An experimental investigation on the effect of soluble sugar degradation on the of domestic-source-contaminated soil sites formation and evolution

Guo, Yuliang; Cao, Liwen; Sang, Shuxun; Zhang, Rui

doi:10.1016/j.envpol.2022.120613

Cited by 2 publications

(2 citation statements)

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“…The test used glucose analytically pure (AR) reagent, purchased from Tianjin Kermel Chemical Reagent Co., Ltd., Tianjin, China. The concentration of iron, chloride, and heavy metals in the reagent was less than 0.005%, which was negligible; the cauterized residue (as sulfate) was less than 0.05%, and the percentage of dry weight loss ranged from 7.5% to 9.1% [31].…”

Section: Materials (1) the Representative Soluble Sugar Of Domestic S...mentioning

confidence: 94%

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The Effect of Soluble Sugar Degradation on the Evaporation of Compacted Clay

Guo,

Cao,

Sang

et al. 2023

Water

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In arid climates, evaporation and water loss in surface soil can lead to the development of shrinkage cracks in the soil. The crack network in contaminated soil sites can become a rapid pathway for the infiltration and transport of contaminations, thereby increasing the range of soil contamination. Dense contaminated clay samples were prepared by using glucose as a representative soluble sugar of domestic source contaminations. Through indoor evaporation simulation tests, the effect of soluble sugar anaerobic degradation on the water loss, deformation, and crack growth of compacted clay was analyzed, and the mechanism of this effect was revealed. The results showed that glucose increased the water-holding capacity of clay, while the anaerobic degradation of glucose decreased the water-holding capacity of clay. Although glucose anaerobic degradation reduced the overall deformation of dense clay, it promoted the development of evaporative cracks on the surface of dense clay. Soluble sugar anaerobic degradation mainly affected the evaporative cracking of clay by “forming hydrogen bonds to reduce the rate of evaporative water loss in clay” and “generating CO2 to alter the structure of the clay”.

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Section: Materials (1) the Representative Soluble Sugar Of Domestic S...mentioning

confidence: 94%

“…Moreover, the soil contained a certain amount of alkaline oxides (K 2 O, Na 2 O, MgO, Fe 2 O 3 , and others.) [31].…”

Section: ) Claymentioning

confidence: 99%