Functionalized biochar from vegetable waste for phosphorus removal from aqueous solution and its potential use as a slow-release fertilizer

Agricultural runoff of phosphorus leads to the loss of this critical nutrient into the waterbodies and causes environmental problems like eutrophication. To tackle the growing concern, functionalized biochar as an adsorbent provides a sustainable method to capture the phosphorus from wastewater. Add...

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Main Authors: Rajesh Chanda, Toslim Jahid, Anik Karmokar, Bejoy Hossain, Md. Moktadir, Md. Saiful Islam, Nirupam Aich, Biplob Kumar Biswas
Format: Article
Language:English
Published: Elsevier 2025-03-01
Series:Cleaner Materials
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Online Access:http://www.sciencedirect.com/science/article/pii/S2772397624000716
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author Rajesh Chanda
Toslim Jahid
Anik Karmokar
Bejoy Hossain
Md. Moktadir
Md. Saiful Islam
Nirupam Aich
Biplob Kumar Biswas
author_facet Rajesh Chanda
Toslim Jahid
Anik Karmokar
Bejoy Hossain
Md. Moktadir
Md. Saiful Islam
Nirupam Aich
Biplob Kumar Biswas
author_sort Rajesh Chanda
collection DOAJ
description Agricultural runoff of phosphorus leads to the loss of this critical nutrient into the waterbodies and causes environmental problems like eutrophication. To tackle the growing concern, functionalized biochar as an adsorbent provides a sustainable method to capture the phosphorus from wastewater. Additionally, the P-laden biochar as a slow-release fertilizer improves plant nutrient uptake and crop yield. In this work, metal chloride-doped biochar derived from non-edible vegetable waste was prepared and applied as an adsorbent. Zinc chloride-doped biochar (ZBC) showed a better phosphorus adsorption capacity of 47.83 mg/g among the prepared biochar. The desorption study suggested that around 42 % of total adsorbed P was released within 336 h. The growth of mung plants over 70 days was monitored, along with mung bean yield, to assess the effectiveness of P-laden ZBC as a slow-release phosphorus fertilizer. The presented approach of non-edible waste valorization into slow-release fertilizer could contribute to tackling nutrient depletion and achieving a circular economy.
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spelling doaj-art-d8a46c23d12d48c6ba226e1d5ab4f4052025-08-20T02:57:33ZengElsevierCleaner Materials2772-39762025-03-011510028710.1016/j.clema.2024.100287Functionalized biochar from vegetable waste for phosphorus removal from aqueous solution and its potential use as a slow-release fertilizerRajesh Chanda0Toslim Jahid1Anik Karmokar2Bejoy Hossain3Md. Moktadir4Md. Saiful Islam5Nirupam Aich6Biplob Kumar Biswas7Department of Chemical Engineering, Jashore University of Science and Technology, Jashore 7408, Bangladesh; Corresponding authors.Department of Chemical Engineering, Jashore University of Science and Technology, Jashore 7408, BangladeshDepartment of Chemical Engineering, Jashore University of Science and Technology, Jashore 7408, BangladeshDepartment of Chemical Engineering, Jashore University of Science and Technology, Jashore 7408, BangladeshDepartment of Chemical Engineering, Jashore University of Science and Technology, Jashore 7408, BangladeshDepartment of Nanomaterials and Ceramics Engineering, Bangladesh University of Engineering Technology, Dhaka 1000, BangladeshDepartment of Civil and Environmental Engineering, University of Nebraska-Lincoln, Nebraska Hall W181, 900 N 16th St, Lincoln, NE, USADepartment of Chemical Engineering, Jashore University of Science and Technology, Jashore 7408, Bangladesh; Corresponding authors.Agricultural runoff of phosphorus leads to the loss of this critical nutrient into the waterbodies and causes environmental problems like eutrophication. To tackle the growing concern, functionalized biochar as an adsorbent provides a sustainable method to capture the phosphorus from wastewater. Additionally, the P-laden biochar as a slow-release fertilizer improves plant nutrient uptake and crop yield. In this work, metal chloride-doped biochar derived from non-edible vegetable waste was prepared and applied as an adsorbent. Zinc chloride-doped biochar (ZBC) showed a better phosphorus adsorption capacity of 47.83 mg/g among the prepared biochar. The desorption study suggested that around 42 % of total adsorbed P was released within 336 h. The growth of mung plants over 70 days was monitored, along with mung bean yield, to assess the effectiveness of P-laden ZBC as a slow-release phosphorus fertilizer. The presented approach of non-edible waste valorization into slow-release fertilizer could contribute to tackling nutrient depletion and achieving a circular economy.http://www.sciencedirect.com/science/article/pii/S2772397624000716Metal chloride-doped BiocharAdsorptionKineticsSlow-release fertilizerCircular economy
spellingShingle Rajesh Chanda
Toslim Jahid
Anik Karmokar
Bejoy Hossain
Md. Moktadir
Md. Saiful Islam
Nirupam Aich
Biplob Kumar Biswas
Functionalized biochar from vegetable waste for phosphorus removal from aqueous solution and its potential use as a slow-release fertilizer
Cleaner Materials
Metal chloride-doped Biochar
Adsorption
Kinetics
Slow-release fertilizer
Circular economy
title Functionalized biochar from vegetable waste for phosphorus removal from aqueous solution and its potential use as a slow-release fertilizer
title_full Functionalized biochar from vegetable waste for phosphorus removal from aqueous solution and its potential use as a slow-release fertilizer
title_fullStr Functionalized biochar from vegetable waste for phosphorus removal from aqueous solution and its potential use as a slow-release fertilizer
title_full_unstemmed Functionalized biochar from vegetable waste for phosphorus removal from aqueous solution and its potential use as a slow-release fertilizer
title_short Functionalized biochar from vegetable waste for phosphorus removal from aqueous solution and its potential use as a slow-release fertilizer
title_sort functionalized biochar from vegetable waste for phosphorus removal from aqueous solution and its potential use as a slow release fertilizer
topic Metal chloride-doped Biochar
Adsorption
Kinetics
Slow-release fertilizer
Circular economy
url http://www.sciencedirect.com/science/article/pii/S2772397624000716
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