Environmental impacts, management and potential recovery of residual sludge from the stone industry: The piedmont case

L. Zichella, G.A. Dino, R. Bellopede, P. Marini, E. Padoan and I. Passarella

Resources Policy, 2020, vol. 65, issue C

Abstract: The management of residual sludge from dimension stone processing activities (EWC 010,413) represents a large concern for stone industry. Such sludges are characterised by a fine size distribution, high heavy metal contents and, potentially, TPH (Total Petroleum Hydrocarbon) contents. The objects of the present study are represented by gang-saw with abrasive shot (GSS), diamond frame-saw (DSS) and mixed (MS) sludges. The first one is high in Cr, Ni, Cu and TPH, the second presents high contents in Co, Cr and TPH, and the third represents a mix of the first two ones. Present legislation indicates that they can be disposed of in landfills or can be recovered (R5-R10) as filling material for environmental rehabilitation or as feeding materials for cement production.

Keywords: Residual sludge; Dimension stone industry; Environmental impacts; Circular economy; Secondary raw materials; Recycled products (search for similar items in EconPapers)
Date: 2020
References: View complete reference list from CitEc
Citations: View citations in EconPapers (2)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:jrpoli:v:65:y:2020:i:c:s0301420719303642

DOI: 10.1016/j.resourpol.2019.101562

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