At what is now the world’s largest water treatment plant, SPIRAC has supplied 2km (1.24 miles) of shaftless spiral conveyors for moving sludge to and from the sludge drying areas. The $739M (£609M), 5 ...

Transporting household and industrial waste as well as sewage sludge from a treatment plant to a power station can be a messy business. The utility company Linz AG found that a pipe conveyor system ...