Clay Materials for Environmental Remediation

Ismadji, Suryadi; Soetaredjo, Felycia Edi; Ayucitra, Aning

doi:10.1007/978-3-319-16712-1

Cited by 86 publications

(74 citation statements)

References 97 publications

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“…3 represents FESEM images of kaolin powders at different particle sizes. As can be observed, the kaolin particles at both particle sizes show crystallinity flake-like structure [26]. The crystallinity of kaolin was confirmed by XRD, which shows same peak for both types of kaolin (Fig.…”

Section: Characteristics Of Kaolin Powdersupporting

confidence: 71%

Effect of kaolin particle size and loading on the characteristics of kaolin ceramic support prepared via phase inversion technique

Hubadillah

Harun

Othman

et al. 2016

Journal of Asian Ceramic Societies

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a b s t r a c tIn this study, low cost ceramic supports were prepared from kaolin via phase inversion technique with two kaolin particle sizes, which are 0.04-0.6 m (denoted as type A) and 10-15 m (denoted as type B), at different kaolin contents ranging from 14 to 39 wt.%, sintered at 1200 • C. The effect of kaolin particle sizes as well as kaolin contents on membrane structure, pore size distribution, porosity, mechanical strength, surface roughness and gas permeation of the support were investigated. The support was prepared using kaolin type A induced asymmetric structure by combining macroporous voids and sponge-like structure in the support with pore size of 0.38 m and 1.05 m, respectively, and exhibited ideal porosity (27.7%), great mechanical strength (98.9 MPa) and excellent gas permeation. Preliminary study shows that the kaolin ceramic support in this work is potential to gas separation application at lower cost.

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Section: Characteristics Of Kaolin Powdersupporting

confidence: 71%

Effect of kaolin particle size and loading on the characteristics of kaolin ceramic support prepared via phase inversion technique

Hubadillah

Harun

Othman

et al. 2016

Journal of Asian Ceramic Societies

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“…Used oil bleaching can be occurred using raw bleaching clay, activated bleaching clay, amorphous silicates and activated carbon [46]. Bentonite clay has a high bleaching potential, it is mostly used to remove the color and smell of the product [47].…”

Section: Bleachingmentioning

confidence: 99%

Clay Adsorption Perspective on Petroleum Refining Industry

Emam¹

2018

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Clays are the most utilized minerals and considered very efficient and economical sorbents according to their chemical and physical properties. Clays are enjoying rapid popularity in the petroleum refining industry for the various processes such as adsorption and separation. Removal of many components such as sulfur, heavy metals, colors and separation of different hydrocarbon groups of crude oil and petroleum fractions can be carried out by clay adsorption. The present review summarizes the using of clay as adsorbent in several petroleum refining processes such as desulphurization, deasphalting, waste oil recovery, bleaching, corrosion reduction, heavy metals removal and other. One of the simplest, easiest and efficient separation processes used in different industries is adsorption. Review results show that different types of clay are obtainable and used in many applications. Clay adsorption can be enhanced the treatment and finishing of crude oils and petroleum fractions through several modifications such as metals impregnation, acid and thermal activations. Bentonite clays promote the highest adsorption capacity to remove sulfur and a high bleaching potential. Attapulgite clay is effective in decolorization and neutralization any petroleum oil. Impregnation of NiO nanoparticles into kaolin improves the asphaltenes adsorption. Several modified as well as unmodified clays promote the highest removal efficiency of Ni and V from crude oil. Additionally, the adsorption pre-treatment affects the reduction in corrosion yields and the corrosion rate.

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“…The positive charged interface serves as bonding sites for phosphates adsorption. Surface charges on the pellets are produced as a result of the hydrolysis of the Si-OH or Al-OH bonds along the clay lattice [57]. These charges could be positively and negatively charged, depending on the pH and structure of the silica.…”

Section: Effect Of Phmentioning

confidence: 99%

The Adsorptive Properties of Fired Clay Pellets for the Removal of Phosphate in Wastewater Treatment

Wood¹,

Augustine²,

Mark³

et al. 2016

Fourth International Conference on Advances in Bio-Informatics, Bio-Technology and Environmental Engineering - ABBE 2016

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Abstract-Removal of phosphate in wastewater treatment is crucial to reducing nutrient enrichment and eutrophication of aquatic bodies. This study explored the potential of fired clay pellets for use in phosphate removal during wastewater treatment. The mechanism of removal was evaluated in a batch adsorption study under different experimental conditions. Fired clay pellets were found to be effective in the adsorptive removal of phosphate from aqueous solution with a maximum adsorption capacity of 144mg/g. The experimental data showed a good fit to the pseudo-first-order kinetic model indicating a physical nature of the sorption process and also followed Dubinin-Radushkeivich Isotherm model. Adsorption of phosphate favoured acidic pH with optimum removal at pH 3-4. The values of Gibbs free energy (-16.5 kJ/mol), enthalpy (-8.87 kJ/mol) indicated adsorption was spontaneous and exothermic. The mechanism was found to be predominantly physisorption supported by some diffusion.

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Clay Materials for Environmental Remediation

Cited by 86 publications

References 97 publications

Effect of kaolin particle size and loading on the characteristics of kaolin ceramic support prepared via phase inversion technique

Effect of kaolin particle size and loading on the characteristics of kaolin ceramic support prepared via phase inversion technique

Clay Adsorption Perspective on Petroleum Refining Industry

The Adsorptive Properties of Fired Clay Pellets for the Removal of Phosphate in Wastewater Treatment

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