Tianjin Dagang Desalination Plant, China

People’s Government of Tianjin City
Tianjin Dagang, China
Develop, design, build, own and operate on 30-year concession
100,000 m3/day
Highly Commended - Desalination Plant of the Year, Global Water Awards 2010

Tianjin Dagang Desalination Plant remains the largest membrane-based seawater desalination plant in China. The plant is an example of how innovative solutions have been employed to maximise operating and cost efficiencies and to minimise the environmental impact. The plant utilises our Kristal® ultrafiltration membranes for the pre-treatment process and a double pass reverse osmosis process to produce high-grade water for use by Tianjin’s petrochemical industries.

Site selection and plant design were critical considerations to ensure the plant’s continuous operation during the hard winter months of the north. The plant is located next to an operating power plant and draws its feedwater from the cooling water discharge of the power plant. With the intake water some 5°C warmer than ambient temperature, lower osmotic pressure is required during the treatment processes, resulting in lower energy consumption and cost savings.

The modular design of the plant allows for easy capacity expansion to meet any increase in demand for water.

Tianjin Dagang Desalination Plant supports the industrial growth in Tianjin City and is a secure and sustainable source of water to the region’s petrochemical hub.