Biodegradation of sheep wool geotextiles

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

doi:10.1016/j.ibiod.2016.07.012

Cited by 51 publications

(28 citation statements)

References 25 publications

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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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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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“…Basic characteristic of the experimental sites is presented in Table 1. More details concerning the site characteristic and installation procedure were presented in the previous publications [60][61][62][63][64][65].…”

Section: Installation Sitesmentioning

confidence: 99%

Biodegradation of Sheep Wool Geotextiles Designed for Erosion Control

Broda¹

2019

Environmental Chemistry and Recent Pollution Control Approaches

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Wool geotextiles were formed from the meandrically arranged thick ropes and used as erosion control products. The geotextiles were installed in the experimental sites to protect the endangered slopes and the bank of ditches. Additionally, as a reinforcement of the soil, loose wool fibres were applied. The progress of wool biodegradation on the slope was investigated. Changes in the outer appearance, mechanical parameters, molecular structure and fibre morphology were analysed. Moreover, the nitrogen content in the soil and the effect of compounds released into soil on the grass growth were studied. The measurements revealed that the biodegradation starts at the cleavage of disulphide bonds, followed by disruption of the peptide bonds. Degradation is initiated in the outer cuticle and is followed by the decomposition of the inner cortical cells. During biodegradation, the nitrogen-rich compounds are released. The compounds act as an effective fertiliser which supports the growth of grass and significantly accelerates the greening of the slope.

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“…Wool mat geotextiles are widely adopted for soil conservation. In fact, they allow for minimal evaporation and provide thermal protection, thus facilitating seed germination (Broda et al, 2016). Also, during its slow degradation, wool supplies vegetation and microorganisms with nutrients (Queiroga et al, 2012).…”

Section: Biodegradable Geotextilesmentioning

confidence: 99%

Field studies on the soil loss reduction effectiveness of three biodegradable geotextiles

Tauro

Cornelini

Grimaldi

et al. 2018

J Agricult Engineer

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Biodegradable geotextiles have the potential to significantly reduce soil loss and ensure slope stability in areas at risk. Here, we focus on three biodegradable textiles (namely, jute net, jute mat, and wool mat), and study their response in terms of soil loss to diverse precipitation events (average rainfall intensity from 3.7 mmh−1 to 70 mmh−1 and duration from 0.5 h to 11.6 h). Experiments are conducted in an ad hoc developed outdoor steep slope (more than 60%). Soil loss reduction from the treatments is found to be very remarkable (up to 98%), thus supporting the potential of natural materials for soil conservation. Also, experimental findings confirm that the maximum intensity of rainfall events plays an important role in driving soil erosion.

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Biodegradation of sheep wool geotextiles

Cited by 51 publications

References 25 publications

Innovative wool geotextiles designed for erosion protection

Innovative wool geotextiles designed for erosion protection

Biodegradation of Sheep Wool Geotextiles Designed for Erosion Control

Field studies on the soil loss reduction effectiveness of three biodegradable geotextiles

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