Methylene blue adsorption by the waste of Abu-Tartour phosphate rock

Malash, Gihan F.; El-Khaiary, Mohammad I.

doi:10.1016/j.jcis.2010.05.005

Cited by 98 publications

(37 citation statements)

References 42 publications

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“…The maximum regression coefficient values were obtained as 0.911, 0.998 and 0.984 for BEW, HBEW and UBEW, respectively at Langmuir isotherm model. This indicates that the adsorption of MB on these three adsorbents takes place as monolayer adsorption on a surface of adsorbent is homogeneous in adsorption affinity (Malash and El-Khaiary, 2010). Similar results were found in other studies (Lee, Kim et al, 2011), (Tang, Zhou et al, 2012).…”

Section: Determination Of Adsorption Isothermssupporting

confidence: 89%

“…A number of natural adsorbents were examined for the treatment of dyes, such as clays as an alternative to activated carbon to decrease the operation costs (Gupta, Srivastava et al, 1997, Kannan andSundaram, 2001). In recent years, various types of waste materials were applied as adsorbent for dye removal such as ash (Janoš, Buchtová et al, 2003, Mittal, Mittal et al, 2009, blast furnace dust , fertilizer waste (Gupta, Srivastava et al, 1998, slag (Ramakrishna andViraraghavan, 1997, Gupta, Ali et al, 2003), agricultural residues materials (Mittal, Krishnan et al, 2005;Mittal, Mittal et al, 2010, Ahmaruzzaman and, waste tea (Gokce and Aktas, 2014), lubrication oil/palm waste (AlOthman, Habila et al, 2014), potato plant waste (Gupta, Kushwaha et al, 2016), rice husk (Sharma, Kaur et al, 2010), cotton waste (Ertaş, Acemioğlu et al, 2010), phosphate rock (Malash and El-Khaiary, 2010), citrus limetta peel waste (Shakoor and Nasar, 2016) and red mud (Gupta, Suhas et al, 2004) etc.…”

Section: Introductionmentioning

confidence: 99%

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Acid and Ultrasound Assisted Modification of Boron Enrichment Process Waste and Using for Methylene Blue Removal from Aqueous Solutions

2018

Global NEST Journal

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ultrasound assisted modification of boron enrichment process waste and using for methylene blue removal from aqueous solutions, Global NEST Journal, 20(X), XX-XX. AbstractIn this study, raw boron enrichment waste was treated with hydrochloric acid and ultrasound at 35-kHz frequency for 60 minutes. To optimize the adsorption conditions for removal of methylene blue (MB) from synthetic wastewaters using raw boron enrichment waste (BEW), acid modified boron enrichment waste (HBEW) and ultrasound modified BEW (UBEW) by adsorption process and to compare the adsorption efficiency of chemical and ultrasonic modifications of BEW were aimed. The optimum adsorption conditions were determined economically and eco-friendly aspect and MB removal percents were found as 80%, 80% and 92% at optimum conditions for BEW, HBEW and UBEW, respectively. The maximum regression coefficient values were obtained as 0.911, 0.998 and 0.984 for BEW, HBEW and UBEW, respectively at Langmuir isotherm model. The adsorption rate was fitted well to pseudo-second order kinetics according to a good correlation coefficient. The adsorption of MB onto adsorbents studied is spontaneous in nature and feasible because of negative ∆G values. The results indicated that the boron enrichment process waste could be a suitable adsorbent for removal of MB from aqueous solution. The maximum adsorption capacities were equal to about 107,0 mg/g, 160,7 mg/g and 145,3 mg/g for BEW, HBEW and UBEW adsorbents at 298 K, respectively. The maximum dye removal percent was achieved for UBEW as 92% and ultrasound assisted modification was found more efficient method compared with acidic modification for MB removal.

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Section: Determination Of Adsorption Isothermssupporting

confidence: 89%

Section: Introductionmentioning

confidence: 99%

Acid and Ultrasound Assisted Modification of Boron Enrichment Process Waste and Using for Methylene Blue Removal from Aqueous Solutions

2018

Global NEST Journal

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“…Removal of cationic dye from wastewater can be achieved by adsorption onto solid surfaces. Methylene blue (MB) is a cationic dye and absorbs on a variety of solids, such as kaolinite [1], montmorillonite [2][3][4][5][6], palygorskite [7,8], sepiolite [7,9], diatomaceous earth [10,11], activated carbons [12], and even wastes of phosphorous rocks [13]. The mechanism of MB removal using these sorbents was attributed to cation exchange.…”

Section: Introductionmentioning

confidence: 99%

Mechanism of methylene blue removal from water by swelling clays

Li¹,

Chang²,

Jiang³

et al. 2011

Chemical Engineering Journal

105

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“…Additionally, q e values determined using the pseudo-second-order kinetic model are more in agreement with the experimentally values (q exp ) than those obtained with the pseudo-first-order model. Such results suggest that chemical interactions are responsible for the adsorption of MB and CR onto CFS clay [12]. …”

Section: Adsorption Kineticsmentioning

confidence: 85%