C - Chemistry – Metallurgy – 02 – F
Patent
C - Chemistry, Metallurgy
02
F
C02F 1/46 (2006.01)
Patent
CA 2164348
A method and apparatus for the treatment of industrial and municipal waste waters is disclosed which utilizes electro-conductive properties in conjunction with the introduction of an electric current to render harmless and/or manageable in a very cost-effective manner the undesirable contaminants in industrial, including nuclear, and municipal waste fluids. The above flow will be passed through a hollow truncated-conic refractory electro-conductive movable-along-the-flow electrode connected with a ground and at a distance there is situated an identical electrode but connected via several electrical apparatuses with a terminal of an alternating high-voltage energy source. When the electrodes are moved along the flow, i.e. closer together or further apart, they change the electric density in it and thus the intensity of direct-cycle steam from a flow. In the presence of an electric arc (maximum current) in a flow, there is total disintegration of a flow. In this case under the influence of an arc's high temperature and ambient air, simultaneously in the flow the fuel-organic content is burnt out, the mineral content is crystallized, the water content is turned into steam, the hazardous and toxic contaminates are thermal degraded, pathogens and microorganisms are sterilized and there is a precipitation of crystalline residue. Together the whole of this, except the residue, form a vapour-flow of smoke, mist, minute crystals, metal ions, steam, water droplets, etc. This flow being sucked up is introduced into a cyclone where the separated smoke is directed to a stack and the remaining flow passing into the cyclone's lower part through a wire mesh packed layer and a porous membrane where the flow is subjected to the separation of its constituents, i.e. the contaminants are direct back to a sewage system and the water steam will be cooled further on, ready for use. When this method for treatment is adopted in plants for disposal of waste water produced from a nuclear power station and any other industrial plant or a municipal sewage treatment plant, for instance, an evaporator is simplified, various tanks and incinerator are dispensed with and thus the plants for the disposals can be simplified to a large extent.
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