Adsorption Characteristics of Dye onto Sludge Particulates

Jian‐min, Wang; Huang, Chun; Allen, Herbert E.; Daniel, K.; Kim, Dong-Wook

doi:10.1006/jcis.1998.5875

Cited by 113 publications

(70 citation statements)

References 17 publications

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“…Q e becomes larger with an increase of C e , and pH values do not affect the curve profiles. Adsorption isotherms are important for describing how adsorbates will interact with adsorbent (18). Thus, the correlation of equilibrium data using either a theoretical or empirical equation is essential to practical adsorption operation.…”

Section: Resultsmentioning

confidence: 99%

Adsorption of Water-Soluble Dye onto Functionalized Resin

Zhuang

Wang

2001

Journal of Colloid and Interface Science

300

104

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Section: Resultsmentioning

confidence: 99%

Adsorption of Water-Soluble Dye onto Functionalized Resin

Zhuang

Wang

2001

Journal of Colloid and Interface Science

300

104

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“…Many research studies on the adsorption behavior of dyes onto various solid surfaces, such as sludge (3)(4)(5)(6), textiles (7)(8)(9)(10)(11)(12), clay (13)(14)(15), alumina (16)(17)(18)(19), and so on (16), have been done mainly 1 To whom correspondence should be addressed.…”

Section: Introductionmentioning

confidence: 99%

Adsorption Behavior of Methylene Blue and Its Congeners on a Stainless Steel Surface

Imamura

Ikeda

Nagayasu

et al. 2002

Journal of Colloid and Interface Science

100

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“…Conventionally, BET nitrogen gas adsorption techniques have often been used for determining the SSA of hydrous solids. However, the obtained SSA values do not properly represent 1983;Figueroa and Silverstein 1989;Sorensen and Wakeman 1996;Wang et al 1998). It is assumed that the ash surface is completely covered by dye molecules when the adsorption isotherm is established.…”

Section: Specific Surface Area Determinationmentioning

confidence: 93%

“…Assuming that the ash surface was homogeneous, it is possible to consider the equilibrium adsorption process as multilayer adsorption when the following equations would apply (Wang et al 1998): where D is the equilibrium dye concentration (mol/l), S depicts the available ash surface sites (mol/g), S-D j is the ash surface complex (mol/g), and K 1 , K 2 ,. .…”

Section: Effect Of Ph On the Adsorption Isothermsmentioning

confidence: 99%

Adsorption Characteristics of New Coccine Dye on to Sludge Ash

Weng

2002

Adsorption Science & Technology

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ABSTRACT:The adsorption characteristics of an anionic azo dye (New Coccine) on to sewage sludge ash were studied. Results showed that the ash could remove the dye effectively from aqueous solution. The adsorption rate was fast and could be expressed by the modified Freundlich equation. It was found that pH is the most important parameter affecting the adsorption characteristics. The experimental data were correlated well to the non-linear multilayer adsorption isotherm. The ash adsorption capacities for the dye were in the range 3.25-5.70 mol/g and were affected by the pH, ionic strength and temperature. Decreasing pH, ionic strength and temperature increased the adsorption density. The effect of electrical doublelayer thickness on the adsorption was discussed. Thermodynamic parameters indicated that the adsorption was an exothermic process. Values of the first-layer adsorption energy, DG 1 0 , ranged from -6.86 to -7.45 kcal/mol, suggesting that the adsorption could be considered as a physical process simultaneously enhanced by the electrostatic effect. The multilayer adsorption energy, DG 2 0 , ranged from -4.33 to -4.51 kcal/mol, suggesting that the adsorption was of the typical physical type. On the basis of the monolayer dye adsorption capacity, the specific surface area of the ash was calculated as 3.84-6.73 m 2 /g.

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Adsorption Characteristics of Dye onto Sludge Particulates

Cited by 113 publications

References 17 publications

Adsorption of Water-Soluble Dye onto Functionalized Resin

Adsorption of Water-Soluble Dye onto Functionalized Resin

Adsorption Behavior of Methylene Blue and Its Congeners on a Stainless Steel Surface

Adsorption Characteristics of New Coccine Dye on to Sludge Ash

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