scholarly journals Disinfection and removal performance for Escherichia coli and heavy metals by silver-modified zeolite in a fixed bed column

2016 ◽  
Vol 295 ◽  
pp. 92-98 ◽  
Author(s):  
Lulu Akhigbe ◽  
Sabeha Ouki ◽  
Devendra Saroj
Keyword(s):  
Escherichia Coli ◽  
Heavy Metals ◽  
Fixed Bed ◽  
Fixed Bed Column ◽  
Modified Zeolite

Analysis of Fixed-Bed Column Adsorption of Reactive Yellow 176 onto Surfactant-Modified Zeolite

2008 ◽  
Vol 47 (18) ◽  
pp. 6999-7004 ◽  
Author(s):  
Ayşegul Faki ◽  
Mustafa Turan ◽  
Ozgur Ozdemir ◽  
Abdullah Zahid Turan
Keyword(s):  
Fixed Bed ◽  
Fixed Bed Column ◽  
Modified Zeolite ◽  
Column Adsorption

Biosorption of heavy metals from actual electroplating wastewater using encapsulatedMoringa oleiferabeads in fixed bed column

2014 ◽  
Vol 57 (8) ◽  
pp. 3572-3587 ◽  
Author(s):  
Kannan Radhakrishnan ◽  
Lakshmi Sethuraman ◽  
Radha Panjanathan ◽  
Aparna Natarajan ◽  
Vishali Solaiappan ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Fixed Bed ◽  
Fixed Bed Column ◽  
Electroplating Wastewater ◽  
Biosorption Of Heavy Metals

scholarly journals Cu adsorption in fixed bed column with three different influent concentration

2019 ◽  
Vol 120 ◽  
pp. 03003
Author(s):  
Huang-Mu Lo ◽  
Kae-Long Lin ◽  
Min-Hsin Liu ◽  
Hsung-Ying Chiu ◽  
Fang-Cheng Lo
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Activated Carbon ◽  
Fixed Bed ◽  
Thomas Model ◽  
Fixed Bed Column ◽  
Nelson Model ◽  
Influent Concentration ◽  
Carbon Adsorption ◽  
Metals Removal

Heavy metals from the electroplating wastewater might cause environmental pollution if not well treated. Generally, carbon adsorption might be used for the final step for further trace metals removal. This study investigated the heavy metal Cu adsorption in the fixed bed column with 1, 10 and 100 mg/L influent concentration. Results showed that KAB decreased as influent Cu concentration increased from 1 to 100 mg/L while N0 increased as influent concentration increased from 1 to 100 mg/L as can be found in Adams-Bohart model. R2 was found between 0.8579 and 0.9182. In Thomas model. KTH and q0 showed the similar trend as KAB and N0 in the Adams-Bohart model. KTH decreased as influent Cu concentration increased from 1 to 100 mg/L. q0 increased as influent Cu concentration increased from 1 to 100 mg/L. R2 of regression model was found between 0.9065 and 0.9836. In Yoon-Nelson model. KYN increased as influent Cu concentration increased from 1 to 100 mg/L while τ decreased as influent Cu concentration increased from 1 to 100 mg/L. Results showed that the three models of Adams-Bohart model, Thmoas model and The Yoon-Nelson model were suitable for the description of Cu adsorption by activated carbon.

Nitrate sorption from water on a Surfactant-Modified Zeolite. Fixed-bed column experiments

2011 ◽  
Vol 142 (2-3) ◽  
pp. 549-556 ◽  
Author(s):  
Joachim Schick ◽  
Philippe Caullet ◽  
Jean-Louis Paillaud ◽  
Joël Patarin ◽  
Claire Mangold-Callarec
Keyword(s):  
Fixed Bed ◽  
Column Experiments ◽  
Fixed Bed Column ◽  
Modified Zeolite

scholarly journals Adsorption of arsenic and heavy metals from solutions by modified iron ore sludge

2019 ◽  
Vol 41 (3) ◽  
pp. 259-271
Author(s):  
Nguyen Quoc Bien ◽  
Nguyen Thi Hoang Ha
Keyword(s):  
Heavy Metals ◽  
Iron Ore ◽  
Negative Impact ◽  
Fixed Bed ◽  
Sodium Silicate Solution ◽  
Silicate Solution ◽  
Fixed Bed Column ◽  
Column Adsorption ◽  
Adsorption Data ◽  
Pseudo Second Order

Water pollution with arsenic (As) and heavy metals has been a major considering issue because of their negative impact on ecosystems and human health. This study was conducted to evaluate the adsorption behavior of As and heavy metals by iron ore sludge modified by the addition of 10% sodium silicate solution and heating at 400°C (SBC2-400-10S) in both batches and fixed–bed column experiments. The kinetics showed that the removal of As and heavy metals by the adsorbent is a pseudo-second-order reaction. The adsorption data fitted well with Langmuir isotherm and provided Langmuir monolayer capacity (mg/g) of As and heavy metals in the following order: Pb (2.379) > Cd (2.008) > Zn (1.915) > Mn (1.692) > As (0.452). The column adsorption data were fairly well described by Thomas model, with the order of Thomas adsorption capacity following a similar trend as in the batch study. The results of this study indicated that SBC2-400-10S was a potential adsorbent for removal of As and heavy metals from solutions.

scholarly journals Removal of Heavy Metals from Steel Making Waste Water by Using Electric Arc Furnace Slag

2012 ◽  
Vol 9 (4) ◽  
pp. 2557-2564 ◽  
Author(s):  
C. L. Beh ◽  
T. G. Chuah ◽  
M. N. Nourouzi ◽  
T. Choong
Keyword(s):  
Heavy Metals ◽  
Fixed Bed ◽  
Oxygen Demand ◽  
Electric Arc Furnace ◽  
Electric Arc ◽  
Arc Furnace ◽  
Fixed Bed Column ◽  
Steel Making ◽  
Electric Arc Furnace Slag ◽  
Furnace Slag

This work investigated the reduction of chemical oxygen demand (COD), biological oxygen demand (BOD), total suspended solids (TSS) and the concentration of heavy metals of wastewater from a steel making plant. Adsorption experiments were carried out by electric arc furnace slag (EAFS) in a fixed-bed column mode. The raw wastewater did not meet the standard B limitations, having high values of BOD, COD, TSS, Iron, Zinc, Manganese and Copper. After passing through the fixed bed column, BOD, COD and TSS values decreased to 1.6, 6.3 and <2 mgL-1, respectively while the concentration of Iron, Zinc, Manganese and Copper were 0.08, 0.01, 0.03 and 0.07 mgL-1, respectively. The results confirmed that EAFS can be used as an efficient adsorbent for producing treated water that comply with the Standard B limitations for an industrial effluent.

Treating High Nitrate Groundwater Using Surfactant Modified Zeolite in Fixed Bed Column

2011 ◽  
Vol 46 (7) ◽  
pp. 1131-1137 ◽  
Author(s):  
Mike Masukume ◽  
Akbar Eskandarpour ◽  
Maurice S. Onyango ◽  
Aoyi Ochieng ◽  
Fred Otieno
Keyword(s):  
Fixed Bed ◽  
Fixed Bed Column ◽  
Modified Zeolite
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