Chloride extraction for quality improvement of municipal solid waste                 incinerator ash for the concrete industry

Boghetich, G.; Liberti, L.; Notarnicola, Michele; Palma, Maria Di; Petruzzelli, Domenico

doi:10.1177/0734242x05051017

Cited by 46 publications

(20 citation statements)

References 5 publications

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“…A simple water treatment is believed to be highly efficient considering the intrinsic characteristics of Cl and SO 4 being highly mobile in mediums such as water. Actually the washing process is already known to be economically feasible for both Cl (Boghetich et al, 2005) and SO 4 (Abbas et al, 2003). As the normal treatment processes used to remove the heavy metals and Al can be neglected, a Fig.…”

Section: Leaching Behaviormentioning

confidence: 99%

Characterization and application of municipal solid waste incineration (MSWI) bottom ash and waste granite powder in alkali activated slag

Gao

Yuan

et al. 2017

Journal of Cleaner Production

160

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Keywords:Municipal solid waste incineration bottom ash Granite powder Alkali activated slag Leaching Reactivity Carbon footprint a b s t r a c tIn this paper, the feasibility of using two solid wastes in alkali activated slag composites as construction and building materials is evaluated. One waste is the municipal solid waste incineration (MSWI) bottom ash, and the other one is fine granite powder from aggregate manufacturing. These two solid wastes are thoroughly characterized, and their effects on reaction process, gel composition, microstructure are investigated by isothermal calorimeter, TG/DSC, FTIR and SEM. Leaching properties and CO 2 footprint of some typical mixes are evaluated. The results indicate that both bottom ash and granite addition can be regarded as non-reactive phases. Micro scale analyses show no evident chemical involvement of both wastes on the gel structure of the reaction products. Bottom ash addition reduces the compressive strength, and granite powder presents a lower influence; 28 d strengths of around 20e70 MPa can be achieved depending on the replacement levels. Most of the mixtures pass the Dutch regulation for heavy metal leaching, while the excessive chlorides and sulfates contents can be easily treated by methods such as washing. The carbon emission is significantly reduced due to the negative impact of the waste solids, and this value can be further lower if bottom ash with larger sizes is used to replace coarse aggregates. Therefore, these two solid wastes present promising application potential based on the identified performances and sustainability.

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Section: Leaching Behaviormentioning

confidence: 99%

Characterization and application of municipal solid waste incineration (MSWI) bottom ash and waste granite powder in alkali activated slag

Gao

Yuan

et al. 2017

Journal of Cleaner Production

160

View full text Add to dashboard Cite

show abstract

“…The proposed treatment also removed the swelling of cement mortar, which was observed due to the mixing of untreated MSWI fly ash with cement [25]. Several other treatment methodologies were also proposed to remove deleterious components from the various types of MSWI ash samples [8,22,[26][27][28].…”

Section: Introductionmentioning

confidence: 99%

“…Therefore, prior treatment of MSWI ash is often necessary to decrease the concentrations or mobilities of hazardous components [1,4,8,13,22,23].…”

Section: Introductionmentioning

confidence: 99%

Pre-treatment of municipal solid waste incineration (MSWI) bottom ash for utilisation in cement mortar

Saikia

Mertens

Balen

et al. 2015

Construction and Building Materials

127

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“…In addition, the high content of chloride in the bottom ash can contribute to steel corrosion in the case of armoured concrete [20].…”

Section: Introductionmentioning

confidence: 99%

Evaluation of concrete production with solid residues obtained from fluidized-bed incineration of MSW-derived solid recovered fuel (SRF)

Collivignarelli

Abbà

Sorlini

et al. 2016

J Mater Cycles Waste Manag

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The aim of this work was to evaluate the use of solid residues derived from municipal solid waste-derived solid recovered fuel incinerated in a circulating fluidized-bed boiler for concrete production. The concrete mixtures casted by partially replacing the natural aggregates with bottom ash (27 %) and exhausted sand (13 %), according to the European standards for concrete, may be classified in the C16/20 class. The leaching tests performed on monolithic concrete samples showed that the concentrations measured in the leachates were lower than limit values for waste recovery, with the only exception of nickel for the mixture made with the exhausted sand

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Chloride extraction for quality improvement of municipal solid waste incinerator ash for the concrete industry

Cited by 46 publications

References 5 publications

Characterization and application of municipal solid waste incineration (MSWI) bottom ash and waste granite powder in alkali activated slag

Characterization and application of municipal solid waste incineration (MSWI) bottom ash and waste granite powder in alkali activated slag

Pre-treatment of municipal solid waste incineration (MSWI) bottom ash for utilisation in cement mortar

Evaluation of concrete production with solid residues obtained from fluidized-bed incineration of MSW-derived solid recovered fuel (SRF)

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