Magnetic filtration system for minimizing radioactive waste duri

Details Magnetic filtration system for minimizing radioactive waste duri Magnetic filtration system for minimizing radioactive waste duri

1999-03-10

2000-12-05

Savage, Matthew O.

Liquid purification or separation

Structural installation

Separator ancillary to storage tank

210222, 210428, 451 88, B01D 3506

Patent

active

061561940

ABSTRACT:
A magnetic filtration system for separating radioactive cut material from a fluid stream containing a mixture of the radioactive cut material and an abrasive cutting material. The system comprises a magnetic filter in fluid communication with the fluid stream. By selecting an abrasive cutting material having a different magnetic susceptibility than the radioactive material being cut, the abrasive cutting material can be separated from the radioactive cut material with the magnetic filter. The amount of high level radioactive material is thereby reduced for handling and disposal. The magnetic filter is part of a closed-loop system that extracts a fluid stream containing a mixture of abrasive cutting material and radioactive cut material from an enclosure in which an abrasive waterjet cutting tool is operated. Other filters are provided in the system for removing the radioactive cut particulate from the fluid stream in multiple stages according to a size of the particulate. After filtering, the fluid from the fluid stream is returned to the isolated portion of the fluid volume to form a closed-loop system. The magnetic filter can also be used to capture both the abrasive and radioactive cut material where differentiation based on magnetic susceptibilities is not possible or practical.

REFERENCES:
patent: 5001870 (1991-03-01), Yokota et al.
patent: 5637029 (1997-06-01), Lehane

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