Use of stabilized bottom ash for bound layers of road pavements

Toraldo, Emanuele; Saponaro, Sabrina; Careghini, Alessandro; Mariani, Edoardo

doi:10.1016/j.jenvman.2013.02.037

Cited by 65 publications

(31 citation statements)

References 26 publications

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“…한다 (Toraldo et al, 2013;Cabrera et al, 2014;Nguyen et al, 2015). 본 연구에 사용된 여재는 제올라이트(Zeolite, ZL), 우드칩(Woodchip, WC), 바텀애쉬(Bottom ash, BA), 바이오세라믹(Bioceramic, BC)등이다.…”

Section: 따라서 본 연구에서는 Lid시설에 적용되는 4가지 종류의 여재를 선정하여 여재의 경제성과 처리효율성을 실험적unclassified

Cost-effective assessment of filter media for treating stormwater runoff in LID facilities

Lee¹,

Choi²,

Hong³

et al. 2016

Journal of Wetlands Research

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The impervious surface rate increased by urbanization causes various problems on the environment such as water cycle distortion, heat island effect, and non-point pollutant discharges. The Low Impact Development (LID) techniques are significantly considered as an important tool for stormwater management in urban areas and development projects. The main mechanisms of LID technologies are hydrological and environmental pollution reduction among soils, media, microorganisms, and plants. Especially, the media provides important functions on permeability and retention rate of stormwater runoff in LID facilities. Therefore, this research was performed to assess the pollutant removal efficiency for different types of media such as zeolite, wood chip, bottom ash, and bio-ceramic. All media show high pollutant removal efficiency of more than 60% for particulate materials and heavy metals. Double layered media is more effective in reducing heavy metals by providing diverse sizes of micro-pores and macro-pores compared to the single layered media. The results recommend the use of different sizes of media application is more cost-effective in LID than a single size of media. Furthermore, soluble proportion of total heavy metal in the stormwater is an important component in proper media selection and arrangement.

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Section: 따라서 본 연구에서는 Lid시설에 적용되는 4가지 종류의 여재를 선정하여 여재의 경제성과 처리효율성을 실험적unclassified

Cost-effective assessment of filter media for treating stormwater runoff in LID facilities

Lee¹,

Choi²,

Hong³

et al. 2016

Journal of Wetlands Research

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show abstract

“…1), such as vitrification (Toraldo et al 2013;Ferraris et al 2009), water washing (Kuo et al 2013), full metal separation (Olsson et al 2009) and weathering (natural and accelerated) (Arickx et al 2006;Gori et al 2011;Santos et al 2013;Valle-Zermeño et al 2013;Valle-Zermeño et al 2015), for MSWI bottom ash stabilization. Bottom ash pre-treatment technologies requires additional costs.…”

Section: Introductionmentioning

confidence: 99%

Heavy Metals Leaching of MSWI Bottom Ash: Effect of Short-term Natural Weathering

Seniūnaitė

Vasarevičius

2017

Proccedings of 10th International Conference "Environmental Engineering"

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Abstract. Municipal solid wastes incineration (MSWI) is an important part of the waste management systems in many European countries. Incineration process generates two main by-products: fly ash (FA) and bottom ash (BA). Bottom ash is composed of a variety of oxides, heavy metals and salts. Landfilling of untreated (fresh) BA can cause soil, surface and ground water contamination problems, because atmospheric precipitation in BA formed leachate, which contains of various materials. In this study investigates the influence of natural weathering to heavy metals leaching from BA. Leaching tests of bottom ash were carried out in 6 months, leachate samples were taken at 12 times (every 2 weeks). Heavy metals (Pb, Cu) concentrations were determined by atomic adsorption of spectral analysis method. The research shown, that the highest lead and copper concentration was determinated in 2 weeks weathered bottom ash leachate, respectively was 0.613 mg l -1 and 0.068 mg l -1 . In both cases the concentration of Pb (0.010-0.052 mg l -1 ) and Cu (0.010-0.018 mg l -1 ) became almost stable after 12 weeks. Can be concluded, that short-term (3 months) natural weathering is sufficient time for stabilise MSWI bottom ash and heavy metals (Cu and Pb) leaching. After 18-24 weeks heavy metals concentrations stabilized and remained almost constant.

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“…In general, bottom ash shows composition similar to natural aggregates and its reuse is a common practice in many countries (Denmark, the Netherlands, Belgium, France, Germany, Japan, Taiwan, USA, etc.) to minimize landfilling and to improve sustainability of MSW management [4]. In Italy, in 2007, 50 % of bottom ashes were recovered, primarily for use as raw material in cement production and for metal recovery [5].…”

Section: Introductionmentioning

confidence: 99%

“…The high amount of heavy metals and the variable mechanical properties of incineration residues can hamper its extensive reuse [4].…”

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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Use of stabilized bottom ash for bound layers of road pavements

Cited by 65 publications

References 26 publications

Cost-effective assessment of filter media for treating stormwater runoff in LID facilities

Cost-effective assessment of filter media for treating stormwater runoff in LID facilities

Heavy Metals Leaching of MSWI Bottom Ash: Effect of Short-term Natural Weathering

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

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