Environmental Management
Climate Change Mitigation and Adaptation 
As early as 2007, the HKSAR Government established the Inter-departmental Working Group on Climate Change, which is led by the Environment Bureau and comprises representatives from 16 departments including DSD which plays a vital role in helping Hong Kong adapt to and mitigate climate change.
In support of the “Hong Kong's Climate Action Plan 2030+”, a roadmap issued by the Government in 2017 that encourages the public sector to spearhead the extensive use of renewable energy, DSD has planned to install the second CHP generator in the Shatin STW to fully utilise biogas produced from sludge treatment process. In addition, DSD will implement the Food Waste and Sewage Sludge Anaerobic Co-digestion Pilot Trialot at Tai Po STW to produce more biogas and hence renewable energy.
We have also put in place a trigeneration system in the Shatin STW to utilise the waste heat produced by CHP generators for cooling. PV panels have also been installed in 23 STWs and SPSs, in a bid to utilise the open space in our plants to harness solar energy as far as practicable. DSD will continue to explore more opportunities for utilising renewable energy in our facilities.
To address global challenges arising from climate change, we maintain close connection with other cities and regions. DSD is a member of Connecting Delta Cities, a subsidiary of the international organisation C40 Cities Climate Leadership Group, and represents the HKSAR Government to exchange views and experience on flood prevention with other delta cities. DSD is also a member of the Hong Kong/Guangdong Joint Liaison Group on Combating Climate Change. Representatives of the Guangdong Provincial Government visited DSD in 2016 to exchange proven experience in drainage system planning.
