Agro-Waste-Derived Hybrid Biochar Exhibits High-Efficiency Removal of Endocrine-Disrupting Compounds

IF 3 4区环境科学与生态学 Q2 ENVIRONMENTAL SCIENCES Water, Air, & Soil Pollution Pub Date : 2025-04-11 DOI:10.1007/s11270-025-07960-w

Hildegard R. Kasambala, Mwemezi J. Rwiza, Nelson Mpumi, Mwema Felix Mwema, Karoli N. Njau

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Abstract

Poor waste management of the products and products used in water sources becomes a problem for living organisms’ health. Using biosorbent from agro-waste materials becomes the solution for waste management and wastewater treatment. This study investigated the removal of progesterone from aqueous solutions using a biochar adsorbent derived from mixed banana and mango peels. The biosorbent shows high progesterone removal of 97.8 ± 0.02% at 700℃ preparation temperature at an optimal biosorbent concentration of 0.50 g and pH of 8. Kinetic studies showed that the adsorption followed a pseudo-second-order model. Isotherm analysis revealed that the adsorption data best fitted the Freundlich model (R² = 0.96), with a maximum adsorption capacity (q_max) of 307 mg g⁻¹, indicating multilayer adsorption with a heterogeneous surface. The Brunauer–Emmett–Teller (BET) surface area was 652 m²g⁻¹ with abundant functional groups verified by Fourier Transform Infrared Spectroscopy (FTIR). The Scanning Electron Microscopy image (SEM) indicated that the biochar is porous, contributing to its effectiveness as an adsorbent. Thermodynamics results indicate that the spontaneous nature of adsorption reveals the process. The findings proved the potential of using agricultural mixed waste-derived biochar containing various chemical and physical characteristics as an effective and sustainable adsorbent to remove endocrine disruptors. This technique addresses environmental concerns about water hormone pollution and promotes sustainable waste management practices, but the gradual decrease in adsorption efficiency highlights the importance of optimizing the biochar's chemical composition and structural reliability to maximize its performance.

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农业废弃物衍生的混合生物炭显示高效去除内分泌干扰化合物

对水源中使用的产品和产品的废物管理不善已成为生物健康的一个问题。利用农业废弃物中的生物吸附剂成为废弃物管理和废水处理的解决方案。本研究研究了用混合香蕉和芒果皮制成的生物炭吸附剂从水溶液中去除黄体酮。在制备温度700℃、最佳生物吸附剂浓度0.50 g、pH = 8条件下，该生物吸附剂对黄体酮的去除率为97.8±0.02%。动力学研究表明，吸附符合准二阶模型。等温线分析表明，吸附数据最符合Freundlich模型（R2 = 0.96），最大吸附量（qmax）为307 mg g−1，表明吸附具有非均质表面的多层吸附。经傅里叶红外光谱（FTIR）验证，该材料的比表面积为652 m2g−1，官能团丰富。扫描电镜图像（SEM）表明，生物炭是多孔的，有助于其作为吸附剂的有效性。热力学结果表明，吸附的自发性质揭示了这一过程。研究结果证明，利用含有各种化学和物理特性的农业混合废物衍生生物炭作为一种有效和可持续的吸附剂去除内分泌干扰物的潜力。该技术解决了水激素污染的环境问题，并促进了可持续的废物管理实践，但吸附效率的逐渐下降凸显了优化生物炭的化学成分和结构可靠性以最大化其性能的重要性。

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来源期刊

Water, Air, & Soil Pollution 环境科学-环境科学

CiteScore

4.50

自引率

6.90%

发文量

448

审稿时长

2.6 months

期刊介绍： Water, Air, & Soil Pollution is an international, interdisciplinary journal on all aspects of pollution and solutions to pollution in the biosphere. This includes chemical, physical and biological processes affecting flora, fauna, water, air and soil in relation to environmental pollution. Because of its scope, the subject areas are diverse and include all aspects of pollution sources, transport, deposition, accumulation, acid precipitation, atmospheric pollution, metals, aquatic pollution including marine pollution and ground water, waste water, pesticides, soil pollution, sewage, sediment pollution, forestry pollution, effects of pollutants on humans, vegetation, fish, aquatic species, micro-organisms, and animals, environmental and molecular toxicology applied to pollution research, biosensors, global and climate change, ecological implications of pollution and pollution models. Water, Air, & Soil Pollution also publishes manuscripts on novel methods used in the study of environmental pollutants, environmental toxicology, environmental biology, novel environmental engineering related to pollution, biodiversity as influenced by pollution, novel environmental biotechnology as applied to pollution (e.g. bioremediation), environmental modelling and biorestoration of polluted environments. Articles should not be submitted that are of local interest only and do not advance international knowledge in environmental pollution and solutions to pollution. Articles that simply replicate known knowledge or techniques while researching a local pollution problem will normally be rejected without review. Submitted articles must have up-to-date references, employ the correct experimental replication and statistical analysis, where needed and contain a significant contribution to new knowledge. The publishing and editorial team sincerely appreciate your cooperation. Water, Air, & Soil Pollution publishes research papers; review articles; mini-reviews; and book reviews.