Evaluating Biochar Impact on Topramezone Adsorption Behavior on Soil under No-Tillage and Rotary Tillage Treatments: Isotherms and Kinetics

Uwamungu, Jean Yves; Nartey, Obemah David; Uwimpaye, Fasilate; Dong, Wenxu; Hu, Chunsheng

doi:10.3390/ijerph16245034

Cited by 8 publications

(2 citation statements)

References 41 publications

(41 reference statements)

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“…Wu et al, reported that this kinetics model described the Pb (II) adsorption using biochar [57]. Furthermore, the same trend was reported in other studies [58,59]. The main advantage of using cyanobacterial biomass as a biosorbent source is that this application can resolve the eutrophication problems generated by cyanobacterial growth in the swamp of Malambo.…”

Section: Model Parameterssupporting

confidence: 64%

Cyanobacterial Biomass as a Potential Biosorbent for the Removal of Recalcitrant Dyes from Water

Díaz‐Uribe

Angulo

Patiño

et al. 2021

Water

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The accumulation of cyanobacteria produced due to eutrophication processes and the increment of different pollutants in water as a result of industrial processes affects aquatic environments such as the ocean, rivers, and swamps. In this work, cyanobacterial biomass was used as a biosorbent for the removal of a commercial dye, methylene blue (MB). Thus, MB was removed from biomass obtained from cyanobacterial samples collected from the swamp located in the Colombian Caribbean. Spectroscopical techniques such as FTIR, SEM, EDX measurements were used for the physico-chemical characterization of the bio-adsorbent material. Furthermore, we present the effect of various adsorption parameters such as pH, MB dose, time, and adsorbent concentration on the adsorbent equilibrium process. Three different isotherm models were used to model the MB adsorption on biomass. The functional groups identified on biomass suggest that these models are suitable for the characterization of the sorption of cationic dyes on the surfaces of the biomass; in addition, an SEM assay showed the heterogeneous surface of the biomass’ morphology. The equilibrium tests suggested a multilayer type adsorption of MB on the biomass surface. The kinetics results show that a pseudo-second order kinetic model was suitable to describe the MB adsorption on the biomass surface. Finally, the herein obtained results give an alternative to resolve the eutrophication problems generated by cyanobacterial growth in the swamp “Ciénaga de Malambo”.

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Section: Model Parameterssupporting

confidence: 64%

Cyanobacterial Biomass as a Potential Biosorbent for the Removal of Recalcitrant Dyes from Water

Díaz‐Uribe

Angulo

Patiño

et al. 2021

Water

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“…During 180 to 1440 min, the DEA adsorption rate of soil and BC soil slowed down, which illustrates that the adsorption process entered the slow stage. This was mainly because the DEA molecule was rapidly adsorbed by active adsorption sites on the surface of the soil and BC soil during the initial stage of the reaction (Uwamungu et al 2019). As the reaction progressed, active adsorption sites were gradually occupied by DEA, which then entered the micropore structure inside the biochar and soil for relatively slow micropore filling.…”

Section: Effects Of Biochar On Dea Adsorption Kinetics In Different Soil Typesmentioning

confidence: 99%

Effects of tall fescue biochar on the adsorption behavior of desethyl-atrazine in different types of soil

Shan

Fan

et al. 2021

BioRes

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Desethyl-atrazine (DEA) is a metabolite of atrazine that exerts a considerable influence on the environment. In this study, tall fescue biochar was prepared by pyrolysis at 500 °C, and batch experiments were conducted to explore its effect on the adsorption behavior of DEA in red soil, brown soil, and black soil. The addition of biochar increased the equilibrium amount of DEA adsorption for the three soil types. A pseudo-second-order kinetic model most closely fit the DEA adsorption kinetics of the three soils with and without biochar, with a determination coefficient (R2) of 0.962 to 0.999. The isothermal DEA adsorption process of soils with and without biochar was optimally described by the Freundlich and Langmuir isothermal adsorption models with R2 values of 0.98 and above. The DEA adsorption process in the pristine soil involved an exothermic reaction, which became an endothermic reaction after the addition of biochar. Partitioning was dominant throughout the entire DEA adsorption process of the three pristine soils. Conversely, in soils with biochar, surface adsorption represented a greater contribution toward DEA adsorption under conditions of low equilibrium concentration. The overall results revealed that the tall fescue biochar was an effective adsorbent for DEA polluted soil.

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Insights into the influences of biochar on the fate and transport of pesticides in the soil environment: a critical review

Twagirayezu,

Cheng,

et al. 2024

Biochar

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Pesticide misuse and overuse severely pollute agricultural soils, water, and crop yields, harming people and animals. This situation raises serious concerns about environmental pollution on a global scale. As an eco-friendly material for soil remediation, biochar can efficiently immobilize pesticides in the soil. Several studies have focused on the feasibility of biochar in remediating polluted soil. However, its influences during the remediation of pesticide-polluted soils remain indistinct. The present review illuminates the positive and negative influences of biochar on the dissemination of pesticides, the underlying mechanisms, the regulating factors, and critical considerations in the ongoing development of biochar for pesticide use. It also delineates the positive and negative impacts of biochar on pesticides in the soil, evaluates potential pitfalls based on recent research, and offers suggestions for prospective biochar applications crucial for remediating contaminated soil. This review reveals that the fate and types of pesticides, along with the physicochemical properties of soil and biochar types, can significantly influence the remediation of pesticide-polluted soil using biochar. Biochar has the potential to enhance the abundance of certain bacteria and the colonization of arbuscular mycorrhizal fungi, both of which play crucial roles in soil remediation. Biochar can also modify soil moisture, microbial communities, and other factors that impact the rate of pesticide degradation while simultaneously reducing other types of arbuscular mycorrhizal fungi. This review underscores the importance of thoroughly understanding the properties of biochar before its application to polluted soils. This review can serve as a basis for subsequent studies on the biochar-mediated remediation of contaminated soils. Graphical Abstract

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Evaluating Biochar Impact on Topramezone Adsorption Behavior on Soil under No-Tillage and Rotary Tillage Treatments: Isotherms and Kinetics

Cited by 8 publications

References 41 publications

Cyanobacterial Biomass as a Potential Biosorbent for the Removal of Recalcitrant Dyes from Water

Cyanobacterial Biomass as a Potential Biosorbent for the Removal of Recalcitrant Dyes from Water

Effects of tall fescue biochar on the adsorption behavior of desethyl-atrazine in different types of soil

Insights into the influences of biochar on the fate and transport of pesticides in the soil environment: a critical review

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