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Author:

曹相生 (曹相生.) | 钱栋 (钱栋.) | 孟雪征 (孟雪征.)

Indexed by:

CQVIP PKU CSCD

Abstract:

利用序批式反应器,以CH3 COONa为唯一碳源,对反硝化污泥进行了50 d的长期驯化.之后,利用缓冲溶液将反硝化过程中pH值的上升幅度控制在0.5范围内,研究了不同碳氮比下的反硝化规律.结果表明,无论碳源是否充足,反硝化过程中硝酸盐氮和亚硝酸盐氮的变化趋势基本相同,即反硝化过程中均会出现亚硝酸盐氮积累且随后逐渐消失的现象.硝酸盐氮还原完毕时,亚硝酸盐氮会出现最大积累量,同时反硝化速率出现拐点,速率开始明显加快.当碳氮比从1.0增加到3.7时,反硝化速率明显增加.反硝化菌可过量吸附CH3COONa,因此在以CH3COONa为外加碳源进行反硝化时,即使CH3COONa投加过量,出水COD值也能维持在较低水平.

Keyword:

硝酸盐氮 乙酸钠 亚硝酸盐氮 反硝化 碳源 碳氮比

Author Community:

  • [ 1 ] [曹相生]北京工业大学
  • [ 2 ] [钱栋]山东省济南市规划设计研究院
  • [ 3 ] [孟雪征]北京工业大学

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Source :

中国给水排水

ISSN: 1000-4602

Year: 2011

Issue: 21

Volume: 27

Page: 76-79

Cited Count:

WoS CC Cited Count: 0

SCOPUS Cited Count:

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count: 54

Chinese Cited Count:

30 Days PV: 24

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