Behavior of TiO2 nanoparticles during incineration of solid paint waste: A lab-scale test

Massari, Andrea; Beggio, Marta; Hreglich, Sandro; Marin, Riccardo; Zuin, Stefano

doi:10.1016/j.wasman.2014.05.015

Cited by 30 publications

(25 citation statements)

References 49 publications

(59 reference statements)

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“…More recently published studies have started to address this data gap. For example, Massari et al [84] looked at the behavior of TiO2 nanoparticles during the incineration of solid paint waste. Walser et al studied the behavior of CeO2 nanoparticles during waste incineration [85,86].…”

Section: Limitations Of the Literature To Date And Suggestions For Immentioning

confidence: 99%

Airborne engineered nanomaterials in the workplace—a review of release and worker exposure during nanomaterial production and handling processes

Ding

Kuhlbusch

Tongeren

et al. 2017

Journal of Hazardous Materials

120

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For exposure and risk assessment in occupational settings involving engineered nanomaterials (ENMs), it is important to understand the mechanisms of release and how they are influenced by the ENM, the matrix material, and process characteristics. This review summarizes studies providing ENM release information in occupational settings, during different industrial activities and using various nanomaterials. It also assesses the contextual information - such as the amounts of materials handled, protective measures, and measurement strategies - to understand which release scenarios can result in exposure. High-energy processes such as synthesis, spraying, and machining were associated with the release of large numbers of predominantly small-sized particles. Low-energy processes, including laboratory handling, cleaning, and industrial bagging activities, usually resulted in slight or moderate releases of relatively large agglomerates. The present analysis suggests that process-based release potential can be ranked, thus helping to prioritize release assessments, which is useful for tiered exposure assessment approaches and for guiding the implementation of workplace safety strategies. The contextual information provided in the literature was often insufficient to directly link release to exposure. The studies that did allow an analysis suggested that significant worker exposure might mainly occur when engineering safeguards and personal protection strategies were not carried out as recommended.

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Section: Limitations Of the Literature To Date And Suggestions For Immentioning

confidence: 99%

Airborne engineered nanomaterials in the workplace—a review of release and worker exposure during nanomaterial production and handling processes

Ding

Kuhlbusch

Tongeren

et al. 2017

Journal of Hazardous Materials

120

View full text Add to dashboard Cite

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“…For example, TiO 2 and CeO 2 will pass chemically unchanged through wastewater treatment plants, although they may be modified by incineration. [ 37 ]…”

Section: Key Nm Environmental Transformations Processesmentioning

confidence: 99%

Nanomaterial Transformations in the Environment: Effects of Changing Exposure Forms on Bioaccumulation and Toxicity

Spurgeon

Lahive

Schultz

2020

Small

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In the environment, nanomaterials (NMs) are subject to chemical transformations, such as redox reactions, dissolution, coating degradation, and organic matter, protein, and macromolecule binding, and physical transformations including homo or heteroagglomeration. The combination of these reactions can result in NMs with differing characteristics progressing through a functional fate pathway that leads to the formation of transformed NM functional fate groups with shared properties. To establish the nature of such effects of transformation on NMs, four main types of studies are conducted: 1) chemical aging for transformation of pristine NMs; 2) manipulation of test media to change NM surface properties; 3) aging of pristine NMs water, sediment, or soil; 4) NM aging in waste streams and natural environments. From these studies a paradigm of aging effects on NM uptake and toxicity can be developed. Transformation, especially speciation changes, largely results in reduced potency. Further reactions at the surface resulting in processes, such as ecocorona formation and heteroagglomeration may additionally reduce NM potency. When NMs of differing potency transform and enter environments, common transformation reaction occurring in receiving system may act to reduce the variation in hazard between different initial NMs leading to similar actual hazard under realistic exposure conditions.

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“…Vejerano et al (2014) observed a phase transition from anatase to rutile after the combustion of waste containing nTiO 2 in their laboratory experiments. Massari et al (2014) reported a reaction of nTiO 2 to calcium titanate during the incineration of solid paint wastes containing nTiO 2 in their lab scales tests. Winkler and Zorll (2003) specify a value between 1830°C and 1850°C for the melting point for rutile.…”

Section: State Of the Artmentioning

confidence: 99%

Fate of nano titanium dioxide during combustion of engineered nanomaterial-containing waste in a municipal solid waste incineration plant

et al. 2019

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The market for products containing engineered nanomaterial (ENM) is constantly expanding. At the end of their lifecycle, a significant fraction of the products will be disposed as ENM-containing waste in thermal treatment plants. Up to now there are still uncertainties on the fate and behaviour of ENM during waste incineration. In our investigations, nano titanium dioxide (nTiO2) was selected as an example for ENM, because of its high amount in consumer products and its relevance to the ENM-containing waste stream. Two test series were conducted at the municipal solid waste incineration plant “Gemeinschaftskraftwerk Schweinfurt”. For each test series, background concentrations of titanium were measured first. Samples of bottom ash, bottom ash extractor water, fly ash (boiler ash, cyclone ash), flue gas cleaning products (spray absorber ash, fabric filter ash) and washing water from the wet scrubber were taken in order to determine the fate of nTiO2. The flue gas was sampled at three points: after boiler, after cyclone and before stack. The experiments showed that most of the used reference material was located in the solid residues (i.e. bottom ash) while a smaller part was detected in the products of the flue gas cleaning. In the purified flue gas before the stack, the concentration was negligible. The flue gas cleaning system at the Gemeinschaftskraftwerk Schweinfurt complies with the requirements of the best available techniques and the results cannot be transferred to plants with lower standards.

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Behavior of TiO2 nanoparticles during incineration of solid paint waste: A lab-scale test

Cited by 30 publications

References 49 publications

Airborne engineered nanomaterials in the workplace—a review of release and worker exposure during nanomaterial production and handling processes

Airborne engineered nanomaterials in the workplace—a review of release and worker exposure during nanomaterial production and handling processes

Nanomaterial Transformations in the Environment: Effects of Changing Exposure Forms on Bioaccumulation and Toxicity

Fate of nano titanium dioxide during combustion of engineered nanomaterial-containing waste in a municipal solid waste incineration plant

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