RU1813724C - Apparatus for water purification - Google Patents

Abstract

SUMMARY OF THE INVENTION: the housing of the device is divided by a cylindrical shell with a conical bottom into a central settling and peripheral filter chamber, the last of which has two layers of filter loading. A pipe for supplying oil and oil-containing wastewater is tangentially attached to the lower part of the settling chamber, and a pipe for supplying rainwater to its upper part. Disposable water distributors are installed above each layer, and in the lower part of the housing there is a discharge pipe for discharging the filtrate. 2 ill.

Description

FIELD OF THE INVENTION This invention relates to combined devices for treating rainwater and oil and oil containing wastewater in automobile enterprises and other industries.

The purpose of the invention is the expansion of functionality by further providing the purification of oil and oil containing wastewater.

Figure 1 shows a longitudinal section of a device; see 2, also, top view.

The device comprises a housing 1, separated by a cylindrical shell 2 with a conical bottom 3 on the settling chamber 4 and

filter chamber 5. In the latter, one above the other on the perforated partitions, the upper 6 and lower 7 layers of the filter load are placed, over each of which distributors are installed. 8 in the form of horizontal pipes with downward directed pipes.

The main supply pipe 9 is tangentially connected to the lower part of the settling chamber 4 for supplying oil and oil-containing wastewater, and to its upper part is an additional pipe 10 for supplying rainwater.

A rigid vertical guide 12 is mounted in the center of the housing 1.

On the guide 12, a drain funnel 13 is located with the possibility of movement, on the float 14. A flexible hose 14, which extends outward, is fixed to it.

In the lower part of the housing 1 there is a pipeline for discharging purified water 15

The device operates as follows.

The wastewater generated during the washing of vehicles enters through the supply pipe 9 to the settling chamber 4. Here, the water receives directed movement along the perimeter of the chamber. Thus, the gravitational separation of fractions is intensified due to the centrifugal force arising under these conditions.

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As a result, suspended solids of mineral origin rush to the walls of the settling chamber, along which they slide into the conical bottom 3. At the same time, oil products float, collect in the central part and are discharged through a drain funnel 13 and a flexible hose 14 into the oil and oil sump (not shown). The drain funnel 13 rises and falls vertically along a guide 12 along with the level of the waste water.

The clarified liquid then passes through a distributor 8 to the lower layer 7 of the filter charge, where residual contaminants are removed and sent through a drainage pipe for purified water 15 to a closed technological cycle for washing vehicles.

Precipitation collected from the site (rainfall), in the established order, enters through the additional supply pipe 10 into the settling chamber 4 where the gravitational separation of suspended solids takes place. In addition, the flow is subjected to natural aeration, as a result of which the liquid being purified is saturated with oxygen.

During the cleaning process, enlarged gas bubbles float to the surface, entraining particles of oil products that are collected in the area of the drain funnel 13 and are discharged through a flexible hose 14 into an oil-oil collector (not shown).

The clarified drain through the upper distributor enters the filter charge of the upper layer 6 to remove residual contaminants.

Further, the purified liquid is discharged similarly to that from the washing of vehicles through the purified water discharge pipe.

Claims (1)

The claims A device for water purification, comprising a housing, a cylindrical shell with a conical bottom mounted therein, dividing the housing into a central settling and peripheral filter chambers located in the last one above the other layers of granular loading, attached to the settling chamber, the main supply pipe and distribution means for supplying purified water to the top loading layer, characterized in that, in order to expand the functionality by ensuring the purification of oil and oil-containing wastewater, it is equipped with a distribution means for supplying purified water from the settling chamber to the lower loading layer, an additional supply pipe connected to the upper part of the settling chamber, and installed in the latter on float funnel for collecting oil and oils, while the main supply pipe is connected tangentially and distribution means are made in the form of horizontal pipes with downward branch pipes. FIG j s