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Jiangsu Offshore Wastewater Removal Phosphorus and Nitrogen Removal Technology
A major initiative has recently kicked off to provide technical support for the upgrade of the Taihu Lake Sewage Disposal Plant. This project focuses on improving phosphorus and nitrogen removal technologies, which are critical for reducing water pollution in the region. The Jiangsu Provincial Government has allocated over 20 million yuan in special funds to ensure the success of this effort. Research outcomes completed by the end of June will serve as a reference for bidding processes in both existing and new wastewater treatment plants across the area.
In line with national and provincial requirements for controlling water pollution in the Taihu Lake Basin, Jiangsu plans to implement dephosphorization and denitrification upgrades at 139 existing and 30 under-construction municipal wastewater treatment plants by the end of 2008. This ambitious project involves an investment of approximately 2.7 billion yuan to handle 3.6 million tons of wastewater per day. Given that this work is at the forefront of the country, many existing facilities use outdated processes, and their technical approaches and economic indicators are not yet fully optimized. To address these challenges, the provincial government has launched 10 research topics focusing on the sources of nitrogen and phosphorus pollutants in influent water, as well as the development of ecological treatment technologies.
Wuxi City has been leading the way in conducting extensive experiments on phosphorus removal, denitrification, and ecological treatment methods. As a result, its artificial wetland projects are among the most advanced in the region. Out of the nine projects targeting existing sewage treatment plants, six were initiated from Wuxi. Currently, all these research topics have entered the reporting phase, and the findings will provide valuable data on various technical options, along with cost and energy consumption estimates, to guide the reconstruction of more than 100 wastewater treatment plants in the Taihu Lake Basin during the second half of the year.