About Waste Management in Ano Liossia: Do you need Waste and Sewage Management? Find the ideal Waste and Sewage Management company in the Ano Liossia area to manage waste and sewage easily, quickly, and safely. See why you should ... choose one of the following waste and sewage management companies in the Ano Liossia area. A company specializing in waste and sewage management can: guarantee safe transport of sewage and industrial waste, handle processing of sewage, solid waste, and liquid waste, and finally offer – if needed – biological unit cleaning, non-hazardous sewage collection and hazardous waste collection, as well as waste analyses.