摘要：【中文】本发明属于环境治理领域，提供治理或净化黑臭水体水质的方法，所述黑臭水体包含S^2‑，所述方法包括向所述水体中施用本发明的寡养单胞菌sp3或其组合物。本发明的方法利用寡养单胞菌高效地氧化S^2‑，有效降低水体中S^2‑含量，从而改善水体质量，在黑臭水体的治理和净化上有显著的效果。 【EN】The invention belongs to the field of environmental management and provides a method for treating or purifying the water quality of black and odorous water body containing S^2‑The method comprises administering stenotrophomonas sp3 of the invention or a composition thereof into the body of water. The method of the invention utilizes stenotrophomonas to efficiently oxidize S^2‑Effectively reduce S in the water body^2‑The content of the black and odorous water is reduced, thereby improving the quality of the water body and having remarkable effect on the treatment and purification of the black and odorous water body.