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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 g·L-1·d-1,0.1130和0.0809 g·g-1·d-1;R2的RNR、RAO和RAN分别为0.248 g·L-1·d-1,0.0936和0.0705 g·g-1·d-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.
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哈尔滨工业大学学报
ISSN: 0367-6234
Year: 2017
Issue: 8
Volume: 49
Page: 1-7
Cited Count:
SCOPUS Cited Count:
ESI Highly Cited Papers on the List: 0 Unfold All
WanFang Cited Count: -1
Chinese Cited Count:
30 Days PV: 0
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