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Author:

杨宏 (杨宏.) | 胡银龙 (胡银龙.)

Indexed by:

CQVIP PKU CSCD

Abstract:

为实现硝化细菌规模化富集及包埋固定化技术的工业化应用.以污水厂回流污泥为菌源,利用工业级生物发酵罐,连续投加并逐渐提高底物浓度,控制FA和FNA实现硝化细菌的快速增长,实现了氨氧化速率118 mg?(L?h)-1的高表达.高通量种群分析结果表明,回流污泥生物多样性较大,具有硝化作用的Nitrosomonas比例仅为0.53%;富集培养后污泥多样性明显降低,Nitrosomonas比例上升至10.27%,相较于驯化前,比例提高了20倍.以此为菌源,用PVA(聚乙烯醇)进行包埋固定化,包埋填料填充率为30%,通过连续流的方式进行包埋填料的活性恢复,仅用27 d填料的硝化速率达到62 mg?(L?h)-1,证明包埋填料活性恢复.

Keyword:

细菌包埋 扩大培养 硝化细菌 高通量测序 富集培养

Author Community:

  • [ 1 ] [杨宏]北京工业大学
  • [ 2 ] [胡银龙]北京工业大学

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Source :

环境科学

ISSN: 0250-3301

Year: 2018

Issue: 6

Volume: 39

Page: 2763-2769

Cited Count:

WoS CC Cited Count:

SCOPUS Cited Count:

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count: 8

Chinese Cited Count:

30 Days PV: 0

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