RONSAS - “Experimentation of in-line defecation plaster production in Barletta and Foggia sewage treatment plants and their use in Puglia” - is a research and development project funded by the Regional Operational Program (ROP) Puglia 2014-2020, under Axis VI - Action 6.4.
The project aims to evaluate the techno-economic feasibility of an innovative in-line treatment system, through hydrolysis of biological sludge before the digestion treatment.
Through this process, involving the addition of lime and sulfuric acid, the sludge is transformed into the so-called “defecation plaster,” a bio-sulfate that is recognized by current regulations as a corrective fertilizer for agricultural soils.
The project also plans to verify not only that the bio-sulfate produced has chemical characteristics that comply with current regulations, but also to evaluate its effectiveness on soils and certain plant species.