SU977399A1 - Apparatus for removing silt from industrial effluents - Google Patents

Description

This invention relates to the complex treatment of industrial wastewater.

The installation of forced removal of sludge is known, including vertical sumps with trays for drainage of clarified runoff and oil trap, sludge well with clapper, collection of sludge 1.

° However, one-sided periodic discharge of sludge does not ensure complete cleaning of the septic tanks. Gradual filling of the sedimentation tanks with sludge leads to the fact that the sludge does not have time to settle and enters the oil trap, as a result of which the sludge fills not only the septic tank, but also the oil trap. Therefore, there is a need for periodic cleaning of septic tanks and oil traps, which is associated with certain production difficulties, leading to the interruption of the process of cleaning industrial effluents. In addition, the clarified drain at the outlet of the oil trap does not correspond to the content of toxic metals before .-. The maximum allowable concentration (MPC) needs repeated dilution with clean water and is discharged into the municipal sewage system.

The purpose of the invention is to increase the efficiency of use of the plant by reducing the content of toxic metals in clarified industrial effluents and their use in the circulating water supply.

This goal is achieved by the fact that the installation (Containing the oil trap sumps, sludge well, technological pipelines, is equipped with a sealed tank with a vacuum pump connected to the lower part of the sumps, and also installed with HacocciMH submersible tanks connected to the oil traps.

The drawing shows an installation for removing sludge and industrial effluent,

20

. The installation contains a sump 1 with submersible pumps 2, a vacuum tank 3 and a vacuum pump 4.

The plant for the forced removal of sludge and industrial effluent works as follows.

From the sump 1 vacuum pumps 4 through a vacuum tank 3 sludge is pumped to a sludge bed (not shown). Submersible pumps

thirty . 2 clarified industrial effluent

supplied to the oil trap (not shown) the clarified industrial effluent is supplied for use in the recycled water supply of the enterprise. The proposed installation improves the efficiency of the wastewater treatment process due to the complete and timely cleaning of the sludge sump, and also uses the clarified liquid in the recycled water supply of the enterprise;

Formula of Invention

Installation for the removal of sludge and industrial effluents, containing sumps, oil traps, sludge well, process piping.

characterized by the fact that, in order to increase the efficiency of use by reducing the content of toxic metals in clarified industrial effluents and using them in the circulating water supply of the enterprise, it is equipped with a hermetic tank connected to the bottom of the settling tanks, as well as submersible pumps, installed in septic tanks and communicated with oil traps.

Sources of information taken into account in the examination

1. Schematic diagram of the treatment of chemically contaminated wastewaters. TI, new project 902-2 20. Barnaul branch, Giprotraktorelselhozma1p, 1974, page B-63639.

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Claims (1)

Claim Installation for the removal of sludge and industrial effluents, containing sumps, oil traps, a sludge well, technological pipelines, characterized in that, in order to increase the efficiency of γ use ^ and by reducing the content of toxic metals in clarified industrial effluents and their use in the enterprise’s recycling water supply, equipped with a sealed tank connected to the lower part of the settling tanks with a vacuum pump, as well as 10 submersible pumps installed in the settling tanks and in communication with the oil traps.