Mechanical stirring type co-coagulation flotation coupled two-layer horizontal sedimentation tank water purifying system and method thereof

A technology of mechanical stirring and copolymerization air flotation, which is applied in the direction of precipitation separation, separation methods, chemical instruments and methods, etc., can solve the problems that the treatment effect is not obvious and the effect is small, so as to improve the collision efficiency and adhesion efficiency and facilitate operation , the effect of reducing water loss

Inactive Publication Date: 2017-06-20
SHANDONG JIANZHU UNIV
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Problems solved by technology

[0005] At the same time, the traditional dissolved air flotation process only introduces air to produce ordinary air microbubbles. Although it has achieved some good results in the treatment of low-temperature, low-turbidity, and high-a

Method used

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  • Mechanical stirring type co-coagulation flotation coupled two-layer horizontal sedimentation tank water purifying system and method thereof

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0042] Example 1

[0043] A mechanical agitation type copolymerization air flotation coupled with double-layer advection sedimentation tank water purification system for treating ordinary reservoir water. Connected processing system, external ozonation dissolved air flotation device and release device, such as figure 1 shown:

[0044] (1) The three-stage mechanical stirring co-aggregation flocculation tank includes three coagulation chambers, which are coagulation 1 chamber 4, coagulation 2 chamber 5 and coagulation 3 chamber 6, and coagulation 1 chamber 4 is provided with two mechanical rotating shafts 3 ; Coagulation 2 room 5 and coagulation 3 room 6 are provided with a mechanical rotating shaft 3, coagulation 1 room 4 is connected with a water inlet pipe 1; water inlet pipe 1 is connected with a dosing pipe 2, and is co-aggregated in a three-stage mechanical stirring flocculation tank The front end of the lower part of the access. The installation of mechanical shaft 3 s...

Example Embodiment

[0050] Example 2

[0051] A method for treating ordinary reservoir water by using the mechanical stirring type copolymerization air flotation coupled with a double-layer advection sedimentation tank water purification system in Example 1, that is, a copolymerization air flotation coupled with advective sedimentation water purification method, which specifically includes the following steps:

[0052] 1) The raw water enters the three-stage mechanical agitation co-coagulation flocculation tank from the lower end of the coagulation chamber 1 and 4 through the water inlet pipe 1. At the same time, the flocculant is added with the raw water through the dosing pipe 2. The coagulation chamber is fully coagulated under the action of the mechanical rotating shaft 3, and the baffle set between each coagulation chamber prevents the short flow of the incoming water and ensures sufficient coagulation. Dissolved water is released in chamber 5, and ozone is released at the same time to ozona...

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Abstract

The invention relates to a mechanical stirring type co-coagulation flotation coupled two-layer horizontal sedimentation tank water purifying system and a method thereof. Dissolved air flotation is organically combined with a two-layer horizontal sedimentation tank to form a novel floatation and sedimentation tank. Mechanical flocculation and the dissolved air floatation are organically combined through a co-coagulation flotation technology to form co-coagulation dissolved air floatation in order to enhance the stability of a bubble floc. The air floatation are organically combined with ozone oxidation to realize full contact with polluting substances in water in order to greatly enhance the ozone oxidation effect. Mechanical flocculation, co-coagulation flotation and two-layer horizontal sedimentation are organically combined, so the operation is convenient, and the stable bubble floc is formed while effectively controlling the rotating speed and reducing the water conservancy loss. The method has the advantages of flexible running manner, effective reduction of the running cost, high water quality change adaptability, simple structure, high efficiency, convenience in running, and wide application prospect.

Description

technical field [0001] The invention belongs to the technical field of air flotation water treatment, and relates to a copolymerization air flotation coupling advection sedimentation water purification process and method, in particular to a mechanical stirring type copolymerization air flotation coupling double layer advection sedimentation tank water purification system and method. Background technique [0002] At present, the problem of reservoir water pollution is becoming more and more serious, among which algae pollution is the most serious. At present, the reservoir water tends to show the characteristics of high algae and high organic matter in summer and low temperature and low turbidity in winter. As the degree of eutrophication in the water body increases year by year, the rate of algae proliferation is increasing. Especially in spring and autumn when the temperature changes greatly, algae outbreaks occur from time to time, which poses a great threat to the operati...

Claims

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Application Information

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IPC IPC(8): C02F1/24C02F1/78B01D21/04B01D21/08B01D21/00B01D21/28
CPCB01D21/0015B01D21/0033B01D21/04B01D21/08B01D21/286C02F1/24C02F1/78
Inventor 王永磊王文浩王宁王珊张克峰贾瑞宝宋武昌刘宝震徐学信薛舜许斐
Owner SHANDONG JIANZHU UNIV
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