Chemical Characterisation of Construction and Demolition Waste in Skopje City and Its Surroundings (Republic of Macedonia)

Autor: Gianluca Bianchini, Andrea Ferraboschi, Chiara Marchina, Igor Ristovski, Gian Marco Salani, Alojz Zupac, Valentina Brombin, Igor Milcov, Claudio Natali
Rok vydání: 2020
Předmět:
010506 paleontology
Geography
Planning and Development
TJ807-830
Republic of Macedonia
recycling
010501 environmental sciences
Management
Monitoring
Policy and Law
Raw material
TD194-195
PE10_10
01 natural sciences
Renewable energy sources
Construction and demolition
waste
Republic of Macedonia
chemical characterisation
recycling
heavy metals
tolerance limit
Construction and demolition
chemical characterisation
GE1-350
waste
Leachate
heavy metals
Inductively coupled plasma mass spectrometry
0105 earth and related environmental sciences
tolerance limit
High concentration
d waste
Environmental effects of industries and plants
Waste management
Renewable Energy
Sustainability and the Environment
Ambientale
Building activity
Heavy metals
c&
Environmental sciences
Demolition waste
Demolition
C and D waste
Chemical characterisation
Recycling
Republic of macedonia
Tolerance limit
Environmental science
Zdroj: Sustainability, Vol 12, Iss 5, p 2055 (2020)
ISSN: 2071-1050
DOI: 10.3390/su12052055
Popis: In the Republic of Macedonia, construction and demolition (C&D) waste is often dumped, underestimating the potential recycling and re-use as raw materials for civil engineering works and/or cement/ceramic industries. SAMCODE (Sustainable Approach to Managing Construction and Demolition Waste) is a know-how exchange program, the focus of which is chemical characterisation in terms of major and trace elements in order to evaluate the possible Macedonian C&D waste recycling. Thirty-nine C&D waste samples were collected from different dumps in Skopje and surroundings. X-ray fluorescence analyses, carried out on powdered samples, show i) highly variable concentrations, indicative of the heterogenous nature of C&D waste, and ii) high concentration in Cr, Ni, and Zn with respect to Italian, Chinese, and Dutch tolerance limits, probably due to the presence of these elements in ophiolitic rocks and sulphide-bearing deposits, used as raw material in building activity. Inductively coupled plasma mass spectrometry analyses of leachates, performed to assess the mobility of heavy metals, show significant concentrations of Cr, and to a lesser extent, Ni. Results suggest that homogenisation processes of the recycled materials should be implemented and preliminary screening of C&D waste should be performed to eliminate heavy metals-bearing components.
Databáze: OpenAIRE
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