Assessment of fish scales waste as a low cost and eco-friendly adsorbent for removal of an azo dye: Equilibrium, kinetic and thermodynamic studies

Ooi, Jecksin; Lee, Lai Yee; Hiew, Billie Yan Zhang; Thangalazhy‐Gopakumar, Suchithra; Lim, Siew Shee; Gan, Suyin

doi:10.1016/j.biortech.2017.08.153

Cited by 102 publications

(32 citation statements)

References 32 publications

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“…FS size and the length of contact time had significant effect on the dye removal performance. Performance increased drastically with the increase of FS size (75, 149, 250, 425 µ and larger, as well as pristine whole scales) ( Figure 6A), which contradicted the findings for the adsorption process [7,10,16,21]. This disparity in the finding might be explained from the FT-IR spectra, which show the organic content of FS responsible for absorption is reduced while pulverized; however, it outlines future research to reveal the underlying reason behind depletion of organic content.…”

Section: Effect Of the Initial Dye Concentration And The Amount Of Fsmentioning

confidence: 55%

“…Zeiss Lumera light microscope (Carl-Zeiss, Oberkochen, Germany) provided 6.4× image of whole scale of both sides. Energy dispersive X-ray spectroscopy (EDS) (EDAZ AMETEK material analysis division, Mahwah, NJ, USA), coupled with the SEM system was used in order to recognize the elements present in the FS [21]. Before SEM-EDS analysis, samples (colored and uncolored) were coated with a thin gold layer using EMS550X sputter coater (Electron Microscopy Sciences, Hatfield, PA, USA).…”

Section: Characterizationmentioning

confidence: 99%

“…Thermo-gravimetric analysis (TGA) of pristine FS accounted initial weight loss 14.2% between 25 • C and 150 • C due to evaporation of adsorbed water (to 110 • C) and of the hydrogen-bonded (absorbed) water (to 150 • C). By 246 • C, more than 3% weight was lost from the inorganic lattice structure and decomposition of light volatile compounds of FS [21]. The maximum loss of weight (almost 0.2%/ • C) was noted at 332.5 • C, and 285 • C was set as the thermal degradation temperature.…”

Section: Sem and Edsmentioning

confidence: 99%

“…Marrakchi et al [8] found a similar trend while examining those effects on reactive orange 16 and methylene blue dye removal by carbonized FS. The concentration difference between dyes and scale amounts determines the mass transportation between sorbents and sorbates and directs the dye molecules to move based on the attainment of equilibrium, dye aggregation and saturation, which, however, might be subjected to other process variables, such as time, temperature, salinity, pH, and surfactant, if used [8,13,14,16,21]. Table 5 provides a close scenario of dye removal capacities by different FS along with other sorbents.…”

Section: Effect Of the Initial Dye Concentration And The Amount Of Fsmentioning

confidence: 99%

“…Consequently, a high denominator value (X o ) in Equation (2), provided a low q e value, dye absorption by sorbent (FS). On the contrary, most of the studies cited above processed FS through heat and/or chemical treatments that resulted in moisture and volatile evaporations; for instance, Ooi et al [21] noticed that application of high heat, such as 800 • C, ended up with 8.6% ash content, and Marrakchi et al [8] yielded 12.18 g carbonized FS out of 100 g by heating at 600 • C. Ultimately, these processes came up with high removal capacities, since the density gets lower (the volume remained almost the same but the weight decreased significantly). The variations in dye removal performances among dyes might be due to the bulky chemical structures, chemical functionalities and size of dyes.…”

Section: Effect Of the Initial Dye Concentration And The Amount Of Fsmentioning

confidence: 99%

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Removal of Acid Dyes from Textile Wastewaters Using Fish Scales by Absorption Process

et al. 2019

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Fish scales (FS), a byproduct of the fish processing industry, are often discarded carelessly. In this present study, FS were used as a promising bio-sorbent for the removal of anionic acid dyes (acid red 1 (AR1), acid blue 45 (AB45) and acid yellow 127 (AY127)) from the wastewaters of textile coloration. Here, physiochemical characterizations of the FS were investigated by SEM-EDS, TGA and FI-IR analyses, and dye absorption and removal efficiency were evaluated and optimized considering different process parameters such as concentration of initial dye solution, amount of FS used, contact time, FS size, process temperature, additives, stirring and vacuum. SEM images and EDS elemental analyses showed architectural variation and heterogeneous composition of FS at different places. TGA identified the 50% minerals, 33% organic matters and 17% moisture and volatile components. FI-IR evidenced considerable absorption of acid dyes. Process optimization revealed that additives and fine pulverized FS had significant positive and negative impact on the dye removal efficacy, respectively. Temperature and stirring improved dye removal efficiency, and dye absorption by FS was very fast at the beginning and became almost constant after an hour indicating saturation of absorption. The maximum dye absorptions in scales for AR1, AB45, and AY127 were noted as 1.8, 2.7 and 3.4 mg/g, respectively, and removal percentages were 63.5%, 89.3% and 93%. The effects of the process parameters were consistent across all three acid dyes used in this study. Two-way ANOVA model showed that dye type, process parameters and ‘dye type X process parameters’ interactions had significant effect on the dye removal efficiency.

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Section: Effect Of the Initial Dye Concentration And The Amount Of Fsmentioning

confidence: 55%

Section: Characterizationmentioning

confidence: 99%

Section: Sem and Edsmentioning

confidence: 99%

Section: Effect Of the Initial Dye Concentration And The Amount Of Fsmentioning

confidence: 99%

Section: Effect Of the Initial Dye Concentration And The Amount Of Fsmentioning

confidence: 99%

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Removal of Acid Dyes from Textile Wastewaters Using Fish Scales by Absorption Process

et al. 2019

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Fish Skin: A Natural Inspiration for Innovation

et al. 2018

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Natural materials and the structures they form, developed and perfected through millions of years of evolution, have long inspired researchers for innovations in science and engineering. One example, fish scales are notable for their strength, toughness, flexibility, and lightweight. These properties are the result of collagen fibrils and hydroxyapatite crystals that have been arranged into three‐layer structures through mechanical locking and chemical bonds, via a process that is still poorly understood. This review aims to compile the established knowledge on the composition, structure, and surface/interfacial features of fish scales. Using mainly Arapaima gigas as a focus, published information and supplementary data acquired through imaging, analytical techniques, and tensiometry are combined. This is done to take a closer look at the surfaces and interfaces of fish scales to identify their unique features and begin to overcome some of the limited understanding of surface functionalities that are created by nature.

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Thermally stable collagen from Piranha and Rohu with improved physical, biochemical, and morphological properties

Paul

Padmapriya

2021

J of Applied Polymer Sci

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Collagen is the most common structural protein pertinent to the skin and other tissues in humans. The market for collagen extends from food, cosmetics to therapeutics and is estimated to be $6.63 billion by 2025. Piranha and Rohu are some of the primarily consumed fish varieties in South India and the extraction of collagen from the scales of Piranha is reported for the first time through this study. Physical, biochemical, and morphological properties of the collagen extracted were compared with a freshwater variant, Rohu. The UV, IR spectra, amino acid, SDS PAGE analysis confirmed the presence of triple helical native conformation. Further, higher degree of solubility was observed at low pH and salt concentrations. The Td was 38.27 and 37.4°C and Tm was 92.37 and 94.04°C for the scale collagen of Piranha and Rohu respectively and was comparable to bovine sources. Electron micrograph presented loose, parallel oriented long fibers with interconnected fibrils. Hence the collagen extracted, having retained the helical conformation and higher thermal stability, can be a safe alternative for various biomedical applications.

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Assessment of fish scales waste as a low cost and eco-friendly adsorbent for removal of an azo dye: Equilibrium, kinetic and thermodynamic studies

Cited by 102 publications

References 32 publications

Removal of Acid Dyes from Textile Wastewaters Using Fish Scales by Absorption Process

Removal of Acid Dyes from Textile Wastewaters Using Fish Scales by Absorption Process

Fish Skin: A Natural Inspiration for Innovation

Thermally stable collagen from Piranha and Rohu with improved physical, biochemical, and morphological properties

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