Current Developments in Chitosan‐Based Hydrogels for Water and Wastewater Treatment: A Comprehensive Review

ChemistrySelect, Год журнала: 2025, Номер 10(6)

Опубликована: Фев. 1, 2025

Abstract The global shortage of fresh water is a critical issue, especially in regions with limited rainfall. Developing reliable and wastewater treatment technologies urgent. Among the available methods, adsorption stands out as highly effective, straightforward, cost‐efficient approach. It avoids use additional chemicals reduces risk contaminating source undesirable by‐products. Chitosan (CS)‐based hydrogels have gained attention for their excellent capacities pollutants water. These materials are also known bioavailability, biocompatibility, biodegradability, cost‐effectiveness, environmental friendliness, making them promising candidates treatment. This comprehensive review explores recent advancements CS‐based various applications, including pollutant removal, oil‐water separation, seawater desalination, atmospheric condensation. highlights benefits this material treatment, providing broader understanding potential research community. focuses on synthesis modification techniques these hydrogels, such cross‐linking, grafting, ion imprinting, which significantly enhance performance mechanical stability. Additionally, challenges faced by practical applications discussed, along solutions. paper concludes forecasting future directions field, offering valuable insights researchers. Overall, provides overview current state art into effective utilization emphasizing to address pollution challenges.

Язык: Английский

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Efficient removal of toxic dyes malachite green and fuchsin acid from aqueous solutions using Pullulan/CMC hydrogel

Polymer, Год журнала: 2024, Номер 307, С. 127203 - 127203

Опубликована: Май 27, 2024

Язык: Английский

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Achieving a Biocircular Economy in the Aquaculture Sector Through Waste Valorization

Toxics, Год журнала: 2025, Номер 13(2), С. 131 - 131

Опубликована: Фев. 11, 2025

Aquaculture wastewater treatment not only assists in alleviating the scarcity of clean water for daily usage and environmental pollution, but also generates valuable byproducts. This paper aims to review generation from aquaculture sector, its characteristics, available technologies, while comprehensively discussing adoption a biocircular economy approach through waste valorization. With rich nutrients, such as nitrogenous compounds, presence phosphorus effluent, these aspects could be explored valorized into biofertilizers, broadening their application aquaponics hydroponics, well algae daphnid cultivation. Biofertilizer can used agriculture because it contains essential elements needed by plants. Thus, methods converting nutrients biofertilizers terms sludge recovery accomplished via anaerobic aerobic digestion, drying, composting, vermicomposting. Moving forward, effluent is addressed under re-engaging effluents production cycle. The enhancement biomass uses aquaponics, cultivation, co-cultivation, presents opportunities nutrient ensuring that non-toxic safely discharged external bodies. has potential revolutionize aquaculture, shifting economic model management linear system circular, more sustainable one.

Язык: Английский

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Advancements in freshwater aquaculture wastewater management: A comprehensive review

Aquaculture, Год журнала: 2024, Номер 594, С. 741346 - 741346

Опубликована: Июль 15, 2024

Язык: Английский

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Preparation and application of composite magnetic flocculants for wastewater treatment: A review

Journal of Environmental Management, Год журнала: 2025, Номер 377, С. 124626 - 124626

Опубликована: Фев. 20, 2025

Язык: Английский

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Convert Iron Tailings Waste into a Novel Mg-Fe-Al Hybrid Magnetic Coagulant for Enhanced Pretreatment of Swine Wastewater

Journal of environmental chemical engineering, Год журнала: 2025, Номер unknown, С. 115546 - 115546

Опубликована: Янв. 1, 2025

Язык: Английский

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Adaptive optimization of natural coagulants using hybrid machine learning approach for sustainable water treatment

Scientific Reports, Год журнала: 2025, Номер 15(1)

Опубликована: Май 8, 2025

The efficiency optimization methods for natural coagulants are often restricted due to non-scientific trial-and-error approaches. They inaccurate in predicting the complex interactions of jet mixing parameters, coagulant dosage, and environmental conditions. To overcome these obstacles, this research paper proposes advanced hybrid models machine learning enhance flocculation efficiency. We use CatBoost model with NTK learn intricate nonlinear among velocity, time, dose, pH, turbidity. is effective dealing categorical data like diverse coagulants. Meanwhile, boosts model's generalization capability, especially when sample size becomes small or experimental datasets applied. Lastly, SOMs MARS used identify pattern recognitions tracing crucial interaction parameters. Reinforcement techniques-that include DDPG SAC dynamic dosage-optimize real time. Utilizing NAS Hyperband automate tuning, timestamp was reduced by 40%. proposed heavily improve process 20-25% allow a good predictive accuracy 95-97%. Paramount, however, that has interpretability properties assured SHAP counterfactual explanations, which would give actionable insights into most influencing factors on flocculation. This work represents substantial advancement discipline since it introduces robust, interpretable, real-time offer practical tool through improvement water treatment processes be made both sustainable efficient.

Язык: Английский

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Efficient removal of Eosin B and Bismarck Brown dyes through microwave-assisted synthesis of pectin- and pullulan-based hydrogel

Polymer Bulletin, Год журнала: 2025, Номер unknown

Опубликована: Май 27, 2025

Язык: Английский

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FERRIHYDRITE-CHITOSAN NANOCOMPOSITE AS A RECYCLABLE FLOCCULANT FOR PALM OIL MILL EFFLUENT

Jurnal Teknologi, Год журнала: 2024, Номер 86(2), С. 169 - 182

Опубликована: Янв. 16, 2024

In the present study, ferrihydrite-chitosan nanocomposite (FCN) was successfully produced by co-precipitation method and used for first time as a recyclable flocculant pre-treatment of palm oil mill effluent (POME). The physicochemical properties FCN were studied using Raman spectrometer, Scanning Electron Microscope (SEM) Thermogravimetric Analyser (TGA). feasibility to remove total suspended solids (TSS), turbidity, chemical oxygen demand (COD), and, grease (O&G) from POME investigated jar test method. optimum conditions contaminant removal determined varying experimental parameters such dosage, solution pH settling time. results obtained showed that FCN, at dosage 1.5 g/L, contact 60 min 5.0 gave highest reduction TSS, COD O&G levels 72.38%, 77.32%, 71.60% 53.40%, respectively. Besides that, exhibited better flocculation performance compared alum chitosan. After three cycles flocculation/deflocculation process, retained satisfying efficiency flocculants recovery in range 80-83% 43.2-78.6%, Combination charge neutralisation polymer bridging main key mechanism interaction between contaminants. synergy effect iron oxide/oxyhydroxide nanoparticle chitosan has increased nanocomposite. Overall, can be an alternative treatment.

Язык: Английский

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Cleaner and sustainable circular economy approaches for bio-based product recovery from industrial effluents in a biorefinery

Elsevier eBooks, Год журнала: 2024, Номер unknown, С. 27 - 52

Опубликована: Ноя. 29, 2024

Язык: Английский

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