The Use of Algae in the Process of Cadmium and Lead Ions Removal from Wastewater

2021 ◽  
Vol 23 ◽  
pp. 823-834
Author(s):  
Katarzyna Cygnarowska
Keyword(s):  
Binding Sites ◽  
Industrial Wastewater ◽  
Water Reservoir ◽  
Lead Ions ◽  
Algal Culture ◽  
Algal Population ◽  
Raphidocelis Subcapitata ◽  
Resistance To Stress ◽  
Cadmium And Lead ◽  
Algal Cultures

The study presents the possibility of using chlorophyta in the removal of cadmium and lead ions from industrial wastewater produced after the washing of equipment used in the manufacture of battery and batteries. The process was conducted with the use of two algal cultures: Raphidocelis subcapitata produced in laboratory conditions, and a mixed chlorophyta population collected from a natural, eutrophicated water reservoir with heavy metal ions present in the water and sludge. The study showed that the effectiveness of a pure algal culture is comparable to that of a mixed chlorophyta population, characterized by greater diversity of functional groups at binding sites and higher resistance to stress that may occur in the wastewater environment. The maximum effectiveness of ions sorption was 64% for cadmium (mixed algal population) and 60% for lead (Raphidocelis subcapitata).

scholarly journals Divalent Cu, Cd, and Pb Biosorption in Mixed Solvents

2009 ◽  
Vol 2009 ◽  
pp. 1-5 ◽  
Author(s):  
M. H. Al-Qunaibit
Keyword(s):  
Metal Binding ◽  
Binding Sites ◽  
Metal Ion ◽  
Mixed Solvents ◽  
Atomic Radius ◽  
Lead Ions ◽  
General Decrease ◽  
Ft Ir ◽  
Donor Numbers ◽  
Cadmium And Lead

Dead driedChlorella vulgariswas studied in terms of its performance in binding divalent copper, cadmium, and lead ions from their aqueous or 50% v/v methanol, ethanol, and acetone solutions. The percentage uptake of cadmium ions exhibited a general decrease with decrease in dielectric constant values, while that of copper and lead ions showed a general decrease with increase in donor numbers. Uptake percentage becomes less sensitive to solvent properties the larger the atomic radius of the biosorbed ion, and uptake of copper was the most affected. FT-IR analyses revealed stability of the biomass in mixed solvents and a shift in vibrations of amide(I) and (II), carboxylate, glucose ring, and metal oxygen upon metal binding in all media.ΔνCOOvalues (59–69 cm−1) confirmed bidentate metal coordination to carboxylate ligands. The value ofνasCOOincreased slightly upon Cu, Cd, and Pb biosorption from aqueous solutions indicating lowering of symmetry, while a general decrease was noticed in mixed solvents pointing to the opposite. M–O stretching frequencies increased unexpectedly with increase in atomic mass as a result of solvent effect on the nature of binding sites. Lowering polarity of the solvent permits variations in metal-alga bonds strengths; the smaller the metal ion, the more affected.

Double-shelled yolk-shell Si@C microspheres based electrochemical sensor for determination of cadmium and lead ions

2019 ◽  
Vol 1078 ◽  
pp. 32-41 ◽  
Author(s):  
Danfeng Qin ◽  
Anran Chen ◽  
Xamxikamar Mamat ◽  
Yongtao Li ◽  
Xun Hu ◽  
...  
Keyword(s):  
Electrochemical Sensor ◽  
Lead Ions ◽  
Cadmium And Lead

scholarly journals Potential Use of Bagasse Pith for the Treatment of Wastewater Containing Metals

1998 ◽  
Vol 16 (1) ◽  
pp. 33-38 ◽  
Author(s):  
H.M. Aly ◽  
A.A.M. Daifullah
Keyword(s):  
Theoretical Plate ◽  
Lead Ions ◽  
Lead Ion ◽  
Plate Height ◽  
Ion Removal ◽  
Batch Systems ◽  
Lead Ion Removal ◽  
Bagasse Pith ◽  
Cadmium And Lead ◽  
Potential Use

Bagasse pith was tested for its ability to remove cadmium and lead ions from aqueous solutions under two modes of operation, i.e. in batch systems and continuous flow systems. Time dependency experiments showed a very rapid adsorption of these cations by bagasse pith. Thus, 62% of cadmium ions and 84% of lead ions were taken up by the bagasse pith at pH 6 and ca. 99% of each cation was recovered by treatment of the pith with 0.1 M HCl. The breakthrough capacity, Q0.5, the number of theoretical plates and the theoretical plate height were calculated. The capacity of bagasse pith was found to be 6.2 and 8.5 mequiv./g for cadmium and lead ions, respectively. The feasibility of using bagasse pith for cadmium and lead ion removal from wastewater streams was addressed.

scholarly journals Attachment of 2,2-bipyridine onto a silica gel for application as a sequestering agent for copper, cadmium and lead ions from an aqueous medium

2011 ◽  
Vol 13 (4) ◽  
Author(s):  
Elton Souza ◽  
Valtair Cristante ◽  
Pedro Padilha ◽  
Sonia Jorge ◽  
Marco Martines ◽  
...  
Keyword(s):  
Aqueous Medium ◽  
Silica Gel ◽  
Lead Ions ◽  
Cadmium And Lead

scholarly journals Using Acid-Activated Azad Kashmir Clays to Remove Cadmium and Lead Ions from Wastewater

2020 ◽  
Vol 29 (5) ◽  
pp. 3041-3047
Author(s):  
Nadia Ayub ◽  
Abdul Ehsan ◽  
Muhammad Chaudhry
Keyword(s):  
Lead Ions ◽  
Azad Kashmir ◽  
Cadmium And Lead
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