Polyacrylate–water partitioning of biocidal compounds: Enhancing the understanding of biocide partitioning between render and water

Bollmann, Ulla E.; Ou, Yi; Mayer, Philipp; Trapp, Stefan; Bester, Kai

doi:10.1016/j.chemosphere.2014.08.074

Cited by 17 publications

(9 citation statements)

References 22 publications

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“…1). The maximum concentrations, established with typical contact times larger than 10 min, were in the same range as those determined in earlier pure partitioning experiments (Bollmann et al, 2015;Styszko et al, 2014) (Table 2). Interestingly the different leaching experiments lead to different concentrations in the water even at higher contact times, indicating toward the kind of cycle not only influencing the speed of leaching but also the equilibrium constants.…”

Section: Concentration Dynamicsmentioning

confidence: 83%

“…Leaching as such is a complex process depending on water contact, thermodynamical data (partitioning) and mobility or delivery of the biocides through the material. While water contact is a weather dependent architectural design parameter, the partitioning has been elaborated upon (Bollmann et al, 2015;Styszko et al, 2014;Schoknecht et al, 2009). However, neither the speed nor the detailed mechanisms of delivery/ mobility of biocides through the render material has been studied so far.…”

Section: Introductionmentioning

confidence: 99%

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Leaching of biocides from polymer renders under wet/dry cycles – Rates and mechanisms

2015

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Section: Concentration Dynamicsmentioning

confidence: 83%

Section: Introductionmentioning

confidence: 99%

Leaching of biocides from polymer renders under wet/dry cycles – Rates and mechanisms

2015

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“…This section reviews the data concerning the quantity of biocides emitted from buildings and the parameters influencing the leaching. Most of the studies on leaching processes focused on paints and renders (Schoknecht et al 2009;Burkhardt et al 2011;Wangler et al 2012;Styszko et al 2015;Bollmann et al 2015a;Erich and Baukh 2016;Urbanczyk et al 2019a…”

Section: Leaching Of Biocides From Building Materialsmentioning

confidence: 99%

“…Results were in the range of experimental data from lab scale experiments. Also, several studies (Lupsea et al 2013;Styszko et al 2014;Bollmann et al 2015a) described biocide partition between the material and the water as a major mechanism which controls leaching. Erich and Baukh (2016) took three mechanisms into account: water diffusion, biocide transfer to water and biocide diffusion.…”

Section: Modelling Studiesmentioning

confidence: 99%

Biocide emissions from building materials during wet weather: identification of substances, mechanism of release and transfer to the aquatic environment

Paijens

Bressy

Frère

et al. 2019

Environ Sci Pollut Res

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Biocides are added to or applied on building materials to prevent microorganisms from growing on their surface or to treat them. They are leached into building runoff and contribute to diffuse contamination of receiving waters. This review aimed at summarizing the current state of knowledge concerning the impact of biocides from buildings on the aquatic environment. The objectives were (i) to assess the key parameters influencing the leaching of biocides and to quantify their emission from buildings; (ii) to determine the different pathways from urban sources into receiving waters; and (iii) to assess the associated environmental risk. Based on consumption data and leaching studies, a list of substances to monitor in receiving water was established. Literature review of their concentrations in the urban water cycle showed evidences of contamination and risk for aquatic life, which should put them into consideration for inclusion to European or international monitoring programs. However, some biocide concentration data in urban and receiving waters is still missing to fully assess their environmental risk, especially for isothiazolinones, iodopropynyl carbamate, zinc pyrithione and quaternary ammonium compounds, and little is known about their transformation products. Although some models supported by actual data were developed to extrapolate emissions on larger scales (watershed or city scales), they are not sufficient to prioritize the pathways of biocides from urban sources into receiving waters during both dry and wet weathers. Our review highlights the need to reduce emissions and limit their transfer into rivers, and reports several solutions to address these issues.

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“…The European standard EN 16,105 [41] was developed to determine the release of substances from coatings in intermittent contact with water under laboratory conditions [104]. The transport of biocides within the wet coatings is influenced by diffusion [96,104,105], desorption from the coating material [106], and partition between polymeric binder and water [107].…”

Section: Release Of Biocides From Coatingsmentioning

confidence: 99%

Using Environmental Simulations to Test the Release of Hazardous Substances from Polymer-Based Products: Are Realism and Pragmatism Mutually Exclusive Objectives?

et al. 2020

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The potential release of hazardous substances from polymer-based products is currently in the focus of environmental policy. Environmental simulations are applied to expose such products to selected aging conditions and to investigate release processes. Commonly applied aging exposure types such as solar and UV radiation in combination with water contact, corrosive gases, and soil contact as well as expected general effects on polymers and additional ingredients of polymer-based products are described. The release of substances is based on mass-transfer processes to the material surfaces. Experimental approaches to investigate transport processes that are caused by water contact are presented. For tailoring the tests, relevant aging exposure types and release quantification methods must be combined appropriately. Several studies on the release of hazardous substances such as metals, polyaromatic hydrocarbons, flame retardants, antioxidants, and carbon nanotubes from polymers are summarized exemplarily. Differences between natural and artificial exposure tests are discussed and demonstrated for the release of flame retardants from several polymers and for biocides from paints. Requirements and limitations to apply results from short-term artificial environmental exposure tests to predict long-term environmental behavior of polymers are presented.

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Polyacrylate–water partitioning of biocidal compounds: Enhancing the understanding of biocide partitioning between render and water

Cited by 17 publications

References 22 publications

Leaching of biocides from polymer renders under wet/dry cycles – Rates and mechanisms

Leaching of biocides from polymer renders under wet/dry cycles – Rates and mechanisms

Biocide emissions from building materials during wet weather: identification of substances, mechanism of release and transfer to the aquatic environment

Using Environmental Simulations to Test the Release of Hazardous Substances from Polymer-Based Products: Are Realism and Pragmatism Mutually Exclusive Objectives?

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