Designing biochar properties through the blending of biomass feedstock with metals: Impact on oxyanions adsorption behavior

Dieguez-Alonso, Alba; Anca-Couce, Andrés; Frišták, Vladimír; Moreno-Jiménez, Eduardo; Bacher, Markus; Bucheli, Thomas D.; Cimó, Giulia; Conte, Pellegrino; Hagemann, Nikolas; Haller, Andreas; Hilber, Isabel; Husson, Olivier; Kammann, Claudia; Kienzl, Norbert; Leifeld, Jens; Rosenau, Thomas; Soja, Gerhard; Schmidt, Hans‐Peter

doi:10.1016/j.chemosphere.2018.09.091

Cited by 49 publications

(29 citation statements)

References 26 publications

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“…Phosphates are probably one of the principal causes of the eutrophication of surface waters [110][111][112][113]. Trazzi et al [114] reported the use of a Miscanthus biochar produced at 700 • C for removing phosphates and segregating them into the soil, thus improving their agronomic performances and reducing algae proliferation.…”

Section: Environmental Remediation Applicationsmentioning

confidence: 99%

A Review of Non-Soil Biochar Applications

et al. 2020

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Biochar is the solid residue that is recovered after the thermal cracking of biomasses in an oxygen-free atmosphere. Biochar has been used for many years as a soil amendment and in general soil applications. Nonetheless, biochar is far more than a mere soil amendment. In this review, we report all the non-soil applications of biochar including environmental remediation, energy storage, composites, and catalyst production. We provide a general overview of the recent uses of biochar in material science, thus presenting this cheap and waste-derived material as a high value-added and carbonaceous source.

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Section: Environmental Remediation Applicationsmentioning

confidence: 99%

A Review of Non-Soil Biochar Applications

et al. 2020

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“…The method of SSA determination by liquid N 2 adsorption on biochar surface at a lower temperature (77 K) indicates the total specific surface area [109]. The method of CO 2 adsorption at a relatively high temperature (273 K) reflects the surface area of pores < 1.5 nm [110]. Micháleková-Richveisová et al [91] and Dieguez-Alonso et al [110] discussed the effect of pyrolysis temperature on porous structure formation and thus surface area development.…”

Section: New Sorption Materials Produced With Pyrolysismentioning

confidence: 99%

“…The method of CO 2 adsorption at a relatively high temperature (273 K) reflects the surface area of pores < 1.5 nm [110]. Micháleková-Richveisová et al [91] and Dieguez-Alonso et al [110] discussed the effect of pyrolysis temperature on porous structure formation and thus surface area development. Zama et al [111] produced biochar from Morus alba at temperatures of 350 • C and 550 • C and confirmed more than 3.5 times higher SSA at the higher temperature.…”

Section: New Sorption Materials Produced With Pyrolysismentioning

confidence: 99%

The Use of Biochar and Pyrolysed Materials to Improve Water Quality through Microcystin Sorption Separation

Frišták

Laughinghouse

Bell

2020

Water

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Harmful algal blooms have increased globally with warming of aquatic environments and increased eutrophication. Proliferation of cyanobacteria (blue-green algae) and the subsequent flux of toxic extracellular microcystins present threats to public and ecosystem health and challenges for remediation and management. Although methods exist, there is currently a need for more environmentally friendly and economically and technologically feasible sorbents. Biochar has been proposed in this regard because of its high porosity, chemical stability, and notable sorption efficiency for removing of cyanotoxins. In light of worsening cyanobacterial blooms and recent research advances, this review provides a timely assessment of microcystin removal strategies focusing on the most pertinent chemical and physical sorbent properties responsible for effective removal of various pollutants from wastewater, liquid wastes, and aqueous solutions. The pyrolysis process is then evaluated for the first time as a method for sorbent production for microcystin removal, considering the suitability and sorption efficiencies of pyrolysed materials and biochar. Inefficiencies and high costs of conventional methods can be avoided through the use of pyrolysis. The significant potential of biochar for microcystin removal is determined by feedstock type, pyrolysis conditions, and the physiochemical properties produced. This review informs future research and development of pyrolysed materials for the treatment of microcystin contaminated aquatic environments.

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“…Apart from oxidative activations, surface modifications with metals have also proven to be useful for increasing the sorption potential of biochar for environmental contaminants, including anions which pose a risk for surface water eutrophication [31][32][33]. Biochar's longevity in the soil makes it a useful tool in carbon sequestration, although the long-term impacts on Cu immobilization are not yet fully understood [34,35].…”

Section: Introductionmentioning

confidence: 99%

Temporal Changes in the Efficiency of Biochar- and Compost-Based Amendments on Copper Immobilization in Vineyard Soils

et al. 2019

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Copper (Cu)-based fungicides have been an important tool against disease in viticulture since the 19th century. However, their prolonged use can lead to Cu accumulation in the soil and negatively affect soil microbiology and plant growth. The application of biochar (BC)-based amendments is a promising mitigation strategy, due to BC’s longevity in the soil and its potential to complex Cu. This study investigated temporal changes in the efficiency of various compost- and BC-based amendments to immobilize Cu in a calcareous and a slightly acidic Austrian vineyard soil. The immobilization of both historically accumulated Cu and freshly spiked Cu (250 mg kg−1) was studied. The soils were treated with six combinations of amendments containing compost and BC, with and without surface modification, as well as an additional lime treatment for the acidic soil. After treatment, the soils were incubated for 6 weeks and 3 years, after which the 0.01 M CaCl2-extractable Cu was measured. The amendments were not effective in reducing the mobility of the historically accumulated Cu in the calcareous soil, with pure compost doubling the soluble Cu. Pure wood-chip BC was the only organic amendment that led to a reduction (by 20%) of soluble Cu after 6 weeks in the acidic soil; however, after 3 years, the same amendment reduced soluble Cu by 40% and all other tested amendments were also effective in reducing the mobility of the historically accumulated Cu. The lime treatment achieved the greatest reduction in Cu mobility (56%). Freshly spiked Cu was strongly immobilized in both unamended soils, with 0.06% and 0.39% extractable after 6 weeks in the calcareous and slightly acidic soil, respectively. The amendments did not effectuate additional Cu immobilization in the calcareous soil, but in the acidic soil, the soluble Cu was further reduced to between 25% and 50% of the unamended control by the tested organic amendments and to 6% by the lime treatment after 6 weeks of incubation. Overall, the acidic soil exhibited a stronger response to the amendments than did the calcareous soil, suggesting the amendments’ effect on the soil pH was an important factor for Cu immobilization in this study. These results show the importance of developing site-specific remediation strategies for Cu accumulation in agricultural soils.

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Designing biochar properties through the blending of biomass feedstock with metals: Impact on oxyanions adsorption behavior

Cited by 49 publications

References 26 publications

A Review of Non-Soil Biochar Applications

A Review of Non-Soil Biochar Applications

The Use of Biochar and Pyrolysed Materials to Improve Water Quality through Microcystin Sorption Separation

Temporal Changes in the Efficiency of Biochar- and Compost-Based Amendments on Copper Immobilization in Vineyard Soils

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