Amine-functionalized magnetic bamboo-based activated carbon adsorptive removal of ciprofloxacin and norfloxacin: A batch and fixed-bed column study

2018 ◽  
Vol 249 ◽  
pp. 924-934 ◽  
Author(s):  
Xiaoming Peng ◽  
Fengping Hu ◽  
Tao Zhang ◽  
Fengxian Qiu ◽  
Hongling Dai
Keyword(s):  
Activated Carbon ◽  
Fixed Bed ◽  
Fixed Bed Column ◽  
Column Study ◽  
Adsorptive Removal ◽  
Amine Functionalized

Microwave induced activated carbon for the removal of metal ions in fixed-bed column study: modelling and mechanisms

2021 ◽  
Vol 221 ◽  
pp. 139-151
Author(s):  
Omar S.A. Al-Khazrajy ◽  
Salam A. Mohammed ◽  
Omaimah Al-Musallami ◽  
Zahour Al-Rawahi ◽  
Emad Yousif
Keyword(s):  
Activated Carbon ◽  
Metal Ions ◽  
Fixed Bed ◽  
Fixed Bed Column ◽  
Column Study ◽  
Removal Of Metal ◽  
Removal Of Metal Ions

Aqueous phase adsorption of cephalexin by walnut shell-based activated carbon: A fixed-bed column study

2016 ◽  
Vol 375 ◽  
pp. 144-153 ◽  
Author(s):  
Ghadir Nazari ◽  
Hossein Abolghasemi ◽  
Mohamad Esmaieli ◽  
Ehsan Sadeghi Pouya
Keyword(s):  
Activated Carbon ◽  
Aqueous Phase ◽  
Fixed Bed ◽  
Walnut Shell ◽  
Fixed Bed Column ◽  
Column Study

scholarly journals Bimetallic Fe/Al-MOF for the Adsorptive Removal of Multiple Dyes: Optimization and Modeling of Batch and Hybrid Adsorbent-river Sand Column Study

2021 ◽  
Author(s):  
Hemant Singh ◽  
Sankalp Raj ◽  
Rishi karan singh rathour ◽  
Jayanta Bhattacharya
Keyword(s):  
Experimental Data ◽  
Flow Rate ◽  
Fixed Bed ◽  
Maximum Adsorption Capacity ◽  
Feed Concentration ◽  
River Sand ◽  
Fixed Bed Column ◽  
Column Study ◽  
Adsorptive Removal ◽  
Bed Height

Abstract Bimetallic Metal organic framework (MOF) has garnered interest over the years with its application in various environmental remediation. In this study, Fe-Al-1,4-Benzene di-Carboxylic acid (FeAl(BDC)) MOF was synthesized, and adsorptive removal of Rhodamine B dye in batch and unique hybrid FeAl (BDC)-River sand fixed-bed column was achieved. The experimental data from the batch studies corroborated well with the Pseudo second-order (PSO) and Freundlich adsorption isotherm models. Furthermore, a fixed-bed column study was conducted to assess the effect of varying flow rate (2, 5, 8 mL/min), bed height (5, 9, 13 cm), and feed concentration (10, 20, 30 mg/L) on the adsorption performance of FeAl(BDC) in continuous mode of operation. A uniform mixture of river sand and FeAl(BDC) by weight ratio (9:1) was achieved prior to packing the column. The column study reveals that Sand-FeAl(BDC) can achieve the maximum adsorption capacity of 113.05 mg/g at a flow rate of 5 mL/min, feed concentration of 20 mg/L, and bed height of 13 cm. The experimental data of the column study were successfully fitted with BDST, Thomas, Yoon-Nelson, and Dose-response models. The fitting parameter values from the BDST model raise the scope of possible upscaling of the fixed-bed column. Hence, it is proposed that these River sand-FeAl(BDC)-based filters can be widely used in areas facing critical contamination and in poor communities with a high demand for water.

Thermodynamics of Formaldehyde Removal by Adsorption onto Nanosilver Loaded Bamboo-Based Activated Carbon

2017 ◽  
Vol 890 ◽  
pp. 93-97
Author(s):  
Wara Dyah Pita Rengga ◽  
Sri Wahyuni ◽  
Agung Feinnudin
Keyword(s):  
Activated Carbon ◽  
Adsorption Capacity ◽  
Adsorption Process ◽  
Fixed Bed ◽  
Formaldehyde Concentration ◽  
Fixed Bed Column ◽  
Adsorptive Removal ◽  
Formaldehyde Removal ◽  
Different Temperatures ◽  
Formaldehyde Adsorption

The performance of nanosilver loaded bamboo-based activated carbon as an adsorbent used for the adsorptive removal of formaldehyde in the air. The size porous of the active carbon is predominantly on the size of mesoporous and microporous. Adsorption tests have been evaluated in laboratory scale fixed-bed column, at different temperatures and initial formaldehyde concentration. In order to investigate is both equilibrium and thermodynamic aspects. The experimental data was fitted with Langmuir model and fit well with the adsorption capacity of 91-110 mg/g. The increase in temperature reduces the adsorption capacity. The thermodynamic parameters show that the values of ∆Go obtained to confirm the feasibility of activated carbon effective sorbents of formaldehyde. The formaldehyde adsorption process is exothermic and adsorbent has a good affinity to formaldehyde.

Removal of Cr(VI) using co-immobilized activated carbon and Bacillus subtilis: fixed-bed column study

2016 ◽  
Vol 19 (1) ◽  
pp. 251-258 ◽  
Author(s):  
C. Sukumar ◽  
V. Janaki ◽  
K. Vijayaraghavan ◽  
S. Kamala-Kannan ◽  
K. Shanthi
Keyword(s):  
Bacillus Subtilis ◽  
Activated Carbon ◽  
Fixed Bed ◽  
Fixed Bed Column ◽  
Column Study

Biochar caged zirconium ferrite nanocomposites for the adsorptive removal of Reactive Blue 19 dye in a batch and column reactors and conditions optimizaton

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Shazia Perveen ◽  
Raziya Nadeem ◽  
Shaukat Ali ◽  
Yasir Jamil
Keyword(s):  
Experimental Data ◽  
Low Dose ◽  
Fixed Bed ◽  
Breakthrough Curves ◽  
Adsorption Efficiency ◽  
Fixed Bed Column ◽  
Flow Rates ◽  
Adsorptive Removal ◽  
Reactive Blue 19 ◽  
Pseudo Second Order

Abstract Biochar caged zirconium ferrite (BC-ZrFe2O5) nanocomposites were fabricated and their adsorption capacity for Reactive Blue 19 (RB19) dye was evaluated in a fixed-bed column and batch sorption mode. The adsorption of dye onto BC-ZrFe2O5 NCs followed pseudo-second-order kinetics (R 2 = 0.998) and among isotherms, the experimental data was best fitted to Sips model as compared to Freundlich and Langmuir isotherms models. The influence of flow-rate (3–5 mL min−1), inlet RB19 dye concentration (20–100 mg L−1) and quantity of BC-ZrFe2O5 NCs (0.5–1.5 g) on fixed-bed sorption was elucidated by Box-Behnken experimental design. The saturation times (C t /C o  = 0.95) and breakthrough (C t /C o  = 0.05) were higher at lower flow-rates and higher dose of BC-ZrFe2O5 NCs. The saturation times decreased, but breakthrough was increased with the initial RB19 dye concentration. The treated volume was higher at low sorbent dose and influent concentration. Fractional bed utilization (FBU) increased with RB19 dye concentration and flow rates at low dose of BC-ZrFe2O5 NCs. Yan model was fitted best to breakthrough curves data as compared to Bohart-Adams and Thomas models. Results revealed that BC-ZrFe2O5 nanocomposite has promising adsorption efficiency and could be used for the adsorption of dyes from textile effluents.

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