. The TN removing ca-pability of the system without a primary settling tank is higher than that of the system with a primary settling tank. The high flux results show that the system with and without primary settling tank have significant influence on the distri-bution proportion of denitrifying-related functional floras,and the proportion of denitrifying-related functional floras in the system without a primary settling tank is higher than that in the system with a primary settling tank.
引文
[1]邵林广.城市污水处理中初沉池的设置[J].给水排水,2001,27(9):5-7.
[2]曹岳.城市污水特征及碳源组分结构对反硝化影响研究[D].太原:太原理工大学,2016.
[3]张波,高廷耀.初沉池取消后活性污泥法工艺的功能强化与局限性问题[J].中国给水排水,1996(2):29-31.
[4]Gentile M E,Jessup C M,Hyman J L,et al. Correlation of functional instability and community dynamics in denitrifying dispersed-growth reactors[J]. Applied&Environmental Microbiology,2007,73:680-690.
[5]贾凡凹.有机氮工业污水缺氧/两级好氧处理系统特征及吹脱除氨研究[D].哈尔滨:哈尔滨工程大学,2014.
[6]王硕,徐巧,张光生,等.完全混合式曝气系统运行特性及微生物群落结构解析[J].环境科学,2017,38(2):665-667.
[7]范军辉,郝瑞霞,朱晓霞,等.温度对SCSC-S/Fe复合系统脱氮除磷及微生物群落特性的影响[J].环境科学,2017,38(5):2012-2020.
[8]Xie Chenghui,Yokota A. Reclassification of Flavobacterium ferrugineum as Terrimonas ferruginea gen. nov.,comb. nov.,and description of Terrimonaslutea sp. nov.,isolated fromsoil[J]. International Journal of Systematic and Evolutionary Microbiology,2006,56(5):1117-1121.
[9]Zhang Hui,Sekiguchi Y,Hanada S,et al. Gemmatimonas aurantiaca gen. nov., sp. nov.,a gram-negative,aerobic,polyphosphate-accumulating micro-organism,the first cultured representative of the new bacterial phylum Gemmatimonadetes phyl. nov.[J]. International Journal of Systematic and Evolutionary Microbiology,2003,53(4):1155-1163.
[10]钱祝胜,付亮,丁静,等.中空纤维膜生物反应器富集反硝化厌氧甲烷氧化菌群的研究[J].中国科学技术大学学报,2014,44(11):887-892.
[11]汤丹娜.硫磺/石灰石自养反硝化系统硝酸盐去除性能及N2O产生规律研究[D].西安:长安大学,2017.
[2]曹岳.城市污水特征及碳源组分结构对反硝化影响研究[D].太原:太原理工大学,2016.
[3]张波,高廷耀.初沉池取消后活性污泥法工艺的功能强化与局限性问题[J].中国给水排水,1996(2):29-31.
[4]Gentile M E,Jessup C M,Hyman J L,et al. Correlation of functional instability and community dynamics in denitrifying dispersed-growth reactors[J]. Applied&Environmental Microbiology,2007,73:680-690.
[5]贾凡凹.有机氮工业污水缺氧/两级好氧处理系统特征及吹脱除氨研究[D].哈尔滨:哈尔滨工程大学,2014.
[6]王硕,徐巧,张光生,等.完全混合式曝气系统运行特性及微生物群落结构解析[J].环境科学,2017,38(2):665-667.
[7]范军辉,郝瑞霞,朱晓霞,等.温度对SCSC-S/Fe复合系统脱氮除磷及微生物群落特性的影响[J].环境科学,2017,38(5):2012-2020.
[8]Xie Chenghui,Yokota A. Reclassification of Flavobacterium ferrugineum as Terrimonas ferruginea gen. nov.,comb. nov.,and description of Terrimonaslutea sp. nov.,isolated fromsoil[J]. International Journal of Systematic and Evolutionary Microbiology,2006,56(5):1117-1121.
[9]Zhang Hui,Sekiguchi Y,Hanada S,et al. Gemmatimonas aurantiaca gen. nov., sp. nov.,a gram-negative,aerobic,polyphosphate-accumulating micro-organism,the first cultured representative of the new bacterial phylum Gemmatimonadetes phyl. nov.[J]. International Journal of Systematic and Evolutionary Microbiology,2003,53(4):1155-1163.
[10]钱祝胜,付亮,丁静,等.中空纤维膜生物反应器富集反硝化厌氧甲烷氧化菌群的研究[J].中国科学技术大学学报,2014,44(11):887-892.
[11]汤丹娜.硫磺/石灰石自养反硝化系统硝酸盐去除性能及N2O产生规律研究[D].西安:长安大学,2017.