The management of sewage sludge, generated within the process of treatment of wastewater, is a problem of great concern in the world. Given that sludge contains organic compounds such as antibiotics and pathogenic organisms, its random discharge without any treatment can cause a serious pollution to soil, air and water. Search for environmental and cost-effective sludge processing solutions whilst responding to environmental regulatory requirements has become one of key issues for wastewater industry and public administrations worldwide.
OSCAR PROJECT aims to demonstrate a disruptive solution representing a radical change to the techniques currently used for the sludge processing & elimination. An innovative and effective implementation of wet oxidation that allows to eliminate pollutant organic matter and transform sludge into inert water. OSCAR® attains to convert sludge into clean inert water by eliminating up to 99% of toxic organic matter including emerging contaminants and microplastics, and 100% microorganisms (bacteria and viruses) from the sludge effluent without generating any pollution, and consequently reduces the volume of disposed organic sludge dry matter down to 0%. It is achieved cost savings thanks to eliminating expensive steps required for waste pre-processing (among other, anaerobic digestion, dewatering), sludge disposal and to valorising process by-products (Phosphor regeneration, energy recovery…) resulting in operating expenses reduction. A pre-industrial prototype of OSCAR® is being tested in Segovia WWTP (Spain) since 2018, and its good results will be showed.
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