海水资源梯次多元化高效利用收效，多地出台奖补政策

Core Insights - The report highlights the significant progress in seawater desalination projects in China, with a total of 158 projects and a capacity of 2.856 million tons per day in 2024, an increase of 333,000 tons per day from 2023 [1] - Coastal provinces are actively developing large-scale seawater desalination projects to ensure a reliable water supply for high-water-consuming industries such as power, petrochemicals, and steel [1][3] Seawater Utilization Overview - Seawater utilization encompasses desalination, direct use, and chemical resource extraction, with policies encouraging the development of seawater resources in coastal areas [2] - The State Council's regulations prioritize the use of desalinated seawater for new industrial projects in water-scarce coastal regions [2] Industrial Applications - The majority of desalinated seawater is used for industrial purposes, particularly in coastal regions, with some allocated for domestic use in island areas and water-scarce coastal cities [3] - Major projects like the Tianjin South Port Industrial Zone desalination project and others are set to provide essential water resources for industries such as petrochemicals and nuclear power [3][4] Technological Developments - The Tianjin South Port project is a key collaboration under the Belt and Road Initiative, featuring a capacity of 150,000 tons per day and utilizing domestically produced equipment [4] - The report indicates that by the end of 2024, 141 desalination projects will employ reverse osmosis technology, accounting for 68.25% of total capacity [5] Policy Support and Incentives - Various local governments have introduced incentive policies to promote seawater desalination projects, including financial subsidies based on fixed asset investments [6][7]