A | （ECNS） -- A 4,285-meter canal carved into a karst cliff in southwest China’s Chongqing has become a social media sensation, attracting photographers and hikers to Qianjin village in Wulong district. Nearly 1,000 meters of the canal runs flush against a precipice hundreds of meters high, with spring water still trickling through its channels. Villagers began hacking the waterway out of solid rock in 1999 using chisels and hammers, completing it three years later to bring water and electricity to mountain communities. From lifeline to hiking destination As modern irrigation improved, the canal’s role faded, but its dramatic setting has turned it into a magnet for outdoor enthusiasts. "The trickling sound of spring water runs on one side and a green canyon on the other. It was well worth the trip," said Liu Zhengchun, a hiking enthusiast from Chongqing, who came with friends after watching videos shared by bloggers on social media. He noted that the narrowest section of the canal is barely wide enough for one person to pass by bending forward, and that the chisel marks left by the builders remain clearly visible on the rock face. A waterfall near a hydropower station along the route has also become a highlight. Builder-turned-guardian Builder Li Wufeng, now in his 60s, continues to maintain the canal and volunteers as a safety monitor as visitor numbers grow. "In the past, I was basically the only person walking on the canal," Li said. "Now more and more young people come to explore, hike and take photos. On peak days, I can run into more than 200 visitors." Local government eyes tourism development As the site's popularity grows, authorities are paying increasing attention to outdoor safety and ecological protection. Local officials are planning a loop-shaped scenic area that integrates sightseeing, experiential activities and leisure, with supporting facilities including a parking structure, a visitor center, cliffside plank roads and a glass observation deck. The goal is to give the cliffside canal, once a hard-won lifeline for a mountain village, a renewed purpose in the era of cultural tourism. 
。 上海8月26日电 (梁钦锋 高志苗)记者26日从华东理工大学获悉，由该校洁净煤技术研究所教授王辅臣领衔的科研团队，联合中石化宁波镇海炼化有限公司、中石化宁波工程有限公司、中石化宁波技术研究院有限公司等经过多年产学研协同攻关，研发的“重质油气化集成废液协同处理成套技术”，近日通过中石化组织的成果鉴定。 鉴定委员会认为，项目整体技术达到国际领先水平，为国内炼化行业重质残渣资源化利用开辟国产化全新道路。 重油、渣油和炼厂废弃物等的高效低碳转化是石油炼制领域亟待攻克的行业难题。为破解产业痛点，华理洁净煤技术研究所团队发挥高校基础理论科研优势，与中石化多家单位组建产学研攻关团队，深耕核心技术创新，突破多项关键技术壁垒，成功开发了重质油气化集成废液协同处理成套技术。 据了解，该技术在镇海炼化建成了27万标准立方米的重质油制氢示范装置，于2025年1月一次投料成功，目前已进入长周期稳定运行阶段。装置于2025年11月通过了中石化组织的满负荷性能考核，碳转化率99.5%，三废排放指标先进。 据了解，该成套技术为大型炼厂制氢、合成气生产开辟全新技术路径，为石化行业提质增效、绿色低碳转型、助力实现“双碳”目标提供了核心技术支撑。目前已成功许可应用于上海石化、茂名石化等新建重点项目，应用场景广泛、市场竞争力突出，经济与社会效益十分显著。
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