RU78185U1 - SILT WATER FOR INSTALLING BIOLOGICAL SEWAGE TREATMENT - Google Patents

Abstract

The utility model relates to the structural elements of biological treatment plants for sewage of separate industrial and civil buildings. In a settling tank for a biological wastewater treatment plant containing a polymer shell in the form of a shell in the form of a truncated pyramid with open larger and smaller bases, the edges of two adjacent walls of the housing from the side of the larger base of the truncated pyramid protrude beyond the edges of two other adjacent walls, and the edges of the protruding edges are located at one level with respect to the smaller base of the pyramid, according to the proposal, the edges of two other adjacent walls of the body are at the same level with respect to the smaller base of the pyramid. Using the proposed utility model allows to simplify the installation, provides a reliable and tight connection of the sump to the body of the biological treatment plant by soldering and to increase the efficiency of the biological treatment plants of domestic sewage. 2 ill.

Description

The utility model relates to the structural elements of biological treatment plants for sewage of separate industrial and civil buildings.

In the prior art, a sump for treating wastewater from floating impurities, comprising a housing with inlet and outlet pipes, a collection tray with an overflow edge, as well as a flooded pipeline for the removal of contaminants. Near the collecting tray below its overflow edge there is an additional pipeline with holes for draining the liquid (see RU 1784585 A1, С02F 1/40, publ. 1992)

The disadvantage of this analogue is the complex design and low efficiency during operation.

Also known is a radial sump for separating a sludge mixture containing a central inlet pipe installed in a cavity of a cylindrical tank, a peripheral drainage tray and a separation wall forming a central sludge and peripheral chambers in a cylindrical tank, sludge removal pipes and a sludge pump (see RU 8350 U1, С02F 1/52, publ. 1998)

The disadvantage of this analogue is the complex design and bulkiness, as well as the difficulty in maintenance and low efficiency during operation.

Known sump containing inclined partitions on which the pipeline and the damper are fixed in the form of a pipe (see RU 2201405 C1, C02F 3/02, publ. 2003)

The disadvantage of this analogue is the irrational use of the volume of the activation chamber since inclined partitions overlap the liquid mirror in the activation part of this chamber. The placement of various pipelines in the cavity of the sump leads to a decrease

useful volume, as well as silt deposits on the surface of these pipelines, which also leads to a decrease in the useful volume of the sump and the need for periodic removal of these deposits. In addition, such a sump is inconvenient in the manufacture and installation, as well as during maintenance and repair.

The closest analogue of the claimed utility model is a sump containing a housing with inclined walls with a damper pipe and a process pipe fixed to them, characterized in that the housing is made in the form of a box-shaped shell in the shape of a rectangular truncated pyramid with open larger and smaller bases, while the sides of the larger base of the pyramid, the edges of two adjacent walls are located below the opposing adjacent walls, and the process pipe is fixed on the outside of the sump and (see. RU 54936 U1, C02F 3/06, publ. 2006).

The disadvantage of the closest analogue is the inability to ensure a tight connection and reliable fixation of the sump to the body of the biological treatment plant.

The task solved by the utility model is to increase work efficiency, ease of installation and maintenance.

The problem is solved in that in a sump for a biological wastewater treatment plant, comprising a shell in the form of a shell in the form of a truncated pyramid with open larger and smaller bases, the edges of two adjacent walls of the housing from the side of the larger base of the truncated pyramid protrude beyond the edges of two other adjacent walls, and the edges protruding edges are located at the same level relative to the smaller base of the pyramid, according to the proposal, the edges of the two other adjacent walls of the housing are at the same level relative to the smaller base of the pier amides.

The execution of each pair of adjacent walls of the tank of the sump from the side of its larger base is the same in height, i.e. on one

level, provides reliable fixation and tight connection of the sump to the body of the biological treatment plant, which is not possible if two smaller adjacent walls have different heights, i.e. located at different levels, as is the case in the sump, taken as the closest analogue.

The housing of the sump can be made of a polymeric material, for example, polyethylene or polypropylene, or vinyl plastic, or other similar materials. The walls of the sump and the casing of the unit are connected by soldering, which ensures reliable connection.

The utility model is illustrated by drawings, where:

Figure 1 shows a General view of the sump;

figure 2 - sump, top view.

The inclined walls 1, 2, 3 and 4 of the sump are made of polymer plates connected to a box-shaped shell in the form of a rectangular truncated pyramid with open large 6 and less than 5 bases. From the side of the larger base 6 of the pyramid, the edges of two adjacent walls 1 and 2 are located at the same level below the opposite adjacent walls 3 and 4, the edges of which are also located at the same level, and are hermetically and reliably connected to the body of the biological treatment unit by soldering.

In the working position of the sump, the larger base 6 is located on top. During operation, the sludge mixture enters the sump through the pipe damper, while through the open smaller base 5, the sump is hydraulically connected to the chamber - aeration tank (not shown). During sedimentation of sludge from the sludge mixture, the sludge leaves the sump through the lower base 5. The water purified from the sludge in the form of a clarified layer formed in the sump is pumped to the outlet of the installation.

Due to the fact that the edges of two adjacent walls are made below the edges of two opposite adjacent walls, when installing the sump in the aeration tank chamber, it fits compactly into the dimensions of this chamber,

located in the housing of the biological treatment plant 9, which has a complex configuration due to the presence of the neck 10, while minimizing the length of the connecting pipelines. The same height of each pair of adjacent walls allows for a tight connection and reliable fixation of the tank of the sump in the body of the biological treatment plant.

Using the proposed utility model allows to simplify the installation, provides a reliable and tight connection of the sump to the body of the biological treatment plant and to increase the efficiency of the biological treatment plants of domestic sewage.

Claims (3)

1. A settling tank for a biological wastewater treatment plant, comprising a shell in the form of a truncated pyramid with open larger and smaller bases, the edges of two adjacent walls of the housing from the side of the larger base of the truncated pyramid protrude beyond the edges of two other adjacent walls, and the edges of the protruding edges are at one level relative to the smaller base of the pyramid, characterized in that the edges of two other adjacent walls of the housing are at the same level relative to the smaller base of the pyramid. 2. The sump according to claim 1, characterized in that the housing is made of a polymeric material. 3. The sump according to claim 2, characterized in that the polymeric material is polyethylene, or polypropylene, or vinyl plastic.