SU916433A1 - Apparatus for purifying effluents - Google Patents

Description

The invention relates to a combination of facilities for the treatment of wastewater containing organic pollution, using processes of biological oxidation and sedimentation.

Known construction for purification stoch- ⁵ GOVERNMENTAL water, including a reservoir of biological aerated ponds with artificial aeration systems, water supply, water drainage, and sludge settling to the device and process piping [1].

A disadvantage of the known device is the need for significant storage capacity of the sediment and the impossibility of regular cleaning of the latter, which makes the cleaning process uncontrolled and not sufficiently effective.

The purpose of the invention - use efficiency by more than ₂₀ full Nogo remove suspended substances from the cleaned waste water.

This goal is achieved by the fact that the structure containing the reservoir pond,

2

systems of artificial aeration, water supply, drainage of water and sludge, a device for settling and process pipelines, equipped with a silt compactor (or an accumulator) connected by a pipeline to a pond, and a device for settling made in the form of compartments in a pond tank equipped with dams, longitudinally located in tank and adjacent to one of the walls, as well as mixers installed along the longitudinal axis of the compartments.

The drawing shows the proposed construction.

The device includes a reservoir of biological pond 1, pipe 2 water supply, aerators 3, a device for settling, divided by dams 4 into compartments 5-7, mixers 8, weirs 9, pipeline 10 and valve 11 for draining purified water, pipe 12 and valve 13 for removal of agitated sediment, silt compactors or silos 14, pipe 3 616433 4

• to - conduit 15 for clarified water and conduit 16 for compacted sludge.

The construction works as follows.

The waste water to be cleaned, 5 given through pipeline 2 to biological pond 1, is aerated with aerators 3, which saturate the waste water with oxygen and impede the deposition of suspended solids, and after oxidizing it, organic contamination enters compartments 5-7. in which suspended solids fall to the bottom, and the purified water is discharged through the weir 9, pipe 10 with the valve 11., 5

As the sediment accumulates in one of the settling compartments, for example in compartment 7, the removal of purified water stops, i.e. shut off valve 11. Then, using agitators 8 in compartment 7, sediment with water is opened, valve 13 is opened and the resulting mixture (stirred up sediment) is sent to the sludge compactor 14. From the sludge compactor, the clarified water is fed back to the biological pond via pipeline 15. The compacted sludge from the sludge compactor is sent for disposal or disposal, and the sludge is not removed from the sludge collector, but remains in it. After removing the agitated sediment, squeeze the agitators and close the valve 13. After a few hours needed to clear the water in compartment 7, the valve 11 is reopened in line 10 to drain the purified water. ₃₅ Alternately, similar to that given for

compartment 7, the sediment is removed from all other sections. The operation to remove the sediment is repeated as the sediment accumulates. 40

Mixers can be installed both permanently on supports, or afloat (on pontoons).

In the drawing, the compartments for settling are placed at the end of the pond - aerator, however, in the presence of a significant amount of suspended solids, it is advisable to place the latter not only at the end, but also at the beginning, as well as at the end, and at the beginning of the pond.

The proposed construction provides the most complete treatment of both industrial and domestic wastewater, reducing capital and operating costs, while the expected annual economic effect from the maximum amount of use is 1 million rubles. in year.

Claims (1)

Claim A wastewater treatment plant containing a biological pond tank with artificial aeration systems, water supply, water and sludge drainage, a device for settling and process piping, distinguished by the fact that, in order to increase efficiency by using more complete removal of suspended solids, it is equipped with a piping connected to the pond reservoir with an eel compactor, and the device for settling is made in the form of compartments in the pond reservoir, equipped with dams, longitudinally located in the reservoir, etc. connectors to one of the walls, as well as agitators mounted along the longitudinal axis of the compartments.