Floating bed equipment for cleaning sewage

Abstract

A float bed type apparatus for cleaning-up sewage is composed of wind-driven electric generator, amplibian plant absorbing N and P, algae-suppressing biological filter, material, nitrifying and antinitrifying biologic filter materials, aerator, buoy, accumulator, steel frames A and B, supporter of plant root system, air pump, air pipe, electric wires A and B, and underwater lamp. Its advantages include simple structure, easy installation, long service life, low cost and high effect.

Description

technical field [0001] The invention relates to a sewage purification device, in particular to a floating bed sewage purification device, which belongs to the field of environmental protection sewage purification. Background technique [0002] At present, many lakes, reservoirs, rivers and other natural water bodies in our country are mostly experiencing eutrophication, black odor and other phenomena. In some natural water bodies, the water body is basically in a static state, or the flow velocity of the water body is relatively small. Due to the influence of water depth and other reasons, the water quality of each layer of water body is different; the surface water is in contact with the outside atmosphere, and the DO value is high, but as the water depth increases, the DO value gradually decreases, and the DO value at the bottom layer basically drops to zero. . The bottom water is in a state of severe anoxic condition, and the bottom mud is in an anaerobic condition, and...

AI Technical Summary

Problems solved by technology

The bottom water is in a state of severe anoxic condition, and the bottom mud is in an anaerobic condition, and a large amount of organic pollution accumulates, resulting in increasingly serious eutrophication of the water body, and the frequent occurrence of "algal blooms", which seriously damages the water body ecology. The limitations of factors such as wide area, large area, and complex terrain have largely restricted the development of water quality control work.

In addition, due to the lack of power facilities near many natural water bodies, the high operating cost of traditional water treatment is also an important factor that plagues water body governance.

After searching the patent literature, it was found: 94108064.1, the name is: floating bed filter, and the technology is self-described as: this device is suitable for intercepting solid particles contained in liquid, and it is composed of a shell, an inlet, an outlet, a porous plate, and a filter material , where the shell is a variable-diameter cylinder structure with a large upper part, a smaller lower part, and a progressive middle part. The inlet is at the lower part of the shell, the outlet is at the upper part of the shell, the perforated plate is placed in the upper cavity of the shell, and the filter material is installed under the perforated plate. ; Although this floating bed filter can achieve deep filtration, high operating flow rate, low resistance, and has the characteristics of sewage interception capacity, but this technology only overcomes the low operating flow rate, large resistance, and very low sewage interception capacity of existing filters. The disadvantage is that it cannot be combined with direct oxygenation and aeration of the water body, nor can it be combined with the filter material of the biological carrier and the underwater lighting lamp to further treat the sewage. Its treatment ability and effect on the sewage are very limited, and it cannot be used in many lakes, Most of the natural water bodies such as reservoirs and rivers have eutrophication, black and odorous sewage treatment

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