Biodegradation of Wool Used for the Production of Innovative Geotextiles Designed to Erosion Control

Broda, Jan; Kobiela-Mendrek, Katarzyna; Rom, Monika; Grzybowska-Pietras, Joanna; Przybyło, Stanisława; Laszczak, Ryszard

doi:10.1007/978-94-017-7515-1_27

Cited by 10 publications

(4 citation statements)

References 4 publications

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“…In the case of wool biodegradation occurs much slower [5]. Aft er six months the characteristic scales observed on fi bres surface are practically completely removed and biodegradation causes partial disintegration of the inner parts of the fi bres ( Figure 7).…”

Section: Figure 5: Water Absorption Capacity Of the Kemafi L Ropes Prmentioning

confidence: 99%

Innovative Geotextiles for Reinforcement of Roadside Ditch

Broda¹,

Materials²,

Gawłowski³

et al. 2016

TEK

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Geotextiles consisting of meandrically arranged coarse ropes were produced. For the production of the ropes Kemafi l technology was applied and the wastes of various nonwovens were used. The geotextiles were used for the protection of the roadside ditch in a clay ground. After instalation of the geotextiles ensured immediate and eff ective protection of the ditch. During heavy rains the meandrically arranged geotextiles formed a system of cascades which slowed down the stream of water fl owing in the ditch. Additionally, the retention of water between the meanders of geotextiles and water absorption inside the ropes was observed. The materials used for the production of geotextiles had suffi cient resistance to biodegradation and ensured the protection of the ditch at least for one growing season.

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Section: Figure 5: Water Absorption Capacity Of the Kemafi L Ropes Prmentioning

confidence: 99%

Innovative Geotextiles for Reinforcement of Roadside Ditch

Broda¹,

Materials²,

Gawłowski³

et al. 2016

TEK

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“…During exploitation in a moist environment of the soil, the wool fibres were exposed to microorganisms that gradually digested the wool keratin [17,18]. At the beginning, the disintegration of keratin in the outer cuticle was initiated, leading subsequently to the destruction of scales on the fibres surface.…”

Section: Discussionmentioning

confidence: 99%

Innovative wool geotextiles designed for erosion protection

Broda

Gawłowski

Przybyło

et al. 2017

Journal of Industrial Textiles

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Innovative geotextiles built from meandrically arranged thick ropes were produced. For the production of the geotextiles, the strips of woollen nonwoven were used. The segments of the geotextiles were installed on the bank of a drainage ditch. The behaviour of the geotextiles during 1 year was observed. It was demonstrated that the geotextiles installed in the ditch provide immediate protection of the bank. In the soil-covered wool, the process of slow biodegradation was initiated. Because of a low biodegradation rate at the end of the growing season, when the protective vegetation was not well developed, the geotextiles maintained their protective potential. In the following months, the biodegradation led to further destruction of wool fibres. During the biodegradation, the organic compounds rich in nitrogen were released into the soil. In spring, at the beginning of new growing season, the compounds acted as effective fertilizers, promoting the growth of protective vegetation. The vegetation growing on the bank provided an effective protection and took over the protective function of the geotextiles.

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“…Natural fibres have inherent biodegradable properties and are an important consumer choice. A growing body of research into fibre biodegradation has led to investigations focussed on the biodegradation behavior of textile fibres, [2][3][4][5][6] including under composting conditions. 7,8 Wool is a biodegradable natural fibre which has been shown to provide nutritional value to soil through closed loop recycling of carpets, 9 in organic farming, 10 and has also been investigated as a geotextile to support the development of protective vegetation for erosion control.…”

mentioning

confidence: 99%

“…7,8 Wool is a biodegradable natural fibre which has been shown to provide nutritional value to soil through closed loop recycling of carpets, 9 in organic farming, 10 and has also been investigated as a geotextile to support the development of protective vegetation for erosion control. 2,3 Wool fabrics have been analyzed in experimental burials to evaluate chemical and biodegradation in an archaeological context, 11 as well as in large-scale composting. 8 Typical wool apparel textiles are subject to a wide range of chemical processes and finishes such as dyeing or shrink-resist treatments.…”

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confidence: 99%

Compostability of wool textiles by soil burial

Hodgson

Leighs

Koten

2023

Textile Research Journal

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Chemical processing has the potential to impact the composting of wool fabrics, influencing potential end of life options. The aim of this study was to investigate the comparative composting behaviors of a range of knitted and woven merino apparel fabrics. The range included scoured only control fabrics and variants which had undergone different chemical processes during manufacturing, including dyeing, bleaching, stain-repellence and various shrink-resist treatments. Biodegradation by composting was elicited by a soil-burial process incorporating three sets of randomized samples buried to a depth of 10 cm. Replicates were removed at regular intervals up to a maximum of 15 weeks burial. The dyes present in the fabric showed the greatest impact on composting. Chrome dyed samples exhibited only 60% mass loss over the trial period, whereas the other 10 fabrics all lost on average over 95%. When assessing easy care treatments, chlorine–Hercosett provided consistent initial resistance to decomposition. Soil burial test results suggested that chemical processing does impact the composting of wool fabrics, under the conditions of soil burial. Statistically significant longer-term effects were only observed for the chrome dyed sample. • Chemical processing of wool fabrics influences the onset of composting as a result of soil burial. • Dyeing fabrics had the greatest impact on the onset of composting as a result of soil burial. • Machine-washable wool has initial resistance to decomposition, compared with untreated wool, as a result of soil burial.

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Biodegradation of Wool Used for the Production of Innovative Geotextiles Designed to Erosion Control

Cited by 10 publications

References 4 publications

Innovative Geotextiles for Reinforcement of Roadside Ditch

Innovative Geotextiles for Reinforcement of Roadside Ditch

Innovative wool geotextiles designed for erosion protection

Compostability of wool textiles by soil burial

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