Solid leather wastes as adsorbents for cationic and anionic dye removal

Pinheiro, Nadini Sc; Perez‐Lopez, Oscar W.; Gutterres, Mariliz

doi:10.1080/09593330.2020.1825531

Cited by 13 publications

(5 citation statements)

References 33 publications

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“…The related literature indicates that tannery waste is used for producing for instance biogas, biofuels, biocarbons and used as bioabsorbents, soil fertilisers, and even as adsorbents or used for treating wastewater containing dyes. 83,84,85,86,87 According to the data of the Statistics Poland, 88 the domestic sector of leather and leather products annually generates approx. 54.5 thousand tonnes of waste, while the estimated amount of solid waste stored so far (on the premises of the plants) equals 32.9 thousand tonnes.…”

Section: Unit Processes For Selected Waste Disposal Management Method...mentioning

confidence: 99%

Utilisation of Production Residue from the Footwear and Clothing Industry

Gendaszewska,

Wieczorek,

Ławińska

et al. 2024

The Importance of Social Innovations in the Knowledge-Based Economy in the Context of Footwear Sector Solutions

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Characteristics of the Footwear and Clothing Industry in terms of Waste ManagementThe leather industry covers a wide range of sectors ranging from the leather markets that provide the tanning industry with raw materials from meat abattoirs to the leather goods manufacturers. Some of those sectors are highly industrialised, others are based mainly on arts and crafts, and still others focus on trade and ancillary services. 1 Leather manufacture is one of the world's oldest handicrafts. Thanks to appropriate processing, we achieve an extremely durable raw material that is used for manufacturing common goods. The leather tanning process consists of a series of mechanical processes and chemical reactions. As a result, unstable raw leather is

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Section: Unit Processes For Selected Waste Disposal Management Method...mentioning

confidence: 99%

Utilisation of Production Residue from the Footwear and Clothing Industry

Gendaszewska,

Wieczorek,

Ławińska

et al. 2024

The Importance of Social Innovations in the Knowledge-Based Economy in the Context of Footwear Sector Solutions

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“…The most common way is to disperse microcapsules in a binding agent and then apply this dispersion to a fabric (non-woven or knitted fabric) by means of various techniques: surfacing, coating, laminating, printing, nozzle spraying. 81,82,83,84,85,86 The disadvantage of using a bonding agent is that the performance of the products may be impaired. To ensure a permanent bond to the fibre structure, the amount of bonding agent used must be sufficiently large.…”

Section: Application Of Microcapsules To Light Industry Materialsmentioning

confidence: 99%

The importance of social innovations in the knowledge-based economy in the context of footwear sector solutions

2024

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The prepared scientific monograph entitled The importance of social innovations in the knowledge-based economy in the context of footwear sector solutions is an attempt to further exemplify social innovations by identifying real links between social need and a specific good, service, method and process, in the context of solutions used in the footwear industry. Poland is one of the leading European footwear manufacturers, ranking 7th in terms of production volume in the EU, with a market share of 2.5%. In addition, strong competition is observed in the industry, which is conducive to the emergence of new innovations. The work contains theoretical and practical references to innovations in the industry, such as examples of modifications of footwear materials that have been used in business practice, and their measurable effect is to improve the comfort of using footwear. The authors refer to the environmental aspects of innovation, indicating the directions of utilization of production residues of the footwear and tanning industry, including composites, granules, and biostimulants for plants. The subject matter taken up in the monograph is an important contribution to the development of further scientific research covering the footwear industry and its importance in developing social innovations in Poland and the world. Based on the obtained research results and statistical data analysis, we attempted to outline the prospects for the development of social innovations in the footwear industry until 2050. The book can be an interesting study for practitioners and theoreticians, particularly for scientists representing disciplines such as economics and finance, management sciences, materials engineering, or entrepreneurs looking for opportunities to finance innovation in various areas.

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“…On the other hand, based on charge, dyes can be classified into three classes: (a) cationic dyes (e.g., rhodamine B, methylene blue, and rhodamine 6G), (b) anionic dyes (e.g., Congo red, methyl orange, and acid fuchsin), and (c) neutral dyes (e.g., Giemsa stain) [ 5 , 6 ]. In general, anionic dyes tend to be acidic, whereas cationic dyes are basic in nature [ 7 ]. Anionic dyes are utilized for the modification of acrylic, polyamide, and polypropylene fibers, whereas cationic dyes are frequently used in the dyeing of acrylic, wool, and silk fibers [ 5 ].…”

Section: Introductionmentioning

confidence: 99%

Adsorptive Elimination of a Cationic Dye and a Hg (II)-Containing Antiseptic from Simulated Wastewater Using a Metal Organic Framework

Roy,

Das,

Paul

et al. 2024

Molecules

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Several types of pollutants have acute adverse effects on living bodies, and the effective removal of these pollutants remains a challenge. Safranin O (a biological dye) and merbromin (a topical mercury-containing antiseptic) are considered organic pollutants, and there are only a few reports on their removal. Synthesized and well-characterized (through PXRD, FTIR, FESEM, and EDS analysis) MOF-5 was used for the first time in the removal of safranin O and merbromin from simulated wastewater and real wastewater. In both cases, MOF-5 effectively removed contaminants. We found that in simulated wastewater, the highest efficiency of removal of safranin O was 53.27% (for 15 mg/L) at pH 10, and for merbromin, it was 41.49% (for 25 mg/L) at pH 6. In the case of real wastewater containing natural ions (Na+, K+, F−, Cl−, SO42−, PO43−, Mg2+, and Ca2+) and other molecules, the removal efficiencies of these two dyes decreased (34.00% and 26.28% for safranin O and merbromin, respectively) because of the presence of other ions and molecules. A plausible mechanism for the removal of these pollutants using MOF-5 was proposed.

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Solid leather wastes as adsorbents for cationic and anionic dye removal

Cited by 13 publications

References 33 publications

Utilisation of Production Residue from the Footwear and Clothing Industry

Utilisation of Production Residue from the Footwear and Clothing Industry

The importance of social innovations in the knowledge-based economy in the context of footwear sector solutions

Adsorptive Elimination of a Cationic Dye and a Hg (II)-Containing Antiseptic from Simulated Wastewater Using a Metal Organic Framework

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