Comparison studies of adsorption properties for copper ions in fuel ethanol and aqueous solution using silica-gel functionalized with 3-amino-1,2-propanediol

Fuel ◽  
2018 ◽  
Vol 226 ◽  
pp. 331-337 ◽  
Author(s):  
Congcong Dong ◽  
Rao Fu ◽  
Changmei Sun ◽  
Rongjun Qu ◽  
Chunnuan Ji ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Silica Gel ◽  
Copper Ions ◽  
Fuel Ethanol ◽  
Adsorption Properties

Study of colloidal properties of natural and Al-pillared smectite and removal of copper ions from an aqueous solution

2014 ◽  
Vol 36 (6) ◽  
pp. 786-795 ◽  
Author(s):  
Lucas Resmini Sartor ◽  
Antonio Carlos de Azevedo ◽  
Gabriel Ramatis Pugliese Andrade
Keyword(s):  
Aqueous Solution ◽  
Copper Ions ◽  
Colloidal Properties

Biosorption of copper ions from aqueous solution using Chlorella pyrenoidosa: Optimization, equilibrium and kinetics studies

2019 ◽  
Vol 145 ◽  
pp. 119-129 ◽  
Author(s):  
V.R. Moreira ◽  
Y.A.R. Lebron ◽  
S.J. Freire ◽  
L.V.S. Santos ◽  
F. Palladino ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Copper Ions ◽  
Chlorella Pyrenoidosa ◽  
Kinetics Studies ◽  
Equilibrium And Kinetics

scholarly journals Adsorption of Copper Ions (Cu++) in Aqueous Solution Using Activated Carbon and Biosorbent from Indian Jujube (Ziziphus mauritiana) Seed Hulls

2020 ◽  
pp. 13-24
Author(s):  
Harouna Massai ◽  
Djakba Raphael ◽  
Mouhamadou Sali
Keyword(s):  
Aqueous Solution ◽  
Activated Carbon ◽  
Copper Ions ◽  
Carbon Powder ◽  
Ziziphus Mauritiana ◽  
Batch Mode ◽  
Freundlich Model ◽  
Jar Test ◽  
Standard Procedures ◽  
Indian Jujube

The present work aimed at mitigating the level of copper ions (Cu++) by adsorption in aqueous solution using activated carbon powder (AC) and biosorbent (BS) from the Indian jujube seed hulls. The AC and BS were prepared from the Indian jujube seed hulls and characterized    using standard procedures. In addition, the adsorption effects of Indian jujube seed hulls through the AC and BS were carried out using jar test experiment (batch mode) at different pH (1, 2, 3, and 4), ionic strengths (100-600 mg/L) and stirring speed (120rpm). Therefore, it was found that the adsorption time at equilibrium were 10 and 5 minutes respectively for the AC and the BS.  Furthermore, it was found that the reduction of copper ions were 99.40% and 73.08% for aqueous solutions of 100 ppm and 500 ppm respectively at the equilibrium state. It was also revealed that when the mass of the AC or the BS increases, the quantities of ions adsorbed per gram decrease. The maximum pH of adsorption for the AC was found to be pH=1, while it was found to be pH=4 for the BS. The Freundlich model indicated that the adsorption of copper ions by the Indian jujube is linear while the Temkin and Dubinin-Kagana-Radushkevich models described the adsorption as a physical reaction. It was finally observed that the adsorption of copper ions by the AC and the BS from Indian jujube seed hulls influenced by the addition of some concentration of NaCl.

scholarly journals Removal of-Copper Ions-from Aqueous Solution Using Liquid-Surfactant-Membrane Technique

2019 ◽  
Vol 20 (3) ◽  
pp. 31-37
Author(s):  
Huda M. Salman ◽  
Ahmed Abed Mohammed
Keyword(s):  
Aqueous Solution ◽  
Copper Ions ◽  
Energy Requirement ◽  
Precipitation Method ◽  
Feed Concentration ◽  
Waste Solution ◽  
Optimum Parameters ◽  
Membrane Technique ◽  
Feed Phase ◽  
Aqueous Feed

Extraction of copper (Cu) from aqueous solution utilizing Liquid Membrane technology (LM) is more effective than precipitation method that forms sludge and must be disposed of in landfills. In this work, we have formulated a liquid surfactant membrane (LSM) that uses kerosene oil as the main diluent of LSM to remove copper ions from the aqueous waste solution through di- (2-ethylhexyl) phosphoric acid - D2EHPA- as a carrier. This technique displays several advantages including one-stage extraction and stripping process, simple operation, low energy requirement, and. In this study, the LSM process was used to transport Cu (II) ions from the feed phase to the stripping phase, which was prepared, using H2SO4. For LSM process, various parameters have been studied such as carrier concentration; treat ratio (TR), agitating speed and initial feed concentration. After finding the optimum parameters, it was possible to extract Cu up to 95% from the aqueous feed phase in a single stage extraction.

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