SU1452796A1 - Installation for purifying waste water - Google Patents

Abstract

The invention relates to the purification of water and allows an increase in the degree of purification and compactness of the installation. The installation consists of a housing 1 in which a container with a removable pre-cleaning chamber 3 installed above the settling chamber 5 is located, and a chamber 13 for collecting the filtrate. The tank 4 and the settling chamber 5 are connected by a drainage pipe 6 having a filter with adsorbent 8 and a water lifting pipe 9 having a pump 10 and an ejector 11. Due to the presence of the latter, the water-air mixture that creates the flotation effect enters. tank 4 to overflow pipe, improved cleaning quality. 2 hp f-ly, 1 ill. W (L: l N9.

Description

14

The invention relates to wastewater treatment devices containing petroleum products and 1 suspended substances, and can be used to clean wastewater from carwash, railway and air transport.

The aim of the invention is to improve the quality of cleaning and compactness of the installation.

The drawing shows the proposed installation.

The installation consists of a housing 1 with a nozzle 2 for supplying contaminated water, a volume chamber 3 for pre-collecting coarse impurities, made in the form of a two-chamber sand-trap container with a lifting device.

The removable chamber 3 is located in the receiving tank 4, installed above the settling chamber 5

The tank 4 and the settling chamber 5 are hydraulically connected to each other by means of an overflow pipe 6, in which an additional filter is installed in the form of a removable sleeve 7 with adsorbent 8 and a lifting pipe 9 to which the pump 10 is connected, on the outlet of which an ejector 11 is installed.

The filter 12 fine cleaning, also made in the form.

site or directly to the car - a dump truck. Oil products are regenerated or burned to produce heat.

From the container, the liquid through the sleeve 7, filled with the adsorbent 8, flows through the overflow pipe 6 into the lower part of the settling chamber 5.

Pump 10 for contaminated runoff water with suspended solids and dissolved petroleum products is injected from the lower bunker part of the settling chamber 5 and fed through the ejector 11 into the lifting pipe 9 to form a water-blown mixture that creates a flotation effect. Petroleum particles and suspended solids are poured in to the formed particle-bubble compounds. Floating they form a foam, which is poured over the nozzle 17 into the container up to the liner with the adsorbent 8, which, for example, uses a mixture of activated carbon sand with a particle size of 0.5-5 mm.

For guarantee: cleaning, in front of the chamber 13 to collect the filtrate, the waste liquid goes another stage in the filter 12, similar to that when it enters the settling chamber 5.

A pump 14 is provided for supplying the rev.ot water, and if not necessary.

volume is installed at the top of the reusable

measures 13 for the filtrate. The filtrate chamber 13 is provided with a pump 14 and a nozzle 15 for the filtrate to exit.

The installation works as follows, 40

Sewage water through the nozzle 2 enters the two-chamber sand-trap container equipped with a lifting device 16. The flow velocity is controlled by the vertical septum dividing the container into two 45 parts, and at the same time the sedimentation of suspended solids above 400 microns, t. e. 60% of incoming psham.

The presence of the septum ensures the reliability of trapping sludge due to gravity forces. When liquid containing up to 3000 mg / l with a flow rate of 10 l / s is received, the container output is calculated no more than once per shift.

The container is unloaded by a lifting mechanism on the sand 50

water for technical needs, the water is discharged through pipe 15 to the ground or to the relief.

Claims (2)

1. Wastewater treatment plant containing a receiving tank with a removable chamber for trapping coarse impurities, successively placed behind it a settling chamber and a chamber for collecting a filter with a fine filter in the upper part of the latter, a pump for pumping out and liquid from the sludge chamber and an ejector installed on the outlet of the pump, characterized in that, in order to improve the quality of cleaning, it is equipped with water-lifting and overflow vertical pipes, in the latter of which additional filter, with the ego, the receiving tank is outdated above the bottom 0 five five 0 water for technical needs, the water through the pipe 15 is discharged into the sewer system or on the relief. Invention Formula 1. A wastewater treatment plant containing a receiving tank with a removable chamber for trapping coarse impurities, sequentially placed behind it a settling chamber and a chamber for collecting filtrate with a filter for fine cleaning in the upper part of the latter, a pump for pumping out both liquid from the settling chamber and an ejector , installed at the outlet of the pump, characterized in that, in order to improve the quality of cleaning, it is equipped with water-lifting and overflow vertical pipes, in the latter, of which the addition is placed ny filter with ego receptacle ustaryuilen above otstoy31452796 Noah’s chamber, one end of the pipe, is made in the form of a removable sleeve, is mounted in the tank, and the other in a filled with adsorbent, a stand-up chamber above its bottom and a pump 3 is attached to the water-lifting pipe. with an ejector. 2. Installation under item 1, about t of l and - overflow pipe is located in the view that the filter is below the end of the lifting pipe.