Wanhua Chemical Taozi Bay Circular Water Project Wins Zhan Tianyou Award
- The project received the China Civil Engineering Zhan Tianyou Award.
- It was built over nine years and comprises eleven sub‑projects integrated into a single circular system.
- The system closes the loop between wastewater, reclaimed water and sludge to enable resource recovery.
- Combined sludge fermentation power, photovoltaic solar and sewage‑source heat pumps cut CO₂ emissions by 56,620.75 tonnes per year.
Award recognition
The Taozi Bay Wastewater, Reclaimed Water and Sludge Circular Economy Demonstration Project, led by Wanhua Chemical, was awarded the China Civil Engineering Zhan Tianyou Award in recognition of its engineering quality, technological innovation and comprehensive social benefits.
Project scope and timeline
Developed over nine years, the project comprises eleven sub‑projects brought together into one integrated circular system that links wastewater treatment, reclaimed water reuse and sludge resource recovery.
Process and technology
The project pursued continuous process optimisation and technological upgrades, deploying advanced membrane treatment technologies and exploring pathways for the resource utilisation of large‑scale wastewater treatment facilities.
Energy integration and emissions
By combining sludge fermentation power generation, photovoltaic solar power and sewage‑source heat pump heating, the project coordinates resource recycling with energy use and achieves a CO₂ emissions reduction of 56,620.75 tonnes per year.
Source: Wanhua