Desiccation Cracks Mitigation Using Biomass Derived Carbon Produced from Aquatic Species in South China Sea

Mei, Guxiong; Kumar, Himanshu; Huang, He; Cai, Weiling; Reddy, Narala Gangadhara; Chen, Pei-Nan; Garg, Ankit; Ganeshan, Suriya Prakash

doi:10.1007/s12649-020-01057-7

Cited by 15 publications

(7 citation statements)

References 52 publications

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“…For crack intensity measurement, WB and PMB were mixed uniformly with lean clay in the presence of water (at OMC). Later, after 24 h of incubation, BAS was compacted at 65% of MDD in circular dishes with a dimension of 33 cm diameter × 0.7 cm height (Mei et al., 2020). Each biochar was mixed and compacted at 5 and 10% percent by weight.…”

Section: Materials and Methodologymentioning

confidence: 99%

“…Desiccation cracks can promote unfavorable conditions such as water infiltration, leaches leakage, reduction in soil strength, and increased water evaporation, which can compromise environmental as well as geohazard safety (Bora et al, 2020;Bordoloi et al, 2018;Kumar et al, 2020;Sadasivam and Reddy, 2015;Zong et al, 2014). In the last few decades, attempts have been made to reduce the risk occurred due to the desiccation cracks by using innovative amendments such as natural fibers, biopolymers, waste sludge, fly ash, and biochar (Acharya et al, 2017;Bordoloi et al, 2018;Hulugalle, 1996;Kumar et al, 2020;Mei et al, 2020;Tang et al, 2012). Among them, biochar is one of the most recent developments (Bordoloi et al, 2018(Bordoloi et al, , 2019 that has been promoted due to its benefit of carbon sequestration and slope stability.…”

Section: Introductionmentioning

confidence: 99%

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Influence of feedstock type and particle size on efficiency of biochar in improving tensile crack resistance and shear strength in lean clayey soil

Kumar

Huang

Mei

et al. 2021

International Journal of Damage Mechanics

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The development of tensile stress can cause desiccation cracks, further increasing infiltration and inducing instability in green infrastructure (slopes and landfill liners). Recent research has promoted the use of biochar (i.e., stable carbon with a life period of more than 500 years) as an eco-friendly material that can provide simultaneous benefits in reducing tensile stresses and crack development, aiming to enhance landfill cover longevity. However, there is a lack of guidelines and criteria for selecting biochar (feedstock type and particle size) as landfill cover material. This study aims to investigate the effects of biochar particle size and feedstock type on cracking of soil. Two contrasting feedstock types (i.e., pig manure-based and wood-based) have been selected for amendment on lean clay soil. Laboratory experiments were conducted to monitor the cracks. The results show that wood biochar (WB) is more efficient in crack reduction than pig manure biochar (PMB). Moreover, it has been observed that fine-grained biochar is more suspectable to cracks formation regardless of biochar type. The cohesion and internal friction angle of biochar are dependent on the surface morphology of biochar. WB has more angularity and sharp edges, which can increase interlocking in soil, thereby enhancing shear resistance and, hence, soil stability. The comprehensive study can help narrow down the selectivity of biochar and its specifications to mitigate cracks and enhance the strength of landfill cover.

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Section: Materials and Methodologymentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Influence of feedstock type and particle size on efficiency of biochar in improving tensile crack resistance and shear strength in lean clayey soil

Kumar

Huang

Mei

et al. 2021

International Journal of Damage Mechanics

Self Cite

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“…In the world, biomass can be obtained from various agricultural sources such as animals, plants, invasive weeds, food waste etc. [22].…”

Section: Methodsmentioning

confidence: 99%

Application of Carbonized Starches as Carbon Electrode Active Material Compared to Graphene Nanoplatelets-Based Anode in a Lithium-Ion Cell

Pigłowska

Kurc

Rymaniak

2021

Waste Biomass Valor

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The main aim of this research is the examination of the physicochemical properties and their impact on the electrochemical activity of carbon materials obtained from the starch of different botanical origin (SCs). The obtained materials are compared to graphene nanoplatelets (GNPs) of different particle sizes (5 and 25 µm) applied as an anode active material for high-performance lithium-ion cells. SCs were obtained via thermal carbonization and this process enables an obtainment of better sorption properties compared to GNPs. The excellent electrochemical properties are mainly attributed to the good DLi+ (3.03 × 10−13–7.64 × 10−11 cm2 s−1 for SCs and 7.60 × 10−13–5.42 × 10−12 cm2 s−1 for GNPs) and relatively small resistances (EIS). However, the primary focus is on the specific capacity and cyclability. The capacity retentions of CSC cycled at 1 mA g−1, 10 mA g−1, 50 mA g−1, 1 mA g−1 for 50 cycles are 98%, 99%, 96%, 94% with specific capacities equal to 820, 800, 790, 1000 mAh g−1, respectively. The 5GNPs and 25GNPs may present a much smaller reversible capacity of 650, 600 mAh g−1 at 10 mA g−1. The thermal modification process of starches is simple, safe and widely applied, providing new paths for rational engineering of anode materials for LIBs. Moreover, the applied materials are easily available worldwide and are promising in the well-known Green Chemistry aspect making the cells more biodegradable. Graphic Abstract

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“…Sun et al 7 added multicomponent content of polyacrylamide (PAM) to iron tailings at low dosage concentrations and demonstrated that PAM exerted a significant improvement effect on the water holding capacity of iron tailings and improved the infiltration capacity of iron tailings. Mei 14 and others reported that biochar helps to improve water holding capacity and that this capacity increases with increasing pyrolysis temperature. Zhang 15 and others demonstrated that with the increase of biochar addition, the internal pore distribution changed significantly and formed a large number of macropores and mesopores.…”

Section: Introductionmentioning

confidence: 99%

Impact of modifiers on soil–water characteristics of graphite tailings

Du,

Lu,

2024

Sci Rep

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To achieve integrated resource utilization of graphite tailings to improve their water-holding capacity, river silt and cow dung powder were added to graphite tailings as organic matter improvers. Improver ratios were designed using 4 g cow dung powder and 20, 30, and 50 g river silt. Soil–water characterization tests were performed using a combined tensiometer and filter paper method based on optimum density measurements. Analysis of the influence of river silt dosing on the soil–water characteristic curves of improved graphite tailing specimens was performed with data fitting using the Van Genuchten model. Here, we investigated the effect of river silt dosing on the internal pore structure and water-holding capacity of modified graphite tailing samples and verified the applicability of the model to graphite tailings. Our results demonstrate that the organic matter improver incorporated into graphite tailings can improve the internal structural compactness of graphite tailings, improving the water holding capacity. With an increase in river silt dosage, the saturated water content is larger, and the residual water content increases and then decreases. When river silt dosage is 30 g, the residual water content is the highest at a value of 3.32%. The van Genuchten model was highly accurate for assessing the graphite tailings. With an increase in river silt doping, the internal pore space first decreased and then increased, and the internal structure gradually became compact and loosened. The internal structure was in the optimal state in the experimental study when the dosage of cow dung powder was 4 g and the dosage of river silt was 30 g. The water holding capacity was optimal at this time. The results of this study provide a theoretical foundation for graphite-tailing-based mine reclamation and play a guiding role in exploring the value of the hydraulic characteristic index parameters when applying graphite tailings engineering.

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Desiccation Cracks Mitigation Using Biomass Derived Carbon Produced from Aquatic Species in South China Sea

Cited by 15 publications

References 52 publications

Influence of feedstock type and particle size on efficiency of biochar in improving tensile crack resistance and shear strength in lean clayey soil

Influence of feedstock type and particle size on efficiency of biochar in improving tensile crack resistance and shear strength in lean clayey soil

Application of Carbonized Starches as Carbon Electrode Active Material Compared to Graphene Nanoplatelets-Based Anode in a Lithium-Ion Cell

Impact of modifiers on soil–water characteristics of graphite tailings

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