RU107145U1 - INSTALLING CLEANING LIVING STRAIN FROM BRIDGE - Google Patents

Abstract

 A storm sewage treatment plant from a bridge, comprising a receiving storage tank including a grate at the storm water inlet, a sand collecting hopper having a pipe for discharging suspended particles, a unit for separating suspended particles and oil products, consisting of partitions that change the direction of water, a chamber for accumulating oil products, a purified water tank and a water seal, characterized in that it has a pontoon-type bioplate that provides after-treatment of storm runoff from the bridge from suspended solids and oil products to the bioplat during floods and floods without flooding bioplato.

Description

The invention relates to techniques for treating water from suspended particles and oil products and can be used to clean storm water from a bridge pavement.

A known storm sewage treatment plant comprising a receiving storage tank, treatment facilities including a housing, a sand collection hopper, a unit for separating suspended particles and oil products, made in the form of a thin-layer module from a pipe bundle, and a deep purification unit, part of which is filled with free-floating granules. The pipes of the thin-layer module and granules are made of a material having a high wettability coefficient of liquid particles of oil products. The installation also includes a chamber, which is connected by a pipeline to the accumulator of captured oil products, and a storage tank for purified water, equipped with a siphon overflow. The receiving storage tank at a point located above the possible maximum level of treated wastewater has an overflow pipe [RF Patent No. 2158233, С02F 1/40, 10.27.2000].

The disadvantages of the known installation, with a high degree of water purification, are high material consumption, the ability of the thin-layer module to clog, when the accumulator tank is full, the wastewater is discharged without treatment.

The closest in technical essence and the achieved result is the installation of cleaning storm water from the bridge, including a receiving storage tank, a grate at the inlet of storm water, a sand collection hopper, a unit for separating suspended particles and oil products, consisting of partitions that change the direction of water, a chamber for the accumulation of oil products, a purified water tank and a water trap through which partially treated effluents are sent for purification to a stairwell bioplate [Patent No. 2372293, С02F 1/00, С02F 9/00, 10.11.09].

The objective of the invention is to provide additional treatment of stormwater runoff from the bridge from suspended solids and oil products to the bioplate during floods and floods.

This goal is achieved by the fact that the installation of storm water treatment from the bridge, containing a receiving storage tank including a grate at the storm water inlet, a sand collection bin having a pipe for discharging suspended particles, a unit for separating suspended particles and oil products, consisting of partitions that change the direction of water , a chamber for the accumulation of petroleum products, a tank of purified water and a water seal, characterized in that it has a pontoon-type bioplate that provides additional treatment of storm runoff from the bridge from the weighted substances and petroleum products on the bioplate during floods and floods without flooding the bioplate.

The invention is illustrated by drawings.

Figure 1 presents a diagram of a receiving storage tank. Figure 2 presents the layout of the installation of storm water treatment from the pavement of the bridge.

The storm sewage treatment plant from the bridge comprises a receiving storage tank 1 with a housing 2, containing a grate 3 at the storm water inlet, a sand collecting hopper 4, a unit for separating suspended particles and oil products 5, consisting of partitions that change the direction of water, a chamber for accumulating oil products 6, a purified water tank 7 and a water trap 8, through which partially treated effluents are sent for purification to a pontoon type bioplate 9. A pipe for removing suspended particles 10 is connected to the sand collecting hopper 4. Chamber for the accumulation of petroleum products 6 and the storage tank 1 have nozzles for the removal of petroleum products, connected to one nozzle 11. The unit for separating suspended particles and petroleum products 5 contains a hatch 12 for removing particles settled there. When the volume of the accumulation tank 1 is filled, storm drains leave the unit through an overflow pipe 13 located in its upper part, on a bioplate of the pontoon type 9. Storm discharge through a tray 14 is fed to a receiving accumulator tank, the functioning of which is carried out in the range of levels 15 and 16. The storm water treatment installation is located above the maximum level of water rise in the water body 17.

The operation of the storm sewage treatment plant from the bridge is as follows:

The first rainwater wastewater in the amount to be treated according to SNiP 2.04.03-85, is discharged through the bridge tray 14 into a receiving storage tank 1, the volume of which ensures their reception. Subsequent storm sewage, which according to the above SNiP are conditionally clean, when the volume of the tank 1 is full, leave the installation through the overflow pipe 13 for treatment on a pontoon type 9 bioplate.

Larger particles of sand and other suspended (solid) substances are deposited in the lower conical part of the sand collecting bin 4, and most of the oil products float up to the accumulation tank 1, forming a floating film, from where they are removed through the pipe for the removal of oil products 11. Accumulated solid particles are removed periodically from the sand collecting hopper 4 through the well using a submersible mud pump or a cesspool machine using vacuum. Further, passing the block for separating suspended particles and oil products 5, consisting of partitions that change the direction of water, smaller suspended particles settle to the bottom of block 5, and part of the oil products floats into the chamber for accumulating oil products 6, from where they are removed through the pipe for the removal of oil products 11. Thus, already partially purified water will enter the tank of purified water 7 and, through a water trap 8, will go to a pontoon-type bioplate for additional purification of dissolved oil products. Precipitated particles from the block separation of suspended particles and oil 5 are removed through the hatch 12.

The operation of the installation stops when the water level in the storage tank 1 decreases to the lower working level 15. The operating level of the installation of storm water treatment from the bridge 16.

Storm discharge through the tray 14 enters the receiving storage tank 1, located above the maximum level of water rise 17, then through the tray the effluents enter the after-treatment on the bioplate of the pontoon type 9 (Fig. 2).

The proposed technical solution provides the tertiary treatment of storm runoff from the bridge from suspended solids and oil products on the bioplate during floods and floods without flooding the bioplate. After cleaning, storm drains can be discharged into fishery ponds.

Claims (1)

A storm sewage treatment plant from a bridge, comprising a receiving storage tank including a grate at the storm water inlet, a sand collecting hopper having a pipe for discharging suspended particles, a unit for separating suspended particles and oil products, consisting of partitions that change the direction of water, a chamber for accumulating oil products, a purified water tank and a water seal, characterized in that it has a pontoon-type bioplate that provides after-treatment of storm runoff from the bridge from suspended solids and oil products to the bioplat during floods and floods without flooding bioplato.