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PURE aims at sustainable sludge handling

Enhanced phosphorus removal is connected to the quantity and the quality of the sludge produced in wastewater treatment plants. For instance, if phosphorus is chemically precipitated from the wastewater, the amount of sludge increases by the amount of chemicals used for the precipitation. On the other hand, in biological phosphorus removal processes, it is essential to make sure, that the phosphorus bound in the sludge will not be released back in water.

It is important prevent nutrients bound in wastewater sludge from ending up to water bodies. Many wastewater treatment plants have some difficulties in their sludge disposal. The problems vary from the lack of machinery or chemicals to dewater or thicken the sludge to reduced usability of metal-polluted sludge on agriculture soils.

PURE spreads information on innovative and effective ways to handle sewage sludge and aims to find new solutions to sludge-related problems in PURE partner cities. The current state of the art and challenges in sludge handling in PURE partner wastewater treatment plants will be analysed. The existing good practices of sludge handling are mapped and presented to PURE partners, who can use this information while making plans for their future sludge handling.

The best practices in sludge handling are gathered and published in:

Other links: