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Tackiness of a biodegradable binder for erosion control mulch
Authors: Dueck, Clifford James, Cenkowski, Stefan
Identifier: CSBE18151
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Published in: CSBE-SCGAB Technical Conferences » AGM Guelph 2018
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Description: Soil erosion control often involves hydroseeding with mulch and temporary tackifying agents to bind soil particles until the seedlings can establish a root system. The use of biodegradable by-products of two industries was investigated for their potential as tackifiers. Kraft lignin, acidic (LA) and alkaline (LB) types, by-products of pulp manufacturing were mixed with crude glycerol a by-product of biodiesel production and humic acid to produce a mulch tackifier for soil erosion control. Lignin was dried at 70ºC for 24 h before use. The study was a full factorial with lignin levels of 20, 50, and 80% and humic acid levels of 1, 2, and 5% w/w. The remaining portion consisted of crude glycerol. The samples were homogenized using water to facilitate the homogenization process. After homogenization, the samples were left to settle for 36 h and then separated into solid and liquid portions. Both portions were dried at 70ºC for 24 h and tested for tack after wetting with water. Dried lignin without glycerol or humic acid was also tested for tack. The values for tack strength were compared to those obtained from a commercial tackifier. It was found that both lignin types provided sufficient tack to produce a tackifier. Acidic lignin could be used with lignin content ?50% and alkaline lignin with lignin content ?80%. Acidic lignin was found to be comparable to the commercial tackifier, whereas, alkaline lignin was found to have significantly more tack than either the commercial tackifier or tackifier made with acidic lignin.
Keywords: Soil Management: Soil Erosion Control
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Date: 2018-07-22
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Conference name: CSBE/SCGAB 2018 Annual Conference, School of Engineering, University of Guelph, Guelph, Ontario, July 22-25 2018.
Session name: Soil and Water Management IV
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Type: Text.Article
Format:
Publication type: Technical conference
Source:
Relation:
Coverage: Canada
Language 1: en
Language 2:
Rights: Canadian Society for Bioengineering
Notes:
Other files:
DOI:
Description: Soil erosion control often involves hydroseeding with mulch and temporary tackifying agents to bind soil particles until the seedlings can establish a root system. The use of biodegradable by-products of two industries was investigated for their potential as tackifiers. Kraft lignin, acidic (LA) and alkaline (LB) types, by-products of pulp manufacturing were mixed with crude glycerol a by-product of biodiesel production and humic acid to produce a mulch tackifier for soil erosion control. Lignin was dried at 70ºC for 24 h before use. The study was a full factorial with lignin levels of 20, 50, and 80% and humic acid levels of 1, 2, and 5% w/w. The remaining portion consisted of crude glycerol. The samples were homogenized using water to facilitate the homogenization process. After homogenization, the samples were left to settle for 36 h and then separated into solid and liquid portions. Both portions were dried at 70ºC for 24 h and tested for tack after wetting with water. Dried lignin without glycerol or humic acid was also tested for tack. The values for tack strength were compared to those obtained from a commercial tackifier. It was found that both lignin types provided sufficient tack to produce a tackifier. Acidic lignin could be used with lignin content ?50% and alkaline lignin with lignin content ?80%. Acidic lignin was found to be comparable to the commercial tackifier, whereas, alkaline lignin was found to have significantly more tack than either the commercial tackifier or tackifier made with acidic lignin.
Keywords: Soil Management: Soil Erosion Control
Résumé:
Mots-clés:
Citation:
Volume:
Issue:
Pages -
Contributor:
Date: 2018-07-22
Technical field:
Conference name: CSBE/SCGAB 2018 Annual Conference, School of Engineering, University of Guelph, Guelph, Ontario, July 22-25 2018.
Session name: Soil and Water Management IV
Other information:
Type: Text.Article
Format:
Publication type: Technical conference
Source:
Relation:
Coverage: Canada
Language 1: en
Language 2:
Rights: Canadian Society for Bioengineering
Notes:
Other files:
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