Ecological benefits of Longtan Hydropower Station

Standing on the viewing platform at the commanding heights specially reserved in the Longtan Hydropower Project Dam Area, you can overlook the entire Longtan and have a panoramic view of the large construction site of 9.2 square kilometers. Before the main construction of Longtan Hydropower Project started in 2001, the Immigration and Environmental Protection Department was established to be responsible for the environmental protection and water conservation management of the project. Construction of the main project started in July 2001, and the environmental protection and water conservation work in the construction area became increasingly heavy. In order to further strengthen the leadership and management of environmental protection and water conservation, in August 2002, the company abolished the Immigration and Environmental Protection Department and established the Immigration and Environmental Protection Department. Strict assessment is the key to environmental protection. In June 2001, the company specially formulated the "Notice on Strictly Prohibiting the Disposal of Slag into Riverbeds and River Channels", and violators will be fined 10,000 yuan. Longtan Company has also organized scientific research forces to tackle key problems and promote scientific and environmental protection. The company invested more than 10 million yuan to build an ecological water treatment system for the Macun sand and gravel yard to control the main pollution sources. This system adopts the advanced technologies of straight hydrocyclone and sludge filter press dehydration, which are currently leading domestic hydropower projects, and successfully solved the problem of processing wastewater from the Macun stone quarry. According to the person in charge of the Immigration and Environmental Protection Department of Longtan Company, five water supply systems have been constructed in the entire Longtan project, which can basically meet the water needs of the entire dam area construction, and have achieved the goal of zero wastewater discharge. After the Longtan Hydropower Project is put into operation, the system can reduce fuel consumption equivalent to about 5.6 million tons of standard coal per year, and reduce emissions of air pollutants such as carbon dioxide and sulfur dioxide. At the same time, Longtan Reservoir will form a broad and calm lake of about 360 square kilometers, greatly reducing non-point source organic pollution caused by industrial and agricultural production and people's lives along the coast. Reservoir regulation during dry periods can significantly improve the water quality of the middle and lower reaches of the river, protect river water resources, and reduce and preventing water pollution. The Hongshui River is a typical silt-rich river. The Longtan dam site has an average sand transport volume of 52.4 million tons over the years. After the reservoir reduces sedimentation, the annual sand output from the reservoir is reduced to 15 million tons. The annual sand transport volume is reduced by 3,740 tons, which can significantly Reduce soil erosion.