Heavy metal mobility and valuable contents of processed municipal solid waste incineration residues from Southwestern Germany

Abramov, Sergey M.; He, Jing; Wimmer, Dominik; Lemloh, Marie-Louise; Muehe, E. Marie; Gann, Benjamin; Roehm, Ellen; Kirchhof, Rainer; Babechuk, Michael G.; Schoenberg, Ronny; Thorwarth, Harald; Helle, Thomas; Kappler, Andreas

doi:10.1016/j.wasman.2018.08.010

Cited by 51 publications

(45 citation statements)

References 47 publications

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“…[55] presented lower value for Cu and Cd, Pb and Zn were higher. The distribution of heavy metals during thermochemical conversion have significant variance depending on the choice of reactions mechanisms [30,32,43,44]. Heterogeneity of the raw MSW was expected to be main factor for this wide difference in concentrations.…”

Section: Quantification Of Heavy Metals In Bottom Ashmentioning

confidence: 99%

“…Moreover, incineration of MSW to generate energy is one of the traditional methods of dealing with combustible waste efficiently because it reduces the volume and mass of MSW. Although heavy metals are inert and give off no energy when they are incinerated, the high temperatures of a MSW furnace cause metals to partially volatize, resulting in release of toxic poisonous fumes and fly ash [29][30][31][32]. In addition, it has drawbacks as well particularly hazardous emissions (NOx, SO x , HCl and harmful organic compounds) [14,[33][34][35] and harmful process residues [36].…”

Section: Introductionmentioning

confidence: 99%

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Assessment of heavy metals in RDF for thermochemical conversion

2020

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Thermal treatment applications towards production of energy from raw and pre-treated municipal solid waste (MSW) are continuously growing context in contemporary waste-to-energy technology. The quality of MSW needs an improved analysis to enhance her choice of energy exploitation and environmental assessment of fly and bottom ashes associated with thermochemical conversions. The MSW were collected from municipal solid waste disposal facilities (MSWDF) in Cape Town to investigate heavy metals distributions in MSW. The MSW were pre-treated to improve the quality of MSW. The 7700 Series quadrupole ICP-MS solution method was used to determine concentrations and distributions of some heavy metals from MSWDF in Cape Town. This study further predicted distributions of heavy metals in fly and bottom ashes by a model. The results showed that accumulation of high concentrations of heavy metals in bottom ash residue could be a good remedy for heavy metals control. The heavy metals (especially Pb, Zn and Hg) emissions could be technically monitored and controlled from escaping to urban air-sheds atmosphere and prevent from their consequential secondary environmental and health implication.

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Section: Quantification Of Heavy Metals In Bottom Ashmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Assessment of heavy metals in RDF for thermochemical conversion

2020

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“…(3) Heavy metal pollution. Residues from the decomposition products of MSW can contain heavy metal, such as Ba, Pb, Cr, etc (Abramov et al, 2018), which leads to soil and water pollution. (4) Noise pollution.…”

Section: Environmental Aspectmentioning

confidence: 99%

A Novel Multi-Criteria Decision-Making Framework for Selecting Municipal Solid Waste Management Alternative with 2-Dimension Uncertain Linguistic Sets

Che

Zhang

2022

Preprint

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Municipal solid waste management (MSWM) has been considered as a complicated multi-criteria decision-making problem for the uncertain context and related criteria. To select an optimal MSWM scenario, this paper provides a comprehensive MCDM framework for decision makers under 2-dimension uncertain linguistic (2-DUL) environment. Distinguished from traditional approaches, this framework not only guarantees the consistency of comparison matrix but improves effectiveness and efficiency in the decision process. Moreover, it accurately solves the cardinal and ordinal information of MSWM scenarios. Firstly, due to ambiguous and uncertain decision context, the 2-DUL set, characterized by I class of the linguistic evaluation information and II class of the reliability of the assessment results, is adopted to describe decision-makers’ preference. An expectation reduced-dimension is developed to effectively handle 2-DUL set. Secondly, to guarantee consistency and reduce numerical pairwise comparisons, a best-worst-method (BWM)-based analytic network process (ANP) is utilized to form the local priority vectors of the main criteria and sub-criteria. Main criteria weights and sub-criteria weights are then obtained by aggregating all local priority vectors. Thirdly, an extended QUALIFLEX approach is employed to rank all alternative MSWM scenarios by comparing the weighted concordance/discordance index among overall possible permutations of all alternative scenarios. Finally, the developed framework is applied in a case study to determine an optimal MSWM scenario in Beijing. Additionally, a comparison analysis is complemented. The results demonstrate that the proposed framework is feasible, efficient and superior in MSWM scenarios selection.

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“…The toxicity of MSW is not only dependent on the pollutant element concentration, but also the specification of the element [37]. Generally, the alkalinity nature of the residual ashes (MSW-BA pH of 11.33 and MSW-FA 12.25), caused the formation of hydroxide, salt, oxide, and/or carbonate components during incineration [38,39]. The chemical compositions of the MSW-BA and the MSW-FA that were analyzed using XRD showed the presence of crystalline salts, particularly K 2 O, SiO 2 , AlO 3 , Fe 2 O 3, and CaO in both ashes.…”

Section: X-ray Diffraction Analysis (Xrd)mentioning

confidence: 99%

Physiochemical characterization and systematic investigation of metals extraction from fly and bottom ashes produced from municipal solid waste

et al. 2020

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Incineration has emerged as one of the acceptable ways to treat municipal solid waste (MSW) due to its potential in reducing the mass and volume of the waste. However, it produces two major by-product residues, namely MSW-bottom ash (MSW-BA) and MSW-fly ash (MSW-FA). These residues have gained great attention to their hazardous nature and potential to be reused and recycled. In this paper, the physicochemical characterizations of the MSW-BA and the MSW-FA were performed, followed by a systematic investigation of metals extraction from MSW-BA and MSW-FA. Various extracting agents were used to investigate the possibility to extract 21 metals including cadmium (Cd), vanadium (V), chromium (Cr), and lead (Pb). It was revealed that some metals were present in a high amount in the MSW-BA while other metals were higher in the MSW-FA. Moreover, the energy-dispersive X-ray spectroscopy results revealed that the MSW-BA was dominated by oxygen (O) 55.4 ±0.6 wt%, silicon (Si) 22.5 ±0.3 wt%, and calcium (Ca) 18.5 ±0.2 wt%. On the other hand, the MSW-FA was enriched with Ca 45.2 ±0.5 wt%, and O 40.3 ±0.4 wt%. From the scanning electron microscopy, the MSW-BA was observed as flaky with an irregular surface that consisted of large pores, while, the MSW-FA was present as agglomerated particles and had a bimodal distribution. Moreover, Fourier transform infrared spectroscopy revealed that Al-Fe-OH, Al-Al-OH, Si-O, CO , and C-H were some of the major functional groups present in the ashes. The F-tests concluded that the metal extraction from the MSW-BA and MSW-FA were significantly affected by the acid type. it is concluded that nitric acid and phosphoric acid were the best-suited acid for the MSW-BA while sulfuric acid and phosphoric acid for the MSW-FA. More than 11 wt% of Cd and 9 wt% of Cu were extracted from MSW-BA while 6 wt% of Pb and 4.5 wt% of V were extracted from the MSW-FA. The present methodology is an interesting development in metal extraction from the MSW-BA and the MSW-FA, which can develop in a cost-effective and sustainable option to utilize MSW.

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Heavy metal mobility and valuable contents of processed municipal solid waste incineration residues from Southwestern Germany

Cited by 51 publications

References 47 publications

Assessment of heavy metals in RDF for thermochemical conversion

Assessment of heavy metals in RDF for thermochemical conversion

A Novel Multi-Criteria Decision-Making Framework for Selecting Municipal Solid Waste Management Alternative with 2-Dimension Uncertain Linguistic Sets

Physiochemical characterization and systematic investigation of metals extraction from fly and bottom ashes produced from municipal solid waste

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