RU148902U1 - MOBILE SEWAGE TREATMENT PLANT - Google Patents

Abstract

A mobile wastewater treatment plant, comprising a chamber with a reactor, a sump and an electrolyzer placed in it, characterized in that the reactor consists of a mixing section connected by a pipeline to a chemical metering pump and a mixing section connected by a pipeline to a flocculant metering pump, with insoluble electrodes placed in them, while the electrolyzer is located between the reactor and the sump, and the installation additionally contains filter blocks connected in series with the sump ation and sorption.

Description

The proposed utility model relates to devices for wastewater treatment from suspended solids, emulsified oil products, dissolved and dispersed organic compounds, compounds of non-ferrous and heavy metals, surfactants and mechanical impurities, and can be used in various industries.

Known installation for wastewater treatment, containing a mobile chamber, which houses a tank for biological wastewater treatment, a reactor for their subsequent clarification, a separator for separating precipitated particles and water and a bunker for collecting sludge placed under it [French Patent No. 2134659, C02B 1 / 00; declared 04/29/1971; publ. 11/08/1972].

The disadvantage of the installation is the low efficiency of water treatment.

Known mobile installation containing an aeration chamber, a sludge for sedimentation, equipped with a floating foam, and a chlorination chamber [US Patent No. 3764011, B01D 21/00; C02F 3/12; declared 12/16/1971; publ. 10/09/1973].

The disadvantage of this installation is the low degree of purification of water from oil products, dissolved and dispersed organic compounds, suspended and surfactants, compounds of heavy and non-ferrous metals.

Known, selected as a prototype "Mobile installation for wastewater treatment" [A. USSR No. 899487 C02F 1/46, G05D 27/00; declared 05/27/1980; publ. 01/23/1982. Bull. No. 3], including a chamber with a reactor, a sump and an electrolyzer placed in it.

The disadvantage of this installation is the low degree of wastewater treatment from suspended solids, emulsified oil products, dissolved and dispersed organic compounds, solids, surfactants.

The technical problem and the result, which is directed by the claimed device is to increase the degree of wastewater treatment from suspended solids, emulsified oil products, dissolved and dispersed organic compounds, solids, surfactants.

The technical result is achieved by the fact that the mobile wastewater treatment plant includes a chamber with a reactor, a sump and an electrolyzer placed therein. According to the proposed utility model, a new one is that the reactor consists of a mixing section connected by a pipeline to a chemical metering pump and a mixing section connected by a pipeline to a flocculant metering pump with insoluble electrodes placed in them, while the electrolyzer is located between reactor and sump, and the installation additionally contains blocks connected in series with the sump filtration and sorption.

The proposed utility model is illustrated by figures of drawings. The figure 1 shows a General view of the proposed mobile installation, figure 2 - in plan.

The mobile unit consists of a chamber 16, with a reactor placed in it, consisting of mixing sections 7 and mixing 9, an electrolyzer 11 and a settling tank 35, while insoluble electrodes 12 are placed in the reactor and electrolyzer sections, and the lower 2 and upper 4 level gauges are placed in the mixing section level, in the sump - level gauges of the lower 22 and upper 23 levels, and in the upper part of the chamber - foam collecting device 13; tanks 27 and 28 for the preparation, storage and distribution of reagent solutions; pumps 1 and 24 for the supply of wastewater; metering pumps 30 and 32 for dispensing reagent solutions; DC power source 26; filtration units 20 and sorption 34, equipped at the inlet and outlet with monometers 17 and 21, respectively; collection of sludge 3; control panel 29; pipelines. All elements are mounted on a mobile trolley 25, equipped with two 36 not swivel and two 37 swivel wheels and a handle 38 for moving it. Control of the unit’s movement is achieved by hand pulling the handle in the right direction due to the muscular strength of the operator. The use of a mobile installation will eliminate the need to lay utilities of sewage sewage from the source of their formation (storage tanks, process baths and tanks, etc.) on the territory of production departments, sections and workshops of industrial enterprises to stationary treatment facilities located at a considerable distance from each other distance, and to prevent and eliminate emergencies.

A mobile wastewater treatment plant operates as follows. Before starting work, the unit is moved to a source of wastewater generation or accumulation. Further, wastewater containing various contaminants (table) is pumped to the mixing section 7 of the reactor, where a solution of a chemical reagent from the tank 27 is dosed simultaneously through a pipe 31 by a metering pump 30 to change the pH value of the medium as a result of a chemical reaction in which the formation of sparingly soluble compounds of heavy and non-ferrous metals, dispersed organic compounds. The intensification of the mixing of wastewater with a solution of a chemical reagent is carried out by gas bubbles of hydrogen and oxygen generated by insoluble electrodes 12.

Next, the wastewater, overflowing through the upper edge of the overflow partition 8, enters the mixing section 9, formed by the space between the overflow partition 8 and the immersion partition 10. In the mixing section 9 of the reactor, at the same time as the wastewater enters, flocculant solution from the tank 28 is dosed through the pipe 33 metering pump 32. A mixture of wastewater with a flocculant solution provides coarsening of suspended particles, sparingly soluble compounds of heavy and non-ferrous metals, dispersed organic compounds, coalescence of em lgirovannyh oil products and surfactants. The intensification of the mixing of wastewater with a flocculant solution is carried out by gas bubbles of hydrogen and oxygen generated by insoluble electrodes 12.

From the mixing section 9 of the reactor, the wastewater through the gap between the bottom of the chamber and the lower edge of the immersion wall 10 enters the electrolyzer 11, where there is a partial (more than 95%) extraction of suspended solids, emulsified oil products, dispersed organic compounds, surface-active substances, poorly soluble non-colored compounds and heavy metals on the surface of the water mirror in the form of a sludge under the influence of gas bubbles of hydrogen and oxygen generated by insoluble electrodes 12.

Further, the wastewater, overflowing through the overflow partition 14, enters through the collection pocket 15 into the sump 35, which collects mechanical impurities, as well as pollution particles, the density of which is greater than the density of water.

Wastewater is pumped from the sump by pump 24 through a pipe 19 to a filtration unit 20 for deep cleaning of mechanical impurities, suspended solids, emulsified oil products, dispersed organic compounds, sparingly soluble non-ferrous and heavy metals and further to sorption unit 34 for deep cleaning of surface-active substances and dissolved organic pollutants, from which the treated wastewater is discharged from the installation through line 18.

The dispersed phase of contaminants that floated to the surface of the water during the wastewater treatment process in the reactor and electrolyzer in the form of suspended solids, emulsified oil products, dispersed organic compounds, surfactants, poorly soluble compounds of non-ferrous and heavy metals, is formed into a foam layer (slime), which moves from the surface of the water mirror by the foam collecting device 13 through the overflow partition 6 into the collection pocket 5, from where the slime flows into the collection 3.

The power of the insoluble electrodes 12 located in the mixing and mixing sections of the reactor and in the electrolyzer is controlled by a constant current source 26.

The technical result in solving this problem is achieved due to a certain sequence of equipment placement in the installation, in which the wastewater in the reactor and the electrolyzer is partially purified from suspended solids, emulsified oil products, dispersed organic compounds and surfactants, non-ferrous and heavy metal compounds, and then partial cleaning of mechanical impurities in the sump and then deep cleaning of mechanical impurities, suspended matter PTS, emulsified mineral oil, particulate organic compounds, sparingly soluble compounds of heavy metals and nonferrous filtering unit and deep cleaning of dissolved organic compounds and surfactants on sorption unit.

Based on the experimental results, it follows that the proposed design of a mobile wastewater treatment plant allows to increase the degree of wastewater treatment from suspended solids, emulsified oil products, dissolved and dispersed organic compounds, surfactants, solids, non-ferrous and heavy metal compounds.

Claims (1)

A mobile wastewater treatment plant, comprising a chamber with a reactor, a sump and an electrolyzer placed in it, characterized in that the reactor consists of a mixing section connected by a pipeline to a chemical metering pump and a mixing section connected by a pipeline to a flocculant metering pump, with insoluble electrodes placed in them, while the electrolyzer is located between the reactor and the sump, and the installation additionally contains filter blocks connected in series with the sump ation and sorption.

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