Hazardous or toxic waste destruction or containment – Containment – Solidification – vitrification – or cementation
Reexamination Certificate
1996-08-15
2001-12-04
Suchfield, George (Department: 3672)
Hazardous or toxic waste destruction or containment
Containment
Solidification, vitrification, or cementation
C037S195000, C210S241000, C405S128350, C588S259000, C588S900000
Reexamination Certificate
active
06325753
ABSTRACT:
The present invention relates to the treatment of sediment. More particularly, the present invention relates to a method and apparatus for stabilizing undesirable material during the course of sediment removal.
BACKGROUND OF THE INVENTION
It is known in the art to remove sediment and other material from mines and other areas. The methods and/or apparatuses used to accomplish those tasks are usually permanent installations designed to recirculate water, or to purify it for direct removal to the environment as in pumping the treated water to a stream located near the installation or the like.
These permanent types of installations are, of course unwieldy and not easily transportable from site to site, if desired. Moreover, the need to purify the sludge or other material so that it can be recirculated or removed directly from the environment has led to rather complicated installations which may be not be necessary if simple neutralization undesired materials, such as heavy metals, is desired.
SUMMARY OF THE INVENTION
The present invention provides a method and apparatus for the treatment of unwanted material in an environmentally sound and effective manner. Embodiments of the present invention include treatment of the undesired material by solid chemical means, which ensures the stabilization of various undesired material, especially heavy metals, and particularly lead. Embodiments of the present invention are especially useful in the removal and disposal of sediment which may occur in a sewer or underground electrical or telephone system. Moreover, the portability of the present invention means that it can be transported from area to area in which removal is desired.
The treatment occurs through mixing of the sludge and solid chemical means so that a homogenous treated mixture is obtained. This homogeneity means that through use of the method and/or apparatus of the present invention, treatment of the undesired material has been thorough enough to ensure consistent sampling results of the mixture, reflecting effective stabilization of the undesirable materials.
REFERENCES:
patent: 567312 (1896-09-01), Goodale et al.
patent: 673868 (1901-05-01), Henderson
patent: 948785 (1910-02-01), Lajoie
patent: 1698537 (1929-01-01), Cushwa
patent: 3893656 (1975-07-01), Opacic et al.
patent: 4113504 (1978-09-01), Chen et al.
patent: 4160734 (1979-07-01), Taylor et al.
patent: 4338191 (1982-07-01), Jordan
patent: 4501446 (1985-02-01), Glaser et al.
patent: 4543183 (1985-09-01), Petretti
patent: 4600514 (1986-07-01), Conner
patent: 4855064 (1989-08-01), Schlein
patent: 5156823 (1992-10-01), Hori et al.
patent: 5238582 (1993-08-01), Hori et al.
patent: 5295317 (1994-03-01), Perrott
patent: 5312551 (1994-05-01), Perron et al.
patent: 5350511 (1994-09-01), Sakurada
patent: 5419839 (1995-05-01), Haley et al.
patent: 5425188 (1995-06-01), Rinker
patent: 5453203 (1995-09-01), Higuchi
patent: 5512702 (1996-04-01), Ryan et al.
patent: 5938936 (1999-08-01), Hodges et al.
Citron Howard M.
Colarusso Richard C.
Kalab Brian
Rodriguez Jose E.
Vetter Larry A.
Bell Atlantic Network Services
Robin Blecker & Daley
Suchfield George
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