Prospective Life Cycle Assessment Prospective (LCA) of Activated Carbon Production, Derived from Banana Peel Waste for Methylene Blue Removal

IF 3 4区工程技术 Q3 CHEMISTRY, PHYSICAL Adsorption Pub Date : 2024-05-18 DOI:10.1007/s10450-024-00485-4

Paulo Henrique F. Pereira, Lana S. Maia, Andressa I. C. da Silva, Bianca A. R. Silva, Fernanda R. Pinhati, Sueli Aparecida de Oliveira, Derval S. Rosa, Daniella R. Mulinari

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Abstract

Activated carbon (AC) has recently gained increasing attention for removing various contaminants from water. AC obtained by agroindustrial waste is considered one of the essential adsorbent materials, which plays a vital role in processes of adsorption in water purification and wastewater treatment. Given the extensive use of this material, it is essential to understand its entire production chain and environmental impact. In this work, banana peel waste (BPF) was submitted at NaOH activation followed by pyrolysis at 600 °C to produce activated biochar (BFAC), aiming to remove methylene blue (MB) from wastewater. BFAC was characterized by TGA, XRD, SEM, BET, and FTIR techniques. The influence of dye concentration (10, 25, 50, 100, 250, and 500 mg L^− 1) and zero point charge (ZPC) were investigated. Besides, a Life Cycle Assessment (LCA) was carried out to assess the environmental impacts of the developed process. BFAC presented a well-developed pore structure with a predominance of mesopores and macropores, which directly influenced the MB removal capacity. The highest efficiency for dye removal was 62% after 10 min to an initial concentration of 50 mg.L^-1. The adsorption isotherms were well defined by Langmuir, Freundlich, and Temkin isotherm models. The Langmuir model represented the best fit of experimental data for BFAC with a maximum adsorption capacity of 49.5 mg g^− 1. Regarding LCA, a prospective approach at the early stage of development was conducted to orient the transition from laboratory to industrial scale, aiming at providing a competitive CO₂-based technological route. The scenarios proposed suggest that this route is promising either from the life cycle assessment or the circular economy perspective. Thus, BFAC can be considered an adsorbent with great practical application for post-treatment wastewater effluents to remove contaminants.

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利用香蕉皮废料生产活性炭去除亚甲基蓝的前瞻性生命周期评估（LCA）

最近，活性炭（AC）在去除水中各种污染物方面受到越来越多的关注。从农用工业废料中提取的活性炭被认为是重要的吸附材料之一，在水净化和废水处理的吸附过程中发挥着重要作用。鉴于这种材料的广泛使用，了解其整个生产链和对环境的影响至关重要。在这项工作中，香蕉皮废料（BPF）经 NaOH 活化后在 600 °C 高温分解，生成活性生物炭（BFAC），旨在去除废水中的亚甲基蓝（MB）。采用 TGA、XRD、SEM、BET 和 FTIR 技术对 BFAC 进行了表征。研究了染料浓度（10、25、50、100、250 和 500 mg L-1）和零点电荷（ZPC）的影响。此外，还进行了生命周期评估（LCA），以评估所开发工艺对环境的影响。BFAC 具有发达的孔隙结构，以中孔和大孔为主，这直接影响了甲基溴的去除能力。初始浓度为 50 mg.L-1 时，10 分钟后染料去除效率最高，达到 62%。吸附等温线由 Langmuir、Freundlich 和 Temkin 等温线模型很好地定义。Langmuir 模型是 BFAC 实验数据的最佳拟合模型，其最大吸附容量为 49.5 mg g-1。在生命周期评估方面，在开发的早期阶段采用了一种前瞻性方法，以确定从实验室规模向工业规模过渡的方向，旨在提供一种具有竞争力的基于二氧化碳的技术路线。提出的方案表明，无论从生命周期评估还是从循环经济的角度来看，这条路线都很有前景。因此，BFAC 可被视为一种吸附剂，在后处理废水以去除污染物方面具有重要的实际应用价值。

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来源期刊

Adsorption 工程技术-工程：化工

CiteScore

8.10

自引率

3.00%

发文量

审稿时长

2.4 months

期刊介绍： The journal Adsorption provides authoritative information on adsorption and allied fields to scientists, engineers, and technologists throughout the world. The information takes the form of peer-reviewed articles, R&D notes, topical review papers, tutorial papers, book reviews, meeting announcements, and news. Coverage includes fundamental and practical aspects of adsorption: mathematics, thermodynamics, chemistry, and physics, as well as processes, applications, models engineering, and equipment design. Among the topics are Adsorbents: new materials, new synthesis techniques, characterization of structure and properties, and applications; Equilibria: novel theories or semi-empirical models, experimental data, and new measurement methods; Kinetics: new models, experimental data, and measurement methods. Processes: chemical, biochemical, environmental, and other applications, purification or bulk separation, fixed bed or moving bed systems, simulations, experiments, and design procedures.