Abstract
Heavy metal contamination necessitates cost-effective and eco-friendly treatment methods. This study explores the potential of waste seafood shells as a sustainable biosorbent for copper (Cu²⁺) removal. Batch experiments examined the effects of particle size, contact time, and adsorbent dosage on biosorption. Results confirmed that smaller particle sizes significantly enhanced removal efficiency (>90%) due to increased surface area. While the maximum copper removal was achieved at 40 g L⁻¹, 20 g L⁻¹ was identified as the optimum dosage considering both removal efficiency (>90%) and economic feasibility. Adsorption data fitted the Freundlich isotherm and pseudo-second-order kinetic models, indicating multilayer chemisorption on heterogeneous surfaces. Furthermore, a Nonlinear Autoregressive with Exogenous Inputs (NARX) artificial neural network (ANN) was developed. This model accurately predicted copper removal efficiency with a low mean squared error. Findings demonstrate that seafood shells are promising biosorbents, and the integration of ANN modeling offers a powerful tool for optimizing sustainable wastewater treatment systems.
Ethical Statement
The authors declare that this study does not require ethics committee approval as it does not involve experiments on human or animal subjects.
Supporting Institution
Ondokuz Mayıs University
Project Number
-
Thanks
The authors would like to thank Ondokuz Mayıs University, Department of Environmental Engineering for providing laboratory facilities.
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Details
| Primary Language | English |
|---|---|
| Subjects | Environmental Engineering (Other) |
| Journal Section | Research Article |
| Authors | |
| Project Number | - |
| Submission Date | November 20, 2025 |
| Acceptance Date | February 3, 2026 |
| Publication Date | February 6, 2026 |
| DOI | https://doi.org/10.5281/zenodo.18469002 |
| IZ | https://izlik.org/JA58EL79ZF |
| Published in Issue | Year 2026 Issue: 58 |
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Tyler G (1975). Effect of heavy metal pollution on decomposition and mineralization in forest soils. In: Proceedings of the International Conference on Heavy Metals in the Environment, (Eds.: B. Nath and J.P. Robinson). Vol. 2 WHO, Toronto, pp. 217-226.
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Mwacharo JM (2000). Characterization of the genetic diversity of Kenyan indigenous sheep breeds using blood biochemical polymorphism. M.Sc. Thesis. University of Nairobi, Nairobi, Kenya, 119p
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Dokuz Eylül Üniversitesi, Müh.-Mim. Fakültesi, Çevre Mühendisliği Bölümü'nden mezun olmuştur. Yüksek lisans ve doktorasını ABD'nde tamamlamıştır. Uzmanlık alanı, hava kirliliği ve kontrolü üzerinedir. Özellike kalıcı organik kirleticiler (KOK'ler) üzerine araştırmalarını devam ettirmektedir. Halen Bursa Uludağ Üniversitesi, Mühendislik Fakültesi, Çevre Mühendisliği Bölümü'nde öğretim üyesidir.
Danka Bukvicki gained her master and PhD in Biology at the Faculty of Biology University of Belgrade (FBUB). She is a Senior Research Associate at the Department of Morphology and Systematics of Plants, FBUB. Postdoctoral studies in phytochemistry of liverworts and medicinal plants she accomplished at the Tokushima Bunri University (TBU), Japan, the University of Bologna(UNIBO), Department of Agricultural and Food Sciences (DISTAL), and Chemodiversity Research Group, University of Vienna, Austria. Her research interests are applied botany, medicinal and aromatic plants, bioactivity of natural compounds, food microbiology, food technology and phytochemistry. Dr Bukvicki published more than 40 scientific publications in peer-reviewed international journals. She is a member of the editorial board of 2 international scientific journals. She is engaged as a coordinator in international research project (UNDP). Danka has supervised a few national and international master and bachelor students. She is a member of the Phytochemical Society of Asia (PCA) since 2015 and a member of the Serbian Biological Society, since 2011.
She is a specialist in the field of food drying, the application of non-thermal food processing methods, food storage and safety, and packaging. Her scientific and research interests focus mainly on engineering issues in food technology, especially the physical properties of raw materials and mainly plant products.
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