Application potential of biochar in environment: Insight from degradation of biochar-derived DOM and complexation of DOM with heavy metals

Huang, Mei; Li, Zhongwu; Luo, Ninglin; Ren, Yang; Wen, Jiajun; Huang, Bin; Zeng, Guangming

doi:10.1016/j.scitotenv.2018.07.282

Cited by 223 publications

(47 citation statements)

References 69 publications

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“…For instance, Kim et al (2018) investigated the effects of biochar DOM on the mobility of arsenic (As) in soil and concluded that biochar produced at low temperature (300°C) could release a large amount of DOM and enhance the reductive dissolution of Fe and the mobilization of As. Regarding the intrinsic interaction between biochar-derived DOM and heavy metals, Huang et al (2019) compared the Cu and Cd binding behavior of different DOM components derived from rice straw biochar and found that the metalbinding sequence was highly related to both heavy metal elements and DOM components. However, studies regarding the temperature-dependent metal-binding behavior of biocharderived DOM and the relations to their molecular structures under different pyrolysis temperatures are still limited.…”

Section: Introductionmentioning

confidence: 99%

Limited Cu(II) binding to biochar DOM: Evidence from C K-edge NEXAFS and EEM-PARAFAC combined with two-dimensional correlation analysis

Wei

Yuan

Zhou

et al. 2020

Science of The Total Environment

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Section: Introductionmentioning

confidence: 99%

Limited Cu(II) binding to biochar DOM: Evidence from C K-edge NEXAFS and EEM-PARAFAC combined with two-dimensional correlation analysis

Wei

Yuan

Zhou

et al. 2020

Science of The Total Environment

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“…water samples, n = 40; soil samples, n = 156; and plant samples, n = 45) to avoid mixing fluorescence components in the multifarious samples. Outlier removal, residual analysis, split‐half analysis and validation, and random initialization analysis were applied to determine the optimal number of fluorescence components (Huang et al, ). More detailed information on the PARAFAC analysis approach is given by Stedmon and Bro ().…”

Section: Methodsmentioning

confidence: 98%

“…EEM fluorescence was applied using a fluorescence spectrophotometer (Hitachi F‐7000; Japan) as described by Huang et al (). EEMs was performed by scanning emission (Em) wavelengths over a range of 250–600 nm at 2‐nm increments with excitation (Ex) wavelengths from 200 to 500 nm at 5‐nm increments.…”

Section: Methodsmentioning

confidence: 99%

“…The horizontal dges of the boxes denote the 25th and 75th percentiles, the whiskers denote the 10th and 90th percentiles, and black forks represent outliers. Different letters in the plots indicate significant differences of average values among the different land use types at p < .05 level based on one-way ANOVA determine the optimal number of fluorescence components (Huang et al, 2019). More detailed information on the PARAFAC analysis approach is given by Stedmon and Bro (2008…”

Section: Optical Measurements and Analysesmentioning

confidence: 99%

“…Component 2 (C2) (Ex/Em = 250/406) was a ubiquitous terrestrial humic-like fluorophore of low molecular size (Peak A) (Coble, 1996(Coble, , 2007. Component 3 (C3) (Ex/Em = 220, (280)/420) resembled C1 (Ex/Em = 240, 290/420) described by Huang et al (2019), which was classified as a microbial humic-like substance. The F max values of these three fluorescent components were found to be higher in forests and grasslands than in agricultural lands and gullies (Figure 3a).…”

Section: Weom Characteristics Of Soils and Vegetationmentioning

confidence: 99%

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Dissolved organic matter in surface runoff in the Loess Plateau of China: The role of rainfall events and land‐use

Hao

Xie

et al. 2020

Hydrological Processes

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Exploring the chemical characterization of dissolved organic matter (DOM) is important for understanding the fate of laterally transported organic matter in watersheds. We hypothesized that differences in water‐extractable organic matter (WEOM) in soils of varying land uses and rainfall events may significantly affect the quality and the quantity of stream DOM. To test our hypotheses, characteristics of rainfall‐runoff DOM and WEOM of source materials (topsoil from different land uses and gullies, as well as typical vegetation) were investigated at two adjacent catchments in the Loess Plateau of China, using ultraviolet–visible absorbance and excitation emission matrix fluorescence with parallel factor analysis (PARAFAC). Results indicated that land‐use types may significantly affect the chemical composition of soil WEOM, including its aromaticity, molecular weight, and degree of humification. The PARAFAC analysis demonstrated that the soils and stream water were dominated by terrestrial/allochthonous humic‐like substances and microbial transformable humic‐like fluorophores. Shifts in the fluorescence properties of stream DOM suggested a pronounced change in the relative proportion of allochthonous versus autochthonous material under different rainfall patterns and land uses. For example, high proportions of forestland could provide more allochthonous DOM input. This study highlights the relevance of soils and hydrological dynamics on the composition and fluxes of DOM issuing from watersheds. The composition of DOM in soils was influenced by land‐use type. Precipitation patterns influenced the proportion of terrestrial versus microbial origins of DOM in surface runoff. Contributions of allochthonous, terrestrially derived DOM inputs were highest from forested landscapes.

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Biochar production: A sustainable solution for crop residue burning and related environmental issues

Khare

Deshmukh

Yadav

et al. 2020

Env Prog and Sustain Energy

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The crop residue burning poses a threat to the environment and human health due to the emission of toxic gasses and particulate matter. This study examines the possibility of biochar production from corp residue and its utilization as a soil fertility enhancer and alternative fuel as a sustainable solution. The estimations of the total biochar production from major crop residues produced (wheat, rice, sugarcane, and maize) in India and the evaluation of its impact on CO2 sequestration potential, nutrient sequestration, and improvement in crop yield were made with the available data. The estimations indicate that the biochars produced from crop residue could have high carbon (45–83%), nutrients (N: 0.3–3.2 g/kg%, P: 0.1–7.99 g/kg and K: 2.64–224 g/kg), cation exchange capacity (10.9–97.3cmol/kg), water holding capacity (41–561%) with high heat value (15–28 MJ/kg). On applying crop residue derived biochar in soil, the revenue can be generated through CO2 sequestration ($0.29–3.63 million per year) and enhancement in crop productivity (0.02–0.94 million $/ha/year). The study advises that the production of biochar from crop residue could be beneficial not only for the environment but also for the farmers. Technological developments for biochar production at farmer levels are needed to discontinue the crop residue burning in India.

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Application potential of biochar in environment: Insight from degradation of biochar-derived DOM and complexation of DOM with heavy metals

Cited by 223 publications

References 69 publications

Limited Cu(II) binding to biochar DOM: Evidence from C K-edge NEXAFS and EEM-PARAFAC combined with two-dimensional correlation analysis

Limited Cu(II) binding to biochar DOM: Evidence from C K-edge NEXAFS and EEM-PARAFAC combined with two-dimensional correlation analysis

Dissolved organic matter in surface runoff in the Loess Plateau of China: The role of rainfall events and land‐use

Biochar production: A sustainable solution for crop residue burning and related environmental issues

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