Adsorption of lead ions on composite biopolymer adsorbent

Journal Article · Mon Apr 01 00:00:00 EST 1996 · Industrial and Engineering Chemistry Research

DOI:https://doi.org/10.1021/ie950417r· OSTI ID:238050

Seki, Hideshi; Suzuki, Akira ^[1]

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1. Hokkaido Univ., Hakodate (Japan)

A fundamental study about the application of biopolymers to the recovery of lead from dilute solution was carried out. A membranous composite biopolymer adsorbent containing two kind of biopolymers, alginic acid (AA) and humic acid (HA), was prepared. HA, which has high solubility in water, was almost completely immobilized in the adsorbent by a combination of calcium alginate gel and activated carbon powder. A general model for complexation between divalent metal ions and acidic sites on biopolymers was applied to explain the adsorption mechanism of lead on the adsorbent (HA-M). The results showed that the complexation constants and the complexation capacities of lead-AA and lead-HA systems were scarcely influenced by immobilization.

• OSTI ID: 238050
• Journal Information: Industrial and Engineering Chemistry Research, Vol. 35, Issue 4; Other Information: PBD: Apr 1996
• Country of Publication: United States
• Language: English

Related Subjects

32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
54 ENVIRONMENTAL SCIENCES
ORGANIC POLYMERS
SORPTIVE PROPERTIES
LEAD
ADSORPTION
ALGINIC ACID
HUMIC ACIDS
MATHEMATICAL MODELS
WASTE WATER
WATER TREATMENT