Leaders from the Wuhan Municipal Bureau of Ecology and Environment and the water conservancy systems of various districts spoke highly of the achievements in the water environment improvement of Longyang Lake open channel.

　　Longyang Lake open channel was once a notorious black and odorous water body in Hanyang District, Wuhan City. It has been a subject of widespread concern for a long time, and various levels of leaders, including members of the Wuhan Municipal Party Committee Standing Committee and the District People's Congress Standing Committee, have conducted on-site investigations and supervision on multiple occasions. In 2019, the Longyang Lake open channel water environment governance project was listed as a Wuhan Military World Games environmental comprehensive improvement project. Hubei Qirun Ecological Construction Co., Ltd. took on the task of governing the water environment of Longyang Lake open channel. Under the circumstances of tight time, heavy tasks, and high technical difficulty, it overcame difficulties and achieved remarkable results in eliminating blackness and odor.

　　On the afternoon of June 18, 2020, Yan Zhongning, director of the Wuhan Municipal Bureau of Ecology and Environment; Xiao Yongjiu, deputy district head of Hanyang District; Tu Shiping, director of the Hanyang Branch of the Wuhan Municipal Bureau of Ecology and Environment; Xu Caiyong, director of the Hanyang District Water Affairs Bureau; and other relevant leaders from water affairs bureaus in various districts of Wuhan conducted a field investigation into the governance effect of Longyang Lake open channel. During the on-site inspection, the Hanyang District Water Affairs Bureau detailed the treatment technology and implementation process used by the company. After the governance, the water quality of the Longyang Lake open channel has been significantly improved, and the long-standing odor problem that plagued nearby residents has been solved. The leaders of the various inspecting units gave high praise to the governance effect of the Longyang Lake open channel governance project.

　　Leaders from the Wuhan Municipal Bureau of Ecology and Environment and the water affairs systems of various districts inspected the Longyang Lake open channel water environment governance site.

　　In the governance of the Longyang Lake open channel water environment, Qirun Company implemented sewage interception, dredging, and water quality improvement projects, mainly including aeration, artificial biofilm carriers, application of immobilized microbial agents, ecological floating islands, and the planting of emergent plants. At present, the Longyang Lake open channel water body has sufficient dissolved oxygen. The biofilm carrier system has basically matured and stabilized. A multi-level biological chain aquatic ecosystem composed of microorganisms, algae, protozoa, zooplankton, and fish has been basically established. The water body's self-purification capacity has been significantly improved, and it has a certain ability to resist pollution impact.

　　Before the water environment governance of Longyang Lake open channel

　　 After the water environment governance of Longyang Lake open channel