本发明属于有机污染物微生物修复技术领域，具体涉及一株能降解正二十烷的节杆菌及其应用。能降解正二十烷的节杆菌的名称为Arthrobacter sp.C20，保藏于中国典型培养物保藏中心，保藏编号为CCTCC M 2021367。本发明的能降解正二十烷的节杆菌可以通过发酵降解正二十烷降解性能稳定，可有效降解焦化废水中的正二十烷和降低水体的CODCr。利用本发明的节杆菌可以通过发酵降解正二十烷，避免了传统的物理化学处理方法中成本高、过程复杂、技术难度高、二次污染严重等问题，对人类健康和公共环境不会造成任何危害。本发明的节杆菌可永久保存，为今后的机理研究和更进一步的产业应用打下基础。
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