Henriksdal WWTP Sludge treatment project, Sweden

Henriksdal waste water treatment plant is the largest sewage treatment plant in Sweden, the largest blasting rock sewage treatment plant in Europe, and one of the most modern sewage treatment plants in the world, handling approximately 250,000 cubic meters of sewage per day. The sludge from sewage treatment is anaerobically digested, and the biogas produced is upgraded into natural gas for vehicles, which is supplied to Stockholm buses.

This project adopts the engineering contracting mode, Purac is responsible for the engineering design and equipment supply of all 7 digestion tanks.