‘Waste’ coir pith—a potential biomass for the treatment of dyeing wastewaters

Namasivayam, C.; Kumar, Manoj; Selvi, K. Thamarai; Begum, Razia; Vanathi, T; Yamuna, R. T.

doi:10.1016/s0961-9534(01)00052-6

Cited by 240 publications

(110 citation statements)

References 17 publications

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“…The above reasons have prompted enormous research interest in the use of agricultural waste as starting materials because of their low-cost and widespread availability. Some examples of agrowaste that have been used for the removal of dyes are palm kernel fibers [12] , coir pith [13] , sugarcane bagasse [14] , banana peel [15] , peanut hull [16] , rice bran and wheat bran [17] , rice husk [18] , tea waste [19] , waste apricot [20] , rubber seed coat [21] , coconut shell [22] , apple pomace and wheat straw [23] , halzelnut shell [24] , plum kernel [25] , corncob and barley husk [26] , bamboo [27] , grass waste [28] , pumpkin seed hull [29] and garlic peel [30] . Methyl Red (MR) is a commonly used monoazo dye in laboratory assays, textiles and other commercial products; however, it may cause eye and skin sensitization [31] and pharyngeal or digestive tract irritation if inhaled or swallowed [32] .…”

Section: Introductionmentioning

confidence: 99%

The Removal of Methyl Red from Aqueous Solutions Using Banana Pseudostem Fibers

Haris¹,

Sathasivam²

2009

American J. of Applied Sciences

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Problem statement:The aim of this study was to investigate the removal of methyl red, a mutagenic monoazo dye, from various aqueous solutions using banana pseudostem fibers of the size 212-350 micron. Approach: The parameters studied were the effect of pH, amount of adsorbent, contact time, concentration of adsorbate and agitation speed. Results: Equilibrium data were fitted to the Langmuir and Freundlich isotherm models. The data were best represented by the latter with an adsorption capacity and adsorption intensity of 0.351 and 0.302, respectively. Conclusion/Recommendations: Specific rate constants of the processes were calculated by kinetic measurements and a pseudo second order adsorption kinetics was obtained for all cases.

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Section: Introductionmentioning

confidence: 99%

The Removal of Methyl Red from Aqueous Solutions Using Banana Pseudostem Fibers

Haris¹,

Sathasivam²

2009

American J. of Applied Sciences

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“…Adsorption has received considerable attention for color removal from wastewaters as it offers the most economical and effective treatment methods. Due to high cost of activated carbon, adsorption on natural materials such as sand [5][6][7], saw dust [8][9][10][11], rice husk [10][11], used tea leaves [13][14], coconut coir [15], bagasse [16][17], banana pith [11], fly ash [10][11], orange peel [18] and modified biomaterials [19][20][21] have received considerable interest because of their local availability and their practically low cost. Use of above biomass materials [8][9][10][11][12][13][14][15][16][17][18][19][20][21] in batch adsorption process has been found to be highly effective, cheap and eco-friendly.…”

Section: Introductionmentioning

confidence: 99%

Comparative Adsorption of Methylene Blue on Different Low Cost Adsorbents by Continuous Column Process

Hossain¹,

Ali²,

Islam³

2018

ILCPA

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Abstract. Dyes are commonly found in the effluents of many industries. The effectiveness of adsorption for the removal of dye from wastewaters has been made it an ideal alternative to other expensive treatment methods. Continuous column adsorption is more affective than batch adsorption. A comparative column adsorption study was performed using three different low cost adsorbents for the removal of methylene blue from synthetic wastewater. Sand was collected from Cox's Bazar, and sugarcane bagasse and used black tea leaves were locally prepared in laboratory. Three columns were designed for different adsorbents maintaining all conditions were to be approximately similar. UV-vis spectroscopic method was used for analysis of methylene blue in solution. Column adsorption experiments were performed to investigate the comparison of breakthrough curves and exhaust capacity of three different adsorbents. Column study shows that the adsorption capacity of used black tea leaves is highest. The adsorption capacity of bagasse is lower than tea leaves but higher than sand.

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“…Mane et al (2007) reported that the colored effluent from these industries is a dramatic source of aesthetic pollution and perturbation of aquatic life. According to Namasivayam et al (2001) and Waranusantigul et al (2003), dye effluents in receiving streams interfere with transmission of light into streams and reduce photosynthesis. Many dye compounds and their metabolites are either, toxic, carcinogenic or teratogenic (Gong et al, 2007).…”

Section: Introductionmentioning

confidence: 99%

Silica gel matrix immobilized Chlorophyta hydrodictyon africanum for the removal of methylene blue from aqueous solutions: Equilibrium and kinetic studies

Muzarabani¹,

Mupa²,

Gwatidzo³

et al. 2015

Afr. J. Biotechnol.

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Chlorophyta hydrodictyon africanum was immobilized on a silica gel matrix to improve its mechanical properties. The algae-silica gel adsorbent was used for batch sorption studies of a cationic dye, methylene blue (MB). Optimum adsorption was obtained with a dosage of 0.8 g bio sorbent. Results from sorption studies show that 124.11 mg·g -1 of MB could be adsorbed at an optimum pH of 8 and immobilization of 300 mg per gram silica. Maximum immobilization was 400 mg biomass per gram silica. Sorption capacity increased with an increase in initial dye concentration and reached equilibrium within 30 min. Three models were used to simulate kinetic data and the pseudo-second order model gave a better fit with R 2 greater than 0.98 in all cases. Equilibrium studies revealed that the adsorption of MB followed Freundlich isotherm (R 2 =1.00).

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‘Waste’ coir pith—a potential biomass for the treatment of dyeing wastewaters

Cited by 240 publications

References 17 publications

The Removal of Methyl Red from Aqueous Solutions Using Banana Pseudostem Fibers

The Removal of Methyl Red from Aqueous Solutions Using Banana Pseudostem Fibers

Comparative Adsorption of Methylene Blue on Different Low Cost Adsorbents by Continuous Column Process

Silica gel matrix immobilized Chlorophyta hydrodictyon africanum for the removal of methylene blue from aqueous solutions: Equilibrium and kinetic studies

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