| 摘要 |
PCT No. PCT/HU81/00010 Sec. 371 Date Nov. 2, 1981 Sec. 102(e) Date Nov. 2, 1981 PCT Filed Mar. 11, 1981 PCT Pub. No. WO81/02618 PCT Pub. Date Sep. 17, 1981.A process and apparatus for recovering the heat content of oil-contaminated waste water wherein the waste water is collected and is conducted through a plurality of waste water carrying ducts with shut-off valves, from an oil manipulating system into a single duct with a shut-off valve; a duct with two branches attached to and leading from said shut-off valve; each branch of said branched duct having therein a magnet valve which operates contrarily to the magnet valve in the other branch; each of said magnet valves connected by means of a cable to an instrument which senses the oil content of the waste water, wherein if the instrument does not sense oil, one magnet valve is open and the other is closed, and if the instrument senses oil, the other magnet valve is open and the one magnet valve is closed; a pressurized sample collector connected via a duct to the one magnet valve intermediate said valve and said sensing instrument; said pressurized collector having therein a sampling place on a float connected by a duct to a sampling vessel which is intermediate said pressurized collector and said sensing instrument; a duct for carrying the waste water from the collector is connected to a shut-off means and a pump which is connected to and controlled by a sensing instrument, transporting the uncontaminated waste water through a check valve for further utilization; and carrying the contaminated waste water through a duct leading from the other magnet valve to an external repository. |
