SU540960A1 - Device for drainage of industrial areas - Google Patents

Description

The invention relates to the field of drainage of industrial sites and territories. It is known a device used for the industrial areas of Finland, including a drainage pipeline and manholes. However, in such a device, oil products are not separated from drainage water. Therefore, in front of Soros, in the open water bodies, the entire volume of drainage water must be subjected to mechanical and biological treatment. The aim of the invention is to separate wastewater that is contaminated with oil products, to significantly reduce the amount of drainage water to be treated, and to ensure stable dewatering at industrial sites. This is achieved by laying over the main drainage pipeline of an additional drainage pipeline, which makes it possible to divert the main volume of drainage water with the lower pipeline without contamination with oil products, and remove almost pure oil products with the upper additional pipeline. FIG. 1 shows a cross section of the drainage; in fig. 2-longitudinal section of the axis d 1nazha. An additional drainage pipe 1, which represents a soyoural pipe with holes, is placed in a trench above the main drain pipe 2 and is surrounded by a filtering drain 3. ALYa separation of the main and additional pipelines is provided for filling a layer of low-filtering soil. 1 the installation base of the additional main pipeline 1 is determined by the calculated rate of drainage on the territory of the industrial site. The depth of the main draining pipeline 2 is determined by the size of the filtering dusting 3 and the thickness of layer 4. Layer 4 is filled to increase the control range of the high-altitude water depression lines 5 liters of petroleum 6, as well as to protect the main drainage oil from iB additional drain pipe 1. The positions 7 and 8 respectively indicate the initial levels of the ground stream and oil products located on its surface, prior to the inclusion of drainage in operation, and reference numeral 9 - iolozhenne best water level nr operation. A longitudinal section of the drainage section between the inspection wells 10, equipped with control devices 11,

performed usually in the form of chondar walls and | pr.

The regulating device 11 creates a backwater when the drainage water of the main pipeline 2 leaves the well 10, o: without it, thereby in the main pipeline.

The height of the walls of the regulating devices 11 is called in such a way as to ensure (depending on the geometric and hydraulic characteristics of the drainage) arority along the entire length of the main drainage pipeline 2 between the wells 10 with the depression of the funnel depressed below layer 4. The throughput capacity of the pipeline 2 and the position of levels Waters 12 in wells 10 are defined by the well-known hydraulics formulas for the movement of water in pressure pipes.

When regulating the level of depression under the drainage & ampoule 11, most of it: water is drained from the drained area by the main pipeline without being contaminated with oil products and need to be cleaned before discharge into open water bodies.

Oil products 6, rolling down 1c but on the surface of water 5 and mixing with a small amount of water, are drained off by an additional drain pipe 1.

By sufficiently precise regulation of the water level, one can achieve this position 9,

in which water practically will not get into the additional drainage pipeline 1, while oil products accumulating in the depression funnel will be drained by them into special storage tanks.

In this case, it is possible to completely refuse from the purification environment, which naturally gives a significant economic effect.

In the event of an exit from the STRO (clogging of the additional drainage pipeline, the latter can be replaced without deteriorating the hydrogeological situation, since the water decrease at the industrial site is provided by the main drainage pipeline having a significantly longer service life of three pai6o in pure water.

Claims (1)

Invention Formula A device for drainage of industrial areas, mainly polluted with oil products, including a drainage pipeline and manholes, such as, with the Separation of discharged oil-contaminated drainage wells, an additional drainage pipeline was laid above the main drainage pipeline. // -x Vuz.