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江苏超8000公里管道“换新装” 1963平方公里海绵城市“织绿网”节水 从管网堵漏到污水“重生”
Xin Hua Ri Bao·2025-05-14 23:22

Core Viewpoint - The article discusses Jiangsu's innovative approaches to water conservation amidst its inherent water resource scarcity, focusing on technological and institutional advancements to enhance water efficiency and sustainability [1]. Group 1: Water Supply Network Management - Jiangsu is implementing strict measures to control water supply network leakage, with over 8,000 kilometers of pipeline upgrades completed since the 14th Five-Year Plan [2]. - The goal is to reduce the urban public water supply network leakage rate to below 7.5% by 2024 [2]. - The city of Suqian has developed a smart water management platform that utilizes IoT devices for real-time monitoring, significantly improving leak detection and repair times, reducing average response time from 9 hours to 6 hours [2][3]. Group 2: Sponge City Construction - The construction of sponge cities is a key strategy for improving rainwater collection and utilization, with 1,963.99 square kilometers of sponge city area established, accounting for 35.48% of Jiangsu's urban built-up area by the end of 2024 [4]. - The sponge city initiative aims to enhance urban infrastructure and promote efficient water resource use, with projects including rainwater collection facilities in new commercial and residential buildings [4][5]. - The implementation of sponge city concepts is expected to alleviate urban flooding and improve water quality in rivers and lakes [5]. Group 3: Wastewater Reuse - The city of Jurong has successfully integrated wastewater reuse with river water quality improvement, injecting 25,000 tons of treated water daily into the Yuqing River, enhancing its ecological health [6]. - The province is promoting the use of reclaimed water from sewage treatment plants, with a projected urban reclaimed water utilization rate of approximately 29% by 2024 [7]. - Efforts are being made to prioritize the use of reclaimed water for landscaping and road maintenance, reducing reliance on potable water [7].