Treatment and Physicochemical Characterisation of Red Wood Sawdust

M’hamdi, Asmae Ismaili; Kandri, N. Idrissi; Zerouale, Abdelaziz; Blumberga, Dagnija; Gusca, Julija

doi:10.1016/j.egypro.2016.09.083

Cited by 15 publications

(6 citation statements)

References 10 publications

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“…The peaks at 1300–1,000 cm −1 could be assigned to the C–O stretching vibration of hemicelluloses and lignin [18] . For WA (Figure 2b), the characteristic peaks are observed at 1,495 cm −1 representing carbonate group (CO 3 2− ), the peaks at 1,032 and 955 cm −1 assigned to Si−O symmetric stretching and the peak at 3,644 cm −1 representing CaO bond stretching [19] . Spectrum of CB is not given as it absorbs the whole range of infrared region.…”

Section: Resultsmentioning

confidence: 96%

Utilization of Sawdust and Wood Ash as a Filler in Natural Rubber Composites

et al. 2021

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This study focuses on the feasibility of using sawdust (SD) and wood ash (WA) as a filler in natural rubber composite. Both SD and WA were characterized by several techniques prior to being incorporated into natural rubber (NR). Properties of the rubber composites filled with various loadings of SD and WA, including cure characteristics, mechanical properties and morphology, were measured. Results reveal that the particles of SD and WA are relatively large and irregular. The main compositions of SD are cellulose, lignin and hemicellulose whereas those of WA are SiO2, Al2O3, Fe2O3, carbonates and oxides of the alkali metals, namely CaO, MgO, Na2O, K2O, etc. After being incorporated into NR, hardness and modulus of the NR composites gradually increase with increasing SD and WA loadings. Compared with SD, WA provides a slightly lower magnitude of reinforcement, possibly due to its lower rubber‐filler interaction. However, the addition of WA significantly shortens the vulcanization time due to its high basicity. Interestingly, tensile strength of the NR composites is not significantly impaired with the addition of SD or WA up to 30 phr. Nevertheless, due to their relatively large particle size, both SD and WA show considerably lower magnitude of reinforcement than carbon black (CB). The results indicate the potential use of SD and WA as an inert filler for cost‐reduction purpose in the rubber industry which helps to raise the environmental credentials of the product.

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Section: Resultsmentioning

confidence: 96%

Utilization of Sawdust and Wood Ash as a Filler in Natural Rubber Composites

et al. 2021

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“…Sawdust as a lignocellulosic material can be utilized as a sustainable precursor to produce activated carbon. In fact, the major chemical constituents of sawdust are hemicellulose, cellulose, and lignin [12,15,49]. On average, the quantitative percentages of hemicellulose, cellulose, and lignin in the sawdust are observed in the range of 15-35, 35-60, and 15-30%, respectively [13,46,50].…”

Section: Chemical Composition Of Sawdustmentioning

confidence: 99%

“…e selection of each precursor should be based on its availability, its low cost, and its abundance. us, sawdust as a lignocellulosic material, freely accessible and abundant (up to 24.15 million m 3 per year worldwide [15]), can be utilized as a good precursor for alternative activated carbon.…”

Section: Introductionmentioning

confidence: 99%

Efficiency of Sawdust as Low-Cost Adsorbent for Dyes Removal

Chikri

Elhadiri

Benchanâa

et al. 2020

Journal of Chemistry

117

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In recent years, the removal of dyes from wastewater has attracted considerable attention due to their harmful effects to ecosystem and human health. Adsorption as a facile and effective technique has been widely used to eliminate a large variety of dyes from aqueous solutions. Activated carbon is the most preferred adsorbent to treat wastewater but its use is limited because of high cost. Therefore, several low-cost and natural materials and wastes have been used as precursors for the preparation of alternative adsorbents. Among them, sawdust as an abundant and low-cost by-product has been explored as adsorbent for the removal of dyes from wastewater. This review focuses on the various sawdust used as a precursor for the preparation of activated carbons. Extensive literature information about sawdust, its compositions, activation methods, its efficiency for dyes removal, and environmental conditions effects has been reviewed. The applicability of various adsorption kinetic models and adsorption isotherm models for dye removal by sawdust-derived activated carbons has been also reported. Finally, this paper highlights the use of sawdust as base material for various composites and mixture which can be used as granular activated carbon.

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“…Figure 3 shows the surface morphology of sawdust, Magnesol® and Amberlite™ BD10DRY™, as revealed by SEM images. Analyzing Figure 3(A-B), an irregular surface and rough shape are observed, as well as small cavities in the woody structure [51][52][53] that can influence the adsorption of compounds such as glycerin, soaps and water from the transesterification process. The spherical shape of Magnesol® [41] is shown in Figure 3(C-D), revealing spaces between each adsorbent particle, which could diminish the surface contact with the biodiesel impurities.…”

Section: Biodiesel Characterizationmentioning

confidence: 99%

“…The EDS results obtained during SEM analysis are shown in Figure 3(G); the elements with the highest content are C (61%) and O (39%) by weight of sawdust [52][53][54], in addition to the presence in a smaller proportion of Ca, K, Cu and Al. The appearance of Al may be because the samples were in contact with aluminum foil for storage, and Cu was part of the fixation support tape.…”

Section: Morphology Of Adsorbentsmentioning

confidence: 99%

Biodiesel Dry Purification Using Unconventional Bioadsorbents

Arenas¹,

Villafan²,

Mejía³

et al. 2020

Preprint

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The dry washing method is an alternative to replace water washing, thereby reducing the negative impacts of contamination. However, commercial adsorbents come from industrial processes that, due to their composition, may not be such a sustainable resource in the global biodiesel production process. In this study, the use of organic residues, such as sawdust, coconut fiber, nutshell, rice husk and water hyacinth fiber, were proposed as bioadsorbents for the purification of biodiesel from waste cooking oil (WCO). Quality parameters such as the acid value, water content, and free and total glycerin content were evaluated and compared with those of commercial resins such as Magnesol® and Amberlite™. Promising results were obtained using sawdust during the purification process, achieving a 31.6% reduction in the acid value compared to that of unpurified biodiesel, the reduction was 31.3% more efficient than Amberlite™. Sawdust adsorbed free glycerin at 55.8%, being more efficient than Amberlite™. The total glycerin values were similar between commercial resins and sawdust. A water content values were similar than Amberlite™ and better than that with Magnesol®, at 4.3% and 39.81%, respectively. These results show that sawdust can be used as an alternative bioadsorbent in a dry purification method for biodiesel being a residue with less environmental impact.

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Treatment and Physicochemical Characterisation of Red Wood Sawdust

Cited by 15 publications

References 10 publications

Utilization of Sawdust and Wood Ash as a Filler in Natural Rubber Composites

Utilization of Sawdust and Wood Ash as a Filler in Natural Rubber Composites

Efficiency of Sawdust as Low-Cost Adsorbent for Dyes Removal

Biodiesel Dry Purification Using Unconventional Bioadsorbents

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