Induced air flotation and dissolved air floatation combined flocculate removal system
A technology of dissolved air flotation and flocculation, which is applied in the fields of flocculation/sedimentation water/sewage treatment, chemical instruments and methods, flotation water/sewage treatment, etc. problems, to achieve the effect of simple and reliable structure, high efficiency, and ingenious design
Inactive Publication Date: 2017-03-29
BEIJING BCEG GOLDEN SOURCES ENVIRONMENT PROTECTIONS DEV CO LTD
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Problems solved by technology
[0002] The removal of flocs in the existing sewage treatment mostly adopts the multiple aeration method of the aerator. This method consumes more energy, and the removal effect is very unsatisfactory. There will be a large amount of flocs remaining, which will affect the water quality after treatment.
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[0008] Such as figure 1 As shown, an air-entraining and dissolved air flotation combined floc removal system of the present invention includes an air-entraining air flotation 1 with a floc floating outlet 2 on the top, and the bottom of the air-entraining air flotation 1 passes through an air intake pipe 9 An aerator 10 is connected, the lower part of the side wall of the air-entraining air flotation 1 is provided with a liquid inlet 11, and one side of the air-entraining air flotation 1 is connected to a dissolved air flotation 7 through an air supply pipe 8, and the dissolved air flotation The lower part of the side wall of the float 7 is provided with a water inlet 6, and the dissolved air float 7 is provided with an air suction pump 3 at one end far away from the air-entrained air float 1, and the other end of the air suction pump 3 is connected with a water pump extending below the water surface of the treatment pool 5. Exhaust pipe 4.
[0009] In the combined floc remov...
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The invention provides an induced air flotation and dissolved air floatation combined flocculate removal system. The system comprises an induced air floater with the top provided with a flocculate floating opening, the bottom of the induced air floater is connected with an aeration machine through an air inlet tube, the lower portion of the sidewall of the induced air floater is provided with a liquid inlet, one side of the induced air floater is connected with a dissolved air floater through an air feeding tube, the lower portion of the sidewall of the dissolved air floater is provided with a water inlet, one end of the dissolved air floater far from the induced air floater is provided with an air suction pump, and the other end of the air suction pump is connected with an air discharge tube stretching to a position below the water level in a treatment tank. Flocculated water goes through the liquid inlet of the induced air floater and enters the induced air floater when the system works, the aeration machine is powered on, generated micro-bubbles enter the induced air floater to make flocculate float out through the flocculate outlet in order to remove the flocculate, the remaining flocculated water continuously enters the dissolved air floater under the action of the air suction pump, clear water is added to the dissolved air floater through the water inlet, the micro-bubbles and the clear water are mixed and are intercut by the blade of the air suction pump to form milky ultra small dissolved air water, the milky ultra small dissolved air water is discharged to the treatment tank, and residual flocculate is removed. The system has the advantages of high efficiency and low energy consumption.
Description
technical field [0001] The invention relates to a floc removal system, in particular to a combined floc removal system of entraining air and dissolved air flotation. Background technique [0002] The removal of flocs in the existing sewage treatment mostly adopts the multiple aeration method of the aerator. This method consumes more energy, and the removal effect is very unsatisfactory. There will be a large amount of flocs remaining, which will affect the water quality after treatment. . Contents of the invention [0003] In order to solve the above problems, the present invention provides a combined floc removal system of entraining air and dissolved air flotation. [0004] A combined floc removal system of air-entrainment and dissolved air flotation to achieve the purpose of the present invention, comprising an air-entrainment air flotation with a floc floating outlet on the top, and an aerator connected to the bottom of the air-entrainment air flotation through an air...
Claims
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IPC IPC(8): C02F1/24C02F1/52
CPCC02F1/24C02F1/52C02F2301/08
Inventor 李伟峰张文燕左雄曹雨佳郝洋
Owner BEIJING BCEG GOLDEN SOURCES ENVIRONMENT PROTECTIONS DEV CO LTD