Method using coagulation air floatation machine to treat sewage

A coagulation air flotation machine and sewage technology, which is applied in the direction of flotation water/sewage treatment, filtration treatment, water/sewage treatment, etc., can solve the problems of water resource pollution, small floc particles, poor sedimentation performance, etc., and promote Combination, small diameter, low cost effect

Active Publication Date: 2016-08-24
SICHUAN GERUISI ENVIRONMENT TECH CO LTD
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  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

However, the process of urbanization in our country has caused serious problems of water resource pollution, which is contrary to the principle of sustainable development that our country has always advocated. Our country must find ways to solve the problem of urban water pollution
[0005] On the other hand, during the treatment process of the sewage treatment plant, the sewage first flows into the coarse grid, and after the larger floating debris is removed through the coarse grid, then the sewage is removed through the fine grid to remove the fine floating debris, and then in th

Method used

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  • Method using coagulation air floatation machine to treat sewage

Examples

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Embodiment 1

[0023] A method of using a coagulation air flotation machine to treat sewage:

[0024] Filter the sewage, flocculate and settle, and then introduce the coagulation air flotation machine, the coagulation air flotation machine includes a cavity 2, the upper part of the cavity 2 is provided with a water inlet 1, and the inner wall of the cavity 2 is provided with stoppers 4 at intervals , the lower part of the cavity 2 is provided with a water outlet 10, and the top of the cavity 2 is provided with a motor 3, the motor 3 is connected to the impeller 7 through the rotating shaft 5 inside the cavity, and the impeller 7 is provided with three blades 8, and the rotating shaft 5 An air intake pipe 6 is provided, one end of the air intake pipe 6 is connected to the outside, the other end of the air intake pipe 6 is connected to the inside of the cavity 2 through the impeller 7, and an ultrasonic transmitter 9 is arranged on the inner side of the bottom of the cavity 2, and the ultrasoni...

Embodiment 2

[0026] A method of using a coagulation air flotation machine to treat sewage:

[0027] Filter the sewage, flocculate and precipitate, then introduce the coagulation air flotation machine, and then add 120mg / L aluminum sulfate; the motor 3 of the coagulation air flotation machine drives the blade 8 to work and rotate through the rotating shaft, so as to promote the mixed reaction of the coagulant and the impurities in the sewage , forming flocs; the ultrasonic transmitter 9 cavitates the air that enters the coagulation air flotation machine through the air intake pipe to generate fine air bubbles; Finally, scum is formed and removed, and the water treated with fine air bubbles is discharged from the outlet at the bottom of the coagulation air flotation machine.

Embodiment 3

[0029] A method of using a coagulation air flotation machine to treat sewage:

[0030] Filter the sewage, flocculate and precipitate, then introduce the coagulation air flotation machine, and then add 60mg / L aluminum sulfate, polyaluminum chloride and polyferric sulfate; the motor 3 of the coagulation air flotation machine drives the blade 8 to work and rotate through the rotating shaft, and promotes the mixing. The coagulant reacts with the impurities in the sewage to form flocs; the ultrasonic transmitter 9 cavitates the air that enters the coagulation air flotation machine through the intake pipe to generate fine air bubbles; the fine air bubbles float up and adhere to and take away the flocs during the floating process The flocs float up to the water surface with the micro-bubbles to form scum, which is removed, and the water treated with the micro-bubbles is discharged from the outlet at the bottom of the coagulation air flotation machine.

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Abstract

The invention provides a method using a coagulation air floatation machine to treat sewage. The method includes: the filtered and flocculently precipitated sewage is guided into the coagulation air floatation machine, and coagulant is added; the motor of the coagulation air floatation machine drives blades to rotate through a rotary shaft so as to allow the coagulant to have mixed reaction with the impurities in the sewage to form floc; an ultrasonic transmitter cavitates air entering the coagulation air floatation machine through an air inlet pipe to generate fine bubbles; the fine bubbles floats and adheres and carries away the floc during floatation; the floc floats to the water surface along with the fine bubbles and forms floating residues, the floating residues are removed, and the water treated by the fine bubbles is discharged from the water outlet in the bottom of the coagulation air floatation machine. The method has the advantages that the water treatment method is simple, low in cost and capable of effectively removing the impurities such as suspended particles, emulsified oil, fibers and heavy metal in the sewage, environmentally friendly, free of pollution and high in market application value.

Description

technical field [0001] The invention relates to the field of sewage treatment, in particular to a method for treating sewage by using a coagulation air flotation machine. Background technique [0002] With the influx of a large number of rural population into cities in our country, the urban population continues to increase, and the urban water resources have been severely damaged. Our country is facing the problem of water resource depletion. Water resources are the guarantee for human survival. It is a non-renewable resource. It not only affects people's production and life, but also has an important impact on my country's national conditions and national destiny. It can be seen that it is urgent to strengthen the urban sewage treatment work in our country. [0003] Urban sewage is mainly domestic sewage, industrial wastewater, etc. discharged in the city. These wastewater are mainly collected through the urban sewage pipe network or discharged into the water body after b...

Claims

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Application Information

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IPC IPC(8): C02F9/04
CPCC02F1/001C02F1/24C02F1/5236C02F9/00
Inventor 雷弢陈方方
Owner SICHUAN GERUISI ENVIRONMENT TECH CO LTD
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