Efficient removal of dyes from seawater using as biosorbent the dead and living biomass of the microalga Phaeodactylum tricornutum: equilibrium and kinetics studies

2021 ◽  
Author(s):  
Sergio Santaeufemia ◽  
Julio Abalde ◽  
Enrique Torres
Keyword(s):  
Phaeodactylum Tricornutum ◽  
Efficient Removal ◽  
Kinetics Studies ◽  
Living Biomass ◽  
Equilibrium And Kinetics ◽  
The Dead

scholarly journals Silica Removal from a Paper Mill Effluent by Adsorption on Pseudoboehmite and γ-Al2O3

Water ◽  
2021 ◽  
Vol 13 (15) ◽  
pp. 2031
Author(s):  
Ruben Miranda ◽  
Isabel Latour ◽  
Angeles Blanco
Keyword(s):  
Paper Mill ◽  
Ph Adjustment ◽  
Paper Mill Effluent ◽  
Kinetics Studies ◽  
Silica Removal ◽  
Industrial Water Use ◽  
Optimum Ph ◽  
Initial Ph ◽  
Equilibrium And Kinetics ◽  
Kinetics Of

Effluent reuse is a common practice for sustainable industrial water use. Salt removal is usually carried out by a combination of membrane processes with a final reverse osmosis (RO). However, the presence of silica limits the RO efficiency due to its high scaling potential and the difficulty of cleaning the fouled membranes. Silica adsorption has many advantages compared to coagulation and precipitation at high pHs: pH adjustment is not necessary, the conductivity of treated waters is not increased, and there is no sludge generation. Therefore, this study investigates the feasibility of using pseudoboehmite and its calcination product (γ-Al2O3) for silica adsorption from a paper mill effluent. The effect of sorbent dosage, pH, and temperature, including both equilibrium and kinetics studies, were studied. γ-Al2O3 was clearly more efficient than pseudoboehmite, with optimal dosages around 2.5–5 g/L vs. 7.5–15 g/L. The optimum pH is around 8.5–10, which fits well with the initial pH of the effluent. The kinetics of silica adsorption is fast, especially at high dosages and temperatures: 80–90% of the removable silica is removed in 1 h. At these conditions, silica removal is around 75–85% (<50 mg/L SiO2 in the treated water).

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

A facile approach of adsorption of acid blue 9 on aluminium silicate-coated Fuller's Earth––Equilibrium and kinetics studies

2020 ◽  
Vol 19 ◽  
pp. 100503
Author(s):  
Y. Subbareddy ◽  
R. Naresh Kumar ◽  
B.K. Sudhakar ◽  
K. Rayappa Reddy ◽  
Surendra Kumar Martha ◽  
...  
Keyword(s):  
Kinetics Studies ◽  
Equilibrium And Kinetics ◽  
Fuller’S Earth ◽  
Acid Blue ◽  
Aluminium Silicate

Equilibrium and kinetics studies of 2,4,5-trichlorophenol adsorption onto organophilic-bentonite

2010 ◽  
Vol 24 (1-3) ◽  
pp. 47-54 ◽  
Author(s):  
Hassina Zaghouane-Boudiaf ◽  
Mokhtar Boutahala
Keyword(s):  
Kinetics Studies ◽  
Equilibrium And Kinetics

Equilibrium and kinetics studies for the adsorption of Basic Red 46 on nickel oxide nanoparticles-modified diatomite in aqueous solutions

2014 ◽  
Vol 45 (4) ◽  
pp. 1792-1802 ◽  
Author(s):  
Reza Khalighi Sheshdeh ◽  
Mohammad Reza Khosravi Nikou ◽  
Khashayar Badii ◽  
Nargess Yousefi Limaee ◽  
Gelayol Golkarnarenji
Keyword(s):  
Aqueous Solutions ◽  
Nickel Oxide ◽  
Oxide Nanoparticles ◽  
Nickel Oxide Nanoparticles ◽  
Kinetics Studies ◽  
Equilibrium And Kinetics ◽  
Basic Red 46 ◽  
Modified Diatomite
Sign in / Sign up

Export Citation Format

Share Document