全部 标题 作者
关键词 摘要

OALib Journal期刊
ISSN: 2333-9721
费用:99美元

查看量下载量

相关文章

更多...
环境化学  2015 

全程补碳的A2/O工艺对同步脱氮除磷的影响

Keywords: A2/O工艺,脱氮除磷,碳源类型,投加方式,投加量,回流比

Full-Text   Cite this paper   Add to My Lib

Abstract:

为解决A2/O工艺处理低浓度城市生活污水的碳源问题,采用了甲醇、葡萄糖、乙酸分别作为A2/O系统的碳源,结果表明,甲醇作为系统外加碳源最经济、最合适,其中TN、TP去除率分别达到75.81%和76.21%,NOx--N被去除时间为30min.研究最大化利用碳源,得到外加碳源甲醇在厌氧/缺氧/好氧区段的投加比例为120、投加量为400mg·L-1,硝酸盐回流比为250%时,系统运行效果最佳,TN、NH3-N和TP去除率分别为90.56%、96.67%和92.56%,出水浓度分别为12.3mg·L-1、4.1mg·L-1和0.45mg·L-1,达到GB18918-2002一级A类标准.通过一段时间的运行,在缺氧段发生了反硝化吸磷的现象,有利于碳源的节省和系统的高效运行.

References

[1]  张亚克,梁霞,方焰星,等.淀山湖浮游藻类增长的氮磷限制性营养研究[J].环境化学,2011,30(10):1744-1750
[2]  张卉,李伟光,田文德.改进型A2/O工艺处理城市生活污水的脱氮除磷效能研究[J].环境污染与防治,2012,34(3):26-29
[3]  Ding Y W, Wang L,Wang B Z, et al. Removal of nitrogen and phosphorus in a combined A2/O-BAF system with a short aerobic SRT[J]. Journal of Environmental Sciences,2007,18 (6):1082-1087
[4]  Chen Y Z,Peng C Y,Wang J H,et al. Effect of nitrate recycling ratio on simultaneous biological nutrient removal in a novel anaerobic/anoxic/oxic (A2/O)-biological aerated filter (BAF) system[J]. Bioresearch Technology,2011,102 (10):5722-5727
[5]  吴凡松,彭永臻,王维斌.生物选择器与除磷脱氮[J].给水排水,2003,29(12): 32-34
[6]  李思敏,杜国帅,唐锋兵,等.改良 A2/O工艺对低碳源污水的脱氮除磷性能分析[J].中国给水排水,2013,29(12):25-29
[7]  José M,Estrada,Guillermo Q J,et al. Step-feed biofiltration: A low cost alternative configuration for off-gas treatment[J]. Water Research,2013,47(13):4312-4321
[8]  Barker P S, Dold P L. Denitrification behaviour in biological excess phosphorus removal activated sludge system[J]. Water Research, 1996, 30 (4): 769-780
[9]  Cao G H,Wang S Y,Peng Y Z,et al. Biological nutrient removal by applying modified four step feed technology to treat weak wastewater[J]. Bioresource Technology,2013,128:604-611
[10]  Girard L, Encina P A G, Rodriguez E R. Process performance and polyphosphate-accumulating organism-glycogen-accumulating organism communities in an anaerobic/anoxic/oxic system operated with different carbon sources[J]. Water Environment Research,2012,84 (4):354-361
[11]  潘杨,俞苗新,黄勇,等.污泥转移序批式间歇活性污泥法(SBR) 工艺除磷特性[J].环境化学,2013,32(2):275-280
[12]  余灿.改良A2/O碳源分流比及外加黄水补充碳源可行性研究.武汉: 武汉理工大学硕士学位论文,2012
[13]  Volokita M,Belkin S,Abeliovich A. Biological denitrification of drinking water using newspaper[J].Water Research,1996,30(4):96-103
[14]  郭海燕,柳志刚,郭祯,等.不同进水有机物浓度下移动床生物膜反应器(SBMBBR)脱氮除磷特性[J].环境化学,2012,31(4):504-510
[15]  Saito T,Brdjanovic D,Van Loosdrecht M C M. Effect of nitrite on phosphate uptake by phosphate accumulating organisms[J]. Water Research, 2004,38 (17):3760-3768
[16]  Kang X S,Liu C Q,Zhang B,et al. Application of reversed A2/O process on removing nitrogen and phosphorus from municipal wastewater in China[J]. Water Science and Technology,2011,63(10):2138-2142
[17]  Kirilova E P,Cremer H,Heiri O,et al. Eutrophication of moderately deep Dutch lakes during the past century: Flaws in the expectations of water management?[J]. Hydrobiology,2010,637 (1):157-171
[18]  江林燕,江成,周伟,等.水体扰动对铜绿微囊藻生长影响的规律及原因[J].环境化学,2012,31(2):216-220
[19]  Cao S B, Wang S Y,Peng Y Z,et al. Achieving partial denitrification with sludge fermentation liquid as carbon source: The effect of seeding sludge[J].Bioresource Technology, 2013,149:570-574
[20]  Javier G, Albert G,Juan A. The nature of the carbon source rules the competition between PAO and denitrifiers in systems for simultaneous biological nitrogen and phosphorus removal Original Research Article[J]. Water Research, 2011, 45(16):4793-4802
[21]  Ruiz G, Jeison D, Rubilar O, et al. Nitrification dentrification via nitrite accumulation for nitrogen removal from wastewaters[J]. Bioresearch Technology,2006,97(2): 330-335
[22]  Raymond Z,Yuan Z G,Van Loosdrecht M C M,et al. Modifications to metabolic model for glycogen accumulating organisms under anaerobic conditions[J]. Biotechnology and Bioengineering,2002,80(3):277-279
[23]  Lu H B, Adrian O,Bernardino V,et al. Obtaining highly enriched cultures of Candidatus Accumulibacter phosphates through alternating carbon sources[J]. Water Research,2006,40(20):3838-3848
[24]  Thongchai P W, Tongkhammak N P, Jin A. Estimation of intracellular phosphorus content of phosphorus-accumulating organisms at different P:COD feeding ratios[J]. Journal of Environmental Management,2007,84(2):141-145
[25]  王淑莹,殷芳芳,侯红勋,等.以甲醇作为外碳源的生物反硝化[J].北京工业大学学报,2009,25(11):1521-1526
[26]  Zhang T,Liu Y,Fang H P. Effect of pH change on the performance and microbial community of enhanced bio logical phosphate removal process[J]. Biotechnology and Bioengineering,2005,92(2):173-182
[27]  Podedworna J,ubrowska-Sudo? M. Nitrogen and phosphorus removal in a denitrifying phosphorus removal process in a sequencing batch reactor with a forced anoxic phase[J]. Environmental Technology,2012,33 (2):237-245

Full-Text

Contact Us

service@oalib.com

QQ:3279437679

WhatsApp +8615387084133