Waste-Based Materials for Environmental Remediation

Topic Information

Dear Colleagues,

The treatment of solid waste and the remediation of polluted water and soils have become global challenges. Remediation material products from waste are being developed and used for environmental remediation. The research and application of remediation materials require interdisciplinary collaboration, such as materials science, chemistry, environmental science, agriculture, and so on.

This topic seeks to collect contributions on the most recent advances in the preparation and application of waste-based materials for environmental remediation. Topics of interest include issues related to high-value utilization of waste, the development of waste-based materials, the remediation of wastewater and polluted soil, soil improvement, and so on.

We are pleased to invite you to send your contributions to this multidisciplinary topic. Full papers, communications, and reviews are all welcome.

Dr. Huayi Chen
Prof. Dr. Yulong Zhang
Topic Editors

Keywords

Participating Journals

Journal Name	Impact Factor	CiteScore	Launched Year	First Decision (median)	APC
C carbon	2.9	3.4	2015	22.5 Days	CHF 1600	Submit
Environments environments	3.7	5.7	2014	19.2 Days	CHF 1800	Submit
Membranes membranes	3.6	7.9	2011	15.3 Days	CHF 2200	Submit
Polymers polymers	4.9	9.7	2009	14.4 Days	CHF 2700	Submit
Recycling recycling	4.6	8.9	2016	18.9 Days	CHF 1800	Submit
Toxics toxics	4.1	6.4	2013	17.8 Days	CHF 2600	Submit
Water water	3.0	6.0	2009	18.9 Days	CHF 2600	Submit

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Published Papers (2 papers)

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All C Membranes Polymers Water Environments Toxics Recycling

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21 pages, 6456 KB  

Open AccessArticle

Design of Functionalized Biochars for Dual Wastewater Treatment and Fertilizer Production

by Fernanda Pantoja, Sándor Beszédes, Tamás Gyulavári, Erzsébet Illés, Gábor Kozma and Zsuzsanna László

Water 2026, 18(6), 717; https://doi.org/10.3390/w18060717 - 18 Mar 2026

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Abstract

Wastewaters from the food industry and domestic sources contain large amounts of ammonium, a major contributor to eutrophication. Recovering this nutrient for fertilizer use offers both environmental and agricultural benefits. Poplar chop-derived biochars were prepared under different pyrolysis temperatures (300–500 °C) and chemical [...] Read more.

Wastewaters from the food industry and domestic sources contain large amounts of ammonium, a major contributor to eutrophication. Recovering this nutrient for fertilizer use offers both environmental and agricultural benefits. Poplar chop-derived biochars were prepared under different pyrolysis temperatures (300–500 °C) and chemical modifications (acidic and alkaline) to optimize ammonium (NH₄⁺) adsorption and fertilizer reuse. The biochars were characterized by zeta potential, SEM–EDX, FTIR, and specific surface area measurements. Batch adsorption tests revealed that the alkaline-modified biochar produced at 300 °C achieved the highest capacity (4.63 mg NH₄⁺/g biochar) and 62% removal efficiency. Adsorption kinetics followed a pseudo-second-order model (R² = 0.97) but showed only marginal differences among models without independent mechanistic evidence. The Temkin isotherm described the equilibrium data the best (R² > 0.99). Ammonium-enriched biochars enhanced seed germination by up to 54% compared to the control and increased plant biomass up to 12-fold in pot experiments. These results demonstrate that optimized biochars can effectively recover ammonium from wastewater; moreover, the observed plant growth improvement suggests potential slow-release behavior, promoting nutrient recycling and sustainable agriculture. Full article

(This article belongs to the Topic Waste-Based Materials for Environmental Remediation)

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13 pages, 2026 KB  

Open AccessArticle

Biocatalytic Removal of DB2 Azo Dye from Textile Effluent Using Soybean Residue Peroxidases Coupled with Fenton Oxidation

by Erika Viviana Miranda Mandujano, Erik Ramírez Morales, Marcela del Carmen Arellano Cortaza, Omar Sarracino Martínez and Lizeth Rojas Blanco

Water 2026, 18(5), 572; https://doi.org/10.3390/w18050572 - 27 Feb 2026

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Abstract

In this study, the catalytic potential of peroxidase enzymes obtained from soybean industrial residues was investigated for the decolorization of the azo dye Direct Blue 2 (DB2) in textile wastewater. Peroxidase fractions (15 ± 5 U/L) were extracted and partially purified by ion-exchange [...] Read more.

In this study, the catalytic potential of peroxidase enzymes obtained from soybean industrial residues was investigated for the decolorization of the azo dye Direct Blue 2 (DB2) in textile wastewater. Peroxidase fractions (15 ± 5 U/L) were extracted and partially purified by ion-exchange chromatography and applied to a pilot-scale effluent, achieving DB2 degradation rates of 1.48 mg/L·h in the presence of chemical additives. High-performance liquid chromatography confirmed dye removal and detected benzidine (1 mg/L) as a degradation byproduct. Acute toxicity tests using Vibrio fischeri showed minimal variation, with values of 8 TU for untreated wastewater and 7.94 TU after enzymatic treatment. A subsequent Fenton process was implemented as a polishing step, achieving up to 90% decolorization, a 30% reduction in organic matter, and complete elimination of toxicity at an FeSO₄/H₂O₂ ratio of 1:2.4. The results demonstrate a sustainable strategy for pre-treating textile effluents containing azo dyes through the enzyme-based valorization of agro-industrial residues. Full article

(This article belongs to the Topic Waste-Based Materials for Environmental Remediation)

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