SU1054306A1 - Apparatus for purifying petroleum-bearing effluents - Google Patents

Abstract

CLEANING OIL-CONTAINING CTO4HI.JX WATER, including a housing, a tangential input compartment, a flotation chamber with a device for supplying air and a branch pipe for discharging purified water, in order to improve the efficiency of the device and the degree of water purification due to additional water treatment, the flotation chamber is equipped with a cylindrical partition and perpendicular electrodes having dielectric spacers, the nozzle for discharging purified water is placed vertically: the housing axis, and the fixture l supplying air - between the electrodes and the cylindrical partition, the compartment input cell direct women with a lower portion flotation chamber. w: l 4 C O SP)

Description

The invention relates to devices for the purification of oily wastewater and, in particular, can be used to purify washed wastewater from impurities of oil and oil in the automotive industry and other ⁵ industries.

A device for wastewater treatment is known, including a housing, a tangential compartment for introducing pure water and: a flotation chamber equipped with a device for introducing air and removing foam [1].

Г However, the known device does not provide effective wastewater treatment from finely dispersed impurities of oils and oil products.

The aim of the invention is to increase the efficiency of the device and / the degree of purification of water due to the additional processing of water.

This goal is achieved by the fact that in the known device, the flotation chamber “is equipped with a cylindrical baffle and” mutually perpendicular electrodes having dielectric gaskets, the outlet pipe of the purified water is placed along the vertical axis of the housing, and the device for supplying air between the electrodes with the lower part flotation chambers

The drawing shows the proposed device, a longitudinal section.

A device for the treatment of oily wastewater contains housing □ unit 1 ,. a peripherally located vertical tangential entry compartment 2, radially mated to the bottom of the flotation chamber 3, inside of which are mutually perpendicular electrodes 4 with dielectric spacers to create an inhomogeneous electric field, for example, a wire-to-plane system. A cylindrical baffle with a lower hole separates the flotation chamber 3, equipped with a pipe 6 for the discharge of purified water. Between the cylindrical partition 5 and the electrodes 4 is a device for supplying air, consisting of 50 of a collector 7, an internal perforated insert 8 and a pipe 9 for introducing dispersible air.

A device for the purification of oily wastewater works in an essential manner.

Oil-containing water through the inlet pipe located on the housing 1, enters the peripherally located vertical tangential zn inlet compartment 2 and, passing along the conjugated radius R, is partially separated into water and oil products under the influence of gravitational and centrifugal forces, and then enters the flotation chamber. Further separation of petroleum products from the treated water occurs under the influence of gravitational and ponderomotive forces.

Ponderomotive forces arise under the influence of an inhomogeneous electric field created by mutually perpendicular electrodes 4 of the drive system against the plane.The presence of dielectric spacers on the electrodes allows you to create an electric field of high tension and ensure electrical safety of the proposed device.

For a more complete separation of petroleum products, the treated water, passing into the lower hole of the cylindrical partition 5, experiences the flotation effect created by means of an air supply device consisting of a collector 7, an internal perforated insert 8 and a dispersed air inlet 9 ·. From the bottom opening of the cylindrical partition 5, purified water is discharged through a pipe 6 of the outlet for purified water. Petroleum products released from the treated water during the action of centrifugal, gravitational, pondemotor and flotation forces are sent for disposal.

I

Thus, the proposed device for the purification of oily wastewater has several advantages that provide high efficiency and the degree of purification of water from oil products, - the peripheral location of the vertical tangential input compartment creates optimal conditions for the separation of oil from treated water; the presence of a cylindrical partition with an opening for the withdrawal of purified water, located in its lower part, prevents the ingress of separated oil products into clarified water; the location of the unit of the device for supplying air between the electrodes and the cylindrical partition with the lower hole allows optimal use of the flotation effect in the process of complete cleaning and intensifies the process of removal of separated oil products.

ВНИИПИ Order 9023/28 Circulation 941 Subscription

Branch of PPP Patent, Uzhgorod, Project 4,

Claims (1)

DEVICE FOR CLEANING OIL-CONTAINING WASTE WATERS, including a housing, a tangential inlet compartment, a flotation chamber with a device for supplying air and a branch pipe for cleaning purified water, characterized in that, in order to increase the efficiency of the device and the degree of water purification due to additional water treatment, the chamber the flotation unit is equipped with a cylindrical baffle and mutually perpendicular electrodes having dielectric gaskets, a pipe for discharging purified water is placed along the vertical axis of the housing, and e for air supply - between the electrodes and the cylindrical partition, and the input compartment is mated to the bottom of the flotation chamber. >