深度！韦伯咨询：2025年中国海水淡化行业专题调研与深度分析报告（最新版发布）

Core Insights - The desalination industry in China is experiencing significant growth, with a total of 156 desalination projects in operation by the end of 2023, achieving a processing capacity of 2.523 million tons per day, representing a year-on-year increase of 7% [1][4][8] Industry Overview - Desalination is a technology that converts seawater into freshwater, providing a stable water supply for coastal residents and industries, unaffected by time and climate [1] - The cost of desalination has been decreasing due to advancements in technology, with energy consumption for processing one cubic meter of seawater dropping from 5 kWh to less than 3 kWh over the past 20 years [1] Project Scale and Distribution - Among the existing desalination projects, those with a capacity of 1 million tons per day or more account for 230,000 tons per day, which is 92% of the total capacity [2] - The top three provinces in terms of desalination capacity are Zhejiang (800,000 tons/day), Shandong (710,000 tons/day), and Hebei (390,000 tons/day) [4][6] Regional Concentration - Zhejiang, Shandong, and Hebei together account for 75% of the total desalination capacity in China, highlighting a significant regional concentration in the industry [6] Growth Trends - In 2023, five provinces saw growth in desalination capacity, with Fujian leading at a 26% increase, followed by Shandong at 18%, and Guangdong at 10% [9] Technology Utilization - The predominant technology used in desalination projects includes reverse osmosis, which accounts for approximately 66% of the total capacity, while low-temperature multi-effect and multi-stage flash technologies account for about 32% and 0.2%, respectively [11]