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Book Chapter

Laboratory characterization and pilot site tests of residual sludge from dimension stones for civil and environmental applications

By
Giovanna Antonella Dino
Giovanna Antonella Dino
Earth Sciences Department, University of Turin, Via Valperga Caluso, 35 – 10125, Turin Italy
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Manuela Lasagna
Manuela Lasagna
Earth Sciences Department, University of Turin, Via Valperga Caluso, 35 – 10125, Turin Italy
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Paolo Clemente
Paolo Clemente
Earth Sciences Department, University of Turin, Via Valperga Caluso, 35 – 10125, Turin Italy
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Domenico Antonio De Luca
Domenico Antonio De Luca
Earth Sciences Department, University of Turin, Via Valperga Caluso, 35 – 10125, Turin Italy
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Published:
January 01, 2016

Abstract

Residual sludge from dimension-stone working plants, both from gangue saws with abrasive shot and frame saws, is classified as waste and presents a number of problems for the stone industry. These problems include a fine size distribution, heavy metals and total petroleum hydrocarbon (TPH) content, all of which impede recovery and reuse. Residual sludge, management of which is administered in accordance with the Italian Legislative Decree 152/06, can be used in waste form for environmental restoration or for cement plants. However, it is also possible that sludge applications could go beyond these limited uses with incorporation of systematic treatment for the production of secondary raw materials (SRM), for example, filler, or for ‘new products’, for example, artificial loam. Such new products or SRM have to be certified not only on the basis of their technical and physical characteristics but also by means of appropriate chemical analyses to guarantee that the products are not contaminated.

This paper outlines the results from laboratory and in situ characterization of residual sludge. In particular, three potential applications of sludge either by itself or mixed with other materials were evaluated: landfill waterproofing material, filler material for civil works and artificial soil for land rehabilitation.

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Contents

Geological Society, London, Special Publications

Sustainable Use of Traditional Geomaterials in Construction Practice

R. Přikryl
R. Přikryl
Charles University in Prague, Czech Republic
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Á. Török
Á. Török
Budapest University of Technology and Economics, Hungary
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M. Gomez-Heras
M. Gomez-Heras
Institute of Geosciences (CSIC, UCM), Spain
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K. Miskovsky
K. Miskovsky
Envix Nord AB, Sweden
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M. Theodoridou
M. Theodoridou
University of Cyprus, Cyprus
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Geological Society of London
Volume
416
ISBN electronic:
9781862397187
Publication date:
January 01, 2016

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