2024年3月，国务院颁布《节约用水条例》，提出沿海地区应当积极开发利用海水资源。沿海或者海岛 淡水资源短缺地区新建、改建、扩建工业企业项目应当优先使用海水淡化水。具备条件的，可以将海水 淡化水作为市政新增供水以及应急备用水源。为此，我国沿海省市积极推进大型海水淡化工程建设和运 行，海水淡化规模持续扩大。 此后，国家发展改革委、自然资源部印发实施加强海岛海水淡化利用的政策文件，推动加快补齐海岛供 水短板。海水利用作为重要内容被列入国家发展改革委等五部委《关于加快发展节水产业的指导意 见》、自然资源部《关于高水平保护高效率利用自然资源推动生态产品价值实现的意见》等。 自然资源部海洋战略规划与经济司日前发布的《2024年全国海水利用报告》（以下简称《报告》）显 示，2024年，全国有海水淡化工程158个，工程规模达285.6万吨/日，比2023年增加33.3万吨/日。 海水利用主要包括海水淡化、海水直接利用和海水化学资源利用。 《报告》显示，2024年全国有万吨级及以上海水淡化工程61个，工程规模263万吨/日；千吨级及以上、 万吨级以下海水淡化工程48个，工程规模20万吨/日；千吨级以下海水淡化工程49个，工程 ...

2024年全国有海水淡化工程158个，工程规模285.6万吨/日。辽宁、山东、江苏、浙江、福建、广东年 海水冷却用水量超过百亿吨。 我国海水资源梯次多元化高效利用收到明显成效，截至目前，全国有海水淡化工程158个，沿海省市推 进大型海水淡化工程建设，为沿海电力、石化、钢铁等高耗水行业用水提供可靠水源保障。 自然资源部海洋战略规划与经济司18日发布《2024年全国海水利用报告》（下称《报告》）。《报告》 显示，2024年全国有海水淡化工程158个，工程规模285.6万吨/日，比2023年增加了33.3万吨/日。2024 年全国海水冷却用水量1883.36亿吨，比2023年增加29.57亿吨。辽宁、山东、江苏、浙江、福建、广东 年海水冷却用水量超过百亿吨。 天津、山东、江苏、浙江等沿海省市推进大型海水淡化工程建设，为沿海电力、石化、钢铁等高耗水行 业用水提供可靠水源保障；天津、河北、山东、福建等地开展海水提溴、提钾工艺技术装备研发与成果 转化，探索海水资源梯次多元化高效利用，提高资源利用效率。 海水利用主要包括海水淡化、海水直接利用和海水化学资源利用。2024年3月，国务院颁布的《节约用 水条例》提出"沿海地区应 ...

Group 1: Marine Economy Development - The core viewpoint emphasizes the importance of high-quality development in the marine economy as part of China's modernization strategy, driven by technological innovation [1] - The Chinese government is focusing on enhancing independent innovation capabilities in marine technology and fostering leading marine technology enterprises [1] - The article highlights the significance of marine resources and the need for strategic management to boost the marine economy [1] Group 2: Marine Aquaculture - The article discusses the advantages of large-scale aquaculture, specifically the use of oversized net cages that enhance the quality of fish, such as the large yellow croaker [2] - The unique geographical features of the region, including nutrient-rich waters from three rivers, contribute to the area's prominence in yellow croaker production [2] - Innovations in net cage design, such as using high-density polyethylene, improve resilience against harsh weather conditions [2][3] Group 3: Smart Aquaculture Technologies - The integration of smart technologies in aquaculture management allows for real-time monitoring of water quality parameters, significantly reducing disease rates among fish [3] - The establishment of a net-free sound wave marine ranch aims to simulate wild conditions for fish, aiding in the recovery of natural populations [3] Group 4: Wind Power Development - The article outlines the rapid development of offshore wind power in Fujian, with a total installed capacity of 383,000 kilowatts expected by May 2025 [6][7] - The use of domestic equipment in offshore wind projects marks a significant advancement in China's high-end manufacturing capabilities [7] - The article highlights the importance of energy storage solutions to enhance the utilization of offshore wind power [7] Group 5: Seaweed Industry Potential - Seaweed is identified as a valuable resource with significant potential for high-end applications, such as the production of ultra-pure sodium alginate for medical use [8][9] - The successful industrialization of ultra-pure sodium alginate represents a breakthrough in overcoming previous market monopolies [9] Group 6: LNG Dual-Fuel Shipbuilding - The construction of LNG dual-fuel ships is highlighted as a response to international emissions reduction targets, with significant reductions in CO2 emissions [10][12] - The article discusses the challenges faced in developing LNG fuel tanks and the innovative solutions implemented by domestic shipbuilders [11] Group 7: Desalination Projects - The establishment of a large-scale seawater desalination project in Tianjin aims to meet the freshwater needs of the chemical industry, replacing over 5 million tons of freshwater annually [14][15] - The project utilizes advanced dual-membrane desalination technology, achieving significant efficiency in freshwater production [15][16] - The integration of a circular economy model around desalination processes is being developed to enhance resource utilization [16]