scholarly journals Basic-dye adsorption in albedo residue: Effect of pH, contact time, temperature, dye concentration, biomass dosage, rotation and ionic strength

2020 ◽  
Vol 32 (6) ◽  
pp. 351-359 ◽  
Author(s):  
Carlos Eduardo de Farias Silva ◽  
Brígida Maria Villar da Gama ◽  
Andreza Heloiza da Silva Gonçalves ◽  
Josimayra Almeida Medeiros ◽  
Ana Karla de Souza Abud
Keyword(s):  
Ionic Strength ◽  
Contact Time ◽  
Dye Adsorption ◽  
Effect Of Ph ◽  
Basic Dye ◽  
Biomass Dosage

Parameters Affecting Dye Adsorption - Using Graphene Coated Sand (GSC)

2018 ◽  
Vol 4 (02) ◽  
Author(s):  
Seroor Atalah Khaleefa Alia ◽  
Dr. Mohammed Ibrahimb ◽  
Hussein Ali Hussein
Keyword(s):  
Heavy Metals ◽  
Contact Time ◽  
Organic Dyes ◽  
Low Cost ◽  
Dye Adsorption ◽  
Contaminated Water ◽  
Maximum Adsorption Capacity ◽  
Engineering Designs ◽  
Heavy Metals Ions ◽  
Coated Sand

Adsorption is most commonly applied process for the removal of pollutants such as dyes and heavy metals ions from wastewater. The present work talks about preparing graphenic material attached sand grains called graphene sand composite (GSC) by using ordinary sugar as a carbon source. Physical morphology and chemical composition of GSC was examined by using (FTIR, SEM, EDAX and XRD). Efficiency of GSC in the adsorption of organic dyes from water was investigated using reactive green dye with different parameters such as (ph, temperature, contact time and dose). Adsorption isotherm was also studied and the results showed that the maximum adsorption capacity of dye is 28.98 mg/g. This fast, low-cost process can be used to manufacture commercial filters to treat contaminated water using appropriate engineering designs.

scholarly journals The effect of pH and ionic strength of dissolution media on in-vitro release of two model drugs of different solubilities from HPMC matrices

2013 ◽  
Vol 111 ◽  
pp. 384-391 ◽  
Author(s):  
Kofi Asare-Addo ◽  
Barbara R. Conway ◽  
Hassan Larhrib ◽  
Marina Levina ◽  
Ali R. Rajabi-Siahboomi ◽  
...  
Keyword(s):  
Ionic Strength ◽  
In Vitro Release ◽  
Effect Of Ph ◽  
Vitro Release

Sorption of Eu(III) and Am(III) on attapulgite: effect of pH, ionic strength and fulvic acid

2010 ◽  
Vol 98 (1) ◽  
Author(s):  
Qiao Hui Fan ◽  
M. L. Zhang ◽  
Y. Y. Zhang ◽  
K. F. Ding ◽  
Z. Q. Yang ◽  
...  
Keyword(s):  
Ionic Strength ◽  
Fulvic Acid ◽  
Effect Of Ph

Biosorption of As(V) from aqueous solutions by living cells of Bacillus cereus

2012 ◽  
Vol 66 (8) ◽  
pp. 1699-1707 ◽  
Author(s):  
A. K. Giri ◽  
R. K. Patel ◽  
P. C. Mishra
Keyword(s):  
Aqueous Solutions ◽  
Bacillus Cereus ◽  
Contact Time ◽  
Living Cells ◽  
Optimum Conditions ◽  
Order Model ◽  
Initial Concentration ◽  
Pseudo Second Order ◽  
Biomass Dosage ◽  
Batch Biosorption

In this work, the biosorption of As(V) from aqueous solutions by living cells of Bacillus cereus has been reported. The batch biosorption experiments were conducted with respect to biosorbent dosage 0.5 to 15 g/L, pH 2 to 9, contact time 5 to 90 min, initial concentration 1 to 10 mg/L and temperature 10 to 40 °C. The maximum biosorption capacity of B. cereus for As(V) was found to be 30.04 at pH 7.0, at optimum conditions of contact time of 30 min, biomass dosage of 6 g/L, and temperature of 30 ± 2 °C. Biosorption data were fitted to linearly transformed Langmuir isotherms with R2 (correlation coefficient) >0.99. Bacillus cereus cell surface was characterized using AFM and FTIR. The metal ions were desorbed from B. cereus using both 1 M HCl and 1 M HNO3. The pseudo-second-order model was successfully applied to predict the rate constant of biosorption.

Basic dye adsorption on activated carbon

1979 ◽  
Vol 12 (3) ◽  
pp. 307-317 ◽  
Author(s):  
Gordon McKay
Keyword(s):  
Activated Carbon ◽  
Dye Adsorption ◽  
Basic Dye
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