Bioflocculation of (Iron oxide – Silica) system using Bacillus cereus bacteria isolated from Egyptian iron ore surface

Selim, K. A.; Rostom, Merit

doi:10.1016/j.ejpe.2017.07.002

Cited by 17 publications

(5 citation statements)

References 14 publications

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“…Therefore, the type of adsorption that occurred is mainly chemical adsorption, which makes the apatite's surface more hydrophobic than the quartz's surface and, ultimately, enhances its separation. These results run in agreement with the zeta potential and the adhesion measurement and with the preceding work (Combes et al, 2006;Michelot et al, 2015;Sarvamangala et al, 2017;Selim and Rostom, 2018;Mokhtar et al, 2020). The adsorption of protein (amino acids) products of Bacillus cereus onto the apatite is responsible for the higher adsorption affinity to the apatite surface, in comparison to quartz.…”

Section: Ftir Measurementssupporting

confidence: 90%

Proteomic profile to explain the mechanism of the Bacillus cereus-phosphate mineral interaction

El-Ghammaz¹,

Hassan²,

Abdel-Khalek³

2021

Physicochem. Probl. Miner. Process.

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Bacillus cereus bacteria and their by-products were used as surface-active agents for surface hydrophobicity of the apatite in the flotation process leading to phosphate ores' enrichment. Recently, proteomics is used to investigate the biochemical processes through discovering new proteins or investigating protein-protein interactions. In this work, we investigated the physicochemical behavior of pure apatite and quartz minerals in the presence of Bacillus cereus using zeta-potential, FTIR, and hydrophobicity measurements. Our results indicated that isoelectric point (IEP) occurred at pH 4.7 for apatite and 2.1 for quartz mineral. Bacillus cereus treatment decreased IEP of apatite to 1.8; while there was no significant change in IEP value of quartz. We used comprehensive proteomic profile analysis of Bacillus cereus in the presence of apatite mineral to identify the biological mechanism and molecules involved in such enrichment capacity. Our data identified the up-regulated Surface Layer (S-Layer) protein in this bacterial strain to be associated with the best mineral yield.

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Section: Ftir Measurementssupporting

confidence: 90%

Proteomic profile to explain the mechanism of the Bacillus cereus-phosphate mineral interaction

El-Ghammaz¹,

Hassan²,

Abdel-Khalek³

2021

Physicochem. Probl. Miner. Process.

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“…B. licheniformis (PTCC1320) improved kaolin settlement by approximately 40% when bacteria cells and metabolites were used for pH 7 and 3, respectively, and quartz sedimentation by more than 50% at pH 1-3 [81]. B. cereus isolated from Egyptian iron ore deposits was used to selectively flocculate a suspension of hematite and silica [87].…”

Section: Bioflocculation Of Mineralsmentioning

confidence: 99%

The Role of Biomodification in Mineral Processing

Pawlowska,

Sadowski

2023

Minerals

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Increasing environmental concern forces the reduction in the share of synthetic surfactants in the production of various industries, including mineral processing, by replacing them with more environmentally friendly compounds of biological origin. Several studies on the use of biosurfactants in mineral processing are currently available in the literature, but they contain limited information related to the physicochemistry of these processes. Therefore, this review aims to summarise publications from the last decade related to the role of microorganisms and their metabolic products in mineral surface modification applied in mineral processing. Theoretical principles of bacteria–mineral interactions are presented. Salt-type, sulphide, and oxide minerals were discussed with greater attention to the physicochemistry of biosurfactant–mineral interactions, such as the wettability and surface charge. The advantages and disadvantages of using bacterial cells and surface-active microbial compounds were proposed. The trends and challenges of biomodification in flotation and flocculation were discussed.

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“…Disamping itu, metode ini tidak menghasilkan racun atau blooming, mudah implementasinya, serta tidak menggunakan biaya yang besar (Lewaru et al, 2012 (Nababan, 2015). Meskipun tergolong sebagai bakteri penyebab keracunan, B.cereus mengandung senyawa asam amino yang dapat mendukung proses pengikatan koloid tersuspensi sehingga mampu mengikat logam Fe hingga 70% (Kurniawan et al, 2022;Selim & Rostom, 2018).…”

Section: Pendahuluanunclassified

Potensi Bacillus cereus dan Bacillus subtilis Menurunkan Kandungan Logam Fe dan Mn pada Air Asam Tambang

Nadhirawaty¹,

Santo²,

Wicaksono³

et al. 2022

jurnalagriment

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Acid mine drainage (AMD) with pH 2,56, also high concentration of Fe and Mn respectively 35 mg/L and 8,83 mg/L should be treated to prevent the pollution. AMD treatment can be done by adding bacteria. Bacillus cereus and Bacillus subtilis isolated from AMD sample using selective media agar. Each bacteria was added 5% and 10% to the 200 mL AMD sample separately. The result shows that the highest removal of Fe and Mn in AMD was 62.03% and 18.02% with 10% B. cereus. Meanwhile, with addition 5% B.subtilis shows the highest Fe and Mn removal respectively 41.91% and 16.79%. Therefore, these bacteria have potential to decrease Fe and Mn concentrations in AMD.

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Bioflocculation of (Iron oxide – Silica) system using Bacillus cereus bacteria isolated from Egyptian iron ore surface

Cited by 17 publications

References 14 publications

Proteomic profile to explain the mechanism of the Bacillus cereus-phosphate mineral interaction

Proteomic profile to explain the mechanism of the Bacillus cereus-phosphate mineral interaction

The Role of Biomodification in Mineral Processing

Potensi Bacillus cereus dan Bacillus subtilis Menurunkan Kandungan Logam Fe dan Mn pada Air Asam Tambang

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