Procion Blue MX-3G-attached microporous poly(2-hydroxyethyl methacrylate) membranes for copper, arsenic, cadmium, and mercury adsorption

Journal Article · Wed Sep 01 04:00:00 EDT 1999 · Separation Science and Technology

DOI:https://doi.org/10.1081/SS-100100778· OSTI ID:691486

Denizli, A; Say, R ^[1]; Testereci, H N; Arica, M Y ^[2]

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1. Hacettepe Univ., Ankara (Turkey)
2. Kirikkale Univ. (Turkey)

pHEMA membranes carrying 25.6 mmol Procion Blue MX-3G/m{sup 2} were used for removal of heavy metal ions (i.e., copper, arsenic, cadmium, and mercury) from aqueous media containing different amounts of these ions (0.1--4.5 mmol/L) and at different pH values (2.0--8.0). The maximum adsorption capacities of heavy metal ions onto Procion Blue MX-3G-attached membranes under noncompetitive conditions were 5.6 mmol/m{sup 2} for Cu(II), 19.6 mmol/m{sup 2} for As(III), 46.2 mmol/m{sup 2} for Cd(II), and 119.6 mmol/m{sup 2} for Hg(II). The competitive adsorption capacities of the heavy metal ions were 6.9 mmol/m{sup 2} for Cu(II), 21.2 mmol/m{sup 2} for As(III), 33.9 mmol/m{sup 2} for Cd(II), and 52.5 mmol/m{sup 2} for Hg(II). The same affinity order was observed under noncompetitive and competitive adsorption: Hg(II) > Cd(II) > As(III) > Cu(II). The adsorption of heavy metal ions increased with increasing pH and reached a plateau value at around pH 6.0. Adsorption of heavy metal ions from artificial wastewater was also studied. The adsorption capacities are 3.5 mmol/m{sup 2} for Cu(II), 10.2 mmol/m{sup 2} for As(III), 24.7 mmol/m{sup 2} for Cd(II), and 37.3 mmol/m{sup 2} for Hg(II). Desorption of heavy metal ions was performed using 0.1 M HNO{sub 3}. Procion Blue MX-3G-attached membranes are suitable for repeated use of more than 5 cycles without noticeable loss of capacity.

• OSTI ID: 691486
• Journal Information: Separation Science and Technology, Journal Name: Separation Science and Technology Journal Issue: 12 Vol. 34; ISSN 0149-6395; ISSN SSTEDS
• Country of Publication: United States
• Language: English

Related Subjects

32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
54 ENVIRONMENTAL SCIENCES
ADSORPTION
ARSENIC
CADMIUM
COPPER
DESORPTION
MEMBRANES
MERCURY
REMEDIAL ACTION
SORPTIVE PROPERTIES
SURFACE WATERS
WASTE WATER
WATER TREATMENT