2020
DOI: 10.3390/su12125197
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Perspectives of Using Lignin as Additive to Improve the Permeability of In-Situ Soils for Barrier Materials in Landfills

Abstract: Very often, in-situ soil does not meet the requirements for landfill barriers; therefore, it is necessary to purchase the material from quarries. An increasing number of by-products have been proposed as alternative landfill barrier materials. The present study investigated the performance of two soils of Central Italy (alluvial and volcanic soils) with an organosolv lignin (sulfur-free lignin (SFL)), a widespread by-product in the world. Laboratory investigations indicated that the volcanic soil mixed with 10… Show more

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Cited by 7 publications
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“…Ecofriendly electrochemical biosensors have been synthesized from kraft lignin nanoparticles [ 13 ]. Organosolv lignin has been affirmed to enhance the permeability features of in situ soils [ 14 ].…”
Section: Introductionmentioning
confidence: 99%
“…Ecofriendly electrochemical biosensors have been synthesized from kraft lignin nanoparticles [ 13 ]. Organosolv lignin has been affirmed to enhance the permeability features of in situ soils [ 14 ].…”
Section: Introductionmentioning
confidence: 99%
“…At present, lignin is mainly produced as a by-product of the paper and wood industries, and ethanol production [19]. According to statistics, the annual production of lignin from different biomass separation processes is about 70 million tons [20], and the Chinese paper industry produces about 50 million tons of lignin by-products every year [12]. Lignin contains a variety of active functional groups, such as methoxyl, phenolic hydroxyl, and benzyl alcohol groups, with certain binding properties [21].…”
Section: Introductionmentioning
confidence: 99%