Equilibrium Studies of Designed Metalloproteins

2016 ◽  
pp. 417-438 ◽  
Author(s):  
B.R. Gibney
Keyword(s):  
Equilibrium Studies

ADSORPTIVE REMOVAL OF Cu (II) IONS BY DATE PITS: KINETIC AND EQUILIBRIUM STUDIES

2016 ◽  
Vol 15 (12) ◽  
pp. 2719-2732 ◽  
Author(s):  
Tarek E. Khalil ◽  
Hossam Altaher ◽  
Reda Abubeah
Keyword(s):  
Equilibrium Studies ◽  
Adsorptive Removal ◽  
Date Pits

REMOVAL OF ACID BLACK DYE BY PUMICE STONE AS A LOW COST ADSORBENT: KINETIC, THERMODYNAMIC AND EQUILIBRIUM STUDIES

2013 ◽  
Vol 12 (11) ◽  
pp. 2137-2147 ◽  
Author(s):  
Mohammad Noori Sepehr ◽  
Mohammad Reza Samarghandi ◽  
Mansur Zarrabi ◽  
Abdeltif Amrane ◽  
Mohammad Mahdi Soori
Keyword(s):  
Low Cost ◽  
Equilibrium Studies ◽  
Pumice Stone

KINETICS AND EQUILIBRIUM STUDIES ON THE ABSTRACTION NICKEL FROM AQUEOUS SOLUTION USING CHEMICALLY TREATED COW HOOF

2017 ◽  
Vol 73 (3) ◽  
Author(s):  
Osasona Ilesanmi ◽  
Adebayo Albert Ojo ◽  
Okronkwo Elvis Afemafuna ◽  
Johnson Jonathan ◽  
Osunlana Oluronke
Keyword(s):  
Aqueous Solution ◽  
Equilibrium Studies ◽  
Chemically Treated

Equilibrium Studies of Binary and Ternary Complexes of Palladium(II) Involving Amino Acids

1993 ◽  
Vol 58 (5) ◽  
pp. 1103-1108 ◽  
Author(s):  
Mohamed M. Shoukry ◽  
Eman M. Shoukry
Keyword(s):  
Amino Acids ◽  
Relative Stability ◽  
Ternary Complex ◽  
Formation Constants ◽  
Ternary Complexes ◽  
Conductivity Measurements ◽  
Equilibrium Studies ◽  
Binary And Ternary Complexes ◽  
Binary Complexes

The formation constants of the binary and ternary complexes of palladium(II) with diethylenetriamine and amino acids as ligands have been determined potentiometrically at 25 °C in 0.1 M NaNO3 solution. The relative stability of each ternary complex was compared with that of the corresponding binary complexes in terms of ∆logK values. The mode of chelation was ascertained by conductivity measurements.

Comparative Equilibrium Studies for Citric Acid by Amberlite LA-2 or Tridodecylamine (TDA)

2009 ◽  
Vol 54 (7) ◽  
pp. 1991-1996 ◽  
Author(s):  
Şahika Sena Bayazit ◽  
Hasan Uslu ◽  
İsmail İnci
Keyword(s):  
Citric Acid ◽  
Equilibrium Studies

scholarly journals Phosphate Removal Using Polyethylenimine Functionalized Silica-Based Materials

2021 ◽  
Vol 13 (3) ◽  
pp. 1502
Author(s):  
Maria Xanthopoulou ◽  
Dimitrios Giliopoulos ◽  
Nikolaos Tzollas ◽  
Konstantinos S. Triantafyllidis ◽  
Margaritis Kostoglou ◽  
...  
Keyword(s):  
Sorption Capacity ◽  
Removal Rate ◽  
Phosphate Concentration ◽  
Phosphate Removal ◽  
Equilibrium Studies ◽  
Maximum Sorption Capacity ◽  
Algae Blooms ◽  
Maximum Sorption ◽  
Phosphate Anions ◽  
Adsorbent Dose

In water and wastewater, phosphate anions are considered critical contaminants because they cause algae blooms and eutrophication. The present work aims at studying the removal of phosphate anions from aqueous solutions using silica particles functionalized with polyethylenimine. The parameters affecting the adsorption process such as pH, initial concentration, adsorbent dose, and the presence of competitive anions, such as carbonate, nitrate, sulfate and chromate ions, were studied. Equilibrium studies were carried out to determine their sorption capacity and the rate of phosphate ions uptake. The adsorption isotherm data fitted well with the Langmuir and Sips model. The maximum sorption capacity was 41.1 mg/g at pH 5, which decreased slightly at pH 7. The efficiency of phosphate removal adsorption increased at lower pH values and by increasing the adsorbent dose. The maximum phosphate removal was 80% for pH 5 and decreased to 75% for pH 6, to 73% for pH 7 and to 70% for pH 8, for initial phosphate concentration at about 1 mg/L and for a dose of adsorbent 100 mg/L. The removal rate was increased with the increase of the adsorbent dose. For example, for initial phosphate concentration of 4 mg/L the removal rate increased from 40% to 80% by increasing the dose from 0.1 to 2.0 g/L at pH 7. The competitive anions adversely affected phosphate removal. Though they were also found to be removed to a certain extent. Their co-removal provided an adsorbent which might be very useful for treating waters with low-level multiple contaminant occurrence in natural or engineered aquatic systems.

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