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三株低温硝化菌的筛选及其固定化脱氮性能

李思琦 李珍阳 刘琳 姜润 王晓慧

李思琦, 李珍阳, 刘琳, 姜润, 王晓慧. 三株低温硝化菌的筛选及其固定化脱氮性能[J]. 环境工程, 2021, 39(12): 51-58,78. doi: 10.13205/j.hjgc.202112008
引用本文: 李思琦, 李珍阳, 刘琳, 姜润, 王晓慧. 三株低温硝化菌的筛选及其固定化脱氮性能[J]. 环境工程, 2021, 39(12): 51-58,78. doi: 10.13205/j.hjgc.202112008
LI Si-qi, LI Zhen-yang, LIU Lin, JIANG Run, WANG Xiao-hui. THE SCREENING OF LOW-TEMPERATURE NITRIFYING BACTERIA STAINS AND THEIR IMMOBILIZATION AND DENITRIFICATION PERFORMANCE[J]. ENVIRONMENTAL ENGINEERING , 2021, 39(12): 51-58,78. doi: 10.13205/j.hjgc.202112008
Citation: LI Si-qi, LI Zhen-yang, LIU Lin, JIANG Run, WANG Xiao-hui. THE SCREENING OF LOW-TEMPERATURE NITRIFYING BACTERIA STAINS AND THEIR IMMOBILIZATION AND DENITRIFICATION PERFORMANCE[J]. ENVIRONMENTAL ENGINEERING , 2021, 39(12): 51-58,78. doi: 10.13205/j.hjgc.202112008

三株低温硝化菌的筛选及其固定化脱氮性能

doi: 10.13205/j.hjgc.202112008
基金项目: 

国家重点研发计划项目(2016YFC0401105)

北京市科技计划项目(Z181100002418017)。

详细信息
    作者简介:

    李思琦(1997-),女,硕士研究生,主要研究方向为污水生物处理。bowalk@163.com

    通讯作者:

    王晓慧(1980-),男,教授,主要研究方向为水污染控制理论与技术、环境微生物。xhwang@mail.buct.edu.cn

THE SCREENING OF LOW-TEMPERATURE NITRIFYING BACTERIA STAINS AND THEIR IMMOBILIZATION AND DENITRIFICATION PERFORMANCE

  • 摘要: 由于季节、地域等因素导致的低温环境会严重影响污水生物处理系统中微生物活性,如何提高微生物在低温废水中的脱氮效果是亟待解决的问题。从工程实际出发,在3种不同环境中提取出低温硝化菌BC-15、SL-14、MI-11,其在13℃下仍具有高效的脱氮性能,经16S rDNA鉴定均为Acinetobacter sp.。菌株间不产生拮抗反应,BC-15、SL-14、MI-11最佳复配体积比为1∶1∶1。采用海藻酸钠-聚乙烯醇和海藻酸钠-硅藻土材料对复配菌株包埋固定化,对比结果表明海藻酸钠-硅藻土材料固定化硝化能力更强,优化固定化材料最佳配比为硅藻土1%、SA 2%、CaCl2 3%、沸石6%。固定化颗粒成球性、传质性、稳定性均较好,固定后菌株耐酸耐碱能力明显增强,重复利用4次后氨氮去除率仍可达到76.67%,硝化能力和结构稳定。固定化颗粒对实际生活污水中的氨氮去除率可达到95.86%,具有高效的硝化能力,为低温污水处理实际工程应用提供了可能。
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出版历程
  • 收稿日期:  2020-10-03
  • 网络出版日期:  2022-03-30
  • 刊出日期:  2022-03-30

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