Recent advances and perspectives of tannin-based adsorbents for wastewater pollutants elimination: A review

Sadegh, Negar; Haddadi, Hedayat; Sadegh, Fatemeh; Asfaram, Arash

doi:10.1016/j.enmm.2022.100763

Cited by 5 publications

(4 citation statements)

References 211 publications

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“…The superior fit of the experimental data to the pseudo-se model suggests that adsorption is dominated by chemisorption or chemical b tween the active sites of the adsorbent and phosphate [68]. The pseudo-secon netic model suggests that chemical adsorption occurs at a slower rate, thus gov surface adsorption processes [38]. This suggests that phosphate may exchang hydroxyl groups on the surface of the metal oxide to form AlPO4, as confirme XPS.…”

Section: Effect Of Contact Timementioning

confidence: 67%

“…The physicochemical properties of biochar, including its surface area, pore size distribution, and functional groups, enable its sorption properties [33]. Furthermore, the sorption characteristics of biochar are significantly influenced by modifications, and several approaches have been reported, including those based on acids, alkalis, oxidizing agents, and metal salts [4,[34][35][36][37][38]. The preparation and modification of adsorbents with metals are simple, efficient methods of removing phosphates from water [4,[39][40][41].…”

Section: Introductionmentioning

confidence: 99%

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Optimization of the Preparation Conditions of Aluminum-Impregnated Food Waste Biochar Using RSM with an MLP and Its Application in Phosphate Removal

Kang,

Kingkhambang,

Lee

et al. 2023

Water

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Phosphorus is an essential macroelement in plant growth and the human body, but excessive water enrichment with phosphorus is a global threat to water quality. To address this problem, the development of an efficient, affordable adsorbent for use in removing large amounts of phosphorus from eutrophic water is necessary. Food-waste-based adsorbents offer a sustainable solution because they utilize waste as a valuable resource. This study explored the use of food waste biochar as a novel adsorbent with additional aluminum impregnation (Al–FWB) to enhance its phosphate adsorption capacity. This study employed response surface methodology (RSM) to optimize the synthetic conditions of the Al–FWB with the highest phosphate adsorption capacity. To enhance the identification of the optimal conditions using RSM, this study employed quadratic equations and a multi-layer perceptron (MLP). The pyrolysis temperature and Al concentration significantly (p < 0.05) affected the adsorption capacity of the AL–FWB. The optimal conditions for the preparation of the AL–FWB were a pyrolysis temperature, duration, and Al concentration of 300 °C, 0.5 h, and 6%, respectively, based on the quadratic equation and MLP models. X-ray photoelectron spectroscopy revealed that phosphate was adsorbed on the surface of the AL–FWB via the formation of AlPO4. The optimized AL–FWB (Opt-AL–FWB) removed 99.6% of the phosphate and displayed a maximum phosphate adsorption capacity of 197.8 mg/g, which is comparable to those reported in previous studies. Additionally, the phosphate adsorption capacity of the Opt-AL–FWB was independent of the pH of the solution, and the presence of 10 mM SO42– decreased its adsorption capacity by 15.5%. The use of the Opt-AL–FWB as an adsorbent provides not only efficient phosphate removal but also green, economical food waste reusability. In summary, this study demonstrates the potential of AL–FWB as an effective, sustainable, and affordable adsorbent for use in phosphate removal from contaminated water.

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Section: Effect Of Contact Timementioning

confidence: 67%

Section: Introductionmentioning

confidence: 99%

Optimization of the Preparation Conditions of Aluminum-Impregnated Food Waste Biochar Using RSM with an MLP and Its Application in Phosphate Removal

Kang,

Kingkhambang,

Lee

et al. 2023

Water

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“…Therefore, it is necessary to develop new cost-effective technologies and materials that can facilitate the abatement of pollution. [42][43][44][45][46] Besides, oil refineries, oil pipelines, and gasoline service shops could contaminate soil and underground water through tank leaks or spills. 47,48 Since fossil fuels are widely used, there is no region exempt from possible contamination.…”

Section: Introductionmentioning

confidence: 99%

“…Oil pollution produces contamination of groundwater and drinking water as well as affect food, fisheries and, other aquatic organisms. Therefore, it is necessary to develop new cost‐effective technologies and materials that can facilitate the abatement of pollution 42–46 . Besides, oil refineries, oil pipelines, and gasoline service shops could contaminate soil and underground water through tank leaks or spills 47,48 .…”

Section: Introductionmentioning

confidence: 99%

The effect of oil raw material composition in the synthesis of bio‐sorbents based on inverse vulcanization on the ability to remediate hydrocarbon‐contaminated water. A novel method for decontaminating water/fuel emulsions

Farioli,

Martinez,

Barbero

et al. 2023

J of Applied Polymer Sci

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Solid crosslinked biopolymers made by inverse vulcanization of soybean (PSB) or sunflower (PSF) oil with sulfur are characterized and tested to decontaminate water from hydrocarbons (HC): gasoline, diesel, two lubricant oils, and water/gasoline emulsion. The physicochemical structure of the biopolymers is studied by FTIR spectroscopy, Differential scanning calorimetry, contact angle measurement, and mechanical testing. Also, the morphological structure is analyzed by scanning electron microscopy. Moreover, the polymer decontamination capability and reusability are tested gravimetrically. Both biopolymers are formed by CS bonds, and their elastic behavior dominates. However, PSF is more hydrophilic, has a larger amount of free sulfur and a less compact structure, and also sorbs ca. 60% more HC than PSB. The results indicate that the unsaturated feedstock has a strong effect on the polymer structure and the capacity to remediate contaminated water or solids. Also, both materials can be reused to remediate water for more than five consecutive cycles. In addition, inverse vulcanization of oils and sulfur is an ecological way of obtaining environmentally‐improved materials with great potential and applications, providing a complete atomic economy and high performance to remediate water from water/HCs dispersed and, more importantly, from water/gasoline emulsions.

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Extraction and Application of Plant-Based Tannins as Sources of Natural Colourants

Adeel,

Yameen,

Asghar

et al. 2023

Sustainable Textiles: Production, Processing, Manufacturing &Amp; Chemistry

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Recent advances and perspectives of tannin-based adsorbents for wastewater pollutants elimination: A review

Cited by 5 publications

References 211 publications

Optimization of the Preparation Conditions of Aluminum-Impregnated Food Waste Biochar Using RSM with an MLP and Its Application in Phosphate Removal

Optimization of the Preparation Conditions of Aluminum-Impregnated Food Waste Biochar Using RSM with an MLP and Its Application in Phosphate Removal

The effect of oil raw material composition in the synthesis of bio‐sorbents based on inverse vulcanization on the ability to remediate hydrocarbon‐contaminated water. A novel method for decontaminating water/fuel emulsions

Extraction and Application of Plant-Based Tannins as Sources of Natural Colourants

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