A novel cellulose-dioctyl phthate-baker's yeast biosorbent for removal of Co(II), Cu(II), Cd(II), Hg(II) and Pb(II).

A novel cellulose-dioctyl phthate-baker's yeast biosorbent for removal of Co(II), Cu(II), Cd(II), Hg(II) and Pb(II).

Journal of environmental science and health. Part A, Toxic/hazardous substances & environmental engineering (2015-06-30)

Mohamed E Mahmoud, Amr A Yakout, Marwa T Abed El Aziz, Maher M Osman, Tarek M Abdel-Fattah

PMID26121022

ABSTRACT

In this work, dioctyl phthalate (Dop) was used as a highly plasticizing material to coat and link the surface of basic cellulose (Cel) with baker's yeast for the formation of a novel modified cellulose biosorbent (Cel-Dop-Yst). Characterization was accomplished by Fourier Transform Infrared Spectroscopy (FT-IR), Thermogravimetric analysis (TGA) and Scanning Electron Microscope (SEM) measurements. The feasibility of using Cel-Dop-Yst biosorbent as an efficient material for removal of Co(II), Cu(II), Cd(II), Hg(II) and Pb(II) ions was explored using the batch equilibrium technique along with various experimental controlling parameters. The optimum pH values for removal of these metal ions were characterized in the range of 5.0-7.0. Cel-Dop-Yst was identified as a highly selective biosorbent for removal of the selected divalent metal ions. The Cel-Dop-Yst biosorbent was successfully implemented in treatment and removal of these divalent metal ions from industrial wastewater, sea water and drinking water samples using a multistage microcolumn technique.

MATERIALS

Product Number

Brand

Product Description

60128

Sigma-Aldrich

Potassium chloride, BioUltra, for molecular biology, ≥99.5% (AT)

60089

Sigma-Aldrich

Potassium bromide, BioUltra, ≥99.5% (AT)

71729

Sigma-Aldrich

Sodium dodecyl sulfate, ≥98.0% (GC)

75746

Sigma-Aldrich

Sodium dodecyl sulfate, ≥99.0% (GC), dust-free pellets

204099

Sigma-Aldrich

Potassium chloride, ≥99.99% trace metals basis

451029

Sigma-Aldrich

Potassium chloride, AnhydroBeads^™, −10 mesh, 99.99% trace metals basis

451010

Sigma-Aldrich

Potassium bromide, anhydrous, powder, 99.95% trace metals basis

449989

Sigma-Aldrich

Potassium chloride, AnhydroBeads^™, −10 mesh, 99.999% trace metals basis

409316

Sigma-Aldrich

Potassium chloride, 99.999% trace metals basis

D201154

Sigma-Aldrich

Dioctyl phthalate, ≥99.5%

436143

Sigma-Aldrich

Sodium dodecyl sulfate, ACS reagent, ≥99.0%

71717

Sigma-Aldrich

Sodium dodecyl sulfate, tested according to NF, mixture of sodium alkyl sulfates consisting mainly of sodium dodecyl sulfate

P9327

Sigma-Aldrich

Potassium chloride solution, 0.075 M, sterile-filtered, BioXtra, suitable for cell culture

60142

Sigma-Aldrich

Potassium chloride solution, BioUltra, for molecular biology, ~1 M in H₂O

P9541

Sigma-Aldrich

Potassium chloride, for molecular biology, ≥99.0%

P5405

Sigma-Aldrich

Potassium chloride, powder, BioReagent, suitable for cell culture, suitable for insect cell culture, ≥99.0%

P9333

Sigma-Aldrich

Potassium chloride, BioXtra, ≥99.0%

449962

Sigma-Aldrich

Potassium bromide, anhydrous, powder, 99.999% trace metals basis

RDD040

Sigma-Aldrich

Sodium dodecyl sulfate, BioReagent, suitable for electrophoresis, for molecular biology, ≥98.5% (GC), free-flowing, Redi-Dri^™

L6026

Sigma-Aldrich

Sodium dodecyl sulfate, BioXtra, ≥99.0% (GC)

L5750

Sigma-Aldrich

Sodium dodecyl sulfate, 92.5-100.5% based on total alkyl sulfate content basis

L3771

Sigma-Aldrich

Sodium dodecyl sulfate, BioReagent, suitable for electrophoresis, for molecular biology, ≥98.5% (GC)

L4509

Sigma-Aldrich

Sodium dodecyl sulfate, ReagentPlus^®, ≥98.5% (GC)

P0838

Sigma-Aldrich

Potassium bromide, BioXtra, ≥99.0%

74255

Supelco

Sodium dodecyl sulfate, dust-free pellets, suitable for electrophoresis, for molecular biology, ≥99.0% (GC)

62862

Sigma-Aldrich

Sodium dodecyl sulfate, ≥90% ((Assay))

71725

Sigma-Aldrich

Sodium dodecyl sulfate, BioUltra, for molecular biology, ≥99.0% (GC)