Study of PAN Fiber and Iron ore Adsorbents for Arsenic Removal

Bhatti, Zulfiqar Ali; Qureshi, Khadija; Maitlo, Ghulamullah; Ahmed, Shoaib

doi:10.28991/cej-2020-03091491

Cited by 85 publications

(8 citation statements)

References 20 publications

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“…These systems are commonly founded on physicochemical collaborations between metal particles and utilitarian gatherings present on the cell surface, which incorporates ionexchange, complexion, electrostatic fascination, and micro precipitation (Mack et al, 2008). Bhatti et al (2020) proposed the removal of arsenic (as As 3+ and As 5+ ) by using polyacrylonitrile (PAN) fibre and iron ore as adsorbent. This study revealed that that the modified PAN had better adsorption efficiency than the iron ore adsorbent for the treatment of both As 3+ and As 5+ upon adsorption study.…”

Section: Background Of the Studymentioning

confidence: 99%

Potential of Mangifera indica activated carbon for removal of chromium and iron

et al. 2020

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The heavy metals are exceptionally responsive at low fixations and can accumulate in the food web, causing extreme general wellbeing concerns. Remediation utilizing customary physical and substance techniques is uneconomical and creates huge volumes of compound waste. Bioremediation of risky metals has gotten impressive and developing enthusiasm throughout the years. Adsorption of Cr 3+ and Fe 2+ from its aqueous solution on biosorbent Mango leaf powder (MLP) was prepared from matured Mango (Mangifera indica) leaves. The study was carried out by batch adsorption experiments using atomic adsorption spectroscopy upon various parameters used to assess their impact on the adsorption of metal ions. The achieved results evidenced the adsorption of Cr 3+ and Fe 2+ on MLP is better. The higher adsorption ability was shown about 237.5 and 227.5 mg/g respectively at 50 mg/L concentration of metal ions and 100 mg/L of MLP. Besides, the adsorption of Cr 3+ and Fe 2+ on MLP was found to be fitted with the Freundlich isotherm. Thermodynamic results showed the sorption process is feasible, spontaneous, and endothermic. Kinetic parameters had shown that the adsorption of Cr 3+ and Fe 2+ ions found as pseudo-second-order kinetics; also this current study proposing that ABOUT THE AUTHORS Dr. Ramesh Duraisamy, Industrial Chemist's working as an Associate Professor in Arba Minch University, Ethiopia. His profound expertise in the field of research includes water and wastewater treatment, waste management, sugar and food technology, textile and leather technology, Nano-material's development. His contributions in the above said research fields evident through his publications.Mihretu Mechoro, M.Sc student (physical chemistry) of Arba Minch University. His thesis focused on the removal of heavy metals from wastewater using biosorbent activated carbon.Dr. Tolera Seda Badessa, expertise the research fields as in Ion transport mechanism through ion exchange membrane upon electrodialysis/reversal elctrodialysis, etc. His profound contribution in the field of research has proven through the research articles were published in esteemed journals.Dr. Masood Akhtar Khan, Analytical Chemist's in Arba Minch University, Ethiopia. He has published many research articles in the field of ion exchange, adsorption of heavy metals and analysis of substances.

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Section: Background Of the Studymentioning

confidence: 99%

Potential of Mangifera indica activated carbon for removal of chromium and iron

et al. 2020

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“…Markedly, the hydroxyl groups of RBC600-nZVI were ominously augmented as compared with the RBC600, which supported relatively more adsorption pockets for Cr(VI) adsorption [31]. There was a sharp peak at 2924 cm −1 which contributed to C-H stretching vibration (-CH 3 or -CH 2 group) [30,32].…”

Section: Ftirmentioning

confidence: 92%

“…An absorption peak obviously occurred at 3440 cm −1 , which ranged between 3200 and 3500 cm −1 , representing the intermolecular stretching of the hydrogen (H) bonding and thereby representing the peak of the hydroxyl group [30]. Markedly, the hydroxyl groups of RBC600-nZVI were ominously augmented as compared with the RBC600, which supported relatively more adsorption pockets for Cr(VI) adsorption [31]. There was a sharp peak at 2924 cm −1 which contributed to C-H stretching vibration (-CH3 or -CH2 group) [30,32].…”

Section: Ftirmentioning

confidence: 98%

Efficient Removal of Hexavalent Chromium from an Aquatic System Using Nanoscale Zero-Valent Iron Supported by Ramie Biochar

et al. 2021

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In this study, ramie biochar (RBC) was used to activate nano zero-valent iron (nZVI) to enhance hexavalent chromium (Cr(VI)) removal. The best results were obtained at a pyrolysis temperature of 600 °C, a biochar particle size of < 150 μm, and an iron to carbon ratio = 1:1. Under the optimal conditions, the removal of Cr(VI) by RBC600-nZVI (98.69%) was much greater than that of RBC600 (12.42%) and nZVI (58.26%). Scanning electron microscopy (SEM), X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FT-IR), and X-ray photoelectron spectroscopy (XPS) revealed that the reaction mechanism at the Fe and Cr interface was a multiple interaction mechanism with reduction dominated, adsorption, and co-precipitation simultaneously. The enhanced performance of RBC600-nZVI resulted from the effective dispersion of nZVI on the surface of RBC600, therefore increasing the adsorption activity sites. At the same time, RBC600 and nZVI exerted a synergistic influence on the composite structure, which jointly promoted the reduction reaction of Cr(VI) and removed more Cr(VI). This study shows that RBC-nZVI is a potentially valuable remediation material that not only provides a new idea for the utilization of ramie waste, but also effectively overcomes the limitations of nZVI, thus, achieving efficient and rapid remediation of Cr(VI).

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“…The factors such as, restrict pH range, swift organic-load variations, and the effluent's physical-chemical characteristics check the degradation efficiency of the biological processes that have been widely used for dairy wastewater treatment [5,6]. Adsorption is a promising technique because of its ease of use, increased proficiency, low-cost requirements, and great reproducibility [7]. Furthermore, because the process is usually reversible, the adsorbents can be readily regenerated and reused [8].…”

Section: Introductionmentioning

confidence: 99%

TiO2 Nanoparticles as Bifunctional Adsorbent/Photocatalyst for Degradation of Effluent from Local Dairy in Telangana

P¹,

S.V²

2022

YMER

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Contamination of precious life sources with industrial waste including dairy effluent is an increasing concern worldwide. Over the past few years, titanium dioxide nanoparticles have drawn worldwide attention as an efficient photocatalyst and adsorbent for wastewater treatment. The current study refers to the potential of nitrogen doped titanium dioxide nanoparticles as an adsorbent and photocatalyst to purify wastewater from the local dairy to meet the quality of wastewater discharged into public sewers. The Nitrogen doped titanium dioxide (TiO2) Nano Materials were prepared by sol-gel technique and calcined at various temperatures. Characterization techniques such as SEM, XRD and FTIR were performed and Zeta potential was estimated. Efficiency of degradation as applied to dairy effluent has been examined varying the parameters such as time of exposure and dose of nanoparticles along with solution pH variation monitored during study. A good reduction in COD of about 99 % was observed after treatment under visible light. It is observed that calcining temperature affects activity of TiO2 nano particles. Furthermore, statistical analysis that represent experimental response as a function of independent parameters as well as analyse the interaction between the parameters was successfully employed. The results showed that TiO2 nanoparticles can be employed as adsorbents for the treatment of dairy waste water. Keywords: Adsorbent, Chemical oxygen demand, Dairy effluent, Doping, nanoparticles, TiO2

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Study of PAN Fiber and Iron ore Adsorbents for Arsenic Removal

Cited by 85 publications

References 20 publications

Potential of Mangifera indica activated carbon for removal of chromium and iron

Potential of Mangifera indica activated carbon for removal of chromium and iron

Efficient Removal of Hexavalent Chromium from an Aquatic System Using Nanoscale Zero-Valent Iron Supported by Ramie Biochar

TiO2 Nanoparticles as Bifunctional Adsorbent/Photocatalyst for Degradation of Effluent from Local Dairy in Telangana

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