SU1214597A1 - Device for purifying petroleum-containing sewage - Google Patents

Description

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The invention relates to a device for the treatment of wastewater containing petroleum products and suspended solids, and can be used in the refining, chemical and other industrial sectors.

The purpose of the invention is to increase the intensity and efficiency of wastewater treatment and simplify the operation of the device.

Fig „1 shows the device, general view; in fig. 2 the same plan.

The device contains a cylindrical housing 1, with a peripheral tray 2 and radial trays 3 for collecting purified water, devices for separating heavy impurities in the form of funnels 4 that are coaxially aligned with the body, a thin-layer conical module 5, made in the form of truncated conical shelves located coaxially above the thin-layer module cylindrical conical partition 6, which divides the device into chambers 7 and 8 of the collection of oil products and clarified water, respectively, located with The side of the cylindrical part of the cylindrical cone partition, the tray 9 for collecting oil products, the scraper 10 for removed 1 oil products, located in the upper part of the oil collection chamber, the coalescing filter 1 located between the radial trays 3 in the collection area of purified water, replaceable cassette filters 12 loaded with material, sorbing oil products (zipron, vazopron, etc.) pipelines 13-16 of sewage supply, drainage of purified water, oil products, sediment, respectively.

The use of a thin-layer module contributes to a more efficient removal of suspended substances and oil products from water. In addition, when water moves from the center of the device to the periphery between the shelves of the thin layer module 5, its speed decreases, which contributes to a more complete separation of contaminants.

The cylindrical partition 6, which separates the upper part of the device ka camera 7 and 8 of the collection of petroleum products to the clarified water, prevents re-contamination of the water catch-. oil products, provides a small free surface area

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liquid in the oil collection chamber, as a result of which oil products accumulate on the surface in a thick layer, which allows

remove them without trapping water and get a low-watered product that is easier to dispose of.

The use of cluster sorption filters 12 provides deep water purification from petroleum products. After the sorption capacity of the feed has been exhausted, the filters are easily removed and replaced. Filter loading is regenerated or replaced.

new. The supporting structure, to which the cassette filters are attached, are the radial trays 3 for collecting purified water.

Application of the scraper 10, curved

logarithmic spiral, voluntarily - it is effective to remove oil products in the annular tray 9.

The device works as follows.

Water contaminated with petroleum products and mechanical impurities, through a pipe for supplying contaminated water through control valves 7 enters the funnels 4 tangentially,

Distributed evenly over the height of the machine. In the funnels, due to centrifugal force, the separation of petroleum products and coarse suspension, which is concentrated at the internal

the walls of the craters, slides down them and accumulates in the lower part of the device, from where it is periodically removed through conduit 6.

Oil products are collected in the expanded part of the funnels and along the canal.

for their withdrawal they enter the collection chamber of petroleum products.

one

Purified water, go out of the funnels,

enters the thin-layer module 5. Oil products float below the bottom surface of the conical shelves of the thin-layer module, enter the channel for their removal and then into the collection chamber.

petroleum products.

The precipitate slides along the upper surface and through the channel for its removal enters the lower part of the device. The clarified water enters the chamber 8, is filtered through cassette filters 12, where it is additionally purified from oil products, collected

trays 3, enters tray 2 and is retracted from the device.

Oil products are collected in chamber 7, passing through the coalescing

filter 11, using a scraper

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trays 9 are driven and devices are removed.

If necessary, the pipe for the supply of contaminated water is injected

FIG.

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Claims (5)

1. DEVICE FOR CLEANING OIL-CONTAINING WASTE WATERS, comprising a cylindrical housing, mounted one above the other along the device axis, a funnel, sewage pipelines, purified water, oil products and sludge drainage channels, oil product and purified water collection trays and a scraper for removing oil products, the fact that, in order to increase the intensity and efficiency of wastewater treatment and simplify operation, the device is equipped with a thin-layer module installed in the housing concentrically funnels, and cylinders nical baffle mounted coaxially over the thin layer module and dividing the upper housing portion in the oil collection chamber and the clarified water, wherein the thin layer is formed as a module are arranged one above the other truncated conical flange. 2. The device according to π. 1, characterized in that the clarified water collection chamber is equipped with interchangeable cassette sorbing filters installed between the g trays for collecting clarified water. 3. The device according to π. 1, characterized in that the oil collection chamber is equipped with a coalescing filter. 4. The device according to π. 1, characterized in that the scraper for removing petroleum products is made in the form of a logarithmic spiral. 5. The device pop. 2, characterized in that sipron and vasopron are used as sorbent material in cartridge filters. SU,., 1214597 I