Advances in ecological and health risks of biochar during environmental applications

Qin, Yaxin; Li, Guiying; An, Taicheng; Yang, Zhifeng

doi:10.1360/tb-2020-0617

Cited by 4 publications

(4 citation statements)

References 29 publications

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“…EPFRs are specific oxygen-containing radicals, such as hydroxyl, alkoxy, semi-quinone, and peroxy radicals, that are produced during the pyrolysis of biochar and transfer electrons to the transition metals (e.g., Fe, Cu, and Ni) in the biochar. EPFRs remain in a more stable state in systems formed by organic matter and particulate matter, resulting in the generation of a large number of EPFRs (Qin et al 2018(Qin et al , 2021. EPFRs cause oxidative stress in plants, inhibit seed germination, and damage plant rootstocks.…”

Section: Potential Harm To the Soil Environment Due To Biochar Applic...mentioning

confidence: 99%

“…EPFRs cause oxidative stress in plants, inhibit seed germination, and damage plant rootstocks. In addition, EPFRs induce oxidative reactions that lead to oxidative stress in soil microorganisms and cause damage to microbial communities (Qin et al 2021). Odinga et al (2020) showed that EPFRs in biochar could have a toxic effect on soil bacteria, reducing their activity and numbers and altering their community structure, which can inhibit the early germination stage of plants.…”

Section: Potential Harm To the Soil Environment Due To Biochar Applic...mentioning

confidence: 99%

“…Soil is a highly complex habitat that contains many soil microorganisms. It is important to investigate biochar's effects on these microorganisms' activities and the subsequent impacts on the soil environment and the sustainable development of agricultural production (Qin et al 2021. Biochar promotes the growth of microorganisms, thus increasing their numbers and abundance (Gou et al 2018).…”

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confidence: 99%

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Impacts and mechanisms of biochar on soil microorganisms

Huang¹,

Zhang²,

Tang³

et al. 2023

Plant Soil Environ.

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Biochar is a carbonaceous material derived from the pyrolysis of carbon-rich biomass that has attracted increasing research and attention because of its ability to enhance soil carbon storage, increase soil fertility, fix and transform pollutants in soil, and improve the soil environment. These enhancements directly or indirectly affect soil microorganisms' metabolic activities and community structure. This paper reviews the effects of biochar on soil physicochemical properties, enzyme activities, nutrients, contaminants, and related microbial activities. In addition, this work summarises the possible mechanisms involved in the interaction between biochar and microorganisms and the potential hazards associated with biochar use. Finally, this study aims to provide a theoretical basis for future related research.

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Section: Potential Harm To the Soil Environment Due To Biochar Applic...mentioning

confidence: 99%

Section: Potential Harm To the Soil Environment Due To Biochar Applic...mentioning

confidence: 99%

mentioning

confidence: 99%

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Impacts and mechanisms of biochar on soil microorganisms

Huang¹,

Zhang²,

Tang³

et al. 2023

Plant Soil Environ.

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“…Generally, the temperature of pyrolysis biomass is above 300℃, and hemicellulose and cellulose are basically decomposed into small molecular monomers through polymer depolymerization and other reaction processes. Therefore, the process of biochar formation in biomass pyrolysis products is basically related to the decomposition process of lignin [9].…”

Section: Formation Of Environmental Persistent Free Radicalsmentioning

confidence: 99%

Research Progress of Environmental Risk Substances in the Preparation of Biochar

Xu¹

2023

HSET

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Biochar is a kind of solid material containing high carbon, which is obtained from biomass such as agricultural and forestry wastes through photosynthesis in oxygen free or low oxygen environment and pyrolysis at high temperature. It has many advantages, such as wide source of raw materials, high specific surface area, developed pores, and high stability. With the wide application and promotion of biochar in various fields, some hazardous substances to the environment generated in its preparation process, such as heavy metals and metalloids, polycyclic aromatic hydrocarbons, persistent free radicals, soluble organics and metal cyanide, should also be focused on and studied. In this paper, three types of environmental risk substances (i.e. heavy metals, polycyclic aromatic hydrocarbons and persistent free radicals) are studied, and their harm to the environment and ecological are explored, as well as the prospects for future development. Through careful selection of raw materials and the optimization of preparation conditions, the toxicity and harm can be suppressed to some extent.

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Adsorption and recovery nutrient from the tail liquid of biohydrogen production by zeolite

Zhou,

Li,

et al. 2023

Environ Dev Sustain

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Advances in ecological and health risks of biochar during environmental applications

Cited by 4 publications

References 29 publications

Impacts and mechanisms of biochar on soil microorganisms

Impacts and mechanisms of biochar on soil microorganisms

Research Progress of Environmental Risk Substances in the Preparation of Biochar

Adsorption and recovery nutrient from the tail liquid of biohydrogen production by zeolite

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