Comparative analysis of nanomaterial adsorbents for nutrient recovery: unveiling the potential of silica-assisted nano hemicellulose in wastewater management

IF 3.1 4区工程技术 Q3 CHEMISTRY, PHYSICAL

Adsorption Pub Date : 2025-06-19 DOI:10.1007/s10450-025-00637-0

Renju, Rajesh Singh

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引用次数: 0

Abstract

Nutrient recovery from sewage wastewater through nanomaterial adsorbents is a promising method for reducing environmental pollution and recycling essential nutrients. In this study, various adsorbents, specifically Chitosan (CHI), Ceramic-based Zeolite nanomaterial (N-Zs), and Silica-assisted Nano hemicellulose (Si-NHC), were prepared to analyze their capacity to adsorb NH₄⁺ and PO₄³⁻ from synthetic and real wastewater sources. The study revealed a notable adsorption capacity of 84.734 ± 10.165 mg/g and 0.192 ± 0.024 mg/g for NH₄⁺ and PO₄³⁻, respectively, by Si-NHC. The hydrothermally synthesized N-Zs show poor efficiency compared to other adsorbents. Optimal conditions for NH₄⁺ adsorption were identified at a pH of 5.5, utilizing 0.1 g of Si-NHC per 50 ml of solution, with a contact time of 2.5 h. An economic analysis of NH₄⁺ recovery from treated wastewater indicated advantages due to its lower cost and higher adsorption capacity. The higher adsorption capacity and degradable nature position Si-NHC as a viable candidate for use as a fertilizer. The detailed adsorption and desorption cycle durability and efficiency of the Si-NHC were also evaluated.

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纳米材料吸附剂对养分回收的比较分析：揭示二氧化硅辅助纳米半纤维素在废水管理中的潜力

利用纳米吸附剂回收污水中的营养物质是一种很有前途的减少环境污染和循环利用必需营养素的方法。在本研究中，制备了不同的吸附剂，特别是壳聚糖（CHI），陶瓷基沸石纳米材料（N-Zs）和二氧化硅辅助纳米半纤维素（Si-NHC），分析了它们对合成和实际废水中NH4+和PO43−的吸附能力。研究表明，Si-NHC对NH4+和PO43−的吸附量分别为84.734±10.165 mg/g和0.192±0.024 mg/g。与其他吸附剂相比，水热合成的N-Zs效率较低。确定了NH4+吸附的最佳条件为pH为5.5，每50 ml溶液中使用0.1 g Si-NHC，接触时间为2.5 h。从处理过的废水中回收NH4+的经济分析表明，其成本较低，吸附容量较大。硅- nhc具有较高的吸附能力和可降解性，是一种可行的肥料候选材料。详细评价了硅- nhc的吸附和解吸循环耐久性和效率。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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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.