Utilization of Tannery Wastewaters Sludge Ash in Waterproofing Membrane: A Technical and Environmental Feasibility Study

Monica Puccini; Maurizia Seggiani; Domenico Castiello; Sandra Vitolo

doi:10.4028/www.scientific.net/AMR.849.397

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 849Utilization of Tannery Wastewaters Sludge Ash in...

Utilization of Tannery Wastewaters Sludge Ash in Waterproofing Membrane: A Technical and Environmental Feasibility Study

Abstract:

Sludge from tannery effluent treatment processes is a by-product of leather-making industry, in which chrome compounds are the most common used materials. The objective of this work was to investigate the effects and feasibility in the use of tannery sludge ash as a partial or total replacement of usual mineral filler such as in manufacture of waterproofing membranes. The effects of sludge ash on the morphology and mechanical properties of membranes were investigated. Leaching tests were carried out in order to guarantee that the fulfilment of filler function was done in respect with environmental criteria. Besides, a Life Cycle Assessment (LCA) analysis was performed in order to assess the environmental performance of the waterproofing membrane filled by tannery sludge ash in comparison with the conventionally filled membrane. The performances of the membranes and the results of environmental assessment indicate that tannery sludge ash may be used as total replacement of CaCO₃ for waterproofing membranes.

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Periodical:

Advanced Materials Research (Volume 849)

Pages:

397-404

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.849.397

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Online since:

November 2013

Authors:

Monica Puccini*, Maurizia Seggiani, Domenico Castiello, Sandra Vitolo

Keywords:

Bituminous Waterproofing Membrane, Environmental Performance, Tannery Sludge Ash

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