Biocide leaching from CBA treated wood — A mechanistic interpretation

Lupsea, Maria; Mathies, Helena; Schoknecht, Ute; Tiruta-Barna, Ligia; Schiopu, Nicoleta

doi:10.1016/j.scitotenv.2012.11.089

Cited by 9 publications

(12 citation statements)

References 24 publications

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“…Similar curve progression also supports the assumption that copper and organic substances are co-eluted. This is in agreement with the results reported by Lupsea et al [20,21]. Increased emission of copper due to co-elution with DOC has been observed by van Zomeren et al [22], Tiruta-Barna and Schiopu [23] and Lupsea et al [20].…”

Section: Variation Of L/a Ratiossupporting

confidence: 92%

“…This is in agreement with the results reported by Lupsea et al [20,21]. Increased emission of copper due to co-elution with DOC has been observed by van Zomeren et al [22], Tiruta-Barna and Schiopu [23] and Lupsea et al [20]. Co-elution of copper and organic substances, including nitrogenous substances, is supported by binding reactions as described by Lupsea et al [20,21].…”

Section: Variation Of L/a Ratiossupporting

confidence: 91%

“…Increased emission of copper due to co-elution with DOC has been observed by van Zomeren et al [22], Tiruta-Barna and Schiopu [23] and Lupsea et al [20]. Co-elution of copper and organic substances, including nitrogenous substances, is supported by binding reactions as described by Lupsea et al [20,21]. Therefore, the observation on copper emissions is related to the actual composition of the wood preservative that was used for the experiments.…”

Section: Variation Of L/a Ratiosmentioning

confidence: 71%

“…Most of the TN in the eluates is related to treatment with the wood preservative that includes amines (see Table 2). It was shown by Lupsea et al [20] that nitrogen is not only leached as the added amine but also as a series of substances that originate from reactions of nitrogen (amino group) contained in the wood preservative with wood components. Higher TN emissions in TS-2 experiments can be caused by different evaporations of ethanolamine during the 39-day period of conditioning of the treated test specimens prior to the leaching experiment.…”

Section: Comparison Of Ts-2 and Oecd 313 Experimentsmentioning

confidence: 99%

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Laboratory leaching tests on treated wood according to different harmonised test procedures

et al. 2014

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Background: Laboratory leaching tests on treated wood were performed during a European robustness study in the framework of the validation of a tank leaching test procedure that has been proposed for construction products in order to determine the potential release of dangerous substances which can be transferred to soil and groundwater. The release of substances has to be determined also for materials treated with biocidal products according to the requirements of the European Biocidal Products Regulation. A similar leaching test procedure was already harmonised for treated wood for this purpose. Both test procedures were applied in parallel to wood treated with the same preservative to investigate whether the results of these tests can replace each other. Additional experiments were performed to further investigate unexpected effects of L/A ratio on leaching of copper and duration of storage of treated test specimens. Results: Both procedures generate similar results concerning cumulative emissions of tebuconazole, copper, dissolved organic carbon and total nitrogen. The emission rates with time are in comparable ranges for both leaching protocols. Emissions of copper increased with decreasing L/A ratios. Strong correlation of copper concentrations and dissolved organic carbon as well as total nitrogen concentrations in eluates indicates that this observation is caused by co-elution of copper with organic substances. Duration of storage of treated test specimens affected emissions for the investigated wood preservative. Conclusions: Based on these findings, results from both test procedures can be used to describe leaching characteristics and avoid double testing of treated wood to fulfil the requirements of the European regulations for either biocides or construction products. Leaching of substances from treated wood is a complex process that depends on its chemical composition and ageing processes.

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Section: Variation Of L/a Ratiossupporting

confidence: 92%

Section: Variation Of L/a Ratiossupporting

confidence: 91%

Section: Variation Of L/a Ratiosmentioning

confidence: 71%

Section: Comparison Of Ts-2 and Oecd 313 Experimentsmentioning

confidence: 99%

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Laboratory leaching tests on treated wood according to different harmonised test procedures

et al. 2014

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“…17 Some independent factors, such as natural environmental conditions, UV radiation from sunlight, humidity, thermal fatigue, and biological erosion, can play important roles in the antialgal efficacy and service lifetime of polymer materials. [17][18][19][20][21][22][23][24][25] In addition, surface roughness (including surface cracking caused by UV degradation) increases biofilm formation on polymer materials. 26,27 The aims of the current study were to develop antialgal LDPE mulching films for agricultural application and to demonstrate the aging effects (accelerated UV weathering and natural outdoor exposure) on changes in the physical, mechanical, and antialgal properties of the films.…”

Section: Introductionmentioning

confidence: 99%

Uses of 2-hydroxypropyl-3-piperazinyl-quinoline carboxylic acid methacrylate and Terbutryn as algaecides in low-density polyethylene mulching films for agricultural applications

Gitchaiwat

Likhitlert

Kositchaiyong

et al. 2015

Journal of Plastic Film & Sheeting

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The aim of this work concerned the performances and limitations of uses of two commercial biocides, namely 2-hydroxypropyl-3-piperazinyl-quinoline carboxylic acid methacrylate and N 2 -tert-butyl-N 4 -ethyl-6-methylthio-1,3,5-triazine-2,4-diamine (Terbutryn), in low-density polyethylene mulching film for agricultural application. The effects of type and algaecide concentration as well as aging deterioration of low-density polyethylene film surfaces were studied in relation to the mechanical, physical, and antialgal properties of the low-density Downloaded from polyethylene films. For antialgal evaluation, disk diffusion test and chlorophyll-a measurement technique were carried out on Chlorella vulgaris, a single-cell green algae, and Phormidium angustissimum, a blue-green algae. The results suggested that adding 2-hydroxypropyl-3-piperazinyl-quinoline carboxylic acid methacrylate or Terbutryn tended to slightly increase the lightness value (L*) of specimens, but did not affect the film mechanical properties. The disk diffusion test indicated that only Terbutryn at 600-1000 ppm resulted in clear zone development against C. vulgaris for low-density polyethylene film specimens. Regarding the quantitative study by chlorophyll-a measurement technique, the antialgal activities of lowdensity polyethylene films gradually improved with increasing algaecide concentrations. Terbutryn appeared to show more effective antialgal efficacy than 2-hydroxypropyl-3-piperazinyl-quinoline carboxylic acid methacrylate. Under aging deterioration, Terbutryn-low-density polyethylene films showed less degradation of mechanical properties than neat low-density polyethylene films. However, the antialgal activity of Terbutryn-low-density polyethylene films at various algaecide concentrations was reduced under both accelerated UV weathering and natural outdoor exposure.

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Antibiofouling thin-film composite membranes (TFC) by in situ formation of Cu-(m-phenylenediamine) oligomer complex

et al. 2018

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Biocide leaching from CBA treated wood — A mechanistic interpretation

Cited by 9 publications

References 24 publications

Laboratory leaching tests on treated wood according to different harmonised test procedures

Laboratory leaching tests on treated wood according to different harmonised test procedures

Uses of 2-hydroxypropyl-3-piperazinyl-quinoline carboxylic acid methacrylate and Terbutryn as algaecides in low-density polyethylene mulching films for agricultural applications

Antibiofouling thin-film composite membranes (TFC) by in situ formation of Cu-(m-phenylenediamine) oligomer complex

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