Ion exchange in a semifluidized bed

Journal Article · Sat Apr 01 04:00:00 EST 1995 · Industrial and Engineering Chemistry Research

DOI:https://doi.org/10.1021/ie00043a052· OSTI ID:63166

Hwang, S J; Lu, W J ^[1]

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1. National Tsing Hua Univ., Hsinchu (Taiwan, Province of China). Dept. of Chemical Engineering

Removal of copper ions from electroplating wastewater by ion exchange in a liquid-solid semifluidized bed is studied. The column diameter and height of the semifluidized bed is studied. The column diameter and height of the semifluidized bed are 8.1 and 150 cm, respectively. CUSO{sub 4} solution is used as the synthetic wastewater, and Amberlite 200 C resins are employed as the ion-exchange resins. It is found that the effluent Cu{sup 2+} concentration of the semifluidized bed increases as the liquid volumetric flow rate or feed concentration is increased. Moreover, the height of the fluidized bed section keeps decreasing during the ion-exchange process. A mathematical model is developed to describe the ion-exchange process in the semifluidized bed satisfactorily. A comparison of the performance of the semifluidized bed, the fluidized bed, and the packed bed based on the treatment efficiency is also made. It shows that the treatment efficiency is the highest for the semifluidized bed.

• Sponsoring Organization: USDOE
• OSTI ID: 63166
• Journal Information: Industrial and Engineering Chemistry Research, Journal Name: Industrial and Engineering Chemistry Research Journal Issue: 4 Vol. 34; ISSN IECRED; ISSN 0888-5885
• Country of Publication: United States
• Language: English

Related Subjects

32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
COMPARATIVE EVALUATIONS
COPPER
DESIGN
EXTRACTION COLUMNS
FLUIDIZED BEDS
ION EXCHANGE
ION EXCHANGE MATERIALS
MATHEMATICAL MODELS
METAL INDUSTRY
PACKED BEDS
WASTE WATER
WATER TREATMENT