From waste to resource: A life cycle assessment of biochar from agricultural residue

Environmental Progress & Sustainable Energy, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 19, 2025

Abstract In recent years, biochar has emerged as a versatile product. Producing from agricultural residue is an environmentally friendly alternative to in‐situ burning, reducing the requirement for chemical fertilizers. This study presents comprehensive assessment of environmental impact production. Four feedstocks are compared – rice straw, palm shell, corn stover, and mixed crop residue. The cradle‐to‐gate system boundary comprises all stages production feedstock acquisition, transport pre‐treatment, Results show that main hotspots emissions electricity consumption during shell had highest on human health (4.889 kg PM 2.5 eq) ecosystem quality due high terrestrial aquatic acidification potential (159.600 SO 2 eq). Mixed greatest global warming (281.884 CO resource consumption. Corn stover straw moderate impacts, with contributing significantly ecotoxicity (2.2E+04 TEG water) impacting respiratory inorganics (3.545 eq), causes severe depletion resources, consuming 4339.672 MJ non‐renewable energy. These findings emphasize importance selecting low‐impact While impacts in midpoint categories like carcinogens, non‐carcinogens, ionizing radiation, toxicity, eutrophication, it lowest GWP. Rice resources. Finally, uncertainty analysis using Monte Carlo Simulation shows coefficient variation within ±10%, indicating results reliable.

Language: Английский

---

Biochar with further enhanced properties prepared by acid base combined pretreatment for removal of water pollutants

Scientific Reports, Journal Year: 2025, Volume and Issue: 15(1)

Published: June 3, 2025

In this work, garden waste Clivia miniata leaves (CL) were used as a feedstock to produce high performance biochar (BCL-K-H) through the pretreatment processes of alkali hydrolysis combined with acid hydrolysis. Specifically, CL is subjected two-step process destroy its dense wood fibre structure, and then product processed into by carbonation activation. The results demonstrated that physicochemical properties modified prepared altered in comparison those (BCL). specific surface area increased from 3052.12 3555.31 m2/g, total pore volume 1.94 2.91 cm3/g. characterisation BCL-K-H contained significant number reactive functional groups (e.g. hydroxyl, hydrocarbon carboxyl groups, etc.), which may provide substantial active sites during adsorption pollutants enhance performance. tetracycline hydrochloride (TH) synthetic dye Rhodamine B (RhB) studied gain insight biochars' maximum capacity for was found be 1436.56 mg/g 1505.47 (RhB). on accordance proposed second-order kinetic model Freundlich isotherm model. This finding suggests involve electron transfer between pollutant adsorbent, well heterogeneous surfaces. presence large etc.) within adsorbent material has been postulated pollutants, thereby enhancing Following 10 cycles, removal BCL remained above 60%. All data demonstrate pre-treatment biomass precursors effective feasible further improving biochar, thus providing new strategy development lignocellulosic waste.

Language: Английский

---

Valorization of viscose textile waste for the adsorptive removal of organophosphate pesticides from water

Journal of Water Process Engineering, Journal Year: 2024, Volume and Issue: 69, P. 106793 - 106793

Published: Dec. 16, 2024

Language: Английский

---

Multidimensional effects of green waste vermicomposting on cadmium contaminated soil ecosystems: From physicochemical properties to microbial communities

Journal of Hazardous Materials, Journal Year: 2024, Volume and Issue: 480, P. 136429 - 136429

Published: Nov. 7, 2024

Language: Английский

---