The joint venture team of ATAL Environmental Engineering, Degremont and China Harbour Engineering more than doubled the size of the San Wai Sewage Treatment Plant in a rural area just outside of Hong Kong to accommodate the city’s expanding development.
The scope of work for the $400-million design-build-operate venture included designing and building new treatment facilities capable of processing nearly 500,000 cu meters per day at the existing 164,000 cu/md day plant with ultraviolet disinfection before discharge through an existing tunnel to Deep Bay, 30 km outside of the city. Work on the project began in May 2016 and wrapped up in March 2021.