High gradient magnetic particle separation in viscous flows by 3D BEM

Treatment of printing and dyeing wastewater by the device of high gradient magnetic separation (HGMS) developed by author was tested. The results showed that printing and dyeing wastewater contained varied chemical composition and whose initial concentration of chromaticity and COD were 800 and 565mg/L respectively can be well cleaned by Fenton oxidation—magnetic seed coagulation—HGMS. The removal rate of chromaticity and COD was up to 92.6% and 79.5% respectively. The effluent can meet the national drainage criterion. The optimum technological parameters are as follows: pH=6, [FeSO4·7H2O]=250mg/L, [H2O2]=1.3ml/L, [PAM]=0.75 mg/L, dose of magnetic particle W=150mg/L,current intensity I=8A, current velocity U=2.420L/min, packing density of stainless steel wire R=1.00%-1.43%. Recovery rate of magnetic particle was up to 90% by regenerated technique of chemistry in combination with physics.

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Study on Optimizing High-Gradient Magnetic Separation—Part 1: Improvement of Magnetic Particle Retention Based on CFD Simulations

World Journal of Condensed Matter Physics ◽

10.4236/wjcmp.2016.62016 ◽

2016 ◽

Vol 06 (02) ◽

pp. 123-136 ◽

Cited By ~ 2

Author(s):

Yonas S. Shaikh ◽

Christian Seibert ◽

Percy Kampeis

Keyword(s):

Magnetic Separation ◽

Magnetic Particle ◽

Cfd Simulations ◽

High Gradient Magnetic Separation ◽

High Gradient ◽

Particle Retention

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Magnetic Particle Separation by an Optimized Coil : A Graphical User Interface

Journal of Magnetics ◽

10.4283/jmag.2017.22.2.214 ◽

2017 ◽

Vol 22 (2) ◽

pp. 214-219 ◽

Cited By ~ 3

Author(s):

Kasra Rouhi ◽

Amirhossein Hajiaghajani ◽

Ali Abdolali

Keyword(s):

User Interface ◽

Graphical User Interface ◽

Magnetic Particle ◽

Particle Separation

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A laboratory and clinical evaluation of an immunochemiluminometric assay of thyrotropin in serum.

Clinical Chemistry ◽

10.1093/clinchem/34.10.2087 ◽

1988 ◽

Vol 34 (10) ◽

pp. 2087-2090 ◽

Cited By ~ 7

Author(s):

D J Berry ◽

P M Clark ◽

C P Price

Keyword(s):

Magnetic Particles ◽

Magnetic Particle ◽

External Quality Assessment ◽

Limit Of Detection ◽

Particle Separation ◽

Reference Interval ◽

External Quality ◽

Analytical Recovery ◽

Luminescence Assay ◽

Assay Time

Abstract We evaluated an immunochemiluminometric assay for human thyrotropin. A chemiluminescent acridinium ester is used as a label, with magnetic-particle separation. The lower limit of detection of the assay (mean + 3 SD of the zero standard) was 0.07 milli-int. unit/L, with a working range of 0.5 to greater than 60.0 milli-int. units/L. Assay accuracy was good as judged from analytical recovery, analysis of external quality-assessment samples, and comparison with an enzyme-amplified immunoassay. There were no significant interferences or cross-reactivities. Twenty-four samples assayed showed aggregation of the magnetic particles. On re-assay, four of these samples showed a significant increase in the measured TSH by the luminescence assay. Assay time for 60 tubes was approximately 3.5 h with the use of a semi-automated luminometer. The reference interval, determined from data on 144 healthy euthyroid subjects, was 0.3-4.0 milli-int. units/L. Sixteen of 19 thyrotoxic patients showed clearly suppressed concentrations of thyrotropin in serum.

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