Pinus radiata forest residue: A bio-adsorbent of choice for Cr (VI) removal from aqueous solution

Q1 Environmental Science

Environmental Nanotechnology, Monitoring and Management Pub Date : 2025-01-09 DOI:10.1016/j.enmm.2025.101042

Humberto Dax Bonilla Mancilla , Jenny Del Pino Moreyra , Juan José Bullon Rosas , Alfredo Rubén Bernal Marcelo , Candelaria Tejada Tovar , Manoj Kumar Jindal , Devendra Kumar , Mika Sillanpää , Djamel Ghernaout

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Abstract

Hexavalent chromium (Cr(VI)) is a lethally harmful heavy metal that endangers human health and biodiversity worldwide. Conventional Cr(VI) removal procedures are frequently energy-consuming and also emit hazardous byproducts. The use of NaOH-activated Pinus radiata forest residue (PRFR) as a sustainable and adaptable adsorbent for the effective removal of Cr(VI) from aqueous solutions is demonstrated in this work. To validate the adsorption and adsorption mechanism, PRFR was characterized using FTIR (Fourier transform infrared spectroscopy), SEM (Scanning electron microscopy), and XRD (X-ray diffraction) methods. Batch experiment techniques were adopted to optimize the influences of initial concentration, pH, adsorbent dose, temperature, and contact duration for Cr(VI) adsorption, all of which are critical for use on an industrial or commercial scale. After 45 min of contact time, PRFR revealed a high adsorption capacity of 13.947 mg/g with a removal effectiveness of 99.12 % for Cr(VI). The adsorbent was reusable for more than three cycles. PRFR is a nature-friendly adsorbent that can be used for a variety of purposes, including wastewater treatment, industrial effluent remediation, and environmental restoration, because it is inexpensive and easily accessible.

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来源期刊

Environmental Nanotechnology, Monitoring and Management Environmental Science-Water Science and Technology

CiteScore

13.00

自引率

0.00%

发文量

132

审稿时长

48 days

期刊介绍： Environmental Nanotechnology, Monitoring and Management is a journal devoted to the publication of peer reviewed original research on environmental nanotechnologies, monitoring studies and management for water, soil , waste and human health samples. Critical review articles, short communications and scientific policy briefs are also welcome. The journal will include all environmental matrices except air. Nanomaterials were suggested as efficient cost-effective and environmental friendly alternative to existing treatment materials, from the standpoints of both resource conservation and environmental remediation. The journal aims to receive papers in the field of nanotechnology covering; Developments of new nanosorbents for: •Groundwater, drinking water and wastewater treatment •Remediation of contaminated sites •Assessment of novel nanotechnologies including sustainability and life cycle implications Monitoring and Management papers should cover the fields of: •Novel analytical methods applied to environmental and health samples •Fate and transport of pollutants in the environment •Case studies covering environmental monitoring and public health •Water and soil prevention and legislation •Industrial and hazardous waste- legislation, characterisation, management practices, minimization, treatment and disposal •Environmental management and remediation