Environmental impacts of food waste management technologies: A critical review of life cycle assessment (LCA) studies

Trends in Food Science & Technology, Год журнала: 2023, Номер 143, С. 104287 - 104287

Опубликована: Дек. 6, 2023

Язык: Английский

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Efficient removal of hexavalent chromium from wastewater using a novel magnetic biochar composite adsorbent

Journal of Water Process Engineering, Год журнала: 2024, Номер 66, С. 105908 - 105908

Опубликована: Авг. 7, 2024

Hexavalent chromium (Cr(VI)) in wastewater poses serious environmental and ecological risks. A novel Fe3O4-loaded magnetic biochar (MBC) using Acacia falcata leaf powder was synthesized via one-step hydrothermal carbonization for efficient Cr(VI) removal. FESEM images revealed porous, irregular structures, EDS analysis confirmed Fe, O, C, Cr presence, validating adsorption. XRD indicated a lattice parameter of 0.8407 nm, characteristic magnetite nanoparticles, with an average crystallite size 11.29 nm. MBC exhibited superparamagnetic behavior facilitating easy separation. The deconvolution XPS spectra distinct peaks at 575.6 585.7 eV, corresponding to Cr(III), 577.3 587.8 Cr(VI), thereby confirming the dual roles reduction Batch adsorption followed pseudo-second-order Hill models, highlighting physisorption mechanisms. At pH 2, 303 K, 0.4 g/L, achieved saturation capacity 36.15 mg/g. Thermodynamic endothermic, spontaneous Desorption studies reversible ion exchange. 0.1 M NaOH showed better regeneration ability compared 0.5 solution. Phosphate ions reduced other competing ions. significant potential remediation by effectively removing from various water sources, achieving results comparable distilled water. Sustainable synthesis A. offers promising solution removal, addressing critical challenges.

Язык: Английский

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Implications of climate change on water quality and sanitation in climate hotspot locations: A case study in Indonesia

Water Science & Technology Water Supply, Год журнала: 2024, Номер 24(2), С. 517 - 542

Опубликована: Янв. 24, 2024

Abstract Southeast Asia is vulnerable to climate change with over half of its population already being impacted by drought, flooding, and rise in sea levels recently. This work reviews the current water resource challenges Indonesia, prone rising impacts change. A baseline assessment Indonesia's drinking resources related original sources presented. In response a growing concern chronic that undermine supply nationwide, this study analyses safety supervision. To accomplish this, literature survey (100 studies published during 2000–2023 period) was performed identify regional groundwater sustainability security issues. Among main findings study, only 10% rainfall infiltrates groundwater, while 70% rivers are heavily polluted domestic waste. During period, availability decreased 1,200 m3/year 2020, 35% economically feasible for reuse. The deficit Indonesia estimated be 5.5 hm3/year roughly 67% population's demand satisfied 2021. Although might fulfilled private vendors, supply/demand forecasts 2030 suggest gap could not closed increasing supply.

Язык: Английский

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Bio-based composite from chitosan waste and clay for effective removal of Congo red dye from contaminated water: Experimental studies and theoretical insights

Environmental Research, Год журнала: 2024, Номер 255, С. 119089 - 119089

Опубликована: Май 22, 2024

Язык: Английский

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Harvesting valuable elements from solar panels as alternative construction materials: A new approach of waste valorization and recycling in circular economy for building climate resilience

Sustainable materials and technologies, Год журнала: 2024, Номер 41, С. e01030 - e01030

Опубликована: Июнь 26, 2024

Язык: Английский

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One-step synthesis of iron-rich biochar for efficient hexavalent chromium removal: Adsorption-reduction performance, mechanism and column experiments

Journal of environmental chemical engineering, Год журнала: 2025, Номер 13(2), С. 115701 - 115701

Опубликована: Фев. 3, 2025

Язык: Английский

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Techniques for pollutant removal, nutrient recovery, and energy production from landfill leachates: a review

Environmental Chemistry Letters, Год журнала: 2025, Номер unknown

Опубликована: Янв. 22, 2025

Язык: Английский

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Tackling microplastics pollution in global environment through integration of applied technology, policy instruments, and legislation

Journal of Environmental Management, Год журнала: 2023, Номер 346, С. 118971 - 118971

Опубликована: Сен. 18, 2023

Язык: Английский

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Leveraging food waste for electricity: A low-carbon approach in energy sector for mitigating climate change and achieving net zero emission in Hong Kong (China)

Journal of Environmental Management, Год журнала: 2023, Номер 351, С. 119879 - 119879

Опубликована: Дек. 29, 2023

Язык: Английский

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Progress in green adsorbent technologies from sewage sludge for wastewater remediation and carbon capture: A sustainable approach towards clean environment

Current Opinion in Green and Sustainable Chemistry, Год журнала: 2024, Номер 46, С. 100883 - 100883

Опубликована: Янв. 30, 2024

Researchers worldwide have significantly emphasized utilizing green adsorbents for environmental remediation to ensure a sustainable and secure environment. A promising avenue in this endeavor involves the production of biochar through pyrolysis sewage sludge. This review offers contemporary exploration sludge pyrolysis, emphasizing generation crucial solid fraction, namely biochar. delves into physio-chemical attributes biochar, encompassing elemental composition, specific surface area, pore size volume, functional groups, morphology, heavy metal content. Furthermore, study discusses recent advancements adsorption capabilities sludge-derived specifically removing metals, emerging pollutants, dyes from wastewater, along with carbon capture. proves both pollutant removal effective management large volumes. Despite these advancements, research field warrants further attention, particularly addressing technological features sustainability considerations.

Язык: Английский

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