Understanding the chemical and mineralogical properties of the inorganic portion of MSWI bottom ash

Bayuseno, A.P.; Schmahl, Wolfgang W.

doi:10.1016/j.wasman.2010.03.010

Cited by 133 publications

(79 citation statements)

References 30 publications

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“…4. It can be observed that the dominant oxides in both bottom ashes are SiO 2 , CaO, Al 2 O 3 and Fe 2 O 3 , which cumulatively account for around 88% of the bottom ash, which is in line with [54,55]. The finer particles contain higher amounts of CaO, Al 2 O 3 and Fe 2 O 3 and a lower amount of SiO 2 .…”

Section: Mass Loss [%]supporting

confidence: 53%

Characteristics and application potential of municipal solid waste incineration (MSWI) bottom ashes from two waste-to-energy plants

Tang

Florea

Spiesz

et al. 2015

Construction and Building Materials

181

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Section: Mass Loss [%]supporting

confidence: 53%

Characteristics and application potential of municipal solid waste incineration (MSWI) bottom ashes from two waste-to-energy plants

Tang

Florea

Spiesz

et al. 2015

Construction and Building Materials

181

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“…It can be assumed that after 3 months period begin to form ettringite (Bayuseno, Schmahl 2010). This chemical process can be described by the following formula:…”

Section: Resultsmentioning

confidence: 99%

“…The research (Hyks et al 2009;Bayuseno, Schmahl 2010;Rambaldi et al 2010;Wei et al 2011;Tang, Steenari 2016) in different countries showed that bottom ash contains of large quantities of heavy metals: zinc (903-7732 mg kg -1 ), copper (1041-7743 mg kg -1 ), lead (687-4552 mg kg -1 ). Concentrations of cadmium and cobalt in the bottom ash were small (1-92 mg kg -1 ).…”

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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“…Taip pat aptinkama chromo, nikelio, alavo, stroncio, arseno. Kadmio ir kobalto koncentracijos dugno pelenuose ir šlake yra nedidelės (1-94 mg/kg) (Hyks et al 2009;Rambaldi et al 2010;Bayuseno, Schmahl 2010;Wei et al 2011;Tang, Steenari 2016).…”

Section: įVadasunclassified

Fresh Bottom Ash Characteristics Dependence on Fractional Composition

Seniūnaitė

Vasarevičius

2017

Science - Future of Lithuania

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2017 © Straipsnio autoriai. Leidėjas VGTU leidykla "Technika". Šis straipsnis yra atvirosios prieigos straipsnis, turintis Kūrybinių bendrijų (Creative Commons) licenciją (CC BY-NC 4.0), kuri leidžia neribotą straipsnio ar jo dalių panaudą su privaloma sąlyga nurodyti autorių ir pirminį šaltinį. Straipsnis ar jo dalys negali būti naudojami komerciniams tikslams. Deginant atliekų tūris sumažėja -65-70 %, o masė net 85-90 % (Ginés et al. 2009;Wei et al. 2011;Santos et al. 2013). Procese susidaro du pagrindiniai atliekų srautai: pavojingi -lakieji pelenai (angl. fly ash) ir nepavojingidugno pelenai ir šlakas (angl. bottom ash). Dugno pelenais ir šlaku yra įvardijamos degimo kameroje degimo proceso pabaigoje iškrentančios deginimo proceso atliekos bei nedeganti liekana, susikaupusi degimo kameros dugne. Pelenus ir šlaką taip pat gali sudaryti per grotelių kiaurymes iškrentančios dalelės bei nepavojingosios garo katilo dulkės. Dugno pelenai sudaro 85 % proceso liekanų masės (vidutiniškai 16-35 % pradinės kuro masės) (Rambaldi et al. 2010;Yang et al. 2012;Schabbach et al. 2012;Wei et al. 2011). MOKSLAS -LIETUVOS ATEITIS SCIENCE -FUTURE OF LITHUANIADeginant atliekas gauti dugno pelenai ir šlakas yra daugiakomponentė sistema, kurią sudaro išsilydžiusių produktų ir nesudegusių dalelių mišinys, taip pat medžia-gos, kurios deginimo procese išliko beveik nepakitusios (geležis, spalvotieji ir sunkieji metalai, stiklas, keramikos nuolaužos ir mažos statybinių atliekų dalelės) .Dugno pelenų ir šlako savybės labiausiai priklauso nuo deginamų atliekų srauto sudėties.

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Understanding the chemical and mineralogical properties of the inorganic portion of MSWI bottom ash

Cited by 133 publications

References 30 publications

Characteristics and application potential of municipal solid waste incineration (MSWI) bottom ashes from two waste-to-energy plants

Characteristics and application potential of municipal solid waste incineration (MSWI) bottom ashes from two waste-to-energy plants

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

Fresh Bottom Ash Characteristics Dependence on Fractional Composition

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