Core Insights - The Nantong Hongjiang wastewater treatment plant's tailwater wetland project, constructed by Suzhou Urban Investment Environment Company, has successfully passed inspection and is now operational [1][2] Group 1: Project Overview - The project is located on the east side of the tailwater discharge outlet of the Nantong Hongjiang wastewater treatment plant, covering an area of approximately 19,000 square meters, with a designed tailwater treatment capacity of 47,000 tons per day [1] - The wetland consists of three core components: biochemical ecological pool, surface flow wetland, and anti-siltation subsurface flow wetland, which work together to achieve efficient water purification [1] Group 2: Technological Innovations - The biochemical ecological pool has been optimized from traditional ecological pond technology, enhancing its processing capacity by over five times compared to conventional wetlands, allowing it to quickly adapt to varying water load changes [1] - The anti-siltation subsurface flow wetland employs ultra-fine fiber carriers to effectively remove sewage impurities, addressing the issue of wetland system siltation, while precise aeration facilitates repeated biochemical treatment, significantly degrading common pollutants in the water ecosystem [1] Group 3: Environmental Impact - After the wetland's operation, organic matter, nitrogen, phosphorus, and other pollutants in the treated tailwater will be effectively removed through the synergistic purification action of native microorganisms and aquatic plants such as yellow flag iris and water caltrop, ensuring that the effluent meets Class IV surface water standards before entering the Yangtze River [2] - The entire purification process relies solely on natural forces without the addition of chemical agents, achieving deep purification of tailwater and regional ecological conservation [2] Group 4: Company Background - Suzhou Urban Investment Environment Company has successfully developed several ecological water environment projects, including the Taicang Port City Group wastewater treatment plant's ecological wetland project, recognized as a benchmark project under the Yangtze River protection strategy [2] - Another significant project, the Yangcheng Lake aquatic vegetation restoration and long-term operation management project, is the first ecological restoration project targeting open functional lakes in the province, utilizing an innovative "seed bank + plant" model to create a "submerged forest" that enhances water quality and environmental capacity [2]