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Techno-economic feasibility and life cycle assessment analysis for a developed novel biosorbent-based arsenic bio-filter system

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Abstract

Significant aquifers around the world is contaminated by arsenic (As), that is regarded as a serious inorganic pollution. In this study, a biosorbent-based bio-filter column has been developed using two different plant biomasses (Colocasia esculenta stems and Artocarpus heterophyllus seeds) to remove total As from the aqueous system. Due to its natural origin, affordability, adaptability, removal effectiveness, and possibility for integration with existing systems, the biosorbent-based bio-filter column presents an alluring and promising method. It offers a practical and eco-friendly way to lessen the damaging impacts of heavy metal contamination on ecosystems and public health. In this system, As (III) is oxidized to As (V) using chlorine as an oxidant, after this post-oxidized As-contaminated water is passed through the bio-filter column to receive As-free water (or below World Health Organization permissible limit for As in drinking water). Optimization of inlet flow rate, interference of co-existing anions and cations, and life cycle of the column were studied. The maximum removal percent of As was identified to be 500 µg L−1 of initial concentration at a flow rate of 1.5 L h−1. Furthermore, the specifications of the biosorbent material was studied using elemental analysis and Zeta potential. The particle size distribution, morphological structures, and chemical composition before and after binding with As were studied using dynamic light scattering (DLS), scanning electron microscope-energy dispersive X-Ray spectroscopy (SEM–EDX), and fourier's transform infrared spectroscopy (FTIR) analysis, respectively. SuperPro 10 software was used to analyze the techno-economic viability of the complete unit and determine its ideal demand and potential. Life cycle assessment was studied to interpret the environmental impacts associated alongside the process system. Therefore, this bio-filtration system could have a potential application in rural, urban, and industrial sectors.

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All data generated or analyzed during this study are included in this research article (and also in its supplementary informatory files).

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Acknowledgements

The authors would like to thank the Department of Science and Technology, Government of India, for providing financial support to the research work (DST/TM/WTI/2K16/264). We would futher like to express our appreciation to the National Institute of Technology Rourkela for providing the infrastructure and instrumental support to proceed with the work.

Funding

The Department of Science and Technology, Government of India (DST/TM/WTI/2K16/264) supported this research work financially.

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Contributions

SM: Conceptualization, methodology, performed the experiments, analyzed and interpreted the data, software, figures, major contributor in writing the manuscript, reviewing and editing. PD: Performed the experiments, figures, and contributor in wring a part of the original manuscript, reviewing and editing. MG: Performed the experiments, figures, and contributor in wring a part of the original manuscript. SR: Software. RPA: Software. Dr. AS: Supervision.

Corresponding author

Correspondence to Angana Sarkar.

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Maity, S., Dokania, P., Goenka, M. et al. Techno-economic feasibility and life cycle assessment analysis for a developed novel biosorbent-based arsenic bio-filter system. Environ Geochem Health 46, 79 (2024). https://doi.org/10.1007/s10653-023-01839-7

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  • DOI: https://doi.org/10.1007/s10653-023-01839-7

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