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主管单位 中华人民共和国
工业和信息化部
主办单位 哈尔滨工业大学 主编 冷劲松 国际刊号ISSN 0367-6234 国内刊号CN 23-1235/T

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引用本文:李冬,田海成,梁瑜海,范丹,张杰.容积交换率对SNAD污泥颗粒化与稳定运行的影响[J].哈尔滨工业大学学报,2017,49(8):1-7.DOI:10.11918/j.issn.0367-6234.201509117
LI Dong,TIAN Haicheng,LIANG Yuhai,FAN Dan,ZHANG Jie.Influence of volumetric exchange rate on granulation and stable operation simultaneous partial nitrification, anaerobic ammonium oxidation and denitrification (SNAD) sludge[J].Journal of Harbin Institute of Technology,2017,49(8):1-7.DOI:10.11918/j.issn.0367-6234.201509117
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容积交换率对SNAD污泥颗粒化与稳定运行的影响
李冬1,田海成1,梁瑜海1,范丹1,张杰1,2
(1.水质科学与水环境恢复工程北京市重点实验室(北京工业大学),北京 100124; 2.城市水资源与水环境国家重点实验室(哈尔滨工业大学),哈尔滨 150090)
摘要:
为研究不同容积交换率对同步亚硝化-厌氧氨氧化与反硝化工艺(SNAD)污泥颗粒化及稳定运行的影响,采用容积交换率分别为37.5%(R1)和75%(R2)的SBR进行对比实验.结果表明,R1仅用36 d就实现了颗粒化,比R2快1/3,且颗粒化过程中R1的污泥流失较小;R1总氮去除速率(RNR)、单位MLVSS好氧氨氧化活性(RAO)和厌氧氨氧化活性(RAN)分别为0.356 gL-1d-1,0.113 0和0.080 9 gg-1d-1;R2的 RNR、RAO和RAN分别为0.248 gL-1d-1,0.093 6和0.070 5 gg-1d-1.由此表明:较小的容积交换率有利于减少絮体流失,从而加快SNAD污泥的颗粒化进程;有利于提高AOB与AnAOB的活性以及抑制NOB活性,从而实现SNAD工艺稳定高效的去除效果.
关键词:  同步亚硝化-厌氧氨氧化与反硝化工艺  容积交换率  颗粒化  微生物活性
DOI:10.11918/j.issn.0367-6234.201509117
分类号:X703.1
文献标识码:A
基金项目:北京市青年拔尖团队项目(2014000026833TD02)
Influence of volumetric exchange rate on granulation and stable operation simultaneous partial nitrification, anaerobic ammonium oxidation and denitrification (SNAD) sludge
LI Dong1,TIAN Haicheng1,LIANG Yuhai1,FAN Dan1,ZHANG Jie1,2
(1.Key Laboratory of Beijing for Water Quality Science and Water Environment Recovery Engineering(Beijing University of Technology),Beijing 100124,China;2.State Key Laboratory of Urban Water Resource and Environment(Harbin Institute of Technology),Harbin 150090,China)
Abstract:
In order to study the effect of different volumetric exchange rates (VER) on the granulation and stable operation of SNAD sludge, two lab-scale SBR reactors, with a 37.5% VER (R1) and 75% VER (R2), were comparably analyzed. Experimental results demonstrated that the granulation of R1 could be achieved in 36 days, was 12 days faster than R2. Meanwhile, a relatively lower sludge loss rate of R1 was obtained. The nitrogen removal rate (RNR), RAO and RAN in R1 were 0.356 gL-1d-1, 0.113 0 and 0.080 9 gg-1d-1, respectively; while that of R2 was 0.248 gL-1d-1,0.093 6 and 0.070 5 gg-1d-1, respectively. This confirmed that a lower VER reduced the loss of floc sludge, and further declined the granulation period. Moreover, a lower VER not only enhanced the activity of ammonia-oxidizing and anaerobic ammonia-oxidizing bacteria, but also suppressed nitrite-oxidizing bacteria, was benefit for a stable and efficient removal performance of the SNAD granular sludge.
Key words:  SNAD  granulation  volumetric exchange rate  microbial activity

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