Removal of lead from aqueous solutions with a treated spent bleaching earth

Mana, M.; Ouali, Mohand Saïd; Lindheimer, Marc; Menorval, L. C. De

doi:10.1016/j.jhazmat.2008.02.079

Cited by 44 publications

(15 citation statements)

References 33 publications

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“…On the other hand, the FESEM image of BE ( Fig. 5(c)) shows agglomerate of fine particles and fibrous-like structure similar to the image observed in previous literatures [42,43]. Hence, the absence of pores on BE surface could be an indication that the retention of suspended solids is mostly due to the gaps between the particles.…”

Section: Turbidity and Tss Removal Efficiencysupporting

confidence: 82%

Effect of different filter aids used in cake filtration process on the removal of suspended solids in anaerobically digested palm oil mill effluent (POME)

Zafisah

Ang

Johnson

et al. 2018

Desalination and Water Treatment

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Section: Turbidity and Tss Removal Efficiencysupporting

confidence: 82%

Effect of different filter aids used in cake filtration process on the removal of suspended solids in anaerobically digested palm oil mill effluent (POME)

Zafisah

Ang

Johnson

et al. 2018

Desalination and Water Treatment

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“…Sodium hydroxide solution was used to regenerate a spent bleaching earth from an edible oil refinery by Mana et al (2008). Sodium hydroxide solution was used to regenerate a spent bleaching earth from an edible oil refinery by Mana et al (2008).…”

Section: Impregnation Clay Minerals With Base and Saltsmentioning

confidence: 99%

Clay Materials for Environmental Remediation

Ismadji

Soetaredjo

Ayucitra

2015

SpringerBriefs in Molecular Science

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“…It has been reported that SBC can be treated with NaOH to convert the residual oil into soap to be discarded. Meanwhile, the remaining bleaching clay has been used as an adsorbent for lead [7]. However, on the downside, the residual oil was discarded without any use and wastewater was generated during soap removal from the treated bleaching clay.…”

Section: Introductionmentioning

confidence: 99%

Regeneration and Reutilization of Oil‐Laden Spent Bleaching Clay via in Situ Transesterification and Calcination

Boey

Ganesan

Maniam

2011

J Americ Oil Chem Soc

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Landfill bound waste from the oil palm industry, spent bleaching clay (SBC) containing significant amounts of adsorbed crude palm oil (CPO) has the potential to be used for biodiesel production. In this study, SBC was subjected to ultrasound-aided in situ transesterification with a co-solvent to convert the oil into methyl esters (biodiesel). Optimized reaction conditions used were 5.4 wt% KOH, methanol to oil mass ratio of 5.9:1 and 1:1 mass ratio of co-solvent (petroleum ether or ethyl methyl ketone) to SBC. The remaining bleaching clay was calcined at 500°C for 30 min and reutilized for bleaching. Absence of -CH absorption peaks in the FTIR and TGA-FTIR analysis of regenerated clays shows the regeneration efficiency of the method. In situ transesterification and heat regeneration helped to restore pores without adversely affecting the clay structure. The use of ethyl methyl ketone (EMK) as the co-solvent in the in situ transesterification process produced clay with better bleaching qualities.

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Removal of lead from aqueous solutions with a treated spent bleaching earth

Cited by 44 publications

References 33 publications

Effect of different filter aids used in cake filtration process on the removal of suspended solids in anaerobically digested palm oil mill effluent (POME)

Effect of different filter aids used in cake filtration process on the removal of suspended solids in anaerobically digested palm oil mill effluent (POME)

Clay Materials for Environmental Remediation

Regeneration and Reutilization of Oil‐Laden Spent Bleaching Clay via in Situ Transesterification and Calcination

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