Thermo-mineralization of biomass for metal oxide recovery: A review

Bioresource Technology Reports, Journal Year: 2023, Volume and Issue: 24, P. 101664 - 101664

Published: Oct. 21, 2023

Language: Английский

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Comparative assessment of biochar produced from LDPE and neem leaves using batch and semi-batch biomass fuel-based reactors

Biofuels, Journal Year: 2023, Volume and Issue: 15(6), P. 677 - 687

Published: Nov. 10, 2023

This research aims to investigate and compare the properties of biochar derived from low-density polyethylene (LDPE) neem leaves, utilizing both batch semi-batch biomass fuel-based reactors for co-carbonization. While previous studies have primarily employed electrical-powered or reactors, this study introduces innovative approach a reactor, marking significant advancement in production. The co-carbonization process lasted ∼2 h batch-based system nearly 3 system. achieved higher temperature peaks comparison In terms yield, generated yield 30.35%, while yielded 17.3%. Through BET analysis, it was determined that produced using reactor had surface area 227 m2/g pore diameter 2.116 nm. Similarities differences functional groups among samples were identified through FTIR analysis. By EDX spectroscopy, observed contained seven elements, whereas semi-batch-reacted sample similar elements but lacked nitrogen, potassium, magnesium. exhibited an increased carbon content, concentrations other decreased when compared batch-reacted sample. can be applied various applications, including water treatment, energy conversion, storage. findings contribute sustainable waste management practices, sequestration efforts, development solutions industries.

Language: Английский

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Valorisation of bamboo stalk waste: eco-friendly synthesis and characterisation of activated carbon monolith

Indian Chemical Engineer, Journal Year: 2024, Volume and Issue: unknown, P. 1 - 14

Published: Aug. 21, 2024

In contemporary waste management, the escalating volumes of bamboo stalk present a pressing environmental challenge, necessitating innovative and sustainable solutions. This research examined properties activated carbon monolith (ACM) derived from (BS) using facile method. Polystyrene resin KOH were employed as an eco-binder activator in synthesis, respectively. Analytical methods to characterise mechanical, morphological, elemental, textual profiles obtained. The study's results indicated creation characterised by rough, amorphous shape firmly secured binder. It revealed BET surface area measuring 265 m2/g pore diameter 2.8 nm. displayed various irregular void pores, forming mesoporous morphological network, along with sporadically distributed slivery-white dot-like particles on its heterogeneous surface. EDX analysis also BS-ACM is largely composed (77%), potassium (11%), oxygen (8%), trace amounts aluminium, gold, iron, plutonium. compressive strength test peak force 21,536 N before any significant signs appreciable deformation observed, subsequent estimation Young's modulus at 8.34 MPa. Beyond advancing valorisation, aligns circular economy principles practices, presenting promising pathway for developing eco-friendly materials contributing more resource-efficient future.

Language: Английский

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A critical review of biochar versus hydrochar and their application for H2S removal from biogas

Reviews in Environmental Science and Bio/Technology, Journal Year: 2024, Volume and Issue: 23(3), P. 699 - 737

Published: Aug. 21, 2024

Abstract Biogas contains significant quantities of undesirable and toxic compounds, such as hydrogen sulfide (H 2 S), posing severe concerns when used in energy production-related applications. Therefore, biogas needs to be upgraded by removing H S increase their bioenergy application attractiveness lower negative environmental impacts. Commercially available upgradation processes can expensive for small medium-scale production plants, wastewater treatment facilities via anaerobic digestion process. In addition, an all-inclusive review detailing a comparison biochar hydrochar removal is currently unavailable. the current study aimed critically systematically biochar/hydrochar from biogas. To achieve this, first part discussed technologies properties vs. hydrochar. exisiting adsorption mechanisms, namely physical adsorption, reactive chemisorption, responsible with char materials were discussed. Also, factors, including feedstock type, activation strategies, reaction temperature, moisture content, other process parameters that could influence behaviour are summarised. Finally, synergy trade-offs between sectors techno-economic feasibility using presented. Biochar’s excellent structural coupled alkaline pH high metal facilitate physisorption chemisorption pathways removal. case hydrochar, occurs mainly which attributed well-preserved surface functional groups. Challenges commercial adsorbents stream highlighted perspectives future research provided. Graphical abstract

Language: Английский

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Evaluation of physico-chemical characteristics of biochar produced from red bell pepper waste biomass

Clean Technologies and Environmental Policy, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 3, 2025

Language: Английский

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