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首页> 外文期刊>RSC Advances >Effect of temperature, salinity, heavy metals, ammonium concentration, pH and dissolved oxygen on ammonium removal by an aerobic nitrifier
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Effect of temperature, salinity, heavy metals, ammonium concentration, pH and dissolved oxygen on ammonium removal by an aerobic nitrifier

机译：温度，盐度，重金属，铵浓度，pH和溶解氧对有氧亚硝化铵的影响

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摘要

An aerobic nitrifier WY-01, isolated from coking wastewater, was identified as Alcaligenes faecalis by its 16S rRNA gene sequence analysis. It exhibited unusual capability for ammonium removal at initial NH4+-N 400 mg L-1 with low accumulated intermediates, and converted ammonium to N-2 under aerobic conditions. Based on nitrogen removal and enzyme assay, two distinct nitrogen removal pathways were proposed in strain WY-01. Additionally, the effect of different factors on ammonium removal by strain WY-01 was investigated. The results show that efficient removal of ammonium occurred at temperatures as low as 10 degrees C, 60 g L-1 salinity, 8 mmol L-1 Cu2+ or 0.5 mmol L-1 Zn2+ or 1 mmol L-1 of equivalent Cu2+-Zn2+, initial NH4+-N concentration from 50 to 1200 mg L-1 and pH from 5 to 10. The strong adaptability of strain WY-01 makes it a promising candidate for future application in actual wastewater treatment.
机译：由焦化废水中分离的有氧硝化硝化Wy-01，其16S rRNA基因序列分析被鉴定为Alcaligenes粪便。 它表现出在初始NH 4 + -N 400mg L-1处的铵去除铵的不寻常能力，并且在有氧条件下将铵转化为N-2。 基于氮去除和酶测定，在菌株WY-01中提出了两个不同的氮去除途径。 另外，研究了不同因素对菌株Wy-01铵去除的影响。 结果表明，在低至10℃，60g L-1盐度，8mmol L-1 Cu 2 +或0.5mmol L-1 Zn2 +或1mmol L-1的温度下，高效除去铵的高效除去铵。等效Cu2 + -Zn2 +， 初始NH4 + -N浓度从50-1200mg L-1和pH从5到10。菌株WY-01的强大适应性使其成为未来应用在实际废水处理中的有希望的候选者。

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  • 来源
    《RSC Advances》 |2015年第97期|共9页
  • 作者

    Wang Ying; Chen Hu; Liu Yu-Xiang; Ren Rui-Peng; Lv Yong-Kang;

  • 作者单位

    Taiyuan Univ Technol Key Lab Coal Sci &

    Technol Minist Educ &

    Shanxi Prov Taiyuan 030024 Shanxi Peoples R China;

    Taiyuan Univ Technol Key Lab Coal Sci &

    Technol Minist Educ &

    Shanxi Prov Taiyuan 030024 Shanxi Peoples R China;

    Taiyuan Univ Technol Coll Environm Sci &

    Engn Taiyuan 030024 Shanxi Peoples R China;

    Taiyuan Univ Technol Key Lab Coal Sci &

    Technol Minist Educ &

    Shanxi Prov Taiyuan 030024 Shanxi Peoples R China;

    Taiyuan Univ Technol Key Lab Coal Sci &

    Technol Minist Educ &

    Shanxi Prov Taiyuan 030024 Shanxi Peoples R China;

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  • 正文语种 eng
  • 中图分类 化学;
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