New methods to remove volatile organic compounds from post-consumer plastic waste

Cabanes, Andrea; Fullana, Andrés

doi:10.1016/j.scitotenv.2020.144066

Cited by 38 publications

(16 citation statements)

References 23 publications

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“…PEG is considered as a relatively eco-friendly solvent and is getting attention due to its low volatility and toxicity compared to conventional solvents, and its higher miscibility with organic compounds compared to water. [24] A batch lab-scale extraction with PEG has shown that the quantity of VOCs was reduced with 74% after PEG extraction at 100°C. Hence, PEG is considered to be a promising solvent towards deodorization.…”

Section: Deodorization Technologiesmentioning

confidence: 99%

“…Hence, PEG is considered to be a promising solvent towards deodorization. [24] A schematic representation of a deodorization by means of PEG can be found in Figure 3a.…”

Section: Deodorization Technologiesmentioning

confidence: 99%

“…A study has shown that an increased VOC reduction is achieved via steam stripping compared to hot air stripping. [24] Thereto, post-consumer HDPE was treated at a lab-scale distillation unit for 2 h. The produced vapor flowed through the plastic bed and left on the top, passing to a condenser. An overall reduction of volatile components above 70% was reported.…”

Section: Deodorization Technologiesmentioning

confidence: 99%

“…a) Deodorization by means of a solvent, b) deodorization by means of hot air stripping,and c) deodorization by means of steam stripping. Adopted from[24].…”

mentioning

confidence: 99%

See 3 more Smart Citations

Recent Advances in Pre-Treatment of Plastic Packaging Waste

Kol¹,

Roosen²,

Üǧdüler³

et al. 2022

Waste Material Recycling in the Circular Economy - Challenges and Developments

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There is an urgent need to close the loop of plastic waste. One of the main challenges towards plastic packaging waste recycling is the presence of a variety of contaminants. These contaminants include organic residues, additives, labels, inks and also other plastic types that can be present in the waste stream due to missorting or in multimaterial structures (e.g. multilayer films in packaging). In this context, pre-treatment processes are a promising route to tackle the difficulties that are encountered in mechanical and chemical recycling due to these contaminants. This chapter gives better insight on the already existing pre-treatment techniques and on the advances that are being developed and/or optimized in order to achieve closed-loop recycling. Some of these advanced pre-treatments include chemical washing to remove inks (deinking), extraction methods to remove undesired plastic additives and dissolution-based pre-treatments, such as delamination and dissolution-precipitation techniques.

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Section: Deodorization Technologiesmentioning

confidence: 99%

“…Hence, PEG is considered to be a promising solvent towards deodorization. [24] A schematic representation of a deodorization by means of PEG can be found in Figure 3a.…”

Section: Deodorization Technologiesmentioning

confidence: 99%

Section: Deodorization Technologiesmentioning

confidence: 99%

“…a) Deodorization by means of a solvent, b) deodorization by means of hot air stripping,and c) deodorization by means of steam stripping. Adopted from[24].…”

mentioning

confidence: 99%

See 2 more Smart Citations

Recent Advances in Pre-Treatment of Plastic Packaging Waste

Kol¹,

Roosen²,

Üǧdüler³

et al. 2022

Waste Material Recycling in the Circular Economy - Challenges and Developments

View full text Add to dashboard Cite

show abstract

“…Leslie et al [53] pointed out the importance of the presence of BFRs in plastic materials destined for recycling markets. These POPs have been found in various plastic materials, including items used for the automotive and electronic industries [53], children's toys [44,55,56] and personal care products [69].…”

Section: Dioxin-like Popsmentioning

confidence: 99%

PAH and POP Presence in Plastic Waste and Recyclates: State of the Art

et al. 2021

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The presence of different pollutants in recycled plastics is reviewed in this article. The desirable circular economy of plastics should be linked to the availability of clean recycled plastics with a non-significant and small to nil amount of substances of concern. Different researchers found polycyclic aromatic hydrocarbons (PAHs) and Persistent Organic Pollutants (POPs), such as brominated flame retardants (BFRs), pesticides, dioxins and furans (PCDD/Fs and PBDD/Fs) in plastic recyclates. This represents an added difficulty to the effective recycling process of plastics that reduces the demand for energy and materials, in addition to posing a great environmental danger since they represent a vector of accumulation of the contaminants that will finally appear in the most unexpected products. Life Cycle Analysis of the plastic wastes recycling process indicates a great saving of energy, water and CO2 emissions.

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Emission characteristics of volatile organic compounds from regenerated PET fibers based on the headspace gas chromatograph

Liu

Shi

et al. 2022

J of Applied Polymer Sci

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The emission behaviors of volatile organic compounds (VOCs) can be characterized by the key parameters: the initial concentration (m0), partition coefficient (K) and the diffusion coefficient (D). The MHE‐GC method was validated to determine the emission characteristics of VOCs (Benzene, Toluene, Ethylbenzene, P‐xylene, M‐xylene, Styrene, and O‐xylene) in regenerated PET fibers. This work has studied the effects of fiber size, sample weight incubation time and incubation temperature on the detection of these VOCs. It showed finer fiber sample with less sample facilitated the emission of VOCs in fibers above detectable limit. The optimized headspace incubation time, fiber sample weight, and headspace incubation temperature were selected as 60 min, about 0.8 g and 110 °C, respectively. In addition, incubation temperature has a negative effect on the gas/fiber partition coefficient. The fibers with greater fineness showed higher activation energy, which revealed a positive release of VOCs from fibers. The relative standard deviation (RSD/%) of detection was 3%–10%. The present method is reliable and suitable for use in testing of the VOCs content in fiber‐related materials.

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New methods to remove volatile organic compounds from post-consumer plastic waste

Cited by 38 publications

References 23 publications

Recent Advances in Pre-Treatment of Plastic Packaging Waste

Recent Advances in Pre-Treatment of Plastic Packaging Waste

PAH and POP Presence in Plastic Waste and Recyclates: State of the Art

Emission characteristics of volatile organic compounds from regenerated PET fibers based on the headspace gas chromatograph

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