Investigation of cracking and water availability of soil-biochar composite synthesized from invasive weed water hyacinth

Bordoloi, Sanandam; Garg, Ankit; Sreedeep, S.; Lin, Peng; Mei, Guoxiong

doi:10.1016/j.biortech.2018.05.011

Cited by 111 publications

(41 citation statements)

References 61 publications

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“…Moreover, the presence of water-absorbing surface functional groups or bond in biochar holds the water inside of these pores especially in intrapores, i.e., the pores provide only spaces for storage and the functional group holds water in it. The trend of increased water retention in biochar-amended soil was reported by the previous researchers (Bordoloi et al 2018b;Ni et al 2018).…”

Section: Effect Of Biochar On Swrcsupporting

confidence: 76%

“…These have been extensively studied for loose soil suitable for agriculture (Major et al 2012;Ouyang et al 2013;de-Melo-Carvalho et al 2014;Prober et al 2014;Moragues-Saitua et al 2017;Chen et al 2019). However, limited studies are available for soil in geotechnical and geoenvironmental engineering structures, e.g., landfill cover (Wong et al 2017), bioengineered slopes and embankment (Bordoloi et al 2018b;Ni et al 2018) where soils often compacted, have higher design life and generate higher suction due to drying (Wall and Zeiss 1995;Harshani et al 2015). Wong et al (2017) reported an increased water retention of kaolin clay after amendment of peanut shell biochar.…”

Section: Introductionmentioning

confidence: 99%

“…Wong et al (2017) reported an increased water retention of kaolin clay after amendment of peanut shell biochar. Recently, Bordoloi et al (2018b) investigated the water retention and desiccation potential of sand amended with biochar derived from water hyacinth by measuring suction ranges from near saturation to wilting point. It was reported an increased water retention and decreased crack potential quantified by a crack intensity factor (CIF, defined as the ratio of total crack area to the total soil surface area considered).…”

Section: Introductionmentioning

confidence: 99%

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Effect of biochar type on infiltration, water retention and desiccation crack potential of a silty sand

Hussain

Bordoloi

Gupta

et al. 2020

Biochar

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Biochar is a carbon-rich material obtained after thermochemical conversion of biomass under no oxygen environment. The effect of biochar amendment on soil properties, such as water retention, infiltration and desiccation crack potential was studied in the recent years. However, the effect of biochar or feedstock type on these properties is not explicit. This study investigates the effect of two different (in terms of feedstock) types of biochar on the water retention, infiltration and desiccation cracking behavior of compacted silty sand. Water retention characteristics, infiltration rate and the progression of desiccation cracks were measured after compacting soil amended with 5-10% (w/w) biochar produced from water hyacinth (WHB) and mesquite. Measurements were also taken for an unpyrolyzed material coir pith (CP, sourced from coconut husk)-amended soil for comparing the results of biochar-amended soil. The results show that the amendment of 5% to 10% biochar increased the maximum water holding capacity (θ s), air entry value (AEV) and water content at 1500 kPa (θ 1500) of the soil, whereas decreased the infiltration rate and peak crack intensity factor (CIF) of the soil. Moreover, the application of CP increased the infiltration rate. The amendment of WHB showed the highest increment in AEV and θ 1500 and the highest decrement in infiltration rate and CIF compared to the other amendments. Based on the results, it is advisable to use the WHB-amended soil in bioengineered structures that could promote the growth of vegetation by higher water retention and could reduce the potential of leachate formation by decreasing water infiltration and desiccation crack potential.

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Section: Effect Of Biochar On Swrcsupporting

confidence: 76%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Effect of biochar type on infiltration, water retention and desiccation crack potential of a silty sand

Hussain

Bordoloi

Gupta

et al. 2020

Biochar

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“…Additionally, it can be understood that depending on the feedstock (crop residue or aquatic species) composition, i.e. cellulose, lignin, and hemi-cellulose content, the quality of the produced biochar can vary significantly [41,42].…”

Section: Ammonium Adsorption Kinetics Of Different Adsorbentsmentioning

confidence: 99%

Potential of Novel Biochars Produced from Invasive Aquatic Species Outside Food Chain in Removing Ammonium Nitrogen: Comparison with Conventional Biochars and Clinoptilolite

et al. 2019

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Previous studies for removal of ammonium from wastewater were mainly conducted using biochars produced from agricultural residue. Feedstock type (agricultural residue, wood, animal waste, and aquatic waste), as well as pyrolysis temperature, can significantly influence biochar properties and hence its adsorption capacity. Such studies are useful in decision making for selecting biochar depending on feedstock availability and pyrolysis temperature. This study aims to explore the effects of different types of biochar (laboratory prepared novel water hyacinth and algae biochar, conventional cedar wood, rice straw, and pig manure biochar) on the adsorption kinetics for ammonium removal from wastewater. The adsorption kinetics of biochars were compared to that of commercially available clinoptilolite and interpreted with their respective physicochemical properties (SEM, FTIR, XRD). Batch tests were performed to evaluate the effects of biochars on adsorption of ammonium nitrogen at different concentrations (10 mg/L and 100 mg/L). The tests reveal that clinoptilolite has the highest adsorption capacity. Among biochars, pig manure (animal based) biochar has a higher adsorption capacity in comparison to conventional agricultural residues based biochars. The capacity of pig manure biochar under highly concentrated ammonium solution (100 mg/L) is merely 20% lower than that of clinoptilolite. Both water hyacinth and algae biochar produced at higher temperature (600 °C) show higher sorption rate and capacity (depending on the initial concentration of ammonium) for ammonium in comparison to that produced at a lower temperature (300 °C). This is likely due to an increase in porosity at higher temperatures of pyrolysis.

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“…Over the past two decades, biochar has been utilized in diverse applications as a soil amendment because of its positive effects on soil water retention properties [10][11][12]. Several studies have substantiated that the addition of biochar in soil changes soil properties such as porosity, specific surface area, and surface properties, which in turn enhances the retention and mechanical parameters [13][14][15][16].…”

Section: Introductionmentioning

confidence: 99%

Dynamics of Biochar-Silty Clay Interaction Using In-House Fabricated Cyclic Loading Apparatus: A Case Study of Coastal Clay and Novel Peach Biochar from the Qingdao Region of China

Liu

Ganesan

et al. 2020

Sustainability

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Biochar has been recently investigated as an eco-friendly material in bio-engineered slopes/landfill covers. A majority of recent studies have focused on analyzing water retention behavior while very few have examined dynamic behavior (i.e., cyclic loading due to earthquake, wind, or wave) of biochar amended soil. As far as the authors are aware, there is no study on the dynamic behavior of biochar amended soils. Considering the above mentioned study as a major objective, field excavated soil was collected and mixed with in-house produced biochar from peach endocarps, at three amendment rates (5%, 10%, and 15%). The un-amended bare soil and biochar amended soil were imposed to a cyclic load in a self-designed apparatus and the corresponding stress-strain parameters were measured. Dynamic parameters such as shear modulus and damping ratio were computed and the results were compared between bare and biochar amended soil. Furthermore, the residual cyclic strength of each soil types were correlated with an estimated void ratio to understand the interrelation between dynamic loading responses and biochar amended soils. The major outcomes of this study show that the addition of biochar decreases the void ratio, thereby increasing the shear modulus and residual cyclic strength. However, the modulus and strength values attenuates after 15 cycles due to an increase in pore water pressure. In contrary, at higher amendment rates, Biochar Amended Soils (BAS) forms clay-carbon complex and decreases both shear modulus and residual cyclic strength.

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Investigation of cracking and water availability of soil-biochar composite synthesized from invasive weed water hyacinth

Cited by 111 publications

References 61 publications

Effect of biochar type on infiltration, water retention and desiccation crack potential of a silty sand

Effect of biochar type on infiltration, water retention and desiccation crack potential of a silty sand

Potential of Novel Biochars Produced from Invasive Aquatic Species Outside Food Chain in Removing Ammonium Nitrogen: Comparison with Conventional Biochars and Clinoptilolite

Dynamics of Biochar-Silty Clay Interaction Using In-House Fabricated Cyclic Loading Apparatus: A Case Study of Coastal Clay and Novel Peach Biochar from the Qingdao Region of China

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