Journal ArticleDOI
An Integrated Framework for Evaluating Leaching in Waste Management and Utilization of Secondary Materials
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A tiered approach is provided to allow the end user to balance between the specificity of the release estimate, the amount of testing knowledge required, a priori knowledge, and resources required to complete an evaluation.Abstract:
A framework for the evaluation of inorganic constituent leaching from wastes and secondary materials is presented. The framework is based on the measurement of intrinsic leaching properties of the material in conjunction with mathematical modeling to estimate release under field management scenarios. Site-specific and default scenarios are considered, which may be selected based on the evaluation context. A tiered approach is provided to allow the end user to balance between the specificity of the release estimate, the amount of testing knowledge required, a priori knowledge, and resources required to complete an evaluation. Detailed test methodologies are provided for a suite of laboratory leaching tests.read more
Citations
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Journal ArticleDOI
Immobilisation of heavy metal in cement-based solidification/stabilisation: a review.
TL;DR: It is concluded that further research on the phase development during cement hydration in the presence of heavy metals and thermodynamic modelling is needed to improve effectiveness of cement-based s/s and extend this waste management technique.
Journal ArticleDOI
The leaching of major and trace elements from MSWI bottom ash as a function of pH and time
TL;DR: In this article, the leaching behavior of major components (Al, Ca, SO 4, Mg, Si, Fe, Na and DOC) and trace elements (Ni, Zn, Cd, Cu, Pb, Mo and Sb) from MSWI bottom ash is studied as a function of time over a wide range of pH, under pH-controlled conditions.
Journal ArticleDOI
Review of leaching behavior of municipal solid waste incineration (MSWI) ash.
TL;DR: This review summarizes extensive studies on leaching behavior of municipal solid waste incineration ash, pollutants generated through leaching, factors governingLeaching, methodologies to study leach, leaching mechanisms, and treatments to reduce leaching.
Journal ArticleDOI
The effects of alkaline dosage and Si/Al ratio on the immobilization of heavy metals in municipal solid waste incineration fly ash-based geopolymer
Lei Zheng,Wei Wang,Yunchun Shi +2 more
TL;DR: IR spectra showed that higher alkaline activator dosage enhanced the structural disruption of the original aluminosilicate phases and a higher degree of polymerization of the geopolymer networks, which suggests that the soluble silicon content serves to reduce the amount of geopolymers.
Journal ArticleDOI
Combined use of MSWI bottom ash and fly ash as aggregate in concrete formulation: environmental and mechanical considerations.
TL;DR: The experimental results obtained after casting concrete formulated with different mix proportions of municipal solid waste incineration by-products, bottom ash (BA) and air pollution control fly ash (APCFA), as aggregates, can be concluded that these concrete mix proportions are suitable for use as non-structural concrete.
References
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Book
The mathematics of diffusion
TL;DR: Though it incorporates much new material, this new edition preserves the general character of the book in providing a collection of solutions of the equations of diffusion and describing how these solutions may be obtained.
Journal ArticleDOI
Sequential extraction procedure for the speciation of particulate trace metals
TL;DR: In this paper, an analytical procedure involving sequential chemicai extractions was developed for the partitioning of particulate trace metals (Cd, Co, Cu, Ni, Pb, Zn, Fe, and Mn) into five fractions: exchangeable, bound to carbonates, binding to Fe-Mn oxides and bound to organic matter.
Journal ArticleDOI
Ion binding to natural organic matter : competition, heterogeneity, stoichiometry and thermodynamic consistency
David G. Kinniburgh,Willem H. van Riemsdijk,Luuk K. Koopal,Michal Borkovec,Marc F. Benedetti,Marcelo Javier Avena +5 more
TL;DR: The NICCA-Donnan model as mentioned in this paper is a semi-empirical model that is similar to the NICA-donnan model except that it introduces an additional degree of scaling that ensures thermodynamic consistency and allows for variable stoichiometry of binding, which implicitly accounts for the large degree of chemical heterogeneity of humic particles.
Book
Municipal Solid Waste Incinerator Residues
TL;DR: In this article, the authors present a detailed analysis of municipal solid waste incineration technologies, including bottom ash, chemical and physical aspects of leaching, as well as air pollution control residues.
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