A study of paint sludge deactivation by pyrolysis reactions

Muniz, Luis Antonio Rezende; Costa, Alfredo; Steffani, Evandro; Zattera, Ademir J.; Hofsetz, Kelly; Bossardi, Kelly; Valentini, Laura

doi:10.1590/s0104-66322003000100012

Cited by 13 publications

(8 citation statements)

References 4 publications

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“…In the empirical analysis, the chemical composition of paint sludge identified different utilisation possibilities for the paint sludge, their economic, technical, and environmental feasibility, and their business potential were studied. Many other solutions have been proposed based on the literature review on paint sludge utilisation (e.g., Burande, 2017;Gautam et al, 2010;Muniz et al, 2003). Some have only been tested in laboratory conditions (Muniz et al, 2003) but some are already widely used in certain parts of the world (Gautam et al, 2010).…”

Section: Methodsmentioning

confidence: 99%

The Role of Logistics in Industrial Side Stream Utilisation – Case: Aqueous Paint Sludge

Leppänen¹,

Rönkkö²,

Haapasalo³

et al. 2022

IJMKL

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In this article, the utilisation of a case side stream, aqueous paint sludge is studied in accordance with the principles of the circular economy. The study's main objective is to find new potential utilisation possibilities for aqueous paint sludge generated in the region and take a closer look at the role of logistics in the industrial side stream utilisation-based business cases and value chains.Study design/methodology/approach: In this article, the utilisation of aqueous paint sludge is studied via a descriptive case study in the context of Northern Ostrobothnia, Finland. The current state of the paint sludge problem was analysed by interviewing five company representatives. In addition, a workshop was organised, and before the workshop, a questionnaire was sent to all invited.Findings: As a result, the most feasible solutions for aqueous paint sludge utilisation were identified and evaluated from economic, technical, and environmental points of view in the context of this study. In all the proposed solutions, one general challenge was the logistics for narrow material flows from decentralised sources in a relatively large geographical area.Originality/value: Prior case studies of paint sludge utilisation as a raw material have been conducted, but the logistics have not played a significant role in the studies. Logistics has been an important part of the circular economy in the literature. This study reaffirms this notion and finds logistics to have an important and decisive role in industrial side stream utilisation-based business cases and value chains.

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Section: Methodsmentioning

confidence: 99%

The Role of Logistics in Industrial Side Stream Utilisation – Case: Aqueous Paint Sludge

Leppänen¹,

Rönkkö²,

Haapasalo³

et al. 2022

IJMKL

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“…Researchers from the Ford company investigated the technical feasibility of pyrolizing PS to an activated carbon-like adsorbent, useful to reduce emissions of volatile organic compounds (VOCs) from spray booths (Kim et al, 2001). Other works considered the recycling of the inorganic pyrolysis residue, made of metal oxides, into the same source materials from which they originated (paint fillers) and the collection and subsequent burning of pyro-oil and pyro-gas (Muniz et al, 2003; Nakouzi et al, 1998). In the mid-1990s ASTER Inc. proposed a solution to recycle PS into ingredients for automotive sealants (Gerace et al, 2002).…”

Section: Introductionmentioning

confidence: 99%

Reuse of paint sludge in road pavements: Technological and environmental issues

et al. 2018

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This paper presents some of the results obtained in a research project focused on the use of paint sludge (PS) as a modifying agent in the production of bituminous binders for paving applications. The scope of the project was to provide an innovative, sustainable and profitable solution to waste management problems which automotive industries have to face worldwide as a result of the production of PS. The authors applied for a patent which defines the industrial process for the production of PS modified binders (PSMBs). Measurements and analyses which were considered relevant for the assessment of technological feasibility included evaluation of: PS physical characteristics, PSMB high-temperature viscosity and PSMB storage stability. Environmental issues were addressed by considering PS chemical composition, gaseous emissions during PSMB production, and leaching behavior of bituminous mixtures containing PSMBs. Obtained results show that with a proper adaptation of the PSMB production process (i.e., PS drying at a higher temperature than 105°C) it is possible to comply with technological and environmental requirements such as those related to storage stability and to gaseous emissions during PSMB production and laying of bituminous mixtures. Leaching tests, aimed to evaluate runoff water quality, show no substantial difference in the release of substances in water between standard bituminous mixtures and bituminous mixtures prepared with PSMBs.

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“…9 Gasification or pyrolysis of paint waste or used plastic paint containers as a method for recycling of paint components and the value of these components have been described in the literature. [10][11][12][13][14] In the described methods, the organic components in the paint were viewed as the valuable part to be used for energy production. No work on the recovery of the inorganic parts (TiO 2 -containing pigments) has been found in the literature to date.…”

Section: Introductionmentioning

confidence: 99%

Recovery of titanium dioxide and other pigments from waste paint by pyrolysis

et al. 2015

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In this work, a model paint containing several types of inorganic pigments was pyrolyzed in a microwave-heated unit. The goal of the pyrolysis process was to recover and recycle the inorganic components in the paint, most importantly titanium dioxide (TiO 2 ). The solid residue remaining after pyrolysis was further heat treated in air to remove most of the char in the TiO 2 -containing product. The recovered TiO 2 -containing product was used in two types of paint formulation as a replacement for virgin pigments. The properties of the paints containing recycled TiO 2 pigment and extenders were evaluated and compared with a standard paint formulation containing only virgin TiO 2 pigment and virgin extenders. A reduction in paint whiteness was observed but the opacity, gloss, and durability were nearly equivalent to that of the standard paint. Another consequence of using recycled pigments was that the recycled mix of TiO 2 pigments and extenders was harder to disperse in the paint than the mix based on virgin materials, thus giving the painted surface a somewhat rough texture. The recycled material has shown promising results as a pigment/extender but further work is needed to optimize the recycled product to meet whiteness and dispersion requirements for incorporation in paint formulations on an industrial scale.

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A study of paint sludge deactivation by pyrolysis reactions

Cited by 13 publications

References 4 publications

The Role of Logistics in Industrial Side Stream Utilisation – Case: Aqueous Paint Sludge

The Role of Logistics in Industrial Side Stream Utilisation – Case: Aqueous Paint Sludge

Reuse of paint sludge in road pavements: Technological and environmental issues

Recovery of titanium dioxide and other pigments from waste paint by pyrolysis

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