Analysis of the technical and environmental feasibility of producing pellets from water treatment plant sludge.

• Grant number: 26/08267-6
• Support Opportunities: Scholarships in Brazil - Scientific Initiation
• Start date: May 01, 2026
• End date: April 30, 2027
• Field of knowledge: Engineering - Sanitary Engineering - Basic Sanitation
• Principal Investigator: Fabiana Alves Fiore Pinto
• Grantee: Arthur Capelazo Lopes Queiroz
• Host Institution: Instituto de Ciência e Tecnologia (ICT). Universidade Estadual Paulista (UNESP). Campus de São José dos Campos. São José dos Campos , SP, Brazil
• Company: Universidade Estadual Paulista (UNESP). Campus de São José dos Campos. Instituto de Ciência e Tecnologia (ICT)
• Associated research grant: 20/12230-4 - Determination of technological requirements for adequation of the physical and chemical properties of water treatment plant sludge, for beneficial use in earth work, AP.PITE

Abstract

The management of sludge generated at water treatment plants (WTPS) presents a significant environmental challenge, particularly due to its high moisture content, complex composition and the limitations associated with its final disposal. In this context, strategies aligned with the principles of the circular economy have been proposed with a view to reusing this waste as a raw material for new products. The study aims to assess the technical and environmental feasibility of producing pellets from previously dewatered WTPS. The proposal involves transforming the solid waste into a granular material with potential for use as a pollutant adsorbent in water and wastewater treatment systems. To this end, the drying stages, material preparation, addition of binders and compaction will be investigated, in addition to the physico-chemical characterisation of the pellets obtained. In addition, tests will be carried out to assess the material's performance in removing phosphorus from aqueous solutions, as well as analyses to discuss its environmental viability. It is hoped that the results will contribute to the development of sustainable solutions for the management of WTPS, adding value to a widely generated waste stream and promoting its reintegration into environmental applications. (AU)