Secretary for the Environment KS Wong met officials and inspected waste-management facilities in Copenhagen yesterday.
He called on Copenhagen Technical & Environmental Mayor Morten Kabell and Denmark's Minister of the Environment Kirsten Brosbol.
He was briefed on the development of the Amager Bakke Waste-to-Energy Plant project, which will employ moving-grate technology to treat 1,500 tonnes of waste per day when it is commissioned in 2017.
He then addressed a luncheon meeting, and met with Hong Kong students studying in Denmark.
Mr Wong later visited the newly commissioned Roskilde Waste-to-Energy Plant, which provides electricity, heating and cooling processes to suit the community's needs in different seasons.
Mr Wong will visit Sweden tomorrow.