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Jiangsu Offshore Wastewater Removal Phosphorus and Nitrogen Removal Technology
A research initiative aimed at providing technical support for the modernization of the Taihu Lake Sewage Treatment Plant has recently been fully launched. The main objective of the project is to address challenges related to phosphorus and nitrogen removal, which are critical in improving water quality in the region. To facilitate this effort, the Jiangsu Provincial Government has allocated over 20 million yuan in special funding. The findings from this research, expected to be completed by the end of June this year, will serve as a reference for bidding processes in both existing and new wastewater treatment facilities.
In line with national and provincial regulations on water pollution control in the Taihu Lake area, Jiangsu Province is required to implement dephosphorization and denitrification upgrades at 139 existing and 30 under-construction sewage treatment plants by the end of 2008. These upgrades involve processing 3.6 million tons of wastewater per day, requiring an investment of approximately 2.7 billion yuan. Given that this initiative is at the forefront of national efforts, many existing plants use different technologies and processes, leading to inconsistencies in performance and economic efficiency. Therefore, the provincial government has funded 10 key research projects to explore optimal solutions.
Within this framework, researchers have focused on identifying the sources of nitrogen and phosphorus pollutants in incoming wastewater, as well as evaluating ecological treatment methods. Wuxi City, known for its extensive experimentation in sewage treatment, has taken a leading role in this area, particularly in artificial wetland projects. As a result, nine out of the ten projects targeting existing treatment plants were awarded to Wuxi. Currently, all these projects are in the reporting phase.
The outcomes of this research will provide comprehensive data on various treatment options, along with cost and energy consumption estimates, which will be crucial for the renovation of over 100 wastewater treatment plants in the Taihu Lake Basin later this year. This initiative not only supports environmental protection but also sets a benchmark for sustainable wastewater management in China.