RU2074836C1 - Apparatus for cleaning water - Google Patents

Abstract

FIELD: waste water purification. SUBSTANCE: apparatus contains one or several successively connected section incorporating deepened air lift providing aeration of water and circulation flow of water and charge. Improvement consists in eliminating dense or fluidized charge bed that simplifies design and excludes necessity of rinsing charge and allows use of various- type charges with polyfunctional composition. EFFECT: enhanced efficiency of operation. 2 dwg

Description

 The invention relates to deep wastewater treatment, as well as natural waters used for technical and drinking purposes.

 The well-known installation [1] for microbiological wastewater treatment contains an aeration system, an aerobic water treatment section made of a number of adjacent chambers, which are separated by vertical partitions communicating by overflows, in which a sorbent load, water supply and drain pipes are located. A container with “ruffles” fixed in it is installed in the loading space.

The known device has significant disadvantages:
design complexity (the presence of chambers for various purposes, a large number of pumping units and pipelines);
limited technological capabilities of loading in the form of "ruffs" (sorption of microorganisms only);
the need for periodic washing, loading, and the sediment and washed biofilm passes through all subsequent sections (there is no system for draining the wash water).

 The purpose of the invention is to simplify the design of the device, as well as expanding the scope and technological capabilities.

 To achieve the goal in the device, adjacent chambers are made with conical or pyramidal bottoms, the aeration system is equipped with flooded airlifts located in each chamber with reflectors, flows between the chambers are made in the form of windows in the upper parts of vertical partitions with semi-loaded partitions installed in front of them.

Figure 1 in vertical section shows a device for water purification, consisting of four sections; figure 2 variant of its rational layout,
A water purification device comprises a pipeline (tray) 1 for supplying water for purification, one or more loading sections 2, in which flooded airlifts 2 with reflectors 4 are placed. Compressed air is supplied through a pipeline 5 for the operation of airlifts. Sections 2 are connected by overflow windows 6 equipped with semi-submerged partitions 7, preventing the removal of the load. The removal of purified water is carried out by a pipeline or tray 8.

 The device operates as follows.

 Sewage through pipeline 1 enters section 2, where the sorbing biomass and / or dissolved contaminants are loaded. In the presence of oxygen, biological removal of contaminants occurs. The contact of the wastewater with the charge, oxygen saturation of the water is ensured by a flooded airlift 3 having a reflector 4. Compressed air for the operation of the airlift is supplied through pipeline 5. Airlift 3 provides a downward flow of wastewater and charge. Wastewater flows from section to section due to the difference in water levels through overflow windows 6. The presence of semi-submerged partitions 7 and a downward flow prevents the removal of the movable load. The removal of purified water is carried out by a pipe 8 or a tray.

 If necessary, in one or several sections a fixed load can be placed (bulk in containers; frame type "ruff", "wii" - on additionally mounted hooks).

 Using the device in laboratory practice allows you to test various types of downloads, including those with a specific gravity of less than 1, as well as their various combinations both in one section and their placement in series-connected sections.

 The device of industrial scale is easy to install, and during operation it requires virtually no maintenance and constant monitoring. Flushing the load and the associated shutdown is not required. Replenishing or replacing a load, as well as varying it with different combinations of loads (including frame fixed and moving bulk) are quickly feasible. If necessary, it is not difficult to organize a separate stage of regeneration of the load. The device is compact even when creating a technological chain of several sections, it is not energy-intensive, can be unified in a wide range of performance.

 These properties allow the use of devices for deep wastewater treatment, in water treatment for use in technical and cultural purposes (drinking water, water treatment in swimming pools, fish farms, etc.).

Claims (1)

 A water purification device comprising an aeration system, an aerobic water treatment section made of a number of adjacent, separated by vertical partitions, communicating by overflow chambers in which a sorbent load is placed, water supply and drain pipes, characterized in that the chambers are made with conical or pyramidal bottoms , the aeration system is equipped with flooded airlifts with reflectors located in each chamber, flows between the chambers are made in the form of windows in the upper parts of vertical partitions with the installation sealed in front of them by semi-submersible partitions.

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