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Workpiece treating barrel
We claim: 1. An abrasive blast-resistant barrel for use in blast treatment of workpieces such as metal castings and the like; said blast-resistant barrel being ...
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Disposal method and use of sewage sludge
We claim: 1. A water-solids mixture hardenable under atmospheric conditions the dry solids of which comprise (based on weight % of dry solids): 1-15% lime 1-50% digested ...
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Separation of suspended solids from phosphate tailings
OF THE INVENTION The process of the present invention is begun by introducing a settling aid or flocculating agent to the slimes of phosphate tailings which contain ...
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Disposal of fine tailings
I claim: 1. A method of disposal of slurries of fine tailings material comprising laying a porous drainage level on a subsurface between a leading edge and a trailing ...
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Box culvert without rib stiffeners
OF THE INVENTION The instant invention comprises a unique, unreinforced structure for box culverts with curved corners having a width (span) which greatly exceeds the ...
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Apparatus and method for applying a foam layer to cover and seal dumped waste
Having described certain forms of the invention in some detail, what is claimed is: 1. Apparatus for the spraying of hardenable plastic foam for the covering and sealing ...
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Process and apparatus for classifying, segregating and isolating radioactive wastes
It is an object of present invention to provide a process of classifying, segregating and isolating radioactive wastes, and particularly mixed, low-level radioactive ...
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Tether system for an offshore based work platform
One object of the invention is to provide a tether system which simplifies the handling of both ends of each tendon, and thus reduces the above described drawbacks. For ...
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Leach-resistant solid bodies from fly ash and heavy metal sludge
OF THE INVENTION The present invention is a method for treating heavy metal sludges using fly ash. It has been found that the fly ash produced in the combustion of sub-...
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Apparatus for laying paving fabric
The present invention contemplates a novel apparatus for laying paving fabric which has been particularly designed and constructed for overcoming the foregoing ...
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