Removal of Bisphenol, Using Antimony Nanoparticle Multi-walled Carbon Nanotubes Composite from Aqueous Solutions

Samadi, Mohammad; Shokoohi, Reza; Poormohammadi, Ali; Azarian, Ghasem; Harati, Motahare; Shanesaz, Samane

doi:10.13005/ojc/320227

Cited by 13 publications

(2 citation statements)

References 14 publications

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“…Therefore, the PFO model was able to explain the adsorption of BPA on CF-HAP at all studied initial concentrations. Similar results have been reported by several authors (Peng et al 2015;Taghi et al 2016). Furthermore, the adsorption capacities of BPA onto CF-HAP noticeably increased as the initial concentration of BPA increased (from 20 mg/L to 40 mg/L).…”

Section: Adsorption Kinetics Of Bpasupporting

confidence: 90%

Ceramic hydroxyapatite foam as a new material for Bisphenol A removal from contaminated water

Khallok

Zbair

Ojala

et al. 2021

Environ Sci Pollut Res

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Ceramic hydroxyapatite foam (CF-HAP) was prepared by combining slip-casting and foaming methods.The prepared CF-HAP was characterized by scanning electron microscopy (SEM); physisorption of N2, Fourier transforms infrared spectroscopy (FTIR), and X-ray diffraction (XRD). The results of the specific surface area and SEM analyses revealed that the used shaping method provides CF-HAP with a wide range of porosity including macro and mesopores. Based on FTIR and XRD analyses, the CF-HAP is similar to pure well-crystallized hydroxyapatite. The adsorption results revealed that 94% of the BPA with a concentration of (40 mg/L) was effectively removed from the water and that the maximum adsorption capacity was higher in acidic than in basic medium. The thermodynamic studies indicated that the adsorption reaction was spontaneous and endothermic in nature. The adsorption capacity increased with the temperature and the BPA is chemisorbed on the ceramic foam. The isotherm data fitted slightly better with the Liu than with the Freundlich and Langmuir models suggesting that the adsorption was homogeneous and occurred only in the monolayer. The adsorption process depends largely on the BPA concentration and the results fitted well with the pseudo-first-order model. This confirms that the interaction between the BPA and the CF-HAP was mainly chemical in nature. The FTIR analysis of the used and fresh CF-HAP showed that all the hydroxyl and phosphorus bands characteristic of the hydroxyapatite shifted after adsorption of Bisphenol-A. This suggests that the adsorption of Bisphenol-A occurred in the sites of the Hydroxyapatite. Therefore, it can be concluded that the CF-HAP has the potential to be used as an adsorbent for wastewater treatment and purification processes.

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Section: Adsorption Kinetics Of Bpasupporting

confidence: 90%

Ceramic hydroxyapatite foam as a new material for Bisphenol A removal from contaminated water

Khallok

Zbair

Ojala

et al. 2021

Environ Sci Pollut Res

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“…The need to treat and reuse wastewater generated by urban and industrial areas for industrial and agricultural purposes has become urgent due to environmental crises resulting from wastewater discharge and the depletion of freshwater resources (1). The use of biological processes is highly prevalent in wastewater treatment and recycling, with activated sludge processes being particularly popular (2,3). These processes involve the utilization of microorganisms to effectively treat wastewater and facilitate its reuse.…”

Section: Introductionmentioning

confidence: 99%

Control of Filamentous Bacteria overgrowth by Changing the Hydraulic Flow Distribution of a Step-feed Biological Nitrogen Removal (SFBNR) Process-based WWTP: A Full-scale Study

Ghanbari Pak,

Shokoohi,

Godini

et al. 2023

Avicenna J Environ Health Eng

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To facilitate the wastewater recycling process while adhering to environmental and industrial regulations, it becomes imperative to meet stringent standards. This necessitates the effective elimination of organic substances, with particular emphasis on nitrogen-based compounds. To this end, activated sludge methods, particularly the step-feed biological nitrogen removal (SFBNR) process, are employed. Although various operational measures are employed in SFBNR systems, including the elimination of complex substrates, modifications in aeration conditions, the utilization of piston hydraulic flow, and the appropriate distribution of substrates, these systems remain susceptible to the excessive growth of filamentous bacteria. The current study aimed to examine the change in the distribution of the hydraulic flow entering this system on a real scale over a period of five years. It was observed that the quality of sludge settling improved and accordingly the overgrowth of filamentous Microthrix parvicella declined, thereby enhancing the quality of the effluent.

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Removal of nigrosine by MgO nanoparticles, green synthesized using Madhuca longifolia flower extract

Choudhury

Kodape

Bansod

2021

Environ Dev Sustain

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Removal of Bisphenol, Using Antimony Nanoparticle Multi-walled Carbon Nanotubes Composite from Aqueous Solutions

Cited by 13 publications

References 14 publications

Ceramic hydroxyapatite foam as a new material for Bisphenol A removal from contaminated water

Ceramic hydroxyapatite foam as a new material for Bisphenol A removal from contaminated water

Control of Filamentous Bacteria overgrowth by Changing the Hydraulic Flow Distribution of a Step-feed Biological Nitrogen Removal (SFBNR) Process-based WWTP: A Full-scale Study

Removal of nigrosine by MgO nanoparticles, green synthesized using Madhuca longifolia flower extract

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