Floating filter module, and water treatment apparatus and method using same

Abstract

The present invention relates to a floating filter module installed in a water treatment apparatus, such as in a public water treatment plant, a village water supply facility, a public sewage treatment plant, a wastewater treatment plant, or a village sewage treatment plant, in order to remove contamination particles. The floating filter module according to the present invention comprises: a hollow-type sintered filter having a plurality of fine pores which is arranged in wastewater within a water treatment tank in order to separate and filter the contamination particles from the wastewater introduced into the water treatment tank; a floating body connected to the sintered filter, and which floats to the surface of the wastewater within the water treatment tank so as to position the sintered filter at the upper portion of the wastewater in the water treatment tank; a main pipe communicating with an inner space of the sintered filter; a suction device coupled to the main pipe in order to provide a suction force to the sintered filter through the main pipe, thereby suctioning the wastewater in the water treatment tank through the plurality of fine pores and into the sintered filter; and a compressed-air supply apparatus having a compressed-air supply tube communicating with the inner space of the sintered filter through the main tube and an air compressor coupled to the compressed-air supply tube in order to supply compressed air into the inner space of the sintered filter, thereby releasing from the sintered filter the contamination particles that clog the fine pores of the sintered filter.

Description

technical field [0001] The present invention relates to a floating filter module installed on water treatment devices of public water purification treatment plants, community water supply facilities, public sewage treatment plants, wastewater treatment plants, community sewage treatment plants, etc., for removing fine pollution particles, and more In detail, it relates to a floating filter module disposed on the upper side of sewage and waste water in a treatment tank for separating and filtering only clear water with a relatively low concentration of suspended solids, and a water treatment device using the module and method. Background technique [0002] Continuous industrialization and urbanization have led to increasingly serious environmental pollution, and the forms of discharged sewage, wastewater, and dirty water (hereinafter referred to as "sewage and wastewater") have become increasingly diverse, and facilities for treating them have also become sophisticated, Alon...

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Problems solved by technology

[0011] However, as described above, the conventional submerged separation membrane is placed in the middle or lower part of the treatment tank water with a relatively high concentration of suspended solids (SS or MLSS), so the fine particles of the submerged separation membrane will be clogged in a short time. Pores, resulting in a sharp drop in the separation and filtration efficiency of fine pollutant particles

[0012] Moreover, the prior art does not provide an effective cleaning method for impregnated separation membranes with clogged micropores

For example, although Korea Granted Patent Publication No. 0718791 provides a method for cleaning the impregnated separation membrane with compressed air, since air is injected into the interior of the impregnated separation membrane after cleaning, during the re-absorption process of the impregnated separation membrane, Cavitation in suction pump

And, Korean Authorized Patent Publication No. 1000742 or Korean Authorized Patent Publication No. 0489328 discloses a method for cleaning an impregnated separation membrane whose micropores are blocked by reverse feeding sewage and wastewater, but this cleaning method utilizing reverse sewage and wastewater There is a problem with long cleaning time

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