Engineered biochar/hydrochar derived from organic wastes for energy, environmental, and agricultural applications

Sharma, Hari Bhakta; Vanapalli, Kumar Raja; Bhatia, Deepika; Singh, Simranjeet; Arora, Gaurav; Panigrahi, Sagarika; Dubey, Brajesh K.; Ramamurthy, Praveen C.; Mohanty, Bijayananda

doi:10.1007/s10098-024-02863-6

Clean Techn Environ Policy

2024

DOI: 10.1007/s10098-024-02863-6

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Engineered biochar/hydrochar derived from organic wastes for energy, environmental, and agricultural applications

Hari Bhakta Sharma,

Kumar Raja Vanapalli,

Deepika Bhatia

et al.

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Cited by 3 publications

References 283 publications

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Co-pyrolysis of plastic waste and eucalyptus waste wood for fuel pellets production: A study of fuel, mechanical, and combustion characteristics under varying binder proportion

Samal,

Sharma,

Vanapalli

et al. 2024

Science of The Total Environment

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Co-pyrolysis of plastic waste and eucalyptus waste wood for fuel pellets production: A study of fuel, mechanical, and combustion characteristics under varying binder proportion

Samal,

Sharma,

Vanapalli

et al. 2024

Science of The Total Environment

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Biofortification of Cucumbers with Iron Using Bio-Chelates Derived from Spent Coffee Grounds: A Greenhouse Trial

Cervera-Mata,

Lara-Ramos,

Rufián-Henares

et al. 2024

Agronomy

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The transformation of spent coffee grounds (SCGs) into hydrochars has been extensively studied in recent years to explore their potential in biofortifying foods and mitigating the plant toxicity associated with SCGs. This study aimed to evaluate the effects of adding activated (ASCG and AH160) and functionalized SCGs, as well as SCG-derived hydrochars (ASCG-Fe and AH160-Fe), on cucumber production and plant iron content. To achieve this, SCGs and SCG-derived hydrochars activated and functionalized with Fe were incorporated into cucumber crops grown in a greenhouse over multiple harvests. Among the treatments, SCG-Fe proved to be the most promising for cucumber production, yielding an average of 25 kg of cumulative production per treatment across three harvests. Regarding iron content, the average results across all harvests showed that SCGs and functionalized SCG-hydrochars matched the performance of the commercial chelate (0.108 vs. 0.11 mg Fe/100 g fresh weight). However, in subsequent harvests, iron appeared to leach out, with the activated bio-products (ASCG and AH160) leaving the highest iron reserves in the soil. Additionally, the hydrochar activated at 160 °C demonstrated the highest utilization efficiency. In conclusion, the incorporation of SCG residues and second-generation residues (hydrochars) shows promise as agents for biofortifying cucumbers.

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Removal of Emerging Contaminants from Water by Using Carbon Materials Derived from Tingui Shells

dos Santos,

Moreira,

de Araújo

et al. 2024

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This study explored the adsorption of acetaminophen and caffeine using CO2-activated biochar (BT-CO2) and hydrochar (HT-CO2) derived from Tingui shell biomass. The experimental data from kinetic and equilibrium adsorption tests were employed in batch and fixed-bed systems. In the batch system, a specific amount of the adsorbent was added to a known volume of the solution, and the mixture was agitated for a set period to allow adsorption to occur. In the fixed-bed system, the solution was passed through a column packed with the adsorbent, allowing for continuous adsorption. These systems pave the way for future research. The findings revealed that HT-CO2 exhibited a greater surface area and a higher presence of oxygen-containing functional groups than BT-CO2. These functional oxygen groups had a notable impact on the adsorption capacity of the adsorbents for pharmaceutical substances. In the batch systems, BT-CO2 demonstrated a maximum adsorption capacity of 221.4 mg g−1 for acetaminophen and 162.7 mg g−1 for caffeine, while HT-CO2 exhibited higher capacities of 383.2 mg g−1 for acetaminophen and 189.7 mg g−1 for caffeine. In the fixed bed configuration, HT-CO2 displayed a maximum adsorption capacity of 82.2 mg g−1 for acetaminophen and 45.60 mg g−1 for caffeine. The predominant mechanisms involved in the removal of acetaminophen and caffeine were identified as H-bonding and π-π bonds. These results underscore the promising potential of these carbons as effective adsorbents for treating water contaminated with pharmaceutical residues, inspiring further exploration in this field and offering hope for the future of water treatment by providing a solid foundation for future research and development.

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Engineered biochar/hydrochar derived from organic wastes for energy, environmental, and agricultural applications

Cited by 3 publications

References 283 publications

Co-pyrolysis of plastic waste and eucalyptus waste wood for fuel pellets production: A study of fuel, mechanical, and combustion characteristics under varying binder proportion

Co-pyrolysis of plastic waste and eucalyptus waste wood for fuel pellets production: A study of fuel, mechanical, and combustion characteristics under varying binder proportion

Biofortification of Cucumbers with Iron Using Bio-Chelates Derived from Spent Coffee Grounds: A Greenhouse Trial

Removal of Emerging Contaminants from Water by Using Carbon Materials Derived from Tingui Shells

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