Review on effect of biochar on soil strength: Towards exploring usage of biochar in geo-engineering infrastructure

Wani, Insha; Kushvaha, Vinod; Garg, Ankit; Kumar, Rakesh; Naik, Sambit Prasanajit; Sharma, Prabhakar

doi:10.1007/s13399-022-02795-5

Cited by 19 publications

(5 citation statements)

References 304 publications

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“…However, the biochar itself is often considerably smaller than the feedstock when the pyrolysis process causes shrinkage and attrition. The increased pyrolysis temperature enhances the tensile strength of the raw materials, resulting in biochar particles that are smaller in size (Albalasmeh et al 2020;Ahmed et al 2021;Wani et al 2022). The functional groups on the ionic charges, surface, and porous structure of biochar aid in the detoxification (Alrashidi et al 2020), physical adsorption (Zhang et al 2020a), complexation, mobilization-immobilization (Hu et al 2020), and co-precipitation (Deng et al 2019) of metal pollutants and support phytoremediation potential of the hyperaccumulator.…”

Section: Concerns About Biochar In the Environmentmentioning

confidence: 99%

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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Section: Concerns About Biochar In the Environmentmentioning

confidence: 99%

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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“…Higher pyrolysis temperatures enhance soil porosity, potentially due to organic matter decomposition and the formation of micropores [70,71]. The impact of biochar on soil porosity depends on soil texture and type, with coarse-textured soils showing a greater increase compared to fine-textured soils, likely due to their lower inherent porosity [72]. In sandy soils, biochar improves porosity by enhancing mechanical interactions with soil particles, leading to notable improvements [73].…”

Section: Improvement In Surface Area and Soil Porositymentioning

confidence: 99%

Biochar Application for Soil Quality Improvement: An Overview

Ali,

Baloch

et al. 2024

Environmental Sciences

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Soil as a renewable resource has a key role to play in sustainable crop production, soil management, and combating food insecurity. The overapplication of fertilizers in this regard has resulted in decreased soil health and productivity. Biochar application in this respect has received increasing attention of the scientific community due to its role in soil quality improvement. This is especially true in the face of global climate change and to the nature of biochar being a carbon (C)-rich compound. In this chapter, the potential of biochar to enhance soil quality attributes, particularly those pertaining to soil’s physical, chemical, and biological properties, is comprehensively reviewed. Special attention is directed toward the distinctive properties of biochars sourced from various feedstocks, elucidating their subsequent effects on soil quality. This sheds light on potential directions for future studies in this field.

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“…For instance, the moisture/water contents of softwood and hardwood bark significantly influence the surface chemistry of the resulting biochars (Xu et al, 2022). A low moisture content in maple bark results in a more graphite-like and polyaromatic char surface, possibly due to prolonged effective pyrolysis after water evaporation (Wani et al, 2022).…”

Section: Significance Of Feedstock Selection and Pyrolysis Conditions...mentioning

confidence: 99%

“…Table 3 presents data on these relationships. The pyrolysis temperature significantly affects the physicochemical characteristics of biochar, including functional groups, pH, and surface area, and its role as a soil amendment (Wani et al, 2022). Higher pyrolytic temperatures enhance volatile matter, pH, and carbonized fractions and reduce surface functional groups and cation exchange capacity (CEC).…”

Section: Significance Of Feedstock Selection and Pyrolysis Conditions...mentioning

confidence: 99%

Sustainable manufacture and application of biochar to improve soil properties and remediate soil contaminated with organic impurities: a systematic review

Rizwan,

Murtaza,

Zulfiqar

et al. 2023

Front. Environ. Sci.

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Biochar production and application have become increasingly popular in the past 15 years. Biochar, derived from diverse biomass types, offers a rich carbon source created through thermal combustion. Biochar production primarily depends on pyrolysis conditions and feedstock type. This review focuses on the multifaceted aspects of biochar, encompassing hydrothermal carbonization, gasification, and pyrolysis temperatures in biochar production and its role in bioeconomy and soil remediation. Biochar has yielded valuable insights, notably in decreasing nutrient leaching, curbing greenhouse gas (GHG) emissions, reducing the bioavailability of environmental pollutants, sequestering carbon (C) in soils, and enhancing agricultural productivity. Consequently, it has emerged as a valuable commodity for the bioeconomy, which involves harnessing bioresources through bioengineering to create economically valuable products. As a marketable output, biochar finds application in energy, diverse biochar-based product manufacturing, and the agricultural sector. Thus, biochar production not only enhances soil quality but also unlocks additional revenue streams. This review underscores the critical role of feedstock selection and pyrolysis conditions in optimizing biochar production. Furthermore, it highlights biochar as a sustainable and effective tool for improving various soil types and remediating soil contamination caused by organic impurities, including persistent organic compounds and antibiotics.

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Review on effect of biochar on soil strength: Towards exploring usage of biochar in geo-engineering infrastructure

Cited by 19 publications

References 304 publications

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

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

Biochar Application for Soil Quality Improvement: An Overview

Sustainable manufacture and application of biochar to improve soil properties and remediate soil contaminated with organic impurities: a systematic review

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