Comparison between laboratory and field leachability of MSWI bottom ash as a road material.

The leaching properties of bottom ash from municipal solid waste incineration (MSWI) used as an aggregate substitute in unbound pavement layers are evaluated. The mechanical behaviour of bottom ash is acceptable for this application, but the potential environmental consequences constitute the most important limitation on the use of bottom ash as a road material. The environmental properties of bottom ash are assessed by means of the Dutch availability test NEN 7341 and the single-batch and two-stage batch European EN 12457 laboratory leaching tests. Furthermore, an experimental unbound pavement stretch is constructed to provide information on leaching behaviour under field conditions. In this high infiltration scenario, the results from predicted (based upon laboratory leaching tests) and measured releases (under field conditions) are compared, evidencing that predictions based on compliance leaching tests may be highly realistic. The depletion period of the extractable fraction of a number of elements in these field conditions is also quantified.

[1]  Ferran Rodà,et al.  Assessing decadal changes in rainwater alkalinity at a rural Mediterranean site in the Montseny Mountains (NE Spain) , 2002 .

[2]  V. Bruder-Hubscher,et al.  Application of a sequential extraction procedure to study the release of elements from municipal solid waste incineration bottom ash , 2002 .

[3]  J.J.J.M Goumans,et al.  Environmental Aspects Of Construction With Waste Materials , 1994 .

[4]  J. Rogbeck,et al.  Ash gravel — A material for recycling , 1996 .

[5]  J. Meima,et al.  Complexation of Cu with Dissolved Organic Carbon in Municipal Solid Waste Incinerator Bottom Ash Leachates , 1999 .

[6]  Michael Zwicky Hauschild,et al.  Environmental assessment of roads constructed with and without bottom ash from municipal solid waste incineration , 2006 .

[7]  Ch.F. Hendriks,et al.  Verification of laboratory–field leaching behavior of coal fly ash and MSWI bottom ash as a road base material , 2000 .

[8]  H. A. van der Sloot,et al.  Systematic Leaching Behaviour of Trace Elements from Construction Materials and Waste Materials. , 1991 .

[9]  J. Meima,et al.  The leaching of trace elements from municipal solid waste incinerator bottom ash at different stages of weathering , 1999 .

[10]  Ole Hjelmar,et al.  Utilisation of MSWI bottom ash as sub-base in road construction: first results from a large-scale test site. , 2007, Journal of hazardous materials.

[11]  M Reid.  ALT-MAT: ALTERNATIVE MATERIALS IN ROAD CONSTRUCTION , 1998 .

[12]  O. Hjelmar,et al.  Municipal Solid Waste Incinerator Residues , 1997 .

[13]  Knud A. Pihl.  The Application of Incinerator Bottom ASH in Road Construction , 1997 .

[14]  T. Taylor Eighmy,et al.  Carbonation processes in municipal solid waste incinerator bottom ash and their effect on the leaching of copper and molybdenum , 2002 .

[15]  Maria Izquierdo,et al.  Characterisation of bottom ash from municipal solid waste incineration in Catalonia , 2002 .

[16]  A. Fällman,et al.  Significance in the results of total composition and potential leachability of screened MSWI BA from different plants and sampling periods , 2000 .

[17]  H. A. van der Sloot,et al.  The Influence of Reducing Properties on Leaching of Elements from waste Materials and Construction Materials , 1994 .

[18]  J. Donald Rimstidt,et al.  Mineralogy and Surface Properties of Municipal Solid Waste Ash , 1993 .

[19]  Xavier Querol,et al.  Geological controls on the mineralogy and geochemistry of the Beypazari lignite, central Anatolia, Turkey , 1997 .

[20]  Jurate Kumpiene,et al.  Evaluation and prediction of emissions from a road built with bottom ash from municipal solid waste incineration (MSWI). , 2006, The Science of the total environment.

[21]  Andrea Ulrich,et al.  Hydrological and geochemical factors affecting leachate composition in municipal solid waste incinerator bottom ash. Part II. The geochemistry of leachate from Landfill Lostorf, Switzerland , 1999 .

[22]  V. Bruder-Hubscher,et al.  Utilisation of bottom ash in road construction: evaluation of the environmental impact , 2001, Waste management & research : the journal of the International Solid Wastes and Public Cleansing Association, ISWA.

[23]  F.J.M. Lamers,et al.  Upgrading Techniques for the Quality Improvement of Municipal Waste Incineration Residues , 1994 .

[24]  Maria Izquierdo Ramonet.  Valorització d'escòries d'incineració de residus sòlids urbans en capes granulars del ferm. Aplicació al tram experimental de Tagamanent , 2005 .

[25]  J. M. Chimenos,et al.  Characterization of the bottom ash in municipal solid waste incinerator , 1999 .

[26]  T. Taylor Eighmy,et al.  Petrogenesis of municipal solid waste combustion bottom ash , 1999 .

[27]  S Lidelöw,et al.  Evaluation of leachate emissions from crushed rock and municipal solid waste incineration bottom ash used in road construction. , 2007, Waste management.

[28]  T. Taylor Eighmy,et al.  An approach for estimation of contaminant release during utilization and disposal of municipal waste combustion residues , 1996 .

[29]  D. Guyonnet,et al.  Chemical changes and leachate mass balance of municipal solid waste bottom ash submitted to weathering. , 2002, Waste management.