青岛风河生态运动公园主体结构封顶 系山东最大全地埋式污水处理厂

Core Viewpoint - The Qingdao Fenghe Ecological Sports Park project has reached the main structure topping, representing Shandong's largest underground sewage treatment plant, integrating ecological and recreational spaces with modern wastewater treatment capabilities [1][3]. Group 1: Project Overview - The project features an innovative design combining an ecological wetland, sports, leisure, and cultural experiences over a thousand acres above ground, while housing a sewage treatment facility with a daily processing capacity of 300,000 tons underground [1][3]. - Located at the northern bank of the Fenghe River estuary in Qingdao's West Coast New Area, the project aims to meet the sewage treatment needs of a surrounding area of 112 square kilometers and supports Qingdao's "Park City" initiative [3]. Group 2: Treatment Process - The wastewater treatment process includes multiple stages: pre-treatment, rapid sedimentation, improved AAO biological pool, secondary sedimentation, high-efficiency sedimentation, deep bed filtration, ultraviolet treatment, and ozone catalytic oxidation [3]. - Treated water will be reused for irrigation in the above-ground park, promoting water resource recycling [3]. Group 3: Construction Challenges and Solutions - The project faced challenges such as complex coastal geology and high water levels during construction [3]. - The construction team employed a "pile anchor + soil nail wall" support technology for deep foundation protection and developed a "reverse plug" device to address slurry loss during anchor cable construction [3]. Group 4: Environmental Protection Measures - The construction team prioritized ecological protection by setting up temporary uplift dams and interception ditches in the reed wetland environment [3]. - A 200 cubic meter reclaimed water system was established to treat construction wastewater for onsite dust control, achieving both economic and ecological benefits [3].